# Western Estonia 238 Year June Precipitation Reconstruction #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/22891 # Description: NOAA Landing Page # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/estonia/estonia2017precip.txt # Description: NOAA location of the template # # Original_Source_URL: # Description: # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Climate Reconstructions # # Dataset DOI: # # Parameter_Keywords: precipitation #-------------------- # Contribution_Date # Date: 2017-10-13 #-------------------- # File_Last_Modified_Date # Date: 2017-10-13 #-------------------- # Title # Study_Name: Western Estonia 238 Year June Precipitation Reconstruction #-------------------- # Investigators # Investigators: Helama, S.; Sohar, K.; Läänelaid, A.; Bijak, S.; Jaagus, J. #-------------------- # Description_Notes_and_Keywords # Description: A continuous 238-year long June precipitation reconstruction has been developed from oak (QURO) and spruce (PCAB) # ring-width chronologies comprising living and historical tree-ring samples for western Estonia (59.5-58.0N, 22.0-25.0E). # Data include precipitation values (mm) with 95% and 99% confidence intervals. #-------------------- # Publication # Authors: Samuli Helama, Kristina Sohar, Alar Läänelaid, Szymon Bijak, and Jaak Jaagus # Published_Date_or_Year: 2017-08-23 # Published_Title: Reconstruction of precipitation variability in Estonia since the 18th century, inferred from oak and spruce tree rings # Journal_Name: Climate Dynamics # Volume: # Edition: # Issue: # Pages: 1-19 # Report_Number: # DOI: 10.1007/s00382-017-3862-z # Online_Resource: https://link.springer.com/article/10.1007%2Fs00382-017-3862-z # Full_Citation: # Abstract: There is plenty of evidence for intensification of the global hydrological cycle. In Europe, the northern areas are predicted to receive more precipitation in the future and observational evidence suggests a parallel trend over the past decades. As a consequence, it would be essential to place the recent trend in precipitation in the context of proxy-based estimates of reconstructed precipitation variability over the past centuries. Tree rings are frequently used as proxy data for palaeoclimate reconstructions. Here we use deciduous (Quercus robur) and coniferous (Picea abies) tree-ring width chronologies from western Estonia to deduce past early-summer (June) precipitation variability since 1771. Statistical model transforming our tree-ring data into estimates of precipitation sums explains 42% of the variance in instrumental variability. Comparisons with products of gridded reconstructions of soil moisture and summer precipitation illustrate robust correlations with soil moisture (Palmer Drought Severity Index), but lowered correlation with summer precipitation estimates prior to mid-nineteenth century, these instabilities possibly reflecting the general uncertainties inherent to early meteorological and proxy data. Reconstructed precipitation variability was negatively correlated to the teleconnection indices of the North Atlantic Oscillation and the Scandinavia pattern, on