Two PISY collections from Grangärde and Säfsnäs in Dalarna, central Sweden

by Torbjörn Axelson, November 2020
Approximate source areas for Grangärde (red) and Säfsnäs (blue) PISY collections. For details, see the positions on OSM.

During the period 2003-2020 I have don quite a lot dendrochronology in Grangärde and Säfsnäs, Ludvika Municipality, Dalarna. Historical timbers from meny buildings as well as from some living trees have been sampled, in most cases with Haglof increment borers 5.15 mm, usually scanned in 2400 dpi, and than processed with CooRecoorder and CDendro from www.cybis.se. The two locations are less than 40 km apart, but differs in altitude about 200 m in average, and the practical work has shown that two separate reference chronologies often are useful at least for difficult samples. Therefore I now have assambled two new pine (Pinus sylvestris) reference collections out of this material, one representing the lower area around Grangärde and the lakes Väsman and Bysjön (155 m.a.s.l) (60.24, 14.97 (WGS 84)), from living trees or logs from buildings, which I expect being cut in the near surroundings, and therefore rarely from altitudes above 250 m.a.s.l. The other collections is from living trees and logs in buildings from at least 300 m.a.s.l and up to 470 m.a.s.l. within or near the border of Säfsnäs parish (60.14, 14.48 (WGS 84)). The correlations pattern maps below visualize how the Säfsnäs collection generally gives lower corr values towards south east Sweden and slightly better towards central (and northern) Scandinavia, while Grangärde has the opposite tendency. My suggestion is that what is seen is that Säfsnäs collection has a stronger temperature signal (T) and a weaker precipitation signal (P) while Grangärde has a weaker T and a stronger P. The Björbo collection (ITRDB:swed305) (~30 km north has a mean altitude in between) gives a more balanced picture (not shown).

Correlation pattern towards available references with known provinience and overlap of at least 150 years:

Strong red means high corr, white means zero corr. The rings are intended to cover most of the area in which the samples of the chronology are collected. A chronology with big ring is not necessarily stronger than one with a small, just including samples from wider area.
Grangärde, altitude 155-~250 m. with stronger corr towards south east and weaker towards north
Strong red means high corr, white means zero corr. The rings are intended to cover most of the area in which the samples of the chronology are collected. A chronology with big ring is not necessarily stronger than one with a small, just including samples from wider area.
Säfsnäs, altitude ~300-470 m, with stronger correlations towards north and weaker towards south

Origin of the samples in the Grangärde collection

Coordinates for historical timber refers to original location for the buildings incorporated in museial collections (hembygdsgårdar). See the positions on OSM-map.
Sample-id:s starting with:

Origin of samples in Säfsnäs collection

Coordinates for historical timber refers to original location for the buildings incorporated in museial collections.
Sample-id:s starting with:

Mätdata (ringbredder)

visa som tabell
2 1 0.2 0.1 1400 1410 1420 1430 1440 1450 1460 1470 1480 1490 1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600 2 1 0.2 0.1 1610 1620 1630 1640 1650 1660 1670 1680 1690 1700 1710 1720 1730 1740 1750 1760 1770 1780 1790 1800 1810 2 1 0.2 1820 1830 1840 1850 1860 1870 1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020

graPI 1 Grangarde, Dalarna PISY graPI 2 Sweden Scotch pine 190m 6014N1458E 1399 2012 graPI 3 T. Axelson
———— GrK12b, 1410–1515,
———— JutH28a, 1430–1596,
———— JutH27a, 1450–1596,
———— JutbL15a, 1523–1609,
———— JutH21b, 1557–1623,
———— JutH29a, 1412–1626,
———— JutH21a, 1557–1627,
———— 18A2414_, 1547–1657,
———— GrVbS06a, 1600–1674,
———— GrRSsb2a, 1521–1676,
———— GrVbS00a, 1600–1684,
———— GrK15, 1446–1691,
———— GrK12a, 1408–1694,
———— GrK11b, 1528–1695,
———— GHp03a_, 1505–1707,
———— GRHG0a, 1510–1709,
———— Grk21, 1515–1712,
———— Grk26, 1526–1712,
———— GrK11a, 1526–1718,
———— 18B1324, 1467–1721,
———— 18B1329, 1562–1721,
———— 18B1321, 1595–1721,
———— GHp11a, 1399–1722,
———— GHp07a, 1600–1726,
———— GHp10a, 1429–1727,
———— GHp01a, 1482–1728,
———— GHp05a, 1517–1728,
———— GHp06a, 1540–1728,
———— GHp04a, 1542–1728,
———— GHp08a, 1606–1728,
———— hbrNb13, 1578–1733,
———— 18A2423, 1659–1750,
———— 18A2411, 1548–1758,
———— 18A2412, 1556–1759,
———— 18A2410, 1564–1759,
———— 18A2413, 1568–1759,
———— JutS1a, 1607–1780,
———— 18B1327, 1690–1795,
———— JutbL13b, 1736–1822,
———— BrPB10a, 1657–1830,
———— Slln08a1, 1752–1832,
———— JutbL13a, 1737–1836,
———— GrK13b, 1754–1852,
———— GrK13a, 1754–1856,
———— GrFvl05, 1820–1898,
———— GrFvl06, 1837–1898,
———— slln04b, 1703–1913,
———— slln03b, 1864–1943,
———— slln03a, 1838–1945,
———— Slln11a, 1752–1951,
———— Slln11b, 1752–1951,
———— GrEkoT0a, 1846–1977,
———— Slln08b, 1752–1979,
———— slln04a, 1706–1982,
———— slln02a, 1880–1986,
———— slln02b, 1880–1990,
———— Slln08d, 1742–1998,
———— GrEkoT2a, 1842–2010,
———— Slln08c, 1741–2012,
———— Slln09a, 1831–2012,
———— Slln08a3, 1892–2012,
2 1 0.2 0.1 1460 1470 1480 1490 1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600 1610 1620 1630 1640 1650 1660 2 1 0.2 0.1 1670 1680 1690 1700 1710 1720 1730 1740 1750 1760 1770 1780 1790 1800 1810 1820 1830 1840 1850 1860 1870 2 1 0.2 0.1 1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020

