Results 11 to 20 of about 582 (245)

Analysing the suitability of radiometrically calibrated full-waveform lidar data for delineating Alpine rock glaciers [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
With full-waveform (FWF) lidar systems becoming increasingly available from different commercial manufacturers, the possibility for extracting physical parameters of the scanned surfaces in an area-wide sense, as addendum to their geometric ...
A. Roncat, M. Wieser, C. Briese, C. Briese, E. Bollmann, R. Sailer, C. Klug, N. Pfeifer   +7 more
doaj   +4 more sources

An enhanced index for debris-covered glacier boundary extraction, with emphasis on low-activity glaciers, using time-series SAR imagery

International Journal of Digital Earth
Accurate delineation of glacier boundaries is essential for monitoring glacier changes. Debris-covered glaciers often resemble the textures of their surrounding terrain, making boundary extraction especially challenging.
Xiaowen Wang, Qiao Liu, Can Yang
exaly   +3 more sources

Deep Active Contour Models for Delineating Glacier Calving Fronts [PDF]

IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022
This work has been accepted by IEEE TGRS for ...
Heidler, Konrad, Mou, Lichao, Loebel, Erik, Scheinert, Mirko, Lefèvre, Sébastien, Zhu, Xiao Xiang   +5 more
openaire   +3 more sources

A new global gridded glacier dataset based on the Randolph Glacier Inventory version 6.0

Journal of Glaciology, 2021
Gridded glacier datasets are essential for various glaciological and climatological research because they link glacier cover with the corresponding gridded meteorological variables.
Yaojun Li, Fei Li, Donghui Shangguan, Yongjian Ding   +3 more
doaj   +1 more source

Which glaciers are the largest in the world?

Journal of Glaciology, 2023
Glacier monitoring has been internationally coordinated for more than 125 years. Despite this long history, there is no authoritative answer to the popular question: ‘Which glaciers are the largest in the world?’ Here, we present the first systematic ...
Ann Windnagel, Regine Hock, Fabien Maussion, Frank Paul, Philipp Rastner, Bruce Raup, Michael Zemp   +6 more
doaj   +1 more source

Assessing Glacier Boundaries in the Ala-Archa Valley of Kyrgyzstan by Using Sentinel-1 SAR Dataset and High-Resolution UAV Imagery

Remote Sensing, 2023
The significant retreat of glaciers in terms of climate change compels researchers to increase the frequency of studies regarding the transformations occurring in glacier boundaries. In this study, we provided glacier area delineation of Ala-Archa valley
Emilbek Zholdoshbekov, Murataly Duishonakunov, Qingyun Du, Mihai Voda   +3 more
doaj   +1 more source

Glacier area and volume changes of Hidden Valley, Mustang, Nepal from ~1980s to 2010 based on remote sensing [PDF]

Proceedings of the International Association of Hydrological Sciences, 2015
Glaciers are one of the important natural resources of freshwater and sources of water for hydropower, agriculture and drinking whenever the water is scarce.
L. Lama, R. B. Kayastha, S. B. Maharjan, S. R. Bajracharya, M. B. Chand, P. K. Mool   +5 more
doaj   +1 more source

Glacier changes over the past 144 years at Alexandra Fiord, Ellesmere Island, Canada

Journal of Glaciology, 2021
In this study, we use aerial photographs, satellite imagery and field observations to quantify changes in the area, terminus length, snowline elevation and surface elevation of eight glaciers in the Alexandra Fiord region, eastern Ellesmere Island ...
Allison N. Curley, William H. Kochtitzky, Benjamin R. Edwards, Luke Copland   +3 more
doaj   +1 more source

Spatial distribution and characteristics of Andean ice masses in Argentina: results from the first National Glacier Inventory

Journal of Glaciology, 2020
Glaciers and the periglacial environment in Argentina have been protected by the Law since 2010. This legislation required the development of the first National Glacier Inventory (NGI), which was officially presented in May 2018 and based on satellite ...
Laura Zalazar, Lidia Ferri, Mariano Castro, Hernán Gargantini, Melisa Gimenez, Pierre Pitte, Lucas Ruiz, Mariano Masiokas, Gustavo Costa, Ricardo Villalba   +9 more
doaj   +1 more source

An automatic approach to delineate the cold–temperate transition surface with ground-penetrating radar on polythermal glaciers [PDF]

Annals of Glaciology, 2014
AbstractGround-penetrating radar has been widely used to map the thermal structure of polythermal glaciers. Hitherto, the cold–temperate transition surface (CTS) in radargrams has been identified by a labour-intensive and subjective manual picking method. We introduce a new automatic approach for picking the CTS that uses the difference in signal power
Clemens Schannwell, Tavi Murray, Bernd Kulessa, Alessio Gusmeroli, Albane Saintenoy, Peter Jansson   +5 more
openaire   +3 more sources