annual to decadal and longer scales. These relationships demonstrate the positive precipitation anomalies to result from increase in zonal inflow and cyclonic activity, the negative anomalies being linked with the high pressure conditions enhanced during the atmospheric blocking episodes. Recently, the instrumental data have demonstrated a remarkable increase in summer (June) precipitation in the study region. Our tree-ring based reconstruction reproduces this trend in the context of precipitation history since eighteenth century and quantifies the unprecedented abundance of June precipitation over the recent years. #--------------------- # Funding_Agency # Funding_Agency_Name: Academy of Finland # Grant: 288267 #--------------------- # Funding_Agency_Name: Estonian Research Council # Grant: IUT2-16 #-------------------- # Site_Information # Site_Name: Western Estonia # Location: Europe>Northern Europe>Estonia # Country: Estonia # Northernmost_Latitude: 59.5 # Southernmost_Latitude: 58.0 # Easternmost_Longitude: 25.0 # Westernmost_Longitude: 22.0 # Elevation: #------------------ # Data_Collection # Collection_Name: Estonia2017precip # Earliest_Year: 1771 # Most_Recent_Year: 2008 # Time_Unit: CE # Core_Length: # Notes: #------------------ # Chronology_Information # Chronology: Tree-ring dating # #---------------- # Variables # # Data variables follow are preceded by "##" in columns one and two. # Data line variables format: one per line, shortname-tab-variable components (what, material, error, units, seasonality, data type,detail, method, C or N for Character or Numeric data, free text) # ## age_CE age, , , CE, , , , ,N, ## precip precipitation, , , mm, Jun, climate reconstructions, ,,N, ## precip95- precipitation, , 95% confidence interval lower bound, mm, Jun, climate reconstructions, ,,N, ## precip95+ precipitation, , 95% confidence interval upper bound, mm, Jun, climate reconstructions, ,,N, ## precip99- precipitation, , 99% confidence interval lower bound, mm, Jun, climate reconstructions, ,,N, ## precip99+ precipitation, , 99% confidence interval upper bound, mm, Jun, climate reconstructions, ,,N, # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: # age_CE precip precip95- precip95+ precip99- precip99+ 1771 26.7 19.4 33.9 17.3 35.9 1772 35.3 29.8 40.7 28.2 42.2 1773 39.5 34.8 44.3 33.4 45.5 1774 21.9 13.6 30.3 11.1 32.4 1775 25.9 18.4 33.3 16.3 35.3 1776 27.7 20.6 34.7 18.6 36.6 1777 65.0 60.0 70.0 58.5 71.4 1778 77.1 69.7 84.4 67.5 86.5 1779 63.7 58.9 68.4 57.5 69.9 1780 38.5 33.6 43.4 32.2 44.7 1781 43.1 38.9 47.3 37.7 48.5 1782 39.5 34.8 44.3 33.4 45.5 1783 53.4 49.7 57.0 48.7 58.2 1784 38.2 33.2 43.2 31.8 44.5 1785 40.7 36.2 45.3 34.8 46.5 1786 37.2 32.0 42.3 30.6 43.7 1787 32.5 26.5 38.5 24.8 40.2 1788 36.5 31.2 41.7 29.8 43.2 1789 24.3 16.6 32.1 14.2 34.2 1790 16.6 7.0 26.2 4.2 28.7 1791 28.9 22.1 35.6 20.1 37.4 1792 29.2 22.5 35.9 20.6 37.7 1793 57.6 53.6 61.4 52.4 62.7 1794 32.9 26.9 38.8 25.3 40.5 1795 41.4 36.9 45.8 35.6 47.0 1796 54.3 50.6 57.9 49.5 59.2 1797 57.2 53.3 61.0 52.1 62.4 1798 56.2 52.4 59.9 51.2 61.3 1799 55.0 51.2 58.6 50.0 59.9 1800 46.9 