H
Holger Frey
Researcher at University of Zurich
Publications - 61
Citations - 4818
Holger Frey is an academic researcher from University of Zurich. The author has contributed to research in topics: Glacier & Glacial lake. The author has an hindex of 25, co-authored 58 publications receiving 3729 citations. Previous affiliations of Holger Frey include University of Geneva.
Papers
More filters
Journal ArticleDOI
The state and fate of Himalayan glaciers
Tobias Bolch,Tobias Bolch,Anil V. Kulkarni,Andreas Kääb,Christian Huggel,Christian Huggel,Frank Paul,J G Cogley,Holger Frey,Holger Frey,Jeffrey S. Kargel,Koji Fujita,M. Scheel,M. Scheel,Samjwal Ratna Bajracharya,Markus Stoffel,Markus Stoffel +16 more
TL;DR: The contemporary evolution of glaciers in the Himalayan region is reviewed, including those of the less well sampled region of the Karakoram to the Northwest, in order to provide a current, comprehensive picture of how they are changing.
Journal ArticleDOI
On the accuracy of glacier outlines derived from remote-sensing data
Frank Paul,Nicholas E. Barrand,S. Baumann,Etienne Berthier,Tobias Bolch,Kimberly A. Casey,Holger Frey,Sharad Joshi,Vladimir Konovalov,R. Le Bris,Nico Mölg,Gennady Nosenko,Christopher Nuth,Allen Pope,Adina Racoviteanu,Philipp Rastner,Bruce Raup,K. Scharrer,S. Steffen,Solveig H. Winsvold +19 more
TL;DR: In this paper, the authors compare the results of a single and multiple digitization by different or the same analysts on very high-1 m and medium-resolution (30 m) remote-sensing data, against each other and to glacier outlines derived from automated classification of Landsat Thematic Mapper data.
Journal ArticleDOI
Recommendations for the compilation of glacier inventory data from digital sources
Frank Paul,Roger G. Barry,J G Cogley,Holger Frey,Wilfried Haeberli,Atsumu Ohmura,C. S. L. Ommanney,Bruce Raup,Andrés Rivera,Michael Zemp +9 more
TL;DR: In this article, the authors proposed a grid-based statistical method for calculating the inventory data for the Global Land Ice Monitoring from Space (GLIMS) database, based on the World Glacier Inventory.
Journal ArticleDOI
A massive rock and ice avalanche caused the 2021 disaster at Chamoli, Indian Himalaya
Dan H. Shugar,Mylène Jacquemart,Mylène Jacquemart,Mylène Jacquemart,David Shean,Shashank Bhushan,Kshitiz Upadhyay,Ashim Sattar,Wolfgang Schwanghart,Sara K. McBride,M. Van Wyk de Vries,Martin Mergili,Martin Mergili,Adam Emmer,César Deschamps-Berger,Mark McDonnell,Rakesh Bhambri,Simon Allen,Simon Allen,Etienne Berthier,Jonathan L. Carrivick,John J. Clague,M. Dokukin,Stuart Dunning,Holger Frey,Simon Gascoin,Umesh K. Haritashya,Christian Huggel,Andreas Kääb,Jeffrey S. Kargel,J. L. Kavanaugh,Pascal G. Lacroix,David N. Petley,Summer Rupper,Mohd Farooq Azam,Simon J. Cook,Simon J. Cook,A. P. Dimri,Mats Eriksson,Daniel Farinotti,Daniel Farinotti,Joel Fiddes,Kaushal Raj Gnyawali,Sandy Harrison,M. Jha,Michele Koppes,Abhishek Kumar,Silvan Leinss,Ulfat Majeed,Suraj Mal,Arnab Muhuri,Arnab Muhuri,Jeannette Noetzli,Frank Paul,Irfan Rashid,Kalachand Sain,Jakob F. Steiner,Jakob F. Steiner,F. Ugalde,Cameron S. Watson,Matthew J. Westoby +60 more
TL;DR: In this paper, an analysis of satellite imagery, seismic records, numerical model results, and eyewitness videos reveals that ~27x106 m3 of rock and glacier ice collapsed from the steep north face of Ronti Peak.
Journal ArticleDOI
Estimating the volume of glaciers in the Himalayan–Karakoram region using different methods
Holger Frey,Horst Machguth,Matthias Huss,Christian Huggel,Samjwal Ratna Bajracharya,Tobias Bolch,Tobias Bolch,Anil V. Kulkarni,Andreas Linsbauer,Andreas Linsbauer,Nadine Salzmann,Nadine Salzmann,Markus Stoffel +12 more
TL;DR: In this article, different existing methodologies are used to estimate the ice reserves: three area-volume relations, one slope-dependent volume estimation method, and two ice-thickness distribution models are applied to a recent, detailed, and complete glacier inventory of the Himalayan-Karakoram (HK) region, spanning over the period 2000-2010 and revealing an ice coverage of 40 775 km(2).