Results 51 to 60 of about 436,480 (263)

Selection of the key earth observation sensors and platforms focusing on applications for Polar Regions in the scope of Copernicus system 2020-2030 [PDF]

, 2019
An optimal payload selection conducted in the frame of the H2020 ONION project (id 687490) is presented based on the ability to cover the observation needs of the Copernicus system in the time period 2020–2030.
Camps Carmona, Adriano José, Cote, Judith, Hyuk, Park, Lancheros Sepulveda, Estefany Maria, Pierotti, Stéphane, Rodríguez, Pedro, Tonetti, Stefania   +6 more
core   +2 more sources

A Coastal Experiment for GNSS-R Code-Level Altimetry Using BDS-3 New Civil Signals

Remote Sensing, 2021
High temporal and spatial resolutions are the key advantages of the global navigation satellites system-reflectometry (GNSS-R) technique, while low precision and instabilities constrain its development.
Fan Gao, Tianhe Xu, Xinyue Meng, Nazi Wang, Yunqiao He, Baojiao Ning   +5 more
doaj   +1 more source

Radar Altimetry Aids Managing Gauge Networks

Water Resources Management, 2014
The hydrological observation network in the Amazon basin is made of conventional rainfall and water level stations presently maintained by the Agencia Nacional de Aguas (ANA), the National Agency for Waters. The water level network has long been plagued by difficulties associated with spatial coverage, timely delivery and data errors.
da Silva, J. S., Calmant, S., Seyler, F., Moreira, D. M., Oliveira, D., Monteiro, A.   +5 more
openaire   +2 more sources

Radar altimetry for the detection of ship traffic: an improved byproduct of satellite radar altimetry

, 2023
The detection of vessels is considered an attractive byproduct of satellite radar altimetry, because it may complement the conventional tracking systems with the possibility to build long-term global statistics of ship traffic based on relatively small and manageable datasets of freely available data.
Scozzari A, Grasso R
openaire   +2 more sources

Rapid submarine ice melting in the grounding zones of ice shelves in West Antarctica. [PDF]

, 2016
Enhanced submarine ice-shelf melting strongly controls ice loss in the Amundsen Sea embayment (ASE) of West Antarctica, but its magnitude is not well known in the critical grounding zones of the ASE's major glaciers.
Khazendar, Ala, Mouginot, Jeremie, Rignot, Eric, Scheuchl, Bernd, Schodlok, Michael P, Schroeder, Dustin M, Seroussi, Helene, Sutterley, Tyler C, Velicogna, Isabella   +8 more
core   +1 more source

Impact of Surface Soil Moisture Variations on Radar Altimetry Echoes at Ku and Ka Bands in Semi-Arid Areas

Remote Sensing, 2018
Radar altimetry provides information on the topography of the Earth surface. It is commonly used for the monitoring not only sea surface height but also ice sheets topography and inland water levels.
Christophe Fatras, Pierre Borderies, Frédéric Frappart, Eric Mougin, Denis Blumstein, Fernando Niño   +5 more
doaj   +1 more source

Combining multisource satellite data to estimate storage variation of a lake in the Rift Valley Basin, Ethiopia

International Journal of Applied Earth Observations and Geoinformation, 2020
Integration of remote sensing data sets from multiple satellites is tested to simulate water storage variation of Lake Ziway, Ethiopia for the period 2009-2018. Sixty Landsat ETM+/OLI images served to trace temporal variation of lake surface area using a
Wegayehu Asfaw, Alemseged Tamiru Haile, Tom Rientjes   +2 more
doaj   +1 more source

Elevation Changes of the Antarctic Ice Sheet from Joint Envisat and CryoSat-2 Radar Altimetry

Remote Sensing, 2020
The elevation changes of ice sheets have been recognized as an essential climate variable. Long-term time series of these changes are an important parameter to understand climate change, and the longest time-series of ice sheet elevation changes can be ...
Baojun Zhang, Zemin Wang, Quanming Yang, Jingbin Liu, J. An, Fei Li, Tingting Liu, H. Geng   +7 more
semanticscholar   +1 more source

Satellite altimetry and operational oceanography: from Jason-1 to SWOT [PDF]

Ocean Science
The development and evolution of satellite altimetry and operational oceanography are very closely linked. By providing all weather, global, and real-time observations of sea level, a key variable to constrain ocean analysis and forecasting systems ...
P.-Y. Le Traon, P.-Y. Le Traon, G. Dibarboure, J.-M. Lellouche, M.-I. Pujol, M. Benkiran, M. Drevillon, Y. Drillet, Y. Faugère, E. Remy   +9 more
doaj   +1 more source

Observing the Near‐Surface Properties of the Greenland Ice Sheet

Geophysical Research Letters, 2023
Spaceborne radar altimetry over ice sheets has exclusively focused on assessing volume changes through changes in surface elevation. For use in mass balance calculations, these measurements are supplemented with surface property information derived from ...
K. M. Scanlan, A. Rutishauser, S. B. Simonsen   +2 more
doaj   +1 more source