43.1 50.7 42.1 51.8 1801 62.6 58.0 67.2 56.6 68.6 1802 53.3 49.7 56.9 48.6 58.2 1803 32.9 26.9 38.8 25.2 40.5 1804 40.6 36.0 45.2 34.7 46.4 1805 33.4 27.5 39.2 25.9 40.9 1806 34.3 28.5 39.9 26.9 41.5 1807 38.0 33.0 43.0 31.6 44.3 1808 29.4 22.7 36.0 20.8 37.8 1809 30.1 23.5 36.6 21.7 38.4 1810 32.4 26.3 38.4 24.6 40.1 1811 42.6 38.3 46.9 37.1 48.1 1812 37.4 32.4 42.5 31.0 43.9 1813 42.6 38.4 46.9 37.2 48.1 1814 37.4 32.3 42.5 30.9 43.8 1815 35.8 30.4 41.2 28.9 42.7 1816 32.0 25.9 38.1 24.1 39.9 1817 50.3 46.7 53.9 45.6 55.0 1818 35.3 29.8 40.8 28.3 42.3 1819 44.6 40.6 48.6 39.5 49.8 1820 37.8 32.8 42.8 31.3 44.2 1821 49.6 46.0 53.2 44.9 54.3 1822 53.7 50.0 57.3 48.9 58.6 1823 72.9 66.4 79.3 64.4 81.1 1824 65.7 60.6 70.8 59.1 72.3 1825 71.5 65.3 77.7 63.4 79.3 1826 36.5 31.2 41.7 29.8 43.2 1827 19.4 10.5 28.3 7.8 30.6 1828 52.3 48.7 55.9 47.6 57.0 1829 41.1 36.6 45.5 35.3 46.7 1830 38.2 33.3 43.2 31.9 44.5 1831 33.5 27.6 39.2 26.0 40.9 1832 30.7 24.3 37.1 22.5 38.8 1833 46.3 42.4 50.1 41.4 51.2 1834 29.8 23.2 36.4 21.3 38.1 1835 19.1 10.2 28.2 7.5 30.5 1836 31.0 24.7 37.4 22.9 39.1 1837 38.4 33.5 43.4 32.1 44.7 1838 39.4 34.7 44.2 33.3 45.5 1839 57.5 53.6 61.4 52.4 62.7 1840 57.3 53.3 61.1 52.1 62.4 1841 65.2 60.1 70.2 58.7 71.6 1842 65.9 60.7 71.0 59.2 72.5 1843 46.2 42.4 50.0 41.3 51.1 1844 47.4 43.6 51.0 42.6 52.2 1845 36.5 31.2 41.7 29.7 43.2 1846 41.6 37.2 46.0 35.9 47.2 1847 22.0 13.7 30.4 11.2 32.5 1848 24.8 17.2 32.5 14.9 34.6 1849 55.5 51.7 59.1 50.5 60.5 1850 51.1 47.5 54.7 46.4 55.7 1851 52.1 48.4 55.6 47.3 56.8 1852 49.5 45.8 53.0 44.8 54.1 1853 36.0 30.6 41.3 29.1 42.8 1854 40.4 35.9 45.0 34.5 46.3 1855 20.0 11.2 28.8 8.6 31.1 1856 31.6 25.4 37.8 23.6 39.6 1857 27.7 20.7 34.7 18.6 36.6 1858 19.4 10.5 28.4 7.9 30.6 1859 37.3 32.1 42.4 30.7 43.7 1860 43.5 39.4 47.6 38.2 48.8 1861 49.8 46.2 53.4 45.1 54.5 1862 57.3 53.4 61.1 52.2 62.5 1863 51.3 47.6 54.8 46.5 55.9 1864 56.9 53.0 60.7 51.8 62.0 1865 61.4 57.0 65.7 55.7 67.1 1866 61.3 56.9 65.6 55.6 67.1 1867 53.5 49.8 57.0 48.7 58.3 1868 40.4 35.8 45.0 34.4 46.2 1869 23.1 15.1 31.2 12.7 33.3 1870 35.7 30.3 41.1 28.8 42.6 1871 39.2 34.4 44.0 33.1 45.3 1872 38.9 34.1 43.8 32.7 45.1 1873 42.7 38.5 47.0 37.3 48.2 1874 43.2 39.1 47.4 37.8 48.6 1875 33.0 27.0 38.9 25.4 40.6 1876 38.2 33.3 43.2 31.9 44.5 1877 44.5 40.4 48.4 39.3 49.7 1878 45.5 41.6 49.4 40.5 50.6 1879 52.9 49.2 56.4 48.1 57.6 1880 46.5 42.6 50.2 41.5 51.4 1881 27.2 20.0 34.3 17.9 36.2 1882 49.7 46.1 53.3 45.0 54.4 1883 48.2 44.4 51.8 43.5 52.9 1884 60.9 56.5 65.1 55.2 66.5 1885 36.5 31.2 41.7 29.8 43.2 1886 43.1 38.9 47.3 37.7 48.5 1887 46.7 42.9 50.4 41.8 51.6 1888 40.3 35.7 44.9 34.3 46.1 1889 47.8 44.1 51.5 43.1 52.6 1890 82.3 73.7 90.8 71.0 93.2 1891 56.9 53.0 60.7 51.8 62.0 1892 56.9 53.0 60.7 51.8 62.0 1893 43.5 39.4 47.6 38.1 48.8 1894 51.4 47.8 55.0 46.7 56.1 1895 40.7 36.1 45.2 34.8 46.4 1896 48.6 44.9 52.2 43.9 53.3 1897 56.9 53.0 60.7 51.8 62.1 1898 68.5 62.9 74.1 61.2 75.6 1899 43.7 39.5 47.7 38.3 49.0 1900 39.5 34.8 44.3 33.5 45.6 1901 35.0 29.5 40.6 27.9 42.1 1902 36.4 31.2 41.7 29.7 43.1 1903 59.6 55.4 63.6 54.1 65.0 1904 45.2 41.2 49.1 