A rapidly growing moraine-dammed glacial lake on Ngozumpa Glacier, Nepal

Abstract Moraine-dammed glacial lakes are becoming increasingly common in the Himalaya as a result of glacier mass loss, causing concern about glacier lake outburst flood risk. In addition to extant lakes, the potential exists for many more to form, as more glaciers ablate down to the level of potential moraine dams. In this paper, we document the recent rapid growth of, a moraine-dammed lake on Ngozumpa Glacier, Nepal. Using a combination of ground-based mapping and sonar surveys, aerial photographs (

[1]  L. Owen,et al.  The role of the Indian summer monsoon and the mid-latitude westerlies in Himalayan glaciation: review and speculative discussion , 1998, Journal of the Geological Society.

[2]  L. Nicholson,et al.  Calculating ice melt beneath a debris layer using meteorological data , 2006, Journal of Glaciology.

[3]  D. Qin,et al.  Snow accumulation rate on Qomolangma (Mount Everest), Himalaya: synchroneity with sites across the Tibetan Plateau on 50–100 year timescales , 2008, Journal of Glaciology.

[4]  A. Shrestha,et al.  Glacial Lake Outburst Floods in the Sagarmatha Region , 2007 .

[5]  N. Glasser,et al.  Sedimentological, geomorphological and dynamic context of debris-mantled glaciers, Mount Everest (Sagarmatha) region, Nepal , 2008 .

[6]  J. Clague,et al.  A procedure for making objective preliminary assessments of outburst flood hazard from moraine-dammed lakes in southwestern British Columbia , 2007 .

[7]  Koji Fujita,et al.  Spatial Distribution of Thermal Properties on Debris-Covered Glaciers in the Himalayas Derived From ASTER Data , 2006 .

[8]  J. Komori.  Recent expansions of glacial lakes in the Bhutan Himalayas , 2008 .

[9]  John M. Reynolds,et al.  High-altitude glacial lake hazard assessment and mitigation: a Himalayan perspective , 1998, Geological Society, London, Engineering Geology Special Publications.

[10]  Andreas Kääb,et al.  An assessment procedure for glacial hazards in the Swiss Alps , 2004 .

[11]  Manfred F. Buchroithner,et al.  Identification of glacier motion and potentially dangerous glacial lakes in the Mt. Everest region/Nepal using spaceborne imagery , 2008 .

[12]  Koji Fujita,et al.  Role of supraglacial ponds in the ablation process of a debris-covered glacier in the Nepal Himalayas , 2000 .

[13]  Koji Fujita,et al.  Melt rate of ice cliffs on the Lirung Glacier, Nepal Himalayas, 1996 , 1998 .

[14]  T. Bolch,et al.  Planimetric and volumetric glacier changes in the Khumbu Himal, Nepal, since 1962 using Corona, Landsat TM and ASTER data , 2008 .

[15]  M. Nakawo,et al.  Estimate of ablation rate of glacier ice under a supraglacial debris layer , 1999 .

[16]  C. Duo.  Climate Change in Mt.Qomolangma Region in China during the Last 34 Years , 2006 .

[17]  K. Fujita,et al.  Changes in glaciers in Hidden Valley, Mukut Himal, Nepal Himalayas, from 1974 to 1994 , 1997, Journal of Glaciology.

[18]  John M. Reynolds,et al.  An overview of glacial hazards in the Himalayas , 2000 .

[19]  Q. Dahe,et al.  Evidence for recent climate change from ice cores in the central Himalaya , 2000, Annals of Glaciology.

[20]  R. Kattelmann,et al.  Glacial Lake Outburst Floods in the Nepal Himalaya: A Manageable Hazard? , 2003 .

[21]  K. Chikita.  Topographic effects on the thermal structure of Himalayan glacial lakes : Observations and numerical simulation of wind , 2007 .

[22]  Katrin Röhl,et al.  Characteristics and evolution of supraglacial ponds on debris-covered Tasman Glacier, New Zealand , 2008, Journal of Glaciology.

[23]  N. Takeuchi,et al.  Onset of calving at supraglacial lakes on debris-covered glaciers of the Nepal Himalaya , 2009, Journal of Glaciology.

