Results 51 to 60 of about 22,715,285 (355)

A Workflow for the automatic Extraction of Glacier Contours from 4D Point Clouds [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
In this paper, we propose a basic workflow for the automatic extraction of glacier contours from high-resolution multi-temporal 3D point clouds. Based on the hypothesis, that glacier movements cause changes in multi-temporal surface models, glacier ...
S. Isfort, M. Elias, H.-G. Maas
doaj   +1 more source

Intra-annual and intra-seasonal flow dynamics of a High Arctic polythermal valley glacier [PDF]

, 2002
Measurements of surface dynamics on polythermal John Evans Glacier, Nunavut, Canada, over two winter periods and every 7-10 days throughout two melt seasons (June-July 2000, 2001) provide new insight into spatio-temporal patterns of High Arctic glacier ...
Bingham, R.G., Nienow, P.W., Sharp, M., Nienow, Peter W., Sharp, Martin J., Bingham, RG, Nienow, PW, Sharp, MJ, Bingham, Robert George, Bingham, Robert G.   +9 more
core   +1 more source

Including debris cover effects in a distributed model of glacier ablation [PDF]

, 2012
Distributed glacier melt models generally assume that the glacier surface consists of bare exposed ice and snow. In reality, many glaciers are wholly or partially covered in layers of debris that tend to suppress ablation rates.
Reid, Tim, Carenzo, Marco, Brock, Benjamin, Pellicciotti, Francesca   +3 more
core   +1 more source

Community estimate of global glacier mass changes from 2000 to 2023

Nature
Glaciers are indicators of ongoing anthropogenic climate change1. Their melting leads to increased local geohazards2, and impacts marine3 and terrestrial4,5 ecosystems, regional freshwater resources6, and both global water and energy cycles7,8.
Michael Zemp, L. Jakob, I. Dussaillant, S. Nussbaumer, Noel Gourmelen, Sophie Dubber, G. A, Sahra Abdullahi, L. Andreassen, Etienne Berthier, Atanu Bhattacharya, Alejandro Blazquez, Laura F. Boehm Vock, T. Bolch, J. Box, Matthias H. Braun, Fanny Brun, E. Cicero, W. Colgan, N. Eckert, D. Farinotti, C. Florentine, D. Floricioiu, A. Gardner, C. Harig, J. Hassan, R. Hugonnet, M. Huss, T. Jóhannesson, Chia-Chun Liang, Chang-Qing Ke, S. Khan, O. King, M. Kneib, Lukas Krieger, F. Maussion, E. Mattea, R. McNabb, B. Menounos, E. Miles, G. Moholdt, Johan Nilsson, F. Pálsson, Julia Pfeffer, Livia Piermattei, S. Plummer, Andreas Richter, I. Sasgen, Lilian Schuster, Thorsten C. Seehaus, Xiao-Yi Shen, Christian Sommer, T. Sutterley, D. Treichler, I. Velicogna, B. Wouters, H. Zekollari, Whyjay Zheng   +57 more
semanticscholar   +1 more source

Modeling 2m air temperatures over mountain glaciers: Exploring the influence of katabatic cooling and external warming [PDF]

, 2015
Air temperature is one of the most relevant input variables for snow and ice melt calculations. However, local meteorological conditions, complex topography, and logistical concerns in glacierized regions make the measuring and modeling of air ...
J. M. Shea, F. Pellicciotti, Ayala, Alvaro, A. Ayala, Shea, J. M., Pellicciotti, Francesca, Pellicciotti, F., Ayala, A.   +7 more
core   +1 more source

Accelerated Shrinkage of Glaciers in the Altai Mountains From 2000 to 2020

Frontiers in Earth Science, 2022
Mountain glaciers are an important component of the global hydrological cycle. Existing research about glacier changes in the Altai focused on limited regions. Study about recent glacier changes in the entire Altai Mountains is still lacking.
Jiawen Chang, Jiawen Chang, Ninglian Wang, Ninglian Wang, Ninglian Wang, Zhijie Li, Zhijie Li, Daqing Yang   +7 more
doaj   +1 more source

Global glacier changes

, 2008
Changes in glaciers and ice caps provide some of the clearest evidence of climate change, and as such they constitute key variables for early detection strategies in global climate-related observations.
World Glacier Monitoring Service
core   +1 more source

WGMS (2008): global glacier changes: facts and figures [PDF]

, 2008
Changes in glaciers and ice caps provide some of the clearest evidence of climate change, and as such they constitute key variables for early detection strategies in global climate-related observations.
Paul, F, Roer, I, Kääb, A, Haeberli, W, Zemp, Michael; https://orcid.org/, Hoelzle, M   +5 more
core   +2 more sources

Spatiotemporal characteristics of glacier area and length changes in Xizang, China, from 2000 to 2022

International Journal of Digital Earth
Understanding glacier changes is critical for assessing climate impacts, water security, and regional sustainability. Using a visual interpretation method based on Landsat TM/ETM+/OLI imagery, we revised the Randolph Glacier Inventory (RGI) V7.0 dataset ...
Sugang Zhou, Ninglian Wang, Zhijie Li, Jiawen Chang, Yujie Zhang, Xiaojun Yao   +5 more
doaj   +1 more source

Spectral roughness of glaciated bedrock geomorphic surfaces: Implications for glacier sliding [PDF]

, 2000
A microroughness meter (MRM) was used to measure the high-frequency roughness of a number of geomorphic surfaces in the forefield of Glacier de Tsanfleuron, Switzerland.
Martin J. Siegert, Danny McCarroll, Hubbard, B., McCarroll, D., Bryn Hubbard, Siegert, M. J.   +5 more
core   +1 more source