 HELSINKI    1905     JANUARY                                        HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                  1603                               1499                               1629                  1577
 02                                  1531                               1650                               1551                  1577
 03                                  1546                               1473                               1588                  1536
 04                                  1623                               1561                               1686                  1623
 05                                  1457                               1576                                828                  1287

 06                                  1332                               1389                               1488                  1403
 07                                  1420                               1461                               1524                  1468
 08                                  1514                               1436                               1607                  1519
 09                                  1498                               1587                               2075                  1720
 10                                  1529                               1545                               1722                  1599

 11                                  1612                               1503                               1363                  1493
 12                                  1565                               1524                               1290                  1460
 13                                  1482                               1555                               1581                  1539
 14                                  1533                               1642                               1294                  1490
 15                                  1389                               1472                               1586                  1482

 16                                  1482                               1477                               1638                  1532
 17                                  1529                               1445                               1305                  1426
 18                                  1456                               1534                               1555                  1515
 19                                  1466                               1591                               1456                  1504
 20                                  1633                               1430                               1633                  1565

 21                                  1554                               1476                               1512                  1514
 22                                  1663                               1268                               1414                  1448
 23                                  1554                               1575                               1627                  1585
 24                                  1612                               1497                               1565                  1558
 25                                  1591                               1513                               1680                  1595

 26                                  1529                               1280                               1638                  1482
 27                                  1518                               1560                               1550                  1543
 28                                  1477                               1607                               1393                  1492
 29                                  1535                               1644                               1347                  1509
 30                                  1447                               1421                               1561                  1476
 31                                  1520                               1603                               1790                  1638

 Mean 
 ALL                                 1523                               1509                               1531                  1521
 QUIET                                                                                                                               
 DIST.                                                                                                                               



 HELSINKI    1905     FEBRUARY                                       HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                  1561                               1451                               1613                  1542
 02                                  1405                               1472                               1561                  1479
 03                                  1103                               1394                                941                  1146
 04                                  1311                               1363                               1373                  1349
 05                                  1378                               1472                               1358                  1403

 06                                  1347                               1347                               1534                  1409
 07                                  1419                               1362                               1529                  1437
 08                                  1503                               1467                               1519                  1496
 09                                  1441                               1389                               1639                  1490
 10                                  1529                               1347                               1555                  1477

 11                                  1544                               1424                               1632                  1533
 12                                  1576                               1331                               1493                  1467
 13                                  1477                               1363                               1607                  1482
 14                                  1399                               1472                               1597                  1489
 15                                  1503                               1508                               1555                  1522

 16                                  1399                               1331                               1435                  1388
 17                                  1518                               1420                               1732                  1557
 18                                  1258                               1420                               1534                  1404
 19                                  1529                               1409                               1545                  1494
 20                                  1482                               1461                               1555                  1499

 21                                  1597                               1405                               1576                  1526
 22                                  1586                               1446                               1602                  1545
 23                                  1534                               1383                               1482                  1466
 24                                  1586                               1435                               1482                  1501
 25                                  1570                               1471                               1612                  1551

 26                                  1544                               1388                               1554                  1495
 27                                  1596                               1294                               1424                  1438
 28                                  1503                               1445                               1695                  1548
                                                                                                                                     
                                                                                                                                     
                                                                                                                                     

 Mean 
 ALL                                 1471                               1410                               1526                  1469
 QUIET                                                                                                                               
 DIST.                                                                                                                               
 HELSINKI    1905     MARCH                                          HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                    73                               1659                               1472                  1068
 02                                  1519                               1503                               1305                  1442
 03                                  1124                               1170                               1420                  1238
 04                                  1181                               1233                               1498                  1304
 05                                  1482                               1384                               1789                  1552

 06                                  1493                               1306                               1638                  1479
 07                                  1243                               1409                               1425                  1359
 08                                  1472                               1170                               1628                  1423
 09                                  1385                               1338                               1494                  1406
 10                                  1405                               1509                               1426                  1447

 11                                  1598                               1572                               1577                  1582
 12                                  1561                               1457                               1619                  1546
 13                                  1478                               1353                               1670                  1500
 14                                  1477                               1498                               1675                  1550
 15                                  1446                               1420                               1612                  1493

