Evaluating glacier dynamics using temporal remote sensing images: a case study of Hunza Valley, northern Pakistan

Shafique, Muhammad; Faiz, Baber; Ullah, Saleem

doi:10.1007/s12665-018-7365-y

Cited by 14 publications

(12 citation statements)

References 48 publications

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“…In contrast to investigations byShafique et al (2018), our own multitemporal remotesensing analysis of Batura Glacier indicates fluctuating front positions with an advance of 427 m between 1998 and 2018, but a net retreat of 680 m over the 53 years between 1965 and 2018. Passu Glacier shows a front retreat of 774 m over the same period, with the formation of a proglacial lake.…”

contrasting

confidence: 99%

Cryosphere-Fed Irrigation Networks in the Northwestern Himalaya: Precarious Livelihoods and Adaptation Strategies Under the Impact of Climate Change

Nüsser

Dame

Parveen

et al. 2019

Mountain Research and Development

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contrasting

confidence: 99%

Cryosphere-Fed Irrigation Networks in the Northwestern Himalaya: Precarious Livelihoods and Adaptation Strategies Under the Impact of Climate Change

Nüsser

Dame

Parveen

et al. 2019

Mountain Research and Development

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“…In this study, we analyzed the snow cover changes of Astore and Shigar using Landsat data in the Google Earth Engine (GEE) platform for the period of 1991-2021. The normalized difference snow index (NDSI) was used in this study for the extraction of snow cover because in previous studies (Burns and Nolin, 2014;Shafique et al, 2018;Tong et al, 2020) NDSI revealed a better accuracy in shadowed and mountainous regions. In this study, it was found that the snow cover area is increasing in Astore and Shigar which is in line with some previous studies (Tahir et al, 2015;Tahir et al, 2016;Anjum et al, 2019;Shafiq et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Trend of snow cover under the influence of climate change using Google Earth Engine platform: A case study of Astore (Western Himalayas) and Shigar (Karakoram region)

Moazzam

Rahman²,

Lee³

et al. 2022

Front. Environ. Sci.

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Freshwater resources present in the Upper Indus Basin (UIB) supply water to Pakistan’s irrigation. Half of the annual water discharge in the UIB is contributed from the glacier and snow-fed basins in the Hindu Kush, Karakoram, and Himalaya (HKH) region, and it is currently under the threat of climate change. Therefore, it is very necessary to study and monitor the spatiotemporal changes in the snow cover area (SCA) and its response to climate variables to efficiently manage water reservoirs. Thus, keeping this problem in mind, we conducted this study using the Google Earth Engine Application Programming Interface (GEE API) for Astore and Shigar. We used mean annual Landsat data between 1991 and 2021 to derive the SCA using the normalized difference snow index (NDSI). ASTER GDEM data was used to extract the elevation and analyze the distribution of SCA on different elevation zones. Eventually, we used the climate research unit (CRU) data (rainfall and temperature) to analyze them with SCA. The results revealed that SCA in Astore and Shigar has an increasing trend with a rate of 11.16 km2/year and 4.27 km2/year, respectively. Mean annual precipitation and temperature also confirmed the increasing trend of SCA because mean annual precipitation is increasing and temperature is decreasing in both regions. SCA and elevation analysis revealed that SCA is decreasing on foothills while increasing at the valley top. This is because temperature is increasing and precipitation is decreasing from zone 1 to zone 3 and vice versa for zone 4. It is found that Astore and Shigar in UIB have an increasing trend of SCA and are not affected by global warming. Therefore, it is necessary to conduct studies on large scale to efficiently evaluate the impact of climate change on SCA.

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“…Despite the hydrological importance, there is no consensus on the assessment of the stability of the glaciers in the region. Previous studies have shown conflicting results for glaciers located in the Karakoram ranges, concluding that they are stable, retreating, or even advancing (the so-called Karakoram Anomaly [5,6]). The Indus River Basin (IRB) has experienced increasing temperatures and features immense spatial variability in climate [7].…”

Section: Introductionmentioning

confidence: 98%

The Spatiotemporal Variability of Temperature and Precipitation Over the Upper Indus Basin: An Evaluation of 15 Year WRF Simulations

et al. 2020

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Investigating the trends in the major climatic variables over the Upper Indus Basin (UIB) region is difficult for many reasons, including highly complex terrain with heterogeneous spatial precipitation patterns and a scarcity of gauge stations. The Weather Research and Forecasting (WRF) model was applied to simulate the spatiotemporal variability of precipitation and temperature over the Indus Basin from 2000 through 2015 with boundary conditions derived from the Climate Forecast System Reanalysis (CFSR) data. The WRF model was configured with three nested domains (d01–d03) with horizontal resolutions increasing inward from 36 km to 12 km to 4 km horizontal resolution, respectively. These simulations were a continuous run with a spin-up year (i.e., 2000) to equilibrate the soil moisture, snow cover, and temperature at the beginning of the simulation. The simulations were then compared with TRMM and station data for the same time period using root mean squared error (RMSE), percentage bias (PBIAS), mean bias error (MBE), and the Pearson correlation coefficient. The results showed that the precipitation and temperature simulations were largely improved from d01 to d03. However, WRF tended to overestimate precipitation and underestimate temperature in all domains. This study presents high-resolution climatological datasets, which could be useful for the study of climate change and hydrological processes in this data-sparse region.

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Evaluating glacier dynamics using temporal remote sensing images: a case study of Hunza Valley, northern Pakistan

Cited by 14 publications

References 48 publications

Cryosphere-Fed Irrigation Networks in the Northwestern Himalaya: Precarious Livelihoods and Adaptation Strategies Under the Impact of Climate Change

Cryosphere-Fed Irrigation Networks in the Northwestern Himalaya: Precarious Livelihoods and Adaptation Strategies Under the Impact of Climate Change

Trend of snow cover under the influence of climate change using Google Earth Engine platform: A case study of Astore (Western Himalayas) and Shigar (Karakoram region)

The Spatiotemporal Variability of Temperature and Precipitation Over the Upper Indus Basin: An Evaluation of 15 Year WRF Simulations

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