Swiss glaciers 1850–2100

Findelgletscher

IceIce lost since 1850This glacier

Past extents come from the Swiss Glacier Inventories of 1850, 1931, 1973 and 2016. Future extents are illustrative: each glacier’s projected area (OGGM, median of CMIP6 climate models) is removed from its lowest ice upward. About the scenarios.

Inventory 13.86km² Area in 2016 · ±0% compared with 2016
Area 201613.86km²11th largest
Elevation2,554–3,914mmedian 3,323 m
Length7.5kmfaces north-west
1850 ice body21.9km²now 2 glaciers
Tongue since 1885−3,060m96 measurements
Thinning 1930–2023−35maverage surface lowering
Ice left in 21000%of 2020 volume, SSP2-4.5

Findelgletscher is the 11th-largest glacier in Switzerland, covering 13.86 km² in the canton of Valais. Its ice spans 2,554 to 3,914 m and faces north-west. Its meltwater drains to the Rhône and on to the Mediterranean. In 1850 it was part of a larger ice body of 21.9 km², which has since split into 2 glaciers covering 16.0 km² in 2016 (−27%). Its tongue has been measured 96 times since 1885. In total it has retreated 3,060 m, about 22.0 m a year. Its mass balance has been measured since 2005: on average −0.67 m of water equivalent per year, with the most negative year in 2022 (−3.02 m). Between 1930 and 2023 its surface dropped by 35 m on average. With strong climate protection (SSP1-2.6), about 6% of its 2020 ice would remain in 2100. With very high emissions (SSP5-8.5) it would be gone around 2067. Its meltwater is projected to peak around 2037.

Pictures

In pictures

Findelgletscher in 2008.
Findelgletscher in 2008. Zacharie Grossen · Public domain · Wikimedia Commons
Future

What remains in 2100

SSP1-2.6 · low emissions6%45% left in 2050
SSP2-4.5 · intermediate emissionsGoneIce gone around 2086
SSP3-7.0 · high emissionsGoneIce gone around 2077
SSP5-8.5 · very high emissionsGoneIce gone around 2067
SSP1-2.6SSP2-4.5SSP3-7.0SSP5-8.5
0%25%50%75%100%202020402060208021006%0%0%0%
Ice volume as a share of 2020, median of 14 climate models; shaded: middle two-thirds of models. OGGM v1.6.

Meltwater

Million m³ of water per year, 11-year mean

025507520102030205020702090
Water leaving the glacier area each year: ice melt, snowmelt and rain. It rises while the glacier melts faster, then falls as the ice runs out: “peak water”.
Measured

The record

Length change since 1885

Position of the glacier tongue, measured in the field almost every year. Hover for each measurement.

−4,000 m−3,000 m−2,000 m−1,000 m0 m1,000 m1900192019401960198020002020−3,060 m
GLAMOS Swiss Glacier Length Change, release 2025.

Mass balance 2005–2025

Ice gained (blue) or lost (red) over the whole glacier each year, in metres of water equivalent. Measured with stakes drilled into the ice.

−4.0−3.0−2.0−1.00.01.020052010201520202025
GLAMOS Swiss Glacier Mass Balance, release 2025. Cumulative since 2005: −14.0 m water equivalent.

Thinning since 1930

Average change in surface height, from comparing elevation models made from maps, aerial images and laser scans.

−40 m−30 m−20 m−10 m0 m19401960198020002020−35 m
GLAMOS Swiss Glacier Volume Change, release 2025.
Profile

Facts

Area over time

185021.86 km²193120.09 km²197318.62 km²201613.86 km²2050 · SSP2-4.511.05 km²2100 · SSP2-4.50.16 km²

Past areas are the ice body this glacier belonged to at the time. Projections: OGGM median, SSP2-4.5.

SGI id
B56-03
Canton
Valais
River
Rhône → Mediterranean
Basin
Vispa
Location
45.9900° N, 7.8800° E · swisstopo map
Elevation
2,554–3,914 m, median 3,323 m
Slope, aspect
14°, north-west
Debris cover
0.27 km² (2% of the area)
Inventory image
2015
Ice volume (model)
≈ 1.07 km³ in 2020 (OGGM)
RGI ids
RGI60-11.02773, RGI60-11.02776, RGI60-11.02815, RGI60-11.02825
In 1850 joined with
Adlergletscher
Sources

Sources

  1. Linsbauer et al. (2021). The new Swiss Glacier Inventory SGI2016. Frontiers in Earth Science 9. doi.org/10.3389/feart.2021.704189
  2. Mannerfelt et al. (2022). Halving of Swiss glacier volume since 1931 observed from terrestrial image photogrammetry. The Cryosphere 16. doi.org/10.5194/tc-16-3249-2022
  3. GLAMOS – Glacier Monitoring Switzerland. www.glamos.ch
  4. Zekollari et al. (2024). Twenty-first century global glacier evolution under CMIP6 scenarios and the role of glacier-specific observations. The Cryosphere 18 (OGGM v1.6 projections). tc.copernicus.org/articles/18/5045/2024/

Relief: swisstopo swissALTIRegio. 1850 and 1973 outlines: Maisch et al. (2000), Müller et al. (1976), Paul (2004). Length, mass balance and volume change: GLAMOS releases 2025. All sources and methods.

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