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Related Experiment Video

Updated: Jul 10, 2026

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

Published on: September 12, 2017

Changes in Greenland ice sheet elevation attributed primarily to snow accumulation variability

McConnell¹, Arthern, Mosley-Thompson

¹Desert Research Institute, University & Community College System of Nevada, Reno 89512, USA. jmcconn@dri.edu

|September 6, 2000

Summary

This summary is machine-generated.

Greenland ice sheet elevation changes from 1978-88 were driven by snow accumulation variability, not exceeding natural climate fluctuations. Long-term monitoring of ice sheet elevation and snow accumulation is crucial for understanding mass changes.

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Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

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Area of Science:

Glaciology
Climate Science
Earth System Science

Background:

Ice sheet response to climate change significantly impacts future sea-level rise.
Satellite data reveal spatial variability in Greenland's ice sheet elevation, but geophysical processes remain unclear.
Distinguishing recent ice sheet changes from natural variability is essential.

Purpose of the Study:

To determine ice sheet elevation changes in southern Greenland between 1978-88.
To identify the geophysical processes responsible for observed elevation changes.
To assess if recent changes fall within Greenland's natural climate variability.

Main Methods:

Utilized a physically based model of firn densification.
Reconstructed annual snow accumulation using data from 12 high-elevation ice cores.
Compared modeled elevation changes with contemporaneous satellite measurements.

Main Results:

Modeled accumulation-driven elevation changes closely matched satellite observations for 1978-88.
Attributed the observed elevation changes to variations in snow accumulation.
Longer ice core analyses indicated typical variability within natural bounds for the Greenland ice sheet.

Conclusions:

Snow accumulation variability was the primary driver of Greenland ice sheet elevation changes in the 1978-88 decade.
The observed changes were within the long-term natural variability of the ice sheet.
Integrated, long-term measurements of ice sheet surface elevation and snow accumulation are necessary for comprehensive mass balance assessments.