• Anil V Kulkarni

      Articles written in Journal of Earth System Science

    • Reconstruction of specific mass balance for glaciers in Western Himalaya using seasonal sensitivity characteristic(s)

      Vinay Kumar Gaddam Anil V Kulkarni Anil Kumar Gupta

      More Details Abstract Fulltext PDF

      Seasonal sensitivity characteristics (SSCs) were developed for Naradu, Shaune Garang, Gor Garang and Gara glaciers, Western Himalaya to quantify the changes in mean specific mass balance using monthly temperature and precipitation perturbations. The temperature sensitivities were observed high during summer (April–October) and precipitation sensitivities during winter months (November–March), respectively. The reconstructed mass balance correlates well with the field and remote sensing measurements, available between 1980 and 2014. Further, SSCs were used with the monthly mean temperatures and precipitation estimates of ERA 20CM ensemble climate reanalysis datasets to reconstruct the specific mass balance for a period of 110 years, between 1900 and 2010. Mass balance estimates suggest that the Shaune Garang, Gor-Garang and Gara glaciers have experienced both positive and negative mass balance, whereas the Naradu glacier has experienced only negative mass balance since 1900 AD. Further, a cumulative loss of −133±21.5 m.w.e was estimated for four glaciers during the observation period. This study is the first record from Indian Himalaya in evaluating the mass balance characteristics over a century scale.

    • Estimation of glacier depth and ice volume of Kabul Basin, Afghanistan


      More Details Abstract Fulltext PDF

      Kabul Basin in the Hindukush–Karakoram–Himalaya (HKH) consists of 3097 glaciers that are crucial for Afghanistan’s irrigation and hydrological needs. However, they are rapidly shrinking and the consequences of this melting result in a shortage of water availability and glacial lake development. Due to the rugged and complex topography of the area and the existing geopolitical situations, the study of ice volume and thickness of the Kabul Basin is minimal compared to other regions of HKH. Therefore, this study estimates glaciers’ depth and volume in the Kabul Basin using volume area scaling and laminar flow methods. The glacier depth and volume of 290 large glaciers (area > 1 km$^2$) are estimated using laminar flow equations by considering surface velocity, and slope. The study Bnds that the region shows a mean surface velocity of 15.30 ± 0.04 m/yr and a mean depth of 47.28 ± 6.43 m. Volume–area (V–A) scaling methods are used to estimate the glacier volume for the remaining 2807 smaller glaciers. The analysis reveals that the Kabul basin holds a total glacier stored water of 119.69 ± 22.26 km$^3$, equivalent to 107.72 ± 20 Gigatonne ice mass. This study is significant as it can help manage the country’s water resources and disaster risk reduction.


      $\bullet$ Detailed study of glaciers of Kabul Basin is described in this article.

      $\bullet$ The glacier depth and glacier stored water of Kabul Basin are estimated using laminar flow and Volume-Area Scaling method.

      $\bullet$ The Kabul glaciers have a mean ice surface velocity of 15.30 ± 0.04 m/yr and mean glacier depth of 47.28 ± 6.43 m.

      $\bullet$ The basin holds a total glacier stored water of 107.72 ± 20 Gigatonne.

      $\bullet$ The article describes the possibilities of remote sensing and Geographic Information System (GIS) techniques in glacier studies.

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