[24]  K. Chikita,et al.  Hydrodynamics of a Supraglacial Lake and Its Effect on the Basin Expansion: Tsho Rolpa, Rolwaling Valley, Nepal Himalaya , 1999 .

[25]  John J. Clague,et al.  A review of catastrophic drainage of moraine-dammed lakes in British Columbia , 2000 .

[26]  M. Kirkbride.  The temporal significance of transitions from melting to calving termini at glaciers in the central Southern Alps of New Zealand , 1993 .

[27]  A. Sakai,et al.  Expansion of a moraine‐dammed glacial lake, Tsho Rolpa, in Rolwaling Himal, Nepal Himalaya , 2000 .

[28]  Jack E. Dibb,et al.  Maximum Temperature Trends in the Himalaya and Its Vicinity: An Analysis Based on Temperature Records from Nepal for the Period 1971-94 , 1999 .

[29]  D. Benn,et al.  Structural control of englacial drainage systems in Himalayan debris-covered glaciers , 2007 .

[30]  D. Benn,et al.  Calving processes and the dynamics of calving glaciers , 2007 .

[31]  A. Luckman,et al.  Quantification of Everest region glacier velocities between 1992 and 2002, using satellite radar interferometry and feature tracking , 2009, Journal of Glaciology.

[32]  John M. Reynolds,et al.  On the formation of supraglacial lakes on debris- covered glaciers , 2000 .

[33]  D. R. Gurung,et al.  Inventory of Glaciers, Glacial Lakes and Glacial Lake Outburst Floods: Monitoring and Early Warning Systems in the Hindu Kush-Himalayan Region - Bhutan , 2001 .

[34]  K. Fujita,et al.  Recent changes in Imja Glacial Lake and its damming moraine in the Nepal Himalaya revealed by in situ surveys and multi-temporal ASTER imagery , 2009 .

[35]  Adrian Luckman,et al.  Early recognition of glacial lake hazards in the Himalaya using remote sensing datasets , 2007 .

[36]  D. Benn,et al.  Growth and drainage of supraglacial lakes on debris-mantled Ngozumpa Glacier, Khumbu Himal, Nepal , 2001, Journal of Glaciology.

[37]  Katrin Röhl.  Thermo-erosional notch development at fresh-water-calving Tasman Glacier, New Zealand , 2006 .

[38]  T. Watanabe.  Imja Glacier dead-ice melt rates and changes in a supra-glacial lake, 1989-1994, Khumbu Himal, Nepal : Danger of lake drainage , 1995 .

[39]  C. Warren,et al.  Tasman Glacier, New Zealand: 20th-century thinning and predicted calving retreat , 1999 .

[40]  Koji Fujita,et al.  Distribution Characteristics and Energy Balance of Ice Cliffs on Debris-covered Glaciers, Nepal Himalaya , 2002 .

[41]  Douglas W. Burbank,et al.  Toward a complete Himalayan hydrological budget: Spatiotemporal distribution of snowmelt and rainfall and their impact on river discharge , 2010 .

[42]  Jeffrey S. Kargel,et al.  ASTER measurement of supraglacial lakes in the Mount Everest region of the Himalaya , 2002, Annals of Glaciology.

[43]  Koji Fujita,et al.  Formation conditions of supraglacial lakes on debris-covered glaciers in the Himalaya , 2010, Journal of Glaciology.

[44]  L. Owen,et al.  Himalayan glacial sedimentary environments: a framework for reconstructing and dating the former extent of glaciers in high mountains , 2002 .

[45]  N. Glasser,et al.  Morphological and ice-dynamical changes on the Tasman Glacier, New Zealand, 1990–2007 , 2009 .

[46]  Andreas Kääb,et al.  Remote sensing based assessment of hazards from glacier lake outbursts: a case study in the Swiss Alps , 2002 .

[47]  K. Chikita.  Sedimentary effects on the expansion of a Himalayan supraglacial lake , 2001 .

[48]  A. Russell,et al.  Controls on the formation and sudden drainage of glacier-impounded lakes: implications for jökulhlaup characteristics , 1999 .