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Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India
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| Zeitschriftentitel: | Journal of Glaciology |
|---|---|
| Personen und Körperschaften: | , |
| In: | Journal of Glaciology, 65, 2019, 249, S. 13-28 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Cambridge University Press (CUP)
|
| Schlagwörter: |
| author_facet |
DAS, SURESH SHARMA, MILAP CHAND DAS, SURESH SHARMA, MILAP CHAND |
|---|---|
| author |
DAS, SURESH SHARMA, MILAP CHAND |
| spellingShingle |
DAS, SURESH SHARMA, MILAP CHAND Journal of Glaciology Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India Earth-Surface Processes |
| author_sort |
das, suresh |
| spelling |
DAS, SURESH SHARMA, MILAP CHAND 0022-1430 1727-5652 Cambridge University Press (CUP) Earth-Surface Processes http://dx.doi.org/10.1017/jog.2018.77 <jats:title>ABSTRACT</jats:title><jats:p>Glacier changes in the Jankar Chhu Watershed (JCW) of Chandrabhaga (Chenab) basin, Lahaul Himalaya were worked out based on Corona and Sentinel 2A images between 1971 and 2016. The JCW consists of 153 glaciers (>0.02 km<jats:sup>2</jats:sup>) with a total area of 185.6 ± 3.8 km<jats:sup>2</jats:sup>that include 82 glaciers with debris-covered ablation zone, comprising 10.9% of the total glacierized area as in 2016. Change analysis based on Corona (1971), Landsat (2000) and Sentinel 2A (2016) was restricted to 127 glaciers owing to the presence of cloud cover on 26 glaciers in 1971. A subset of glaciers was also mapped using Landsat Thematic Mapper (TM; 1989) image. The total glacier area decreased by 14.7 ± 4.3 km<jats:sup>2</jats:sup>(0.3 ± 0.1 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹). The number of glaciers in the JCW increased by four between 1971 and 2016 due to fragmentation. More recently (2000–16), recession rate has increased. Clean-ice area decreased by 21.8 ± 3.8 km<jats:sup>2</jats:sup>(0.5 ± 0.1 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹) while debris-covered ice increased by 7.2 ± 0.4 km<jats:sup>2</jats:sup>(0.2 ± 0.01 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹). Field observations of select glaciers also support derived recession trend in the JCW. Retreat rates in the JCW have been observed to be much lower than previously reported.</jats:p> Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India Journal of Glaciology |
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Cambridge University Press (CUP), 2019 |
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Cambridge University Press (CUP), 2019 |
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Journal of Glaciology |
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| title |
Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| title_unstemmed |
Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| title_full |
Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| title_fullStr |
Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| title_full_unstemmed |
Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| title_short |
Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| title_sort |
glacier changes between 1971 and 2016 in the jankar chhu watershed, lahaul himalaya, india |
| topic |
Earth-Surface Processes |
| url |
http://dx.doi.org/10.1017/jog.2018.77 |
| publishDate |
2019 |
| physical |
13-28 |
| description |
<jats:title>ABSTRACT</jats:title><jats:p>Glacier changes in the Jankar Chhu Watershed (JCW) of Chandrabhaga (Chenab) basin, Lahaul Himalaya were worked out based on Corona and Sentinel 2A images between 1971 and 2016. The JCW consists of 153 glaciers (>0.02 km<jats:sup>2</jats:sup>) with a total area of 185.6 ± 3.8 km<jats:sup>2</jats:sup>that include 82 glaciers with debris-covered ablation zone, comprising 10.9% of the total glacierized area as in 2016. Change analysis based on Corona (1971), Landsat (2000) and Sentinel 2A (2016) was restricted to 127 glaciers owing to the presence of cloud cover on 26 glaciers in 1971. A subset of glaciers was also mapped using Landsat Thematic Mapper (TM; 1989) image. The total glacier area decreased by 14.7 ± 4.3 km<jats:sup>2</jats:sup>(0.3 ± 0.1 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹). The number of glaciers in the JCW increased by four between 1971 and 2016 due to fragmentation. More recently (2000–16), recession rate has increased. Clean-ice area decreased by 21.8 ± 3.8 km<jats:sup>2</jats:sup>(0.5 ± 0.1 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹) while debris-covered ice increased by 7.2 ± 0.4 km<jats:sup>2</jats:sup>(0.2 ± 0.01 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹). Field observations of select glaciers also support derived recession trend in the JCW. Retreat rates in the JCW have been observed to be much lower than previously reported.</jats:p> |
