A glacier inventory for the western Nyainqentanglha Range and the Nam Co Basin, Tibet, and glacier changes 1976–2009

Bolch, Tobias; Yao, Tandong; Kang, Shichang; Buchroithner, Manfred; Scherer, Dieter; Maussion, Fabien; Huintjes, Eva; Schneider, Christoph

doi:10.5194/tc-4-419-2010

Cited by 265 publications

(224 citation statements)

References 48 publications

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“…The implied shrinkage rate of ∼−1.4% a −1 over ∼35 years is implausibly large for this area and suggests that CGI-1 may have included too much snow or have involved misidentified glacier areas. Similarly, Bolch and others (2010) present evidence that the Chinese topographic maps misinterpret glacier outlines in their study area in Mount Nyainqentanghla.…”

Section: Comparison Among Different Glacier Inventoriesmentioning

confidence: 99%

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Glacier changes on the Tibetan Plateau derived from Landsat imagery: mid-1970s – 2000–13

Zong

Tian

et al. 2017

J. Glaciol.

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ABSTRACT. Glacier area changes on the Tibetan Plateau were studied in different drainage basins based on Landsat satellite images from three epochs: 263 in the mid-1970s, 150 in 1999-2002 and 148 in 2013/ 14. Three mosaics (M1976, M2001 and M2013) with minimal cloud and snow cover were constructed, and the uncertainty due to each epoch having a finite span was accounted for. Glacier outlines (TPG1976, TPG2001 and TPG2013) were digitized manually with guidance from the SRTM DEM v4.1 and Google Earth imagery. To achieve complete multi-temporal coverage in a reasonable time, only debris-free ice was delineated. Area mapping uncertainty was evaluated at three study sites, Mount Qomolangma (Everest), Mount Naimona'Nyi, Mount Geladandong, where the largest differences between present and earlier measurements were within ∼±4%. Area differences with previous inventories ranged from −19.6% (TPG1976 minus the first Chinese Glacier Inventory) to −3.6% and −1.1% (TPG2013 and TPG2001, respectively minus the second Chinese Glacier Inventory), while the difference TPG2001 minus the GAMDAM Glacier Inventory was +10.4%. Glacier area on the plateau decreased from 44 366 ± 2827 km 2 (1.7% of the study area) in the 1970s to 42 210 ± 1621 km 2 in 2001 and 41 137 ± 1616 km 2 in 2013. Shrinkage was faster in external drainage basins of the southeast than in the interior basins of the northwest, from a maximum of −0.43% a −1 (−1.60% a −1 during 1994-2013) in the Mekong catchment down to a minimum of −0.12% a −1 in the Tarim interior drainage.

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Section: Comparison Among Different Glacier Inventoriesmentioning

confidence: 99%

“…The uncertainty of the outline position, chosen to be one half of an image pixel (Bolch and others, 2010), i.e. ±30 m for Landsat MSS and ±15 m for Landsat-7 TM/ETM+, Landsat8 OLI and HJ-1A/ 1B, was multiplied by the length of the margin.…”

Section: Uncertainty Assessmentmentioning

confidence: 99%

Glacier changes on the Tibetan Plateau derived from Landsat imagery: mid-1970s – 2000–13

Zong

Tian

et al. 2017

J. Glaciol.

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“…Glaciers with a greater proportion of their areas at higher elevations are insensitive to the increase in air temperature and will lose a small amount of mass under warming and increased precipitation. This phenomenon is very significant for glaciers in the same region, where large differences in mass balance and retreat rate are observed in glaciers that are geographically close to one another (Bolch and others, 2010;Yao and others, 2012;Farinotti and others, 2015;Liu and Liu, 2015). Take Zhadang and Gurenhekou glaciers in the West Nyainqentanglha Range as examples.…”

Section: Comparing Muztag Ata No15 Glacier With Other Glaciers On Thmentioning

confidence: 99%

Reconstruction of the mass balance of Muztag Ata No. 15 glacier, eastern Pamir, and its climatic drivers

et al. 2018

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ABSTRACT. The mass-balance of Muztag Ata No. 15 (MZ15) glacier in the eastern Pamir is reconstructed between 1980 and 2012 using an energy-based mass-balance model. The results show that this glacier has been characterized by obvious interannual mass-balance changes during 1980-2012 with a slightly positive mass balance during 1998-2012. Precipitation in the ablation season is a primary driver of these mass-balance fluctuations. Distinct changes in the mass-balance of MZ15 glacier between 1980-1997 and 1998-2012 are thought to be associated with changes in the regionally averaged meridional wind speed and corresponding precipitation in the ablation season. The negative and positive mass-balance phases during 1980-1997 and 1998-2012, respectively, were associated with northerly and southerly wind anomalies in the eastern Pamir and their corresponding decreasing and increasing precipitation. These changes in circulation appear to be linked to the mid-latitude climate. Finally, contrary to the variation of most glaciers on the Tibetan Plateau, glaciers in the Karakoram-western Kunlun-eastern Pamir appear to have retreated more slowly over the past 10 years than during the 1970s-2000. This contrasting trend may be caused by different changes in snowfall and different topography factors in different regions under warming and increased precipitation.

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“…The uncertainties of the glacier area was estimated by determining a buffer area developed about each test glacier (Bolch et al 2010;Granshaw and Fountain 2006). The buffer area around each glacier was fixed to double the digitization error (Bolch et al 2010;Racoviteanu et al 2008;Wang et al 2009).…”

Section: Error Estimation and Uncertainty Analysismentioning

confidence: 99%

“…The buffer area around each glacier was fixed to double the digitization error (Bolch et al 2010;Racoviteanu et al 2008;Wang et al 2009). Then the amount of uncertainty of glacier area (U area ) for each glacier was acquired by the following formula (Hall et al 2003;Ye et al 2006):…”

Section: Error Estimation and Uncertainty Analysismentioning

confidence: 99%

Remote Sensing-Based Study for Evaluating the Changes in Glacial Area: A Case Study from Himachal Pradesh, India

et al. 2017

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A glacier inventory for the western Nyainqentanglha Range and the Nam Co Basin, Tibet, and glacier changes 1976–2009

Cited by 265 publications

References 48 publications

Glacier changes on the Tibetan Plateau derived from Landsat imagery: mid-1970s – 2000–13

Glacier changes on the Tibetan Plateau derived from Landsat imagery: mid-1970s – 2000–13

Reconstruction of the mass balance of Muztag Ata No. 15 glacier, eastern Pamir, and its climatic drivers

Remote Sensing-Based Study for Evaluating the Changes in Glacial Area: A Case Study from Himachal Pradesh, India

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