Sediment Transport and Yield at the Raikot Glacier, Nanga Pare At, Punjab Himalaya

Gardner, James S.; Jones, Norman K.

doi:10.4324/9780203414637_chapter_8

Cited by 28 publications

(27 citation statements)

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“…Small temperate glaciers in the Swiss Alps show erosion rates of 1-2 mm yr K1 (Bezinge, 1987). In the Himalayas, the melt period erosion rate in the Dokriani Glacier is 1.0 mm ; the Rakiot Glacier in Nanga Parbat is 1.4-2.1 mm (Gardner and Jones, 1984). The Hunza River in western Karakoram Himalayas has an annual erosion rate of 1.8 mm yr K1 (Ferguson, 1984).…”

Section: Sediment Yield and Erosionmentioning

confidence: 98%

Suspended sediment from the Gangotri Glacier: Quantification, variability and associations with discharge and air temperature

Haritashya

Singh

Kumar

et al. 2006

Journal of Hydrology

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Section: Sediment Yield and Erosionmentioning

confidence: 98%

Suspended sediment from the Gangotri Glacier: Quantification, variability and associations with discharge and air temperature

Haritashya

Singh

Kumar

et al. 2006

Journal of Hydrology

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“…Previous research indicates a complex relationship between debris cover thickness and ablation, where debris cover can either retard or enhance ablation rates depending on the spatial variability in debris lithology and thickness (Loomis 1970, Mattson et al 1993. Remote-sensing studies indicate that debris cover thickness can be highly variable (Bishop et al 1995), and field research indicates a general pattern of greater debris depths towards the terminus and lateral edges of many alpine glaciers (e.g., Gardner and Jones 1993). These patterns are caused by mass movement and ice flow dynamics that transport debris to the terminus and edges via horizontal and vertical advection.…”

Section: Debris-covered Glaciersmentioning

confidence: 99%

Theoretical Foundations of Remote Sensing for Glacier Assessment and Mapping

Bishop

Bush

Furfaro

et al. 2014

Global Land Ice Measurements From Space

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The international scientific community is actively engaged in assessing ice sheet and alpine glacier fluctuations at a variety of scales. The availability of stereoscopic, multitemporal, and multispectral satellite imagery from the optical wavelength regions of the electromagnetic spectrum has greatly increased our ability to assess glaciological conditions and map the cryosphere. There are, however, important issues and limitations associated with accurate satellite information extraction and mapping, as well as new opportunities for assessment and mapping that are all rooted in understanding the fundamentals of the radiation transfer cascade. We address the primary radiation transfer components, relate them to glacier dynamics and mapping, and summarize the analytical approaches that permit transformation of spectral variation into thematic and quantitative parameters. We also discuss the integration of satellite-derived information into numerical modeling approaches to facilitate understandings of glacier dynamics and causal mechanisms.

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“…The valley floors have a semi-arid climate with annual precipitation < 200 mm and high summer temperatures that exceed 30jC. At heights over 4500 m asl, the peaks give rise to year-round orographic precipitation with annual means >2000 mm, most of which falls as snow (Gardner, 1985;Gardner and Jones, 1993;Kick 1962). Below f 3000 m asl, the vegetation comprises submontane/ cool steppic (semi-arid) associations and is replaced at higher altitudes by subalpine/montane communities up to f 4000 m asl.…”

Section: Geomorphological Setting Of Study Areasmentioning

confidence: 99%

Contemporary sediment production and transfer in high-altitude glaciers

Owen

Derbyshire

Scott

2003

Sedimentary Geology

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The nature of fine-grained sediment production and transfer in high-altitude debris-covered glaciers was studied by examining the Rakhiot and Chungphar glaciers in the Nanga Parbat Himalaya, Northern Pakistan. Transport pathways, from the source areas to the glacier snout, were mapped and samples collected for particle size analysis and scanning electron microscopy. Positive down-glacier trends in sediment fining and increased weathering showed that debris transport in the supraglacial zone of these Himalayan glaciers is an important contributor to contemporary glacial sediment production, resulting in intense comminution that yields large volumes of fine sediment. These findings cast doubt on the traditional view that the basal traction zone of glaciers is the only major source of fine sediment production in glaciated environments, although that view may hold true for classic alpine glaciers that are at lower altitudes and, as a consequence, generally have less supraglacial debris cover. To test this hypothesis, the Glacier de Cheilon, in the Swiss Alps was also studied. This glacier did not exhibit such striking down-glacier trends in the particle size characteristics measured. It is thus suggested that a thick debriscover may be an important source of fine-grained sediments on glaciers that occur in high-altitude environments. D

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Sediment Transport and Yield at the Raikot Glacier, Nanga Pare At, Punjab Himalaya

Cited by 28 publications

References 0 publications

Suspended sediment from the Gangotri Glacier: Quantification, variability and associations with discharge and air temperature

Suspended sediment from the Gangotri Glacier: Quantification, variability and associations with discharge and air temperature

Theoretical Foundations of Remote Sensing for Glacier Assessment and Mapping

Contemporary sediment production and transfer in high-altitude glaciers

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