Results 51 to 60 of about 20,031 (212)

3D Atmospheric Imprint of Mesoscale Eddies Driven by the Thermal Feedback in the Gulf Stream Region

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract The 3D imprint of mesoscale ocean eddies on the overlying atmosphere is investigated using coupled ocean‐atmosphere high‐resolution simulation of the Gulf Stream region, distinguishing cyclones and anticyclones. Sea surface temperature (SST) anomalies are predominantly warm for anticyclones and cold for cyclones, driving a Thermal Feedback ...
Alexandre Barboni, Lionel Renault
wiley   +1 more source

Drone Height from Ground Determination Using GNSS-R Based on Dual-Frequency GPS/BDS Signals

Remote Sensing
Conventional techniques to measure drone heights from the ground, including global navigation satellite systems (GNSSs), barometers, acoustic sensors, and LiDAR, are limited by their measurement ranges, an inability to directly obtain the height from the
Li Zhang, Weiwei Qin, Fan Gao, Weijie Kang, Yue Zhu   +4 more
doaj   +1 more source

Evolution of geoids in recent years and its impact on oceanography

Scientia Marina, 2014
Mean surface geostrophic ocean currents may be calculated from the Mean Dynamic Topography (MDT), estimated as the difference between a mean sea surface height (MSS) calculated from radar altimeters and a reference geoid height.
Marco Talone, Marco Meloni, Josep L. Pelegri, Miquel Rosell-Fieschi, Rune Flobergaghen   +4 more
doaj   +1 more source

Assessment of the “Zero-Bias Line” Homogenization Method for Microwave Radiometers Using Sentinel-3A and Sentinel-3B Tandem Phase

Remote Sensing, 2020
The long-term stability of microwave radiometers (MWR) on-board altimetry missions is critical to reduce the uncertainty on the global mean sea level estimate.
Bruno Picard, Ralf Bennartz, Frank Fell, Marie-Laure Frery, Mathilde Siméon, Frank Bordes   +5 more
doaj   +1 more source

Divergent Influences of Oceanic Western Boundary Currents on Weak and Strong Tropical Cyclones

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Tropical cyclones (TCs) in the Northern Hemisphere often cross oceanic western boundary currents (WBCs), yet how these warm currents modulate TC intensity remains unclear. We analyze TCs traversing the Kuroshio and Gulf Stream during 1993–2025 and find that weak TCs respond more favorably than strong TCs.
Wenting Lou, Tongya Liu, Jiacheng Hong, Yi‐Peng Guo, Han Zhang, Dake Chen   +5 more
wiley   +1 more source

Advancing mmWave Altimetry for Unmanned Aerial Systems: A Signal Processing Framework for Optimized Waveform Design

Drones
This research advances millimeter-wave (mmWave) altimetry for unmanned aerial systems (UASs) by optimizing performance metrics within the constraints of inexpensive automotive radars.
Maaz Ali Awan, Yaser Dalveren, Ali Kara, Mohammad Derawi   +3 more
doaj   +1 more source

Is Accurate Synoptic Altimetry Achievable by Means of Interferometric GNSS-R?

Remote Sensing, 2019
This paper evaluates the capability of interferometric global navigation satellite system reflectometry (GNSS-R) to perform sea surface altimetry in a synoptic scenario.
Fran Fabra, Estel Cardellach, Serni Ribó, Weiqiang Li, Antonio Rius, Juan Carlos Arco-Fernández, Oleguer Nogués-Correig, Jaan Praks, Erkka Rouhe, Jaakko Seppänen, Manuel Martín-Neira   +10 more
doaj   +1 more source

Meter‐Scale Roughness of the Lunar Surface

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Small‐scale surface roughness is a key indicator of local geological processes, yet it has not previously been mapped globally on the Moon. We present global meter‐scale surface roughness maps generated from the Lunar Orbiter Laser Altimeter pulses, which record information about surface undulations within the instrument's ∼5 m individual ...
Hephzibah Christopher, Indujaa Ganesh
wiley   +1 more source

Data Synergy between Altimetry and L-Band Passive Microwave Remote Sensing for the Retrieval of Sea Ice Parameters—A Theoretical Study of Methodology

Remote Sensing, 2017
Accurate knowledge of the sea ice parameters, including the thickness and the snow depth over sea ice, are key to both climate change studies and operational forecast in polar regions.
Shiming Xu, Lu Zhou, Jiping Liu, Hui Lu, Bin Wang   +4 more
doaj   +1 more source