 16                                  1435                               1337                               1789                  1520
 17                                  1462                               1472                               1743                  1559
 18                                  1509                               1447                               1691                  1549
 19                                  1676                               1416                               1619                  1570
 20                                  1634                               1546                               1619                  1600

 21                                  1567                               1562                               1655                  1595
 22                                  1609                               1603                               1645                  1619
 23                                  1660                               1343                               1702                  1568
 24                                  1608                               1473                               1748                  1610
 25                                  1608                               1509                               1681                  1599

 26                                  1582                               1343                               1733                  1553
 27                                  1753                               1629                               1629                  1670
 28                                  1644                               1509                               1722                  1625
 29                                  1707                               1535                               1837                  1693
 30                                  1557                               1541                               1697                  1598
 31                                  1655                               1655                                                     1655

 Mean 
 ALL                                 1471                               1448                               1625                  1515
 QUIET                                                                                                                               
 DIST.                                                                                                                               



 HELSINKI    1905     APRIL                                          HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                  1649                               1967                               1545                  1720
 02                                  1061                               1503                               1436                  1333
 03                                  1269                               1399                               1581                  1416
 04                                  1571                               1612                               1586                  1590
 05                                  1435                               1467                               1498                  1467

 06                                  1435                               1513                               1591                  1513
 07                                  1524                               1368                               1649                  1514
 08                                  1510                               1411                               1614                  1512
 09                                  1561                               1561                               1629                  1584
 10                                  1494                               1416                               1655                  1522

 11                                  1494                               1380                               1583                  1486
 12                                  1583                               1406                               1557                  1515
 13                                  1456                               1321                               1701                  1493
 14                                  1570                               1482                               1851                  1634
 15                                  1664                               1430                               1731                  1608

 16                                  1508                               1518                               1643                  1556
 17                                  1529                               1477                               1685                  1564
 18                                  1498                               1420                               1721                  1546
 19                                  1603                               1493                               1660                  1585
 20                                  1546                               1374                               1681                  1534

 21                                  1577                               1561                               1655                  1598
 22                                  1632                               1388                               1710                  1577
 23                                  1534                               1435                               1690                  1553
 24                                  1596                               1575                               1767                  1646
 25                                  1586                               1560                               1825                  1657

 26                                  1701                               1389                               1716                  1602
 27                                  1560                               1441                               1716                  1572
 28                                  1472                               1347                               1717                  1512
 29                                  1665                               1535                                                     1600
 30                                  1483                               1478                               1873                  1611
                                                                                                                                     

 Mean 
 ALL                                 1526                               1474                               1664                  1555
 QUIET                                                                                                                               
 DIST.                                                                                                                               
 HELSINKI    1905     MAY                                            HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                  1367                               1570                               1601                  1513
 02                                  1429                               1486                               1705                  1540
 03                                  1486                               1408                               1751                  1548
 04                                  1491                               1439                               1673                  1534
 05                                  1486                               1424                               1674                  1528

 06                                  1446                               1472                               1753                  1557
 07                                  1477                               1561                               1675                  1571
 08                                  1529                               1540                               1815                  1628
 09                                  1550                               1389                               1721                  1553
 10                                  1535                               1451                               1748                  1578

 11                                  1561                               1494                               1743                  1599
 12                                  1577                               1488                               1717                  1594
 13                                  1634                               1426                               1800                  1620
 14                                  1987                               1603                               1785                  1792
 15                                  1462                               1545                               1789                  1599

 16                                  1571                               1597                               1857                  1675
 17                                  1639                               1498                               1748                  1628
 18                                  1618                               1597                               1925                  1713
 19                                  1654                               1623                               1758                  1678
 20                                  1431                               1644                               1727                  1601

 21                                  1562                               1603                               1790                  1652
 22                                  1629                               1395                               1770                  1598
 23                                  1656                               1645                               1807                  1703
 24                                  1625                               1557                               1801                  1661
 25                                  1530                               1478                               1722                  1577

