A glacier’s surface elevation decreases linearly from 1,200 meters to 900 meters over 10 years. What is the average annual rate of descent?

Wed, 06 May 2026 01:36:41 +0000

Title: Analyzing Linear Glacier Surface Elevation Change: A 10-Year Descent from 1,200m to 900m When studying glacial dynamics, one key metric—surface elevation change over time—offers critical insight into climate impacts and environmental change. Consider a glacier whose surface elevation drops linearly from 1,200 meters to 900 meters across a 10-year period. Understanding the average annual rate of descent helps scientists, policymakers, and the public grasp the pace of glacial retreat. ### The Linear Descent Pattern The elevation begins at 1,200 meters and decreases steadily to 900 meters over 10 years. This straight-line decline reflects a consistent annual reduction in height, making it a prime example of linear change. Geospatial and glaciological studies often model such changes using basic mathematics to estimate trends and project future behavior.