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- Icebergs | NASA Earthdata
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
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
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 until it started moving again in 2020
- Iceberg A23A Grounded Near South Georgia Island - Earthdata
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 platform on March 4, 2025 The iceberg, the big blue object southwest of the island, has run aground near South Georgia Island in Antarctica
- Iceberg A23A Sheds a Piece - NASA Earthdata
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 of the image This before-and-after comparison shows Iceberg A23C breaking off Iceberg A23A between April 11 and April 12 Iceberg A23C is almost 20km in length and 8km in
- Iceberg A23A Moving Toward South Georgia Island, Antarctica
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 aboard the Terra satellite
- Glacier Power: Teachers Guide for Segment Review Questions
Find answers to segment review questions included in Glacier Power chapters
- Glacier Power: What is Glacier Anatomy? | NASA Earthdata
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 mounting snows In the lower region or ablation (output) zone, the glacier loses ice through melting and evaporation Older ice is carried down to greater and greater depth An equilibrium line divides the two areas This spot
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