SfsPI 1 Safsnas, Dalarna PISY SfsPI 2 Sweden Scotch pine 350m 6009N1428E 1453 2011 SfsPI 3 T. Axelson
———— SfHnB13a, 1539–1631,
———— SfHRM02a, 1521–1676,
———— 20508B05, 1453–1694,
———— SfHRM03a, 1522–1696,
———— SfHRM01a, 1533–1698,
———— SfHRM08a, 1515–1700,
———— SfHRM09a, 1551–1700,
———— SfHnB12a, 1546–1714,
———— 20508A0, 1643–1725,
———— 20508A2, 1656–1725,
———— 20508A3, 1663–1725,
———— GRHE9a, 1537–1726,
———— SfKlS2a_, 1504–1736,
———— SfHKun4a, 1657–1740,
———— 20522A1, 1639–1758,
———— 20522A0, 1640–1758,
———— GRHE2a, 1662–1764,
———— GRHF3a, 1674–1764,
———— 20522B3, 1524–1769,
———— SfKlS0a, 1455–1770,
———— SfKlS1a, 1508–1770,
———— SfKlS3a, 1512–1770,
———— SfBs05a_, 1538–1771,
———— GRHF0a, 1662–1775,
———— 18A1526b, 1709–1776,
———— GRHE1a, 1529–1779,
———— 20522C3a, 1653–1780,
———— 20508D01, 1664–1782,
———— 20508D2, 1666–1782,
———— 20508E01, 1676–1785,
———— 20508E0, 1719–1786,
———— GRHD2a, 1664–1787,
———— SfVbU3a, 1696–1792,
———— SfVbU5a, 1696–1792,
———— SfVbU2a, 1708–1792,
———— GRHE13a, 1716–1797,
———— GRHE7a, 1716–1799,
———— GRHE11a, 1700–1800,
———— GRHC4a, 1657–1811,
———— 20522C1, 1659–1819,
———— 20522C0, 1663–1820,
———— 20508F01, 1727–1822,
———— SfHPBV3a, 1695–1831,
———— 20522B1_, 1686–1833,
———— GRHC2a, 1666–1834,
———— GRHC1a, 1683–1834,
———— GRHC3a, 1706–1834,
———— SfBs02a, 1666–1835,
———— SfBs04a, 1702–1835,
———— SfBs06a, 1730–1835,
———— SfDymA0a, 1695–1838,
———— 18A1520, 1752–1839,
———— SfDymA3a, 1713–1841,
———— SfDymA1a, 1693–1842,
———— SfDymA4a, 1707–1842,
———— SfDymA6a, 1711–1842,
———— SfDymA2a, 1722–1842,
———— 18A1525, 1710–1844,
———— 18A1523, 1709–1845,
———— Llmr06b, 1710–1845,
———— 18A1522, 1717–1845,
———— SfHPBV0a, 1718–1845,
———— SfHPBV4a, 1722–1845,
———— SfDymB0a, 1722–1845,
———— SfHPBV5a, 1695–1846,
———— SfHPBV2a, 1696–1846,
———— SfHPBV7, 1703–1846,
———— SfHPBV6, 1704–1846,
———— SfHnS11a, 1707–1846,
———— SfDymB4a, 1739–1846,
———— SfHrs2, 1694–1848,
———— SfHrs1, 1700–1848,
———— SfHrs0, 1706–1848,
———— 18A1524, 1730–1848,
———— SfHsvs1, 1767–1857,
———— SfHsvs2, 1792–1857,
———— SfVbS4a_, 1747–1865,
———— 18A1521, 1704–1870,
———— SfHnS12a, 1742–1872,
———— Llmr04a, 1707–1887,
———— Llmr05b, 1770–1899,
———— Llmr07b, 1709–1903,
———— Llmr01b, 1758–1920,
———— SfKbS5a, 1880–1942,
———— Llmr02a, 1706–1997,
———— 1950310a, 1901–2001,
———— 1950312, 1896–2002,
———— frgE13a, 1839–2004,
———— frgE13b, 1850–2004,
———— frgE12a, 1851–2004,
———— frgE12b, 1866–2004,
———— frgE11b, 1899–2004,
———— Llmr07a, 1712–2008,
———— Llmr05a, 1775–2008,
———— 1950311b, 1911–2009,
———— 1950311, 1888–2011,