Seasonal changes in surface albedo of Himalayan glaciers from MODIS data and links with the annual mass balance

被引:71
作者
Brun, F. [1 ,2 ,3 ]
Dumont, M. [4 ]
Wagnon, P. [1 ,3 ]
Berthier, E. [5 ]
Azam, M. F. [1 ,6 ]
Shea, J. M. [3 ]
Sirguey, P. [7 ]
Rabatel, A. [8 ]
Ramanathan, Al [6 ]
机构
[1] Univ Grenoble Alpes, CNRS, IRD, LTHE,UMR5564, F-38000 Grenoble, France
[2] ENS, Geosci Dept, F-75005 Paris, France
[3] ICIMOD, Kathmandu, Nepal
[4] Meteo France CNRS, CNRM GAME CEN UMR3589, Grenoble, France
[5] Univ Toulouse, LEGOS, CNRS, F-31400 Toulouse, France
[6] Jawaharlal Nehru Univ, Sch Environm Sci, New Delhi 110067, India
[7] Univ Otago, Sch Surveying, Dunedin, New Zealand
[8] Univ Grenoble Alpes, CNRS, LGGE, UMR5183, F-38000 Grenoble, France
关键词
CHHOTA SHIGRI GLACIER; SEA-LEVEL RISE; WESTERN HIMALAYA; NEPAL HIMALAYA; SNOW COVER; ACCURACY ASSESSMENT; HIMACHAL-PRADESH; 20-1ST CENTURY; FRENCH ALPS; CLIMATE;
D O I
10.5194/tc-9-341-2015
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
Few glaciological field data are available on glaciers in the Hindu Kush-Karakoram-Himalayan (HKH) region, and remote sensing data are thus critical for glacier studies in this region. The main objectives of this study are to document, using satellite images, the seasonal changes of surface albedo for two Himalayan glaciers, Chhota Shigri Glacier (Himachal Pradesh, India) and Mera Glacier (Everest region, Nepal), and to reconstruct the annual mass balance of these glaciers based on the albedo data. Albedo is retrieved from Moderate Resolution Imaging Spectroradiometer (MODIS) images, and evaluated using ground based measurements. At both sites, we find high coefficients of determination between annual minimum albedo averaged over the glacier (AMAAG) and glacier-wide annual mass balance (B-a) measured with the glaciological method (R-2 = 0.75). At Chhota Shigri Glacier, the relation between AMAAG found at the end of the ablation season and B-a suggests that AMAAG can be used as a proxy for the maximum snow line altitude or equilibrium line altitude (ELA) on winter-accumulation-type glaciers in the Himalayas. However, for the summer-accumulation-type Mera Glacier, our approach relied on the hypothesis that ELA information is preserved during the monsoon. At Mera Glacier, cloud obscuration and snow accumulation limits the detection of albedo during the monsoon, but snow redistribution and sublimation in the post-monsoon period allows for the calculation of AMAAG. Reconstructed B-a at Chhota Shigri Glacier agrees with mass balances previously reconstructed using a positive degree-day method. Reconstructed B-a at Mera Glacier is affected by heavy cloud cover during the monsoon, which systematically limited our ability to observe AMAAG at the end of the melting period. In addition, the relation between AMAAG and B-a is constrained over a shorter time period for Mera Glacier (6 years) than for Chhota Shigri Glacier (11 years). Thus the mass balance reconstruction is less robust for Mera Glacier than for Chhota Shigri Glacier. However our method shows promising results and may be used to reconstruct the annual mass balance of glaciers with contrasted seasonal cycles in the western part of the HKH mountain range since the early 2000s when MODIS images became available.
引用
收藏
页码:341 / 355
页数:15
相关论文
共 56 条
[1]   Processes governing the mass balance of Chhota Shigri Glacier (western Himalaya, India) assessed by point-scale surface energy balance measurements [J].
Azam, M. F. ;
Wagnon, P. ;
Vincent, C. ;
Ramanathan, Al. ;
Favier, V. ;
Mandal, A. ;
Pottakkal, J. G. .
CRYOSPHERE, 2014, 8 (06) :2195-2217
[2]   Reconstruction of the annual mass balance of Chhota Shigri glacier, Western Himalaya, India, since 1969 [J].
Azam, Mohd Farooq ;
Wagnon, Patrick ;
Vincent, Christian ;
Ramanathan, Alagappan ;
Linda, Anurag ;
Singh, Virendra Bahadur .
ANNALS OF GLACIOLOGY, 2014, 55 (66) :69-80
[3]   From balance to imbalance: a shift in the dynamic behaviour of Chhota Shigri glacier, western Himalaya, India [J].
Azam, Mohd Farooq ;
Wagnon, Patrick ;
Ramanathan, Alagappan ;
Vinicent, Christian ;
Sharma, Parmanand ;
Arnaud, Yves ;
Linda, Anurag ;
Pottakkal, Jose George ;
Chevallier, Pierre ;
Singh, Virendra Bahadur ;
Berthier, Etienne .
JOURNAL OF GLACIOLOGY, 2012, 58 (208) :315-324
[4]   Remote sensing estimates of glacier mass balances in the Himachal Pradesh (Western Himalaya, India) [J].
Berthier, Etienne ;
Arnaud, Yves ;
Kumar, Rajesh ;
Ahmad, Sarfaraz ;
Wagnon, Patrick ;
Chevallier, Pierre .
REMOTE SENSING OF ENVIRONMENT, 2007, 108 (03) :327-338
[5]   The State and Fate of Himalayan Glaciers [J].
Bolch, T. ;
Kulkarni, A. ;
Kaab, A. ;
Huggel, C. ;
Paul, F. ;
Cogley, J. G. ;
Frey, H. ;
Kargel, J. S. ;
Fujita, K. ;
Scheel, M. ;
Bajracharya, S. ;
Stoffel, M. .
SCIENCE, 2012, 336 (6079) :310-314
[6]   Multi-decadal mass loss of glaciers in the Everest area (Nepal Himalaya) derived from stereo imagery [J].
Bolch, T. ;
Pieczonka, T. ;
Benn, D. I. .
CRYOSPHERE, 2011, 5 (02) :349-358
[7]   Topography, relief, and TRMM-derived rainfall variations along the Himalaya [J].
Bookhagen, B ;
Burbank, DW .
GEOPHYSICAL RESEARCH LETTERS, 2006, 33 (08)
[8]   Toward a complete Himalayan hydrological budget: Spatiotemporal distribution of snowmelt and rainfall and their impact on river discharge [J].
Bookhagen, Bodo ;
Burbank, Douglas W. .
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2010, 115
[9]   Modern climate and erosion in the Himalaya [J].
Burbank, Douglas W. ;
Bookhagen, Bodo ;
Gabet, Emmanuel J. ;
Putkonen, Jaakko .
COMPTES RENDUS GEOSCIENCE, 2012, 344 (11-12) :610-626
[10]   Time-space continuity of daily maps of fractional snow cover and albedo from MODIS [J].
Dozier, Jeff ;
Painter, Thomas H. ;
Rittger, Karl ;
Frew, James E. .
ADVANCES IN WATER RESOURCES, 2008, 31 (11) :1515-1526