Icebergs | NASA Earthdata
Nov 20, 2025 · NASA's iceberg data includes current and historical measurements useful for mapping icebergs, glaciers that calve them, and their characteristics.
Glacier Power: What is Glacial Calving? - NASA Earthdata
Nov 21, 2025 · Glacier Power: What is Glacial Calving? When a piece of a glacier breaks off, it's called calving, and results in an iceberg.
Iceberg A23a in the Southern Ocean, Antarctica - Earthdata
Feb 27, 2024 · Iceberg A23a calved from the Filchner–Ronne Ice Shelf (on the northwestern side of Antarctica) in 1986 and had been stuck in the Weddell Sea off the coast of West Antarctica …
Iceberg A23A Grounded Near South Georgia Island - Earthdata
Mar 4, 2025 · Iceberg A23A was captured in this false-color corrected reflectance (Bands 7-2-1) image from the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua …
Iceberg A23A Sheds a Piece - NASA Earthdata
May 3, 2025 · Iceberg A23A, which grounded in early March, is the rectangular feature in the center of the image. Iceberg A23C, which broke off in mid-April, can be seen on the right side …
Iceberg A23A Moving Toward South Georgia Island, Antarctica
Jan 14, 2025 · NASA's true-color corrected reflectance image of a very large iceberg A23A moving toward South Georgia Island in Antarctica was captured by the MODIS instrument …
Glacier Power: Teacher's Guide for Segment Review Questions
Nov 21, 2025 · Find answers to segment review questions included in Glacier Power chapters.
Glacier Power: What is Glacier Anatomy? | NASA Earthdata
Nov 14, 2025 · The accumulation (input) zone is where a glacier gains snow and ice through snowfall and compression. Ice begins to flow like a conveyor belt, driven by gravity and ever …
Glacier Power: How do Glaciers Form? | NASA Earthdata
Nov 21, 2025 · From Snowflakes to Rivers of Ice Glaciers are massive and incredibly powerful, but they begin with small snowflakes. Imagine how many snowflakes make a glacier as snow …
Glacier Power: Why is Glacier Ice Blue? - NASA Earthdata
Nov 21, 2025 · Glacial ice is a different color from regular ice. It is so blue because the dense ice of the glacier absorbs every other color of the spectrum except blue — so blue is what we see!