Table 1.
Area changes at Jamtalferner for the period 1864–2018, with annual area losses and lowest glacier altitudes in the periods from direct measurements and calculated from the shapes (GIS). *… no DEM of the glacier bed is available.
| Year | Interval (in years) to previous measurement | Area | Annual area loss | Lowest glacier altitude | ||
|---|---|---|---|---|---|---|
| years | km² | % of LIA maximum | km²/y | %/y | m a.s.l. | |
| 1864 | 6.041 | ### | 2120 | |||
| 1895 | 31 | 5.252 | 86.9 | −0.025 | −0.4 | 2175 |
| 1898 | 3 | 5.247 | 86.9 | −0.002 | 0.0 | 2178 |
| 1904 | 6 | 5.208 | 86.2 | −0.006 | −0.1 | 2202 |
| 1909 | 5 | 5.174 | 85.6 | −0.007 | −0.1 | 2236 |
| 1921 | 12 | 5.136 | 85.0 | −0.003 | −0.1 | 2236 |
| 1954 | 33 | 4.531 | 75.0 | −0.018 | −0.3 | 2262 |
| 1969 | 15 | 4.141 | 68.6 | −0.026 | −0.4 | 2397 |
| 1970 | 1 | 4.115 | 68.1 | −0.026 | −0.4 | 2398 |
| 1995 | 25 | 3.896 | 64.5 | −0.009 | −0.1 | 2403 |
| 1996 | 1 | 3.808 | 63.0 | −0.088 | −1.5 | 2403 |
| 2002 | 6 | 3.682 | 61.0 | −0.021 | −0.3 | 2404 |
| 2006 | 4 | 3.571 | 59.1 | −0.028 | −0.5 | 2406 |
| 2009 | 3 | 3.375 | 55.9 | −0.065 | −1.1 | * |
| 2010 | 1 | 3.207 | 53.1 | −0.168 | −2.8 | * |
| 2015 | 5 | 2.818 | 46.6 | −0.078 | −1.3 | * |
| Total | 151 | |||||