 26                                  1551                               1634                               1733                  1639
 27                                  1628                               1644                               2096                  1789
 28                                  1301                               1608                               2102                  1670
 29                                  1369                               1421                               1957                  1582
 30                                  1437                               1478                               1821                  1579
 31                                  1535                               1530                               1831                  1632

 Mean 
 ALL                                 1540                               1524                               1787                  1617
 QUIET                                                                                                                               
 DIST.                                                                                                                               



 HELSINKI    1905     JUNE                                           HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                  1467                               1524                               1774                  1588
 02                                  1493                               1540                               1748                  1594
 03                                  1566                               1545                               1727                  1613
 04                                  1619                               1686                               1650                  1652
 05                                  1775                               1598                               1515                  1629

 06                                  1453                               1781                               1692                  1642
 07                                  1370                               1567                               1739                  1559
 08                                  1515                               1318                               1801                  1545
 09                                  1459                               1578                               1750                  1596
 10                                  1330                               1512                               1714                  1519

 11                                  1251                               1906                               1776                  1644
 12                                  1376                               1438                               1667                  1494
 13                                  1401                               1598                               1624                  1541
 14                                  1504                               1582                               1805                  1630
 15                                  1425                               1399                               1706                  1510

 16                                  1471                               1507                               1658                  1545
 17                                  1511                               1439                               1730                  1560
 18                                  1525                               1551                               1801                  1626
 19                                  1441                               1514                               1717                  1557
 20                                  1534                               1560                               1690                  1595

 21                                  1590                               1377                               2016                  1661
 22                                  1465                               1517                               1892                  1625
 23                                   972                                899                               1560                  1144
 24                                  1341                               1310                                                     1325
 25                                  1299                               1434                               1725                  1486

 26                                  1345                               1486                               1704                  1512
 27                                  1350                               1485                               1729                  1521
 28                                  1490                               1578                               1807                  1625
 29                                  1687                               1723                               1853                  1754
 30                                  1650                               1562                               1775                  1662
                                                                                                                                     

 Mean 
 ALL                                 1456                               1517                               1736                  1570
 QUIET                                                                                                                               
 DIST.                                                                                                                               
 HELSINKI    1905     JULY                                           HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                  1583                               1614                               1838                  1678
 02                                  1600                               1620                               1724                  1648
 03                                  1595                               1584                               1751                  1643
 04                                  1677                               1563                               1818                  1686
 05                                  1470                               1501                               1652                  1541

 06                                  1449                               1345                               1870                  1555
 07                                  1393                               1471                               1705                  1523
 08                                  1461                               1919                               1638                  1673
 09                                  1374                               1389                               1701                  1488
 10                                  1421                               1416                               1718                  1518

 11                                  1401                               1526                               1708                  1545
 12                                  1438                               1454                               1719                  1537
 13                                  1526                               1485                               1693                  1568
 14                                  1450                               1408                               1730                  1529
 15                                  1481                               1527                               1709                  1572

 16                                  1512                               1543                               1715                  1590
 17                                  1527                               1559                               1813                  1633
 18                                  1470                               1553                               1896                  1640
 19                                  1480                               1428                               1771                  1560
 20                                  1573                               1407                               1698                  1559

 21                                  1459                               1371                               1740                  1523
 22                                  1407                               1386                               1761                  1518
 23                                  1407                               1376                               1818                  1534
 24                                  1553                               1402                               1355                  1437
 25                                  1380                               1328                               1786                  1498

 26                                  1531                               1417                               1656                  1535
 27                                  1448                               1474                               1796                  1573
 28                                  1624                               1333                               1728                  1562
 29                                  1370                               1406                               1723                  1500
 30                                  1365                               1578                               1677                  1540
 31                                  1433                               1397                               1735                  1522

 Mean 
 ALL                                 1479                               1477                               1730                  1562
 QUIET                                                                                                                               
 DIST.                                                                                                                               



 HELSINKI    1905     AUGUST                                         HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                  1438                                                                  1834                  1636
 02                                  1839                                                                  1574                  1707
 03                                  1028                                                                  1490                  1259
 04                                  1267                                                                  1568                  1418
 05                                  1303                                                                  1740                  1522

