scholarly journals Recent Glacier Mass Balance and Area Changes from DEMs and Landsat Images in Upper Reach of Shule River Basin, Northeastern Edge of Tibetan Plateau during 2000 to 2015

Water ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 796 ◽  
Author(s):  
Xiaowen Zhang ◽  
Haojie Li ◽  
Zhihua Zhang ◽  
Qianxin Wu ◽  
Shiqiang Zhang
Keyword(s):  
Tibetan Plateau ◽  
Mass Balance ◽  
River Basin ◽  
Glacier Mass Balance ◽  
Landsat Images

scholarly journals A Surging Glacier Recognized by Remote Sensing on the Zangser Kangri Ice Field, Central Tibetan Plateau

2021 ◽  
Vol 13 (6) ◽  
pp. 1220
Author(s):  
Bowen Jia ◽  
Shugui Hou ◽  
Yetang Wang
Keyword(s):  
Tibetan Plateau ◽  
Mass Balance ◽  
Thermal Emission ◽  
Surface Velocity ◽  
High Mountain ◽  
Glacier Mass Balance ◽  
Landsat 8 ◽  
The Tibetan Plateau ◽  
Landsat Images ◽  
Ice Field

A glacier surge, which is quasi-periodic and involves rapid flow, is an abnormal glacier motion. Although some glaciers have been found to be surging, little is known about surging glaciers on the Tibetan Plateau (TP), especially the Central and Northern TP. Here, we found a surging glacier (GLIMS ID: G085885E34389N) on the Zangser Kangri ice field (ZK), Central TP, by means of the digital elevation models (DEMs) from the Shuttle Radar Topography Mission (SRTM), TanDEM-X 90 m, Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) DEMs, and High Mountain Asia 8-m DEM (HMA), combined with Landsat images and the Global Land Ice Velocity Extraction from Landsat 8 (GoLIVE) dataset. This surge event was confirmed by the crevasses, shear margin, and visible advancing snout shown in the Landsat images produced since 2014 and the HMA. The inter-comparison of these DEMs and the surface velocity changes showed that the surge event started between October 2012 and January 2014. The glacier may have also surged in the 1970s, based on a comparison between the topographical map and Landsat images. The glacier mass balance here has been slightly positive from 1999 onward (+0.03 ± 0.06 m w.e.a−1 from 1999 to 2015, +0.02 ± 0.07 m w.e.a−1 from 1999 to December 2011), which may indicate that the ZK is located on the southern edge of the mass balance anomaly on the TP. Combining with other surging glaciers on the Central and Northern TP, the relatively balanced mass condition, large size, and shallow slope can be associated with glacier surges on the Central and Northern TP.

scholarly journals Glacier runoff variations since 1955 in the Maipo River basin, in the semiarid Andes of central Chile

2020 ◽  
Vol 14 (6) ◽  
pp. 2005-2027 ◽  
Author(s):  
Álvaro Ayala ◽  
David Farías-Barahona ◽  
Matthias Huss ◽  
Francesca Pellicciotti ◽  
James McPhee ◽  
...  
Keyword(s):  
Mass Balance ◽  
River Basin ◽  
Climate Scenario ◽  
Glacier Mass Balance ◽  
Time Step ◽  
Ice Melt ◽  
Kinematic Approximation ◽  
Glacier Runoff ◽  
Drought Mitigation ◽  
Year 2000

Abstract. As glaciers adjust their size in response to climate variations, long-term changes in meltwater production can be expected, affecting the local availability of water resources. We investigate glacier runoff in the period 1955–2016 in the Maipo River basin (4843 km2, 33.0–34.3∘ S, 69.8–70.5∘ W), in the semiarid Andes of Chile. The basin contains more than 800 glaciers, which cover 378 km2 in total (inventoried in 2000). We model the mass balance and runoff contribution of 26 glaciers with the physically oriented and fully distributed TOPKAPI (Topographic Kinematic Approximation and Integration)-ETH glacio-hydrological model and extrapolate the results to the entire basin. TOPKAPI-ETH is run at a daily time step using several glaciological and meteorological datasets, and its results are evaluated against streamflow records, remotely sensed snow cover, and geodetic mass balances for the periods 1955–2000 and 2000–2013. Results show that in 1955–2016 glacier mass balance had a general decreasing trend as a basin average but also had differences between the main sub-catchments. Glacier volume decreased by one-fifth (from 18.6±4.5 to 14.9±2.9 km3). Runoff from the initially glacierized areas was 177±25 mm yr−1 (16±7 % of the total contributions to the basin), but it shows a decreasing sequence of maxima, which can be linked to the interplay between a decrease in precipitation since the 1980s and the reduction of ice melt. Glaciers in the Maipo River basin will continue retreating because they are not in equilibrium with the current climate. In a hypothetical constant climate scenario, glacier volume would reduce to 81±38 % of the year 2000 volume, and glacier runoff would be 78±30 % of the 1955–2016 average. This would considerably decrease the drought mitigation capacity of the basin.

scholarly journals Morphometric Controls on Glacier Mass Balance of the Puruogangri Ice Field, Central Tibetan Plateau

