File:The Antarctic Ice Sheet's Changing Height.jpg

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Summary

Description
English: This map of Antarctica shows the changes in the elevation of the Antarctic ice sheet from 1985 through 2021. The map is part of a study, published in Earth System Science Data, conducted by researchers at NASA's Jet Propulsion Laboratory in Southern California.

Ice height diminishes (shown in red) as the ice sheet melts by contact with ocean water; ice height rises (shown in blue) where accumulation exceeds ice loss. Ice shelves are shown in gray.

The Pine Island and Thwaites glaciers in West Antarctica (the dark red spots on the left side of the map) are the largest areas of rapid ice loss. The stagnant Kamb Ice Stream (the dark blue area at middle-left) is the only major site of rapid accumulation as ice continues to push in from the interior but no longer flows out to an ice shelf.

The image summarizes a new data set of monthly high-resolution "snapshots" of ice change. The satellite altimetry missions that supplied data for the study are listed in the timeline at the bottom of the image: Geosat (U.S. Navy), ERS-1 and ERS-2 (ESA, or European Space Agency), Envisat (ESA), ICESat-1 (NASA), Cryosat-2 (ESA), and ICESat-2 (NASA).
Date
Source https://images.nasa.gov/details/PIA24990
Author NASA/JPL-Caltech

Licensing

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
Warnings:

Captions

A map of Antarctica showing the changes in the elevation of the Antarctic ice sheet from 1985 through 2021.

Items portrayed in this file

depicts

10 August 2022

image/jpeg

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Date/TimeThumbnailDimensionsUserComment
current21:58, 28 March 2024Thumbnail for version as of 21:58, 28 March 20241,071 × 1,280 (149 KB)JuuyuauUploaded a work by NASA/JPL-Caltech from https://images.nasa.gov/details/PIA24990 with UploadWizard
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