Bas Glacier D` Arolla - Glaciology

Transcript

HYDROLOGIE SALTINA Swiss Glacier Monitoring Network Bas Glacier d’ Arolla Glacier-ID Location Exposition Community Length (1973) Area (1973) : : : : : : 27 604000 // 92200 N Evol´ene (VS) 4.8 km 13.173 km2 Length variation measurements between 1856 and 2016 Length change (m a−1) 0 −500 −20 −40 −1000 −60 −1500 −80 Cumulative length change (m) 0 20 −100 1850 1900 1950 2000 An advance of the glacier is indicated in blue and a retreat in orange (in m a−1 ). The cummulative length change (in m) since the beginning of the measurements is shown with the black curve. Please reference the information and data in this document as: Glaciological reports (1881-2017) ”The Swiss Glaciers”, Yearbooks of the Cryospheric Commission of the Swiss Academy of Sciences (SCNAT) published since 1964 by the Laboratory of Hydraulics, Hydrology and Glaciology (VAW) of ETH Z¨ urich. No 1-136, (http://www.glamos.ch). c VAW/ETHZ & EKK/SCNAT (2017) 1 http://glaciology.ethz.ch/swiss-glaciers/ HYDROLOGIE SALTINA Swiss Glacier Monitoring Network Frontal variations (1856-2016) Period 1856 1886 1887 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 - 1886 1887 1889 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 c VAW/ETHZ & EKK/SCNAT (2017) Length change (m) −600 −26 −25 −1 +5 +9 −2 0 −16 −8 −38 −9 −9 −2 −5 −3 −14 −45 −26 −26 −22 −17 −11 −3 −5 −6 −5 −12 −11 0 −4 0 −6 −4 +24 0 0 −11 Cumulative length change (m) −600 −626 −651 −652 −647 −638 −640 −640 −656 −664 −702 −711 −720 −722 −727 −730 −744 −789 −815 −841 −863 −880 −891 −894 −899 −905 −910 −922 −933 −933 −937 −937 −943 −947 −923 −923 −923 −934 2 http://glaciology.ethz.ch/swiss-glaciers/ 1929 1930 1931 1932 1933 1934 1935 1936 1937 1939 1940 1941 1942 1943 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 - HYDROLOGIE SALTINA Period Swiss Glacier Monitoring Network 1930 1931 1932 1933 1934 1935 1936 1937 1939 1940 1941 1942 1943 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 c VAW/ETHZ & EKK/SCNAT (2017) Length change (m) −2 −4 −11 −10 −6 −4 −4 −10 −26 −19 −3 −22 −21 −37 −16 −23 −17 −3 −24 −18 −25 −6 −5 −34 −13 −24 −10 −21 −13 −9 −6 −7 −10 −29 −8 −2 −2 −2 −3 −1 +4 +7 Cumulative length change (m) −936 −940 −951 −961 −967 −971 −975 −985 −1011 −1030 −1033 −1055 −1076 −1113 −1129 −1152 −1169 −1172 −1196 −1214 −1239 −1245 −1250 −1284 −1297 −1321 −1331 −1352 −1365 −1374 −1380 −1387 −1397 −1426 −1434 −1436 −1438 −1440 −1443 −1444 −1440 −1433 3 http://glaciology.ethz.ch/swiss-glaciers/ 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2009 2010 2011 2012 2013 2014 2015 - HYDROLOGIE SALTINA Period Swiss Glacier Monitoring Network 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2009 2010 2011 2012 2013 2014 2015 2016 c VAW/ETHZ & EKK/SCNAT (2017) Length change (m) +7 +16 +6 +8 +8 +8 +9 +12 +8 +11 +8 +14 +10 +4 −3 −6 −11 −26 −10 −15 −6 −11 −98 −7 −5 −15 −14 −20 −24 −10 −26 −28 −35 −25 −68 −24.7 −38 −14.3 −4.3 −15.1 −16.2 −13.2 Cumulative length change (m) −1426 −1410 −1404 −1396 −1388 −1380 −1371 −1359 −1351 −1340 −1332 −1318 −1308 −1304 −1307 −1313 −1324 −1350 −1360 −1375 −1381 −1392 −1490 −1497 −1502 −1517 −1531 −1551 −1575 −1585 −1611 −1639 −1674 −1699 −1767 −1792 −1830 −1844 −1848 −1863 −1880 −1893 4 http://glaciology.ethz.ch/swiss-glaciers/