Water ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 496 ◽  
Author(s):  
Lin Liu ◽  
Liming Jiang ◽  
Yafei Sun ◽  
Hansheng Wang ◽  
Chaolu Yi ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Mass Balance ◽  
Glacier Mass Balance ◽  
Central Tibetan Plateau ◽  
Ice Field

scholarly journals Variations in water level and glacier mass balance in Nam Co lake, Nyainqentanglha range, Tibetan Plateau, based on ICESat data for 2003-09

2014 ◽  
Vol 55 (66) ◽  
pp. 239-247 ◽  
Author(s):  
Hongbo Wu ◽  
Ninglian Wang ◽  
Xi Jiang ◽  
Zhongming Guo
Keyword(s):  
Tibetan Plateau ◽  
Mass Balance ◽  
Water Level ◽  
Lake Level ◽  
Altimeter Data ◽  
Glacier Mass Balance ◽  
Lake Area ◽  
Nam Co ◽  
Glacier Meltwater ◽  
Nam Co Lake

AbstractWater level fluctuations of inland lakes are related to regional-scale climate changes, and reflect variations in evaporation, precipitation and glacier meltwater flowing into the lake area in its catchment. In this paper, Ice, Cloud and land Elevation Satellite (ICESat) altimeter data and Landsat imagery (2002-09) are used to estimate Nam Co lake (Nyainqentanglha range, Tibetan Plateau) water elevation changes during 2002-09. In 2003 Nam Co lake covered an area of ~1998.8 ± 4.2 km2 and was situated at 4723 m a.s.l. Over such inland water bodies, ICESat altimeter data offer both wide coverage and spatial and temporal accuracy. We combine remote-sensing and GIS technology to map and reconstruct lake area and increased volume changes during a 7 year time series. Nam Co lake water level increased by 2.4±0.12m (0.33ma–1) between 23 February 2003 and 1 October 2009, and lake volume increased by 4.9 ±0.5 km3. In the past 7 years, Nam Co lake area has increased from 1998.78 ±5.4 to 2023.8 ±3.4 km2, the glacier-covered area has decreased from 832.34 to 821.0 km2 and the drainage basin area has decreased from 201.1 ±4.2 to 196.1 ±2.3 km2. However, the most spectacular feature is the continual water level rise from 2003 to 2009 without an obvious associated increase in precipitation. Based on digital elevation models (DEMs) from Shuttle Radar Topography Mission (SRTM) DEM data and corrected ICESat elevation data, significant changes to glacier mass balance in the western Nyainqentanglha mountains are indicated. Nyainqentanglha mountain glacier surface elevations decreased by 8.39 ± 0.45 m during 2003-09. Over the same period, at least 1.01 km3 of glacial meltwater flowed into Nam Co lake, assuming a glacial runoff coefficient of 0.6. The mean glacier mass-balance value is -490mmw.e. over the corresponding period, indicating that glacier meltwater in the catchment contributes to lake level rise. The contribution rate of glacial meltwater to lake water volume rise is 20.75%. The temporal lake level fluctuation correlates with temperature variations over the same time span.

scholarly journals Correction: Xu, M., et al. Modeling Glacier Mass Balance and Runoff in the Koxkar River Basin on the South Slope of the Tianshan Mountains, China, from 1959 to 2009. Water 2017, 9, 100

Water ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 582
Author(s):  
Min Xu ◽  
Haidong Han ◽  
Shichang Kang
Keyword(s):  
Mass Balance ◽  
River Basin ◽  
Tianshan Mountains ◽  
Glacier Mass Balance ◽  
The South ◽  
South Slope

The authors wish to make the following corrections to this paper [...]

scholarly journals Tree-ring-inferred glacier mass balance variation in southeastern Tibetan Plateau and its linkage with climate variability

2013 ◽  
Vol 9 (6) ◽  
pp. 2451-2458 ◽  
Author(s):  
J. Duan ◽  
L. Wang ◽  
L. Li ◽  
Y. Sun
Keyword(s):  
Tibetan Plateau ◽  
Climate Variability ◽  
Mass Balance ◽  
Tree Ring ◽  
Summer Monsoon ◽  
Indian Summer Monsoon ◽  
Dominant Factor ◽  
Glacier Mass Balance ◽  
Monsoon Precipitation

Abstract. A large number of glaciers in the Tibetan Plateau (TP) have experienced wastage in recent decades. And the wastage is different from region to region, even from glacier to glacier. A better understanding of long-term glacier variations and their linkage with climate variability requires extending the presently observed records. Here we present the first tree-ring-based glacier mass balance (MB) reconstruction in the TP, performed at the Hailuogou Glacier in southeastern TP during 1868–2007. The reconstructed MB is characterized mainly by ablation over the past 140 yr, and typical melting periods occurred in 1910s–1920s, 1930s–1960s, 1970s–1980s, and the last 20 yr. After the 1900s, only a few short periods (i.e., 1920s–1930s, the 1960s and the late 1980s) were characterized by accumulation. These variations can be validated by the terminus retreat velocity of Hailuogou Glacier and the ice-core accumulation rate in Guliya and respond well to regional and Northern Hemisphere temperature anomaly. In addition, the reconstructed MB is significantly and negatively correlated with August–September all-India monsoon rainfall (AIR) (r1871-2008 = −0.342, p < 0.0001). These results suggest that temperature variability is the dominant factor for the long-term MB variation at the Hailuogou Glacier. Indian summer monsoon precipitation does not affect the MB variation, yet the significant negative correlation between the MB and the AIR implies the positive effect of summer heating of the TP on Indian summer monsoon precipitation.

scholarly journals Cryoconite on a glacier on the north-eastern Tibetan plateau: light-absorbing impurities, albedo and enhanced melting

2019 ◽  
Vol 65 (252) ◽  
pp. 633-644 ◽  
Author(s):  
YANG LI ◽  
SHICHANG KANG ◽  
FANGPING YAN ◽  
JIZU CHEN ◽  
KUN WANG ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Mass Balance ◽  
Glacier Mass Balance ◽  
Eastern Tibetan Plateau ◽  
The North ◽  
Ice Surface ◽  
Northern Tibetan Plateau ◽  
North Eastern ◽  
The Mean

ABSTRACTCryoconite is a dark-coloured granular sediment that contains biological and mineralogical components, and it plays a pivotal role in geochemistry, carbon cycling and glacier mass balance. In this work, we collected cryoconite samples from Laohugou Glacier No. 12 (LHG) on the north-eastern Tibetan Plateau during the summer of 2015 and measured the spectral albedo. To explore the impacts of this sediment on surface ablation, the ice melting differences between the cryoconite-free (removed) ice and the intact layers were compared. The results showed that the mean concentrations of black carbon (BC), organic carbon (OC) and total iron (Fe) in the LHG cryoconite were 1.28, 11.18 and 39.94 mg g−1, respectively. BC was found to play a stronger role in solar light adsorption than OC and free Fe. In addition, ice covered by cryoconite exhibited the lowest mean reflectance (i.e., <0.1). Compared with the cryoconite-free ice surface, cryoconite effectively absorbed solar energy and enhanced glacial melting at a rate of 2.27–3.28 cm d−1, and free Fe, BC and OC were estimated to contribute 1.01, 0.99 and 0.76 cm d−1, respectively. This study provides important insights for understanding the role of cryoconite in the glacier mass balance of the northern Tibetan Plateau.

Simulation and analysis of glacier runoff and mass balance in the Nam Co basin, southern Tibetan Plateau

2015 ◽  
Vol 61 (227) ◽  
pp. 447-460 ◽  
Author(s):  
Gao Tanguang ◽  
Kang Shichang ◽  
Lan Cuo ◽  
Zhang Tingjun ◽  
Zhang Guoshuai ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Water Balance ◽  
Mass Balance ◽  
Glacier Mass Balance ◽  
The Tibetan Plateau ◽  
Distributed Hydrological Model ◽  
Index Method ◽  
Glacier Melt ◽  
Glacier Runoff ◽  
Southern Tibetan Plateau

AbstractRunoff estimation in high-altitude glacierized basins is an important issue on the Tibetan Plateau. To investigate glacier mass balance, runoff and water balance in the Qugaqie basin and Zhadang sub-basin in the southern Tibetan Plateau, two glacier models and three snow models were integrated into the spatially distributed hydrological model JAMS/J2K. The results showed that the temperature index method simulated glacier runoff better than the degree-day factor method. The simulated glacier melt volume in the Qugaqie basin in 2006, 2007 and 2008 contributed 58%, 50% and 41%, respectively, to its total runoff. In the Zhadang basin, the glacier melt volume contributed 78% and 66% to its runoff during 2007 and 2008, respectively. Compared with the observation results, the simulated glacier mass balance showed similar variations with slightly higher values, indicating an underestimation of glacier melt volume. The water balance simulation in the upstream areas (705–874 mm) was comparable to that in the downstream areas (1051–1502 mm) and generally lower than the observed results. In both basins, the glacier mass-balance simulation was relatively accurate in the melt season compared to the other seasons.

scholarly journals Simulation and construction of the glacier mass balance in the Manas River Basin, Tianshan, China from 2000 to 2016

2020 ◽  
Vol 30 (6) ◽  
pp. 988-1004
Author(s):  
Guining Zhao ◽  
Zhengyong Zhang ◽  
Lin Liu ◽  
Zhongqin Li ◽  
Puyu Wang ◽  
...  
Keyword(s):  
Mass Balance ◽  
River Basin ◽  
Glacier Mass Balance ◽  
Manas River Basin

The role of meteorological forcing and snow model complexity in winter glacier mass balance estimation, Columbia River basin, Canada

2020 ◽  
Vol 34 (25) ◽  
pp. 5085-5103
Author(s):  
Marzieh Mortezapour ◽  
Brian Menounos ◽  
Peter L. Jackson ◽  
Andre R. Erler ◽  
Ben M. Pelto
Keyword(s):  
Mass Balance ◽  
River Basin ◽  
Columbia River ◽  
Model Complexity ◽  
Columbia River Basin ◽  
Glacier Mass Balance ◽  
Meteorological Forcing ◽  
Snow Model
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