# tlohde

#glacier

A topographical map showing the Rembesdalskåka outlet glacier of Hardangerjøkulen ice cap in Norway. Elevation is depicted by gray contours and a colour ramp from dark blue (low) to white (high). Within Hardangerjøkulen, a dashed line denotes the extent of Rembesdalskåka. Across which are several black lines, each one with a year label (from lowest elevation to highest: 1989, 1993, 2000, 1973, 2017, 1991, 1985, 2019, 1966). Around the edge of the ice cap several mountain peaks are labelled. A scale bar in the top right indicates that the whole map is ~20 km across. Several lakes are shown in a dark blue. The title / legend in the bottom left reads: 'Rembesdalskåka Equilibrium Line'. Credits along the bottom read: 'by:tlohde / Copernicus Global DEM (ESA) / Raup et al., (2007) The GLIMS Geospatial Glacier Database / Fluctuations of Glaciers Database, World Glacier Monitoring Service / OpenStreetMap contributors'
A map showing the bathymetry and sub-glacial topography across West Greenland. The topography is on a black to dark blue to light blue color ramp. Contours are drawn and 250 m intervals. There are many fjords and islands. Several fjords have regions where the depth is 1000+ m. There is a subtle hill-shade layer on top of the terrain. There are ~30 glaciers marked as small orange crosses, with their names written along side. The names are in Greenlandic, for example: Nunaarsussuup Oqquatungaani Sermikassak, Tassartooq, Sermikassak, Umiammakku Sermiat, Nakkala, and Kangilleq. The map is titled: 'Glaciers of West Kalaallit Nunaat (Greenland)' with the following text below: 'Changes to the Greenlandic language coupled with a history of exploration has led to many glaciers having multiple names. Greenlandic names are typically descriptive, whereas names given during expeditions are often say more about those on the expedition. For example, Rink Isbræ was named in honour of Hinrich Johannes Rink (Isbræ meaning glacier in Danish). Its Greenlandic name: Kangilliup Sermia, can be approximately translated to mean: The Eastern Ice.' In the bottom left the data sources are credited: 'Greenlandic Glacier Names by Bjørk, Anders; Kruse, Lisathe; Michaelsen, Peter (2015). https://doi.org/10.6084/m9.figshare.1449148.v2 & BedMachine Greenland by Morlighem, M. et al. (2022). https://doi.org/10.5067/GMEVBWFLWA7X. Date Accessed 24-11-2025.' & in the bottom right it reads : 'by:tlohde'
A simple black and white map with very few features. A single line of longitude at 52°30′ W and one line of latitude at 72°0′ N cross the image. Just north east of their intersection is the text: 'The marine-terminating Salliarutsip Sermia retreated 12 km between 2000 and 2025'. This text is written over two lines; is aligned south-west to north-east and has a gentle curve to it. At either end of the text are two thick black lines, each slightly curved and jagged, representing the terminus positions of the glacier. The credits in the bottom left read: 'by:tlohde / terminus positions digitized from Landsat 7 & 8 acquisitions on 26/8/2000 and 23/8/2025'
A map titled: Barnes Ice Cap, Baffin Island, Nunavut, Canada. The map is comprised of a Sentinel-2 RGB image satellite image showing the ice cap which is up to 60 km across and in excess of 100 km long. Surrounding the ice cap are mountains, some with snow covered peaks, others rocky, along with many bright blue lakes. Overlaid on top of the ice cap are flow lines indicating the direction of ice flow, and colored according to the speed of flow. The lines clearly show the ice divide in the middle of the ice cap. The color of the flow lines is on a logarithmic scale from 0 to 100 m/yr, as shown in the color-bar beneath the main plot. In the upper left is an inset showing where Baffin Island's position to the west of Greenland, and above the north eastern limit of North America. Image credits in the bottom left read: 'by:tlohde / (C) contains modified Copernicus Sentinel-2 data / NASA MEaSURE's ITS_LIVE (Gardner et al., 2025)'
A satellite image showing a few outlet glaciers in west Greenland. Two are labelled: In orange: Kangaasarssup Sermia (KS) and in blue Isortuarsuup Sermia (IS). An inset shows a close up of the terminus of IS where ice bergs can be seen in the lake.
Three subplots, the two on the left cover the same extent, and the one on the right shows a smaller area contained within. The top left shows change in ice veloicty (green=faster, pink=slower). There is no pink, and the intensity of green increases towards the glacier. In the lower left the rate of surface elevation change is shown where red=thinning, blue=thickening; much of the glacier has thinned with the greatest thinning near the terminus. Two water bodies indicate some increases in elevation, however dh/dt values over water are not to be trusted. On the right, a close up satellite image of a glacier terminus with multiple terminus traces shown for a 6 year 2014-2020 period. Some terminus retreat is visible at the northern end of the glacier, near some grounded icebergs
A topographic map showing contour lines, peaks, glaciers and lakes in the McMurdo Dry Valley region of Antarctica
A satellite image from Brúarjökull in Iceland, with squiggly lines in alternating black and white
map of north western Hardangerjøkulen, Norway. The map is in black and white, and has been made to look like it was photocopied.