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Characteristics of Khumbu Glacier, Nepal Himalaya: recent change in the debris-covered area

  • M. Nakawo (a1), H. Yabuki (a1) and A. Sakai (a1)
Abstract

Using satellite data, the longitudinal distribution of the ablation rate and flow velocity were estimated for the ablation area, where glacier ice is covered with supraglacial debris. The ablation rate, small around Everest Base Camp (EBC) just below the equilibrium line, increased down-glacier for about 3 km, then decreased gradually toward the apparent terminus, located about 10 km from EBC. The velocity decreased almost linearly from EBC to the terminus. The results allowed estimation of the recent change of ice thickness using the continuity equation. The glacier has thinned recently in the ablation area. The rate of thinning was large near EBC, where the surface is either bare ice or covered with very thin debris cover, but relatively small and rather uniform at lower sites, where the supraglacial debris layer was thick and supraglacial lakes and ice cliffs predominate. The general pattern is compatible with field observations.

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References
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Fushimi, H. 1977. Structural studies of glaciers in the Khumbu region. Seppyo, J. Jpn. Soc. Snow Ice, Special Issue 39, 30-39.
Fushimi, H., Yoshida, M., Watanabe, O. and Upadhyay, B. P.. 1980. Distributions and grain sizes of supraglacial debris in the Khumbu glacier, Khumbu region, Nepal. Seppyo, J. Jpn. Soc. Snow Ice, Special Issue 41, 18-25.
Hall, D. K., Ormsby, J. P., Bindschadler, R. A. and Siddalingaiah, H.. 1987. Characterization of snow and ice reflectance zones on glaciers using Landsat thematic mapper data. Ann. Glaciol., 9, 104-108.
Higuchi, K. 1993. Nepal-Japan cooperation in research on glaciers and climates in the Nepal Himalayas. International Association of Hydrological Sciences Publication 218 (Symposium at Kathmandu 1992 – Snow and Glacier Hydrology), 29-36.
Higuchi, K., Mae, S. and Kodama, H.. 1978. Utolshchenie lednika Kkhumbu, stekaiushchego s gory Everest / The thickening of Khumbu Glacier flowing from Mt. Everest, east Nepal. Mater. Glyatsiol. Issled. 33, 107-112 (Russian), 171-175 (English).
Inoue, J. 1976. Climate of Khumbu Himal. Seppyo, J. Jpn. Soc. Snow Ice, Special Issue 38, Part I, 66-73.
Inoue, J. and Ybshida, M.. 1980. Ablation and heat exchange over the Khumbu glacier. Seppyo, J. Jpn. Soc. Snow Ice, Special Issue 41, 26-33.
Iwata, S., Watanabe, O. and Fushimi, H.. 1980. Surface morphology in the ablation area of the Khumbu glacier. Seppyo, J. Jpn. Soc. Snow Ice, Special Issue 41, 9-17.
Kodama, H. and Mae, S.. 1976. Flow of glaciers in the Khumbu region. Seppyo, J. Jpn. Soc. Snow Ice, Special Issue 38, Part I, 31-36.
Mattson, L. E., Gardner, J. S. and Young, G.J.. 1993. Ablation on debris covered glaciers: an example from the Rakhiot Glacier, Punjab, Himalaya. International Association of Hydrological Sciences Publication 218 (Symposium at Kathmandu 1992 – Snow and Glacier Hydrology), 289-296.
Moribayashi, S. 1978. Transverse profiles of Khumbu Glacier obtained by gravity observation. Seppyo, J. Jpn. Soc. Snow Ice, Special Issue 40, 21-25.
Müller, F. 1968. Mittelfristige Schwankungen der Oberflächengeschwindigkeit des Khumbugletschers am Mount Everest. Schweiz. Bauztg., 86(31), 569-573.
Nakawo, M., Iwata, S., Watanabe, O. and Ybshida, M.. 1986. Processes which distribute supraglacial debris on the Khumbu Glacier, Nepal Himlaya. Ann. Glaciol., 8, 129-131.
Nakawo, M., Morohoshi, T. and Uehara, S.. 1993. Satellite data utilization for estimating ablation ofdebris covered glaciers. InternationalAssociation of Hydrological Sciences Publication 218 (Symposium at Kathmandu 1992 – Snow and Glacier Hydrology), 75-83.
Nakawo, M. and Takahashi, S.. 1982. A simplified model for estimating glacier ablation under a debris layer. International Association of Hydrological SciencesPublication 138 (Symposium at Exeter 1982 – Hydrological Aspects of Alpine and High Mountain Areas), 137-145.
Nakawo, M. and Young, G.J.. 1981. Field experiments to determine the effect of a debris layer on ablation of glacier ice. Ann. Glaciol., 2, 85-91.
Nakawo, M. and Yhung, G.J.. 1982. Estimate of glacier ablation under a debris layer from surface temperature and meteorological variables. J. Glaciol., 28(98), 29-34.
National Geographic Society. 1988. Mount Everest. Washington, DC, National Geographic Society.
Nepal, Ministry of Water Resources. 1993. Snow and glacier hydrology year book 1987-1992. Kathmandu, Nepal, Ministry of Water Resources. Department of Hydrology and Meteorology.
Rana, B. 1997. Study of glacier ablation under debris-cover for runoff modeling of a river basin in Langtang Valley, Nepal Himalaya. (Ph.D. thesis, Nagoya University.)
Rana, B., Nakawo, M., Fukushima, Y. and Ageta, Y.. 1997. Application of a conceptual precipitation-runoff model (HYCYMODEL) in the debriscovered glacierized basin in the Langtang Valley, Nepal Himalaya. Ann. Glaciol., 25, 226-231.
Sakai, A., Nakawo, M. and Fujita, K.. 1998. Melt rate of ice cliffs on the Lirung Glacier, Nepal Himalayas, 1996. Bull. Glacier Res. 16, 57-66.
Seko, K., Yabuki, H., Nakawo, M., Sakai, A., Kadota, T. and Yamada, Y. 1998. Changing surface features of Khumbu Glacier, Nepal Himalayas revealed by SPOT images. Bull. Glacier Res. 16, 33-41.
Watanabe, O. and 7 others. 1980. Outline of debris cover project in Khumbu Glacier. Seppyo, J. Jpn. Soc. Snow Ice, Special Issue 41, 5-8.
Watanabe, O., Iwata, S. and Fushimi, H.. 1986. Topographic characteristics in the ablation area of the Khumbu Glacier, Nepal Himlaya. Ann. Glaciol., 8, 177-180.
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Annals of Glaciology
  • ISSN: 0260-3055
  • EISSN: 1727-5644
  • URL: /core/journals/annals-of-glaciology
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