 06                                  1417                               1329                               1625                  1457
 07                                   918                                                                  1682                  1300
 08                                                                                                                                  
 09                                                                                                                                  
 10                                                                                                                                  

 11                                                                                                                                  
 12                                                                                                                                  
 13                                                                     1537                                                     1537
 14                                                                                                                                  
 15                                                                                                                                  

 16                                                                                                                                  
 17                                                                                                                                  
 18                                                                                                                                  
 19                                                                                                                                  
 20                                                                     1559                                                     1559

 21                                                                                                                                  
 22                                                                                                                                  
 23                                                                                                                                  
 24                                                                                                                                  
 25                                                                                                                                  

 26                                  1407                                                                  1672                  1540
 27                                  1527                               1423                               1662                  1537
 28                                  1417                                                                  1599                  1508
 29                                  1406                                                                  1542                  1474
 30                                  1094                                                                  1468                  1281
 31                                  1260                                                                                        1260

 Mean 
 ALL                                 1332                               1462                               1621                  1472
 QUIET                                                                                                                               
 DIST.                                                                                                                               
 HELSINKI    1905     SEPTEMBER                                      HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                  1292                               1422                               1552                  1422
 02                                  1359                               1297                               1583                  1413
 03                                  1412                               1625                               1453                  1497
 04                                  1219                               1260                               1458                  1312
 05                                  1364                               1390                               1546                  1433

 06                                  1416                               1463                               1624                  1501
 07                                  1406                               1453                               1625                  1495
 08                                  1459                               1349                               1641                  1483
 09                                  1344                               1443                               1708                  1498
 10                                  1355                               1375                               1511                  1414

 11                                  1318                               1209                               1500                  1342
 12                                  1375                               1547                               1619                  1514
 13                                  1384                               1457                               1743                  1528
 14                                  1561                               1613                               1842                  1672
 15                                  1546                               1681                               1811                  1679

 16                                  1516                               1729                               1625                  1623
 17                                  1406                               1583                               1635                  1541
 18                                  1443                               1339                               1729                  1504
 19                                  1025                               1410                               1228                  1221
 20                                  1191                               1405                               1477                  1358

 21                                  1259                               1280                               1550                  1363
 22                                  1374                               1338                               1587                  1433
 23                                  1317                               1353                               1556                  1409
 24                                  1430                               1410                               1618                  1486
 25                                  1412                               1391                               1708                  1504

 26                                  1459                               1537                               1859                  1618
 27                                  1374                               1322                               1411                  1369
 28                                  1337                               1456                               1550                  1448
 29                                  1378                               1534                               1472                  1461
 30                                  1389                               1524                               1431                  1448
                                                                                                                                     

 Mean 
 ALL                                 1371                               1440                               1588                  1466
 QUIET                                                                                                                               
 DIST.                                                                                                                               



 HELSINKI    1905     OCTOBER                                        HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                  1306                               1358                               1555                  1406
 02                                  1326                               1378                               1534                  1413
 03                                  1483                               1566                               2060                  1703
 04                                  1446                               1566                               1540                  1517
 05                                  1508                               1482                               1659                  1550

 06                                  1483                               1254                               1399                  1379
 07                                  1358                               1415                               1431                  1401
 08                                  1457                               1358                               1436                  1417
 09                                  1395                               1442                               1494                  1444
 10                                  1384                               1650                               1551                  1528

 11                                  1405                               1395                               1457                  1419
 12                                  1478                               1374                               1556                  1469
 13                                  1524                               1535                               1446                  1502
 14                                  1478                               1400                               1582                  1487
 15                                  1467                               1421                               1604                  1497

 16                                  1524                               1530                               1493                  1516
 17                                  1456                               1378                               1472                  1435
 18                                  1570                               1284                               1550                  1468
 19                                  1524                               1306                               1519                  1450
 20                                  1535                               1420                               1722                  1559

 21                                  1514                               1436                               1410                  1453
 22                                  1462                               1358                               1571                  1464
 23                                  1467                               1301                               1519                  1429
 24                                  1540                               1426                               1618                  1528
 25                                  1493                               1327                               1353                  1391

