Fell behind on the making a map thing. Day 27: #Boundaries
The #EquilibriumLine marks the boundary on a #glacier between the accumulation and ablation zones. It moves up and down from year to year with changes in the climate.
Here are the equilibrium line altitudes (#ELA) for Rembesdalskaaka, an outlet glacier of #Hardangerjøkulen ice cap in #Norway.
Data & Sources:
- ELAs: WGMS (2025): Fluctuations of Glaciers (FoG) Database. World Glacier Monitoring Service (WGMS); Zurich; Switzerland. https://doi.org/10.5904/wgms-fog-2025-02b
- outline of Rembesdalskaaka: The #GLIMS Geospatial Glacier Database (Raup et al., doi:10.1016/j.gloplacha.2006.07.018)
- Elevation*: Copernicus Global DEM (30 m)
- Lakes & peaks: #OpenStreetMap
*since the mid-90s Rembesdalskaaka has thinned at ~0.8 m/yr. I have casually ignored that, and just plotted the contours for the ELA on a modern DEM. So the position of the ELAs here, can't really be relied upon. Sorry.
Put together in #matplotlib with the help of #geopandas, #shapely #osmnx with a little of labelling in #Inkscape. #Typeface is Junction by Caroline Hadilaksono & Tyler Finck (League of Moveable Type)
#30DayMapChallenge #maps #glaciology #iWantToGoToNorway #Finse