Results 31 to 40 of about 624,911 (207)

Coincident cloud observations by altimetry and radiometry [PDF]

, 2004
There are many different sensors that can be used for studies of clouds or rain. However, it is only with Envisat that a dual-frequency altimeter has been comanifested with a high-precision infra-red radiometer. This paper is the first to demonstrate the
Quartly, G., Poulsen, C.
core   +2 more sources

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

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

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

Synergy between in situ and altimetry data to observe and study Northern Current variations (NW Mediterranean Sea) [PDF]

Ocean Science, 2019
During the last 15 years, substantial progress has been achieved in altimetry data processing, now providing data with enough accuracy to illustrate the potential of these observations for coastal applications.
A. Carret, F. Birol, C. Estournel, B. Zakardjian, P. Testor   +4 more
doaj   +1 more source

Accuracy Evaluation of Altimeter-Derived Gravity Field Models in Offshore and Coastal Regions of China

Frontiers in Earth Science, 2021
Satellite radar altimetry has made unique contributions to global and coastal gravity field recovery. This paper starts with a general introduction followed by the progress of satellite radar altimetry technology.
Qianqian Li, Qianqian Li, Lifeng Bao, Lifeng Bao, Yong Wang, Yong Wang   +5 more
doaj   +1 more source

Assessment of DUACS Sentinel-3A Altimetry Data in the Coastal Band of the European Seas: Comparison with Tide Gauge Measurements

Remote Sensing, 2020
The quality of the Data Unification and Altimeter Combination System (DUACS) Sentinel-3A altimeter data in the coastal area of the European seas is investigated through a comparison with in situ tide gauge measurements.
Antonio Sánchez-Román, Ananda Pascual, Marie-Isabelle Pujol, Guillaume Taburet, Marta Marcos, Yannice Faugère   +5 more
doaj   +1 more source

Analysis of GNSS-R Code-Level Altimetry Using QZSS C/A, L1C, and BDS B1C Signals and Their Combinations in a Coastal Experiment

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The fully completed Quasi-Zenith Satellite System (QZSS) and BeiDou Navigation Satellite System (BDS-3) can provide higher precision code observations owing to their advanced signal modulation.
Nazi Wang, Kaifei He, Fan Gao, Ti Chu, Jinhua Hou, Tianhe Xu   +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