 26                                  1592                               1368                               1530                  1497
 27                                  1509                               1410                               1582                  1500
 28                                  1587                               1374                               1462                  1474
 29                                  1290                               1249                               1472                  1337
 30                                  1337                               1363                               1524                  1408
 31                                  1498                               1389                               1519                  1469

 Mean 
 ALL                                 1464                               1404                               1536                  1468
 QUIET                                                                                                                               
 DIST.                                                                                                                               
 HELSINKI    1905     NOVEMBER                                       HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                  1524                               1384                               1597                  1502
 02                                  1556                               1410                               1623                  1530
 03                                  1639                               1514                               1561                  1571
 04                                  1509                               1431                               1327                  1422
 05                                  1509                               1244                               1327                  1360

 06                                  1478                               1306                               1410                  1398
 07                                  1540                               1431                               1826                  1599
 08                                  1483                               1420                               1535                  1479
 09                                  1493                               1363                               1488                  1448
 10                                  1550                               1197                               1623                  1457

 11                                  1488                               1373                               1550                  1470
 12                                  1498                               1420                               1524                  1481
 13                                  1134                               1228                               1327                  1230
 14                                  1436                               1208                               1514                  1386
 15                                  1245                               1385                                538                  1056

 16                                   694                               1105                               1656                  1152
 17                                  1094                               1183                               1307                  1195
 18                                  1271                               1557                               1349                  1392
 19                                  1448                               1245                               1427                  1373
 20                                  1375                               1328                               1360                  1354

 21                                  1473                               1145                               1416                  1345
 22                                  1353                               1228                               1452                  1344
 23                                  1421                               1140                               1208                  1256
 24                                  1359                               1333                               1385                  1359
 25                                  1431                               1369                               1509                  1436

 26                                  1436                               1384                               1285                  1368
 27                                  1426                               1270                               1363                  1353
 28                                  1317                               1317                               1369                  1334
 29                                  1322                               1332                               1462                  1372
 30                                  1358                               1425                               1505                  1429
                                                                                                                                     

 Mean 
 ALL                                 1395                               1323                               1427                  1382
 QUIET                                                                                                                               
 DIST.                                                                                                                               



 HELSINKI    1905     DECEMBER                                       HOURLY MEANS OF HORIZONTAL INTENSITY  =  156000 + TABULAR VALUES
                                                                                                                          ( 0.1  nT )

 Hour    0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23    Mean
 Day
 01                                  1380                               1442                               1505                  1442
 02                                  1427                               1520                               1432                  1460
 03                                  1370                               1505                               1588                  1488
 04                                  1478                               1369                               1166                  1338
 05                                  1249                               1374                               1436                  1353

 06                                  1352                               1410                               1394                  1385
 07                                  1342                               1285                               1472                  1366
 08                                  1342                               1431                               1467                  1413
 09                                  1347                               1446                               1587                  1460
 10                                  1436                               1504                               1530                  1490

 11                                  1410                               1499                               1488                  1466
 12                                  1717                               1572                               1530                  1606
 13                                  1224                               1354                               1291                  1290
 14                                  1353                               1260                               1447                  1353
 15                                  1363                               1405                               1477                  1415

 16                                  1379                               1452                               1483                  1438
 17                                  1396                               1338                               1401                  1378
 18                                  1412                               1458                               1380                  1417
 19                                  1422                               1406                               1479                  1436
 20                                  1422                               1354                               1188                  1321

 21                                  1255                               1396                               1479                  1377
 22                                  1401                               1291                               1437                  1376
 23                                  1344                               1469                               1495                  1436
 24                                  1412                               1464                               1573                  1483
 25                                  1490                               1458                               1479                  1476

 26                                  1432                               1484                               1464                  1460
 27                                  1437                               1473                               1515                  1475
 28                                  1467                               1493                               1327                  1429
 29                                  1457                               1400                               1457                  1438
 30                                  1410                               1410                               1467                  1429
 31                                  1436                               1498                               1530                  1488

 Mean 
 ALL                                 1399                               1426                               1450                  1425
 QUIET                                                                                                                               
 DIST.                                                                                                                               