40.1 50.3 1905 47.3 43.5 51.0 42.5 52.1 1906 45.2 41.2 49.1 40.1 50.2 1907 49.7 46.1 53.3 45.0 54.4 1908 49.7 46.0 53.2 45.0 54.3 1909 45.0 41.0 48.9 39.9 50.1 1910 54.0 50.3 57.6 49.2 58.9 1911 54.9 51.2 58.5 50.0 59.8 1912 55.1 51.4 58.7 50.2 60.1 1913 46.4 42.6 50.2 41.5 51.3 1914 28.4 21.5 35.2 19.4 37.1 1915 41.4 37.0 45.8 35.7 47.0 1916 60.9 56.6 65.2 55.3 66.6 1917 42.9 38.6 47.1 37.4 48.3 1918 40.0 35.4 44.7 34.0 45.9 1919 60.8 56.5 65.0 55.2 66.4 1920 51.0 47.4 54.6 46.3 55.7 1921 49.2 45.6 52.8 44.5 53.9 1922 78.2 70.5 85.7 68.2 87.9 1923 72.7 66.3 79.1 64.3 80.8 1924 69.8 64.0 75.7 62.2 77.2 1925 63.2 58.5 67.9 57.1 69.3 1926 37.0 31.8 42.1 30.3 43.5 1927 38.4 33.5 43.4 32.1 44.7 1928 35.2 29.7 40.7 28.1 42.2 1929 51.7 48.1 55.2 46.9 56.4 1930 40.9 36.4 45.4 35.1 46.6 1931 27.0 19.8 34.1 17.7 36.1 1932 28.6 21.8 35.4 19.7 37.2 1933 25.8 18.4 33.2 16.2 35.3 1934 34.7 29.1 40.3 27.6 41.9 1935 35.3 29.8 40.7 28.2 42.2 1936 46.1 42.3 49.9 41.2 51.1 1937 56.9 53.0 60.6 51.7 62.0 1938 54.4 50.7 58.0 49.6 59.3 1939 30.4 23.9 36.8 22.0 38.6 1940 27.0 19.8 34.2 17.7 36.1 1941 30.1 23.5 36.6 21.6 38.3 1942 47.8 44.0 51.4 43.0 52.6 1943 54.6 50.9 58.2 49.7 59.4 1944 52.8 49.2 56.4 48.1 57.6 1945 63.4 58.6 68.0 57.2 69.4 1946 62.8 58.2 67.4 56.8 68.8 1947 55.2 51.4 58.8 50.2 60.1 1948 60.4 56.1 64.5 54.8 65.9 1949 67.5 62.0 72.9 60.4 74.4 1950 49.4 45.8 53.0 44.7 54.1 1951 45.1 41.1 49.0 40.0 50.2 1952 52.0 48.4 55.5 47.2 56.7 1953 58.3 54.2 62.2 53.0 63.6 1954 57.4 53.4 61.2 52.2 62.5 1955 35.2 29.7 40.7 28.2 42.2 1956 33.4 27.6 39.2 26.0 40.9 1957 58.6 54.5 62.5 53.3 63.9 1958 44.9 40.9 48.8 39.7 50.0 1959 52.6 48.9 56.1 47.9 57.3 1960 50.5 46.9 54.1 45.8 55.2 1961 66.4 61.1 71.6 59.6 73.1 1962 62.5 57.9 67.0 56.5 68.4 1963 49.2 45.6 52.8 44.5 53.9 1964 39.6 34.9 44.3 33.5 45.6 1965 53.9 50.2 57.5 49.1 58.8 1966 41.4 37.0 45.9 35.7 47.0 1967 34.3 28.5 39.9 26.9 41.5 1968 46.0 42.1 49.8 41.0 50.9 1969 32.6 26.6 38.6 24.9 40.3 1970 35.1 29.5 40.6 28.0 42.1 1971 48.2 44.5 51.9 43.5 53.0 1972 54.9 51.1 58.5 49.9 59.7 1973 38.1 33.2 43.1 31.8 44.5 1974 57.4 53.5 61.2 52.2 62.6 1975 48.6 44.9 52.2 43.9 53.3 1976 54.3 50.6 57.9 49.5 59.2 1977 50.2 46.5 53.7 45.5 54.8 1978 59.7 55.5 63.8 54.3 65.2 1979 57.8 53.9 61.7 52.6 63.0 1980 81.2 72.9 89.4 70.2 91.8 1981 88.4 78.4 98.2 75.1 101.1 1982 66.5 61.2 71.7 59.6 73.2 1983 59.5 55.3 63.6 54.1 65.0 1984 51.9 48.3 55.5 47.2 56.6 1985 47.0 43.2 50.7 42.2 51.9 1986 49.6 46.0 53.2 44.9 54.3 1987 62.5 57.9 67.0 56.5 68.4 1988 48.2 44.5 51.9 43.5 53.0 1989 31.0 24.6 37.3 22.8 39.0 1990 25.9 18.5 33.3 16.4 35.4 1991 43.8 39.7 47.8 38.5 49.1 1992 23.4 15.5 31.4 13.0 33.5 1993 47.9 44.2 51.6 43.2 52.7 1994 59.8 55.6 63.9 54.4 65.3 1995 62.9 58.2 67.5 56.8 68.9 1996 53.3 49.6 56.8 48.5 58.1 1997 52.2 48.6 55.7 47.4 56.9 1998 49.1 45.4 52.7 44.4 53.8 1999 58.3 54.2 62.2 53.0 63.6 2000 55.3 51.5 58.9 50.3 60.2 2001 72.0 65.6 78.2 63.8 79.9 2002 78.7 70.9 86.3 68.5 88.5 2003 59.3 55.1 63.3 53.9 64.7 2004 87.9 78.0 97.7 74.9 100.6 2005 71.3 65.1 77.5 63.3 79.1 2006 46.6 42.8 50.4 41.7 51.5 2007 72.1 65.8 78.4 63.9 80.1 2008 76.8 69.5 84.1 67.3 86.1