Results 51 to 60 of about 431,526 (216)

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

Improving the Estimation of Lake Ice Thickness with High-Resolution Radar Altimetry Data

Remote Sensing
Lake ice thickness (LIT) is a sensitive indicator of climate change, identified as a thematic variable of Lakes as an Essential Climate Variable (ECV) by the Global Climate Observing System (GCOS).
Anna Mangilli, C. Duguay, Justin Murfitt, Thomas Moreau, S. Amraoui, Jaya Sree Mugunthan, Pierre Thibaut, Craig Donlon   +7 more
semanticscholar   +1 more source

Multisurface Retracker for Swath Processing of Interferometric Radar Altimetry [PDF]

IEEE Geoscience and Remote Sensing Letters, 2019
Swath mode processing of CryoSat-2 Synthetic Aperture Radar Interferometric (SARIn) mode has been used to monitor elevation of areas with complex topography such as over ice sheet and ice cap margins. Swath processing relies on an accurate measure of the angle of arrival of the measured echo and, therefore, requires custom strategies in order to ...
Albert Garcia-Mondéjar, Noel Gourmelen, Maria José Escorihuela, Mònica Roca, Andrew Shepherd, Stephen Plummer   +5 more
openaire   +1 more source

Floods From Space: How Remote Sensing, AI, and Cloud Platforms Are Reshaping Disaster Risk Reduction

Journal of Flood Risk Management, Volume 19, Issue 3, September 2026.
ABSTRACT Flooding remains one of the most damaging climate‐related hazards globally, yet flood remote sensing has historically developed largely along sensor‐specific pathways. This review addresses the need for a systematic and decision‐oriented synthesis of how space‐borne remote sensing has evolved toward integrated flood monitoring and disaster ...
Ricky Anak Kemarau, Nurfashareena Muhamad, Aida Soraya Shamsuddin, Zulfaqar Sa'adi, Zaini Sakawi, Oliver Valentine Eboy, Nik Norliati Fitri Md Nor   +6 more
wiley   +1 more source

Global River Radar Altimetry Time Series (GRRATS): new river elevation earth science data records for the hydrologic community

Earth System Science Data, 2019
. The capabilities of radar altimetry to measure inland water bodies are well established, and several river altimetry datasets are available. Here we produced a globally distributed dataset, the Global River Radar Altimeter Time Series (GRRATS), using ...
S. Coss, M. Durand, Y. Yi, Yuanyuan Jia, Qingshi Guo, S. Tuozzolo, C. Shum, G. Allen, S. Calmant, T. Pavelsky   +9 more
semanticscholar   +1 more source

Using Drones for Large Mammal Monitoring

Mammal Review, Volume 56, Issue 3, September 2026.
Drones were used to obtain video data on animals and locations and distance from the midline was automatically determined by our pipeline so that the input for Distance sampling is generated. ABSTRACT Introduction The emergence of drones has profoundly transformed the field of large mammal monitoring, offering unprecedented capabilities for data ...
Chaim Chai Elchik, Michael Hudson, Sam Buckland, Steven Longmore, Serge Wich   +4 more
wiley   +1 more source

Synergistic Use of Single-Pass Interferometry and Radar Altimetry to Measure Mass Loss of NEGIS Outlet Glaciers between 2011 and 2014

Remote Sensing, 2020
Mass balances of individual glaciers on ice sheets have been previously reported by forming a mass budget of discharged ice and modelled ice sheet surface mass balance or a complementary method which measures volume changes over the glaciated area that ...
L. Krieger, Undine Strößenreuther, V. Helm, D. Floricioiu, M. Horwath   +4 more
semanticscholar   +1 more source

Satellite Altimetry Reveals an Eddy Train Along the Ross Sea Shelf Break

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Oceanic circulation along the Antarctic shelf break regulates heat and material exchanges between the continental shelf and the open ocean, playing a crucial role in ice shelf melting and global overturning circulation. However, the circulation remains poorly understood due to limited observations.
Xin Wu, Xianxian Han, Zhaomin Wang, Shaojun Zheng, Chengyan Liu   +4 more
wiley   +1 more source

The SDUST2022GRA global marine gravity anomalies recovered from radar and laser altimeter data: contribution of ICESat-2 laser altimetry

Earth System Science Data
. The global marine gravity anomaly model is predominantly recovered from along-track radar altimeter data. Despite significant advances in gravity anomaly recovery, the improvement of the gravity anomaly model remains constrained by the absence of cross-
Zhen Li, J. Guo, Chengcheng Zhu, Xin Liu, Cheinway Hwang, Sergey Lebedev, X. Chang, A. Soloviev, Heping Sun   +8 more
semanticscholar   +1 more source