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| description | <jats:title>ABSTRACT</jats:title><jats:p>Glacier changes in the Jankar Chhu Watershed (JCW) of Chandrabhaga (Chenab) basin, Lahaul Himalaya were worked out based on Corona and Sentinel 2A images between 1971 and 2016. The JCW consists of 153 glaciers (>0.02 km<jats:sup>2</jats:sup>) with a total area of 185.6 ± 3.8 km<jats:sup>2</jats:sup>that include 82 glaciers with debris-covered ablation zone, comprising 10.9% of the total glacierized area as in 2016. Change analysis based on Corona (1971), Landsat (2000) and Sentinel 2A (2016) was restricted to 127 glaciers owing to the presence of cloud cover on 26 glaciers in 1971. A subset of glaciers was also mapped using Landsat Thematic Mapper (TM; 1989) image. The total glacier area decreased by 14.7 ± 4.3 km<jats:sup>2</jats:sup>(0.3 ± 0.1 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹). The number of glaciers in the JCW increased by four between 1971 and 2016 due to fragmentation. More recently (2000–16), recession rate has increased. Clean-ice area decreased by 21.8 ± 3.8 km<jats:sup>2</jats:sup>(0.5 ± 0.1 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹) while debris-covered ice increased by 7.2 ± 0.4 km<jats:sup>2</jats:sup>(0.2 ± 0.01 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹). Field observations of select glaciers also support derived recession trend in the JCW. Retreat rates in the JCW have been observed to be much lower than previously reported.</jats:p> |
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| spelling | DAS, SURESH SHARMA, MILAP CHAND 0022-1430 1727-5652 Cambridge University Press (CUP) Earth-Surface Processes http://dx.doi.org/10.1017/jog.2018.77 <jats:title>ABSTRACT</jats:title><jats:p>Glacier changes in the Jankar Chhu Watershed (JCW) of Chandrabhaga (Chenab) basin, Lahaul Himalaya were worked out based on Corona and Sentinel 2A images between 1971 and 2016. The JCW consists of 153 glaciers (>0.02 km<jats:sup>2</jats:sup>) with a total area of 185.6 ± 3.8 km<jats:sup>2</jats:sup>that include 82 glaciers with debris-covered ablation zone, comprising 10.9% of the total glacierized area as in 2016. Change analysis based on Corona (1971), Landsat (2000) and Sentinel 2A (2016) was restricted to 127 glaciers owing to the presence of cloud cover on 26 glaciers in 1971. A subset of glaciers was also mapped using Landsat Thematic Mapper (TM; 1989) image. The total glacier area decreased by 14.7 ± 4.3 km<jats:sup>2</jats:sup>(0.3 ± 0.1 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹). The number of glaciers in the JCW increased by four between 1971 and 2016 due to fragmentation. More recently (2000–16), recession rate has increased. Clean-ice area decreased by 21.8 ± 3.8 km<jats:sup>2</jats:sup>(0.5 ± 0.1 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹) while debris-covered ice increased by 7.2 ± 0.4 km<jats:sup>2</jats:sup>(0.2 ± 0.01 km<jats:sup>2</jats:sup>a<jats:sup>−</jats:sup>¹). Field observations of select glaciers also support derived recession trend in the JCW. Retreat rates in the JCW have been observed to be much lower than previously reported.</jats:p> Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India Journal of Glaciology |
| spellingShingle | DAS, SURESH, SHARMA, MILAP CHAND, Journal of Glaciology, Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India, Earth-Surface Processes |
| title | Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| title_full | Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| title_fullStr | Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| title_full_unstemmed | Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| title_short | Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| title_sort | glacier changes between 1971 and 2016 in the jankar chhu watershed, lahaul himalaya, india |
| title_unstemmed | Glacier changes between 1971 and 2016 in the Jankar Chhu Watershed, Lahaul Himalaya, India |
| topic | Earth-Surface Processes |
| url | http://dx.doi.org/10.1017/jog.2018.77 |