Investigating mass balance of Parvati glacier in Himalaya using satellite imagery based model

Tak, Swati; Keshari, Ashok K.

doi:10.1038/s41598-020-69203-8

Cited by 19 publications

(7 citation statements)

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“…This method has considerable uncertainty (Pratap et al, 2016;Tawde et al, 2016). This was first applied on the Gara Glacier (from 1977Glacier (from -1978Glacier (from to 1982Glacier (from -1983 and the Gor-Garang Glacier (from 1976-77 to 1983, and then has been used to estimate the surface mass balance of Himalayan glaciers (e.g., Kulkarni et al, 2004;Mir et al, 2014 andTak andKeshari, 2020). Tawde et al (2016) developed an improved AAR method in which they used satellite data and a temperature-index model.…”

Section: Remote Sensing Based Estimatesmentioning

confidence: 99%

Challenges in Understanding the Variability of the Cryosphere in the Himalaya and Its Impact on Regional Water Resources

et al. 2022

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The Himalaya plays a vital role in regulating the freshwater availability for nearly a billion people living in the Indus, Ganga, and Brahmaputra River basins. Due to climate change and constantly evolving human-hydrosphere interactions, including land use/cover changes, groundwater extraction, reservoir or dam construction, water availability has undergone significant change, and is expected to change further in the future. Therefore, understanding the spatiotemporal evolution of the hydrological cycle over the Himalaya and its river basins has been one of the most critical exercises toward ensuring regional water security. However, due to the lack of extensive in-situ measurements, complex hydro-climatic environment, and limited collaborative efforts, large gaps in our understanding exist. Moreover, there are several significant issues with available studies, such as lack of consistent hydro-meteorological datasets, very few attempts at integrating different data types, limited spatiotemporal sampling of hydro-meteorological measurements, lack of open access to in-situ datasets, poorly accounted anthropogenic climate feedbacks, and limited understanding of the hydro-meteorological drivers over the region. These factors result in large uncertainties in our estimates of current and future water availability over the Himalaya, which constraints the development of sustainable water management strategies for its river catchments hampering our preparedness for the current and future changes in hydro-climate. To address these issues, a partnership development workshop entitled “Water sEcurity assessment in rIvers oriGinating from Himalaya (WEIGH),” was conducted between the 07th and 11th September 2020. Based on the intense discussions and deliberations among the participants, the most important and urgent research questions were identified. This white paper synthesizes the current understanding, highlights, and the most significant research gaps and research priorities for studying water availability in the Himalaya.

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Section: Remote Sensing Based Estimatesmentioning

confidence: 99%

Challenges in Understanding the Variability of the Cryosphere in the Himalaya and Its Impact on Regional Water Resources

et al. 2022

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“…Glacier MB is the most reliable metric for assessing the health of a glacier and its response to climate change 7 , 22 , 23 . However, studying glacier MB in the Himalaya is difficult due to a combination of adverse factors such as rugged topography, remoteness, security concerns, logistical constraints, and a lack of hydro-meteorological observations 24 , 25 .…”

Section: Introductionmentioning

confidence: 99%

Towards understanding various influences on mass balance of the Hoksar Glacier in the Upper Indus Basin using observations

Romshoo

Murtaza

Abdullah

2022

Sci Rep

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Mass balance is a good indicator of glacier health and sensitivity to climate change. The debris-covered Hoksar Glacier (HG) in the Upper Indus Basin (UIB) was studied using direct and geodetic mass balances. During the 5-year period from 2013 to 2018, the glacier’s mean in situ mass balance (MB) was − 0.95 ± 0.39 m w.e. a−1. Similarly, the glacier’s mean geodetic MB from 2000 to 2012 was − 1.20 ± 0.35 m w.e. a−1. The continuously negative MB observations indicated that the HG is losing mass at a higher rate than several other Himalayan glaciers. The glacier showed increased mass loss with increasing altitude, in contrast to the typical decreasing MB with increasing elevation, due to the existence of thick debris cover in the ablation zone, which thins out regularly towards the accumulation zone. Rising temperatures, depleting snowfall and increasing black carbon concentration in the region, indicators of climatic change, have all contributed to the increased mass loss of the HG. During the lean period, when glacier melt contributes significantly to streamflow, the mass loss of glaciers has had a considerable impact on streamflow. Water availability for food, energy, and other essential economic sectors would be adversely affected, if, glaciers in the region continued to lose mass due to climatic change. However, long-term MB and hydro-meteorological observations are required to gain a better understanding of glacier recession in the region as climate changes in the UIB.

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“…Under the high demand for water as a result of the rapidly growing population and irrigation combined with the arid climate in the DAC (Barnett et al, 2005;Fan et al, 2013;, the importance of water provided by glaciers in arid regions is apparent (Barnett et al, 2005;Pritchard, 2019;Tak & Keshari, 2020;Wang et al, 2021). Affected by global https://doi.org/10.5194/hess-2021-377 Preprint.…”

Section: Introductionmentioning

confidence: 99%

The Spatiotemporal Regime of Glacier Runoff in Oases Indicates the Potential Climatic Risk in Dryland Areas of China

Leng

Feng

et al. 2021

Preprint

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Abstract. Glaciers continuously affected by climate change are of great concern; their supply and runoff variation tendency under the pressure of increasing populations, especially in dryland areas, should be studied. Due to the difficulty of observing glacier runoff, little attention has been given to establishing high-resolution and long-term series datasets established for glacial runoff. Using the latest dataset using digital elevation models (DEMs) to obtain regional individual glacier mass balance, simulating the spatiotemporal regime of glacier runoff in oases that support almost the entire income in the dryland areas of China (DAC) could be possible. The simulations quantitatively assess glacier runoff, including meltwater runoff and delayed runoff, in each basin of the DAC at a spatial resolution of 100 m from 1961 to 2015, classify glaciers according to the potential climatic risks based on the prediction results. The total glacier runoff in the DAC is (98.52 ± 67.37) × 108 m3, in which the meltwater runoff is (63.43 ± 42.17) × 108 m3, accounting for 64.38 %. Most basins had continuously increasing tendencies of different magnitudes from 1961 to 2015, except for the Shiyang River basin, which reached its peak in approximately 2000. Glacier runoff nurtured nearly 143,939.24 km2 of oasis agricultural areas (OAA) until 2015, while 19 regions with a total population of 14 million were built alongside the oases, where glacier runoff occupies an important place in agricultural, industrial and municipal water consumption. Therefore, providing a long time series of glacier runoff for different river basins is of great significance to the sustainable development of the oasis economy in the arid zones.

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Investigating mass balance of Parvati glacier in Himalaya using satellite imagery based model

Cited by 19 publications

References 50 publications

Challenges in Understanding the Variability of the Cryosphere in the Himalaya and Its Impact on Regional Water Resources

Challenges in Understanding the Variability of the Cryosphere in the Himalaya and Its Impact on Regional Water Resources

Towards understanding various influences on mass balance of the Hoksar Glacier in the Upper Indus Basin using observations

The Spatiotemporal Regime of Glacier Runoff in Oases Indicates the Potential Climatic Risk in Dryland Areas of China

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