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Temperate ice layer found in the upper area of Jima Yangzong Glacier, the headstream of Yarlung Zangbo River.
- Source :
-
Science Bulletin . Apr2016, Vol. 61 Issue 8, p619-621. 3p. - Publication Year :
- 2016
-
Abstract
- For the first time we investigate the basal thermal condition in the upper area of Jima Yangzong Glacier, the headstream of Yarlung Zangbo River, using ground-penetrating radar techniques. With common offset and common mid-point surveys we analyze the radar velocities in ice with respect to cold-temperate ice transition surface (0.1751 ± 0.0028 m ns) and ice-bedrock interface (0.1657 ± 0.0033 m ns), indicating a radar velocity of 0.1410 ± 0.0154 m ns for the temperate ice layer (16.6 ± 1.8 m). We estimate that the temperate ice layer has a water content of around 6 % ± 4 %, suggesting that the Jima Yangzong Glacier, previously known as continental-type, now possibly becomes polythermal. [ABSTRACT FROM AUTHOR]
- Subjects :
- *GLACIERS
*GROUND penetrating radar
*RIVERS
Subjects
Details
- Language :
- English
- ISSN :
- 20959273
- Volume :
- 61
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Science Bulletin
- Publication Type :
- Academic Journal
- Accession number :
- 132066613
- Full Text :
- https://doi.org/10.1007/s11434-016-1045-7