Definitions beginning with G

Greenland Ice Sheet Project 2, the second phase of an effort by a group of scientists to produce long records of climate by drilling at the summit of the Greenland Ice Sheet from the surface to bedrock.
NCDC National Climatic Data Center - Cite This Source - This Definition
Browse Related Terms: Borehole, calving, Floe, Heinrich Events, Ice, Ice Core, Ice patrol ship, ice sheet, ice sheet margin, ice streams, Laurentide ice sheet, Vostok

A type of tumor that usually begins in cells in the wall of the gastrointestinal tract. It can be benign or malignant. Also called gastrointestinal stromal tumor.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: fibroadenoma, fibroid, gastrointestinal stromal tumor, leiomyoma, Nodule, tubulovillous adenoma, villous adenoma

The return of identity from the emulated filer to the failed filer, resulting in a return to normal operation. The reverse of takeover.
NetApp - Cite This Source - This Definition
Browse Related Terms: emulated filer, failed filer, normal mode, partner, partner mode, takeover, takeover filer, takeover mode, takeover partner

A reduction in lap times caused by tires.
Sports Illustrated - Cite This Source - This Definition
Browse Related Terms: lap, Lapped traffic, Lead lap

a time interval characterized by widespread glacial ice, see also "Ice Age".
NCDC National Climatic Data Center - Cite This Source - This Definition
Browse Related Terms: chronology, Ice Age, interglacial, visual stratigraphy

Lines carved into rock by overriding ice, showing the direction of glacial movement.

Bureau of Reclamation - Cite This Source - This Definition
Browse Related Terms: amplification, Erosion, Erratic, Glacial moraine, Striation

Material deposited by glaciation, usually composed of a wide range of particle sizes, which has not been subjected to the sorting action of water.

Bureau of Reclamation - Cite This Source - This Definition
Browse Related Terms: Alluvial, Alluvium, Bed load, Bed material, Bed-material discharge, Varved, Wash load

The transformation of cloud particles from water drops to ice crystals. Thus, a cumulonimbus cloud is said to have a "glaciated" upper portion.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: CLD, Cloud, Cloud Condensation Nuclei, Coalescence, Drop-size Distribution, VMD

river of ice that under pressure can deform and flow plastically.
NCDC National Climatic Data Center - Cite This Source - This Definition
A multi-year surplus accumulation of snowfall in excess of snowmelt on land and resulting in a mass of ice at least 0.1 km2 in area that shows some evidence of movement in response to gravity. A glacier may terminate on land or in water. Glacier ice is the largest reservoir of fresh water on Earth, and second only to the oceans as the largest reservoir of total water. Glaciers are found on every continent except Australia.
EPA - Cite This Source - This Definition
Browse Related Terms: ablation, Arctic mist, Cryosphere, Drift of ice, Drifting stations, Fusion, ice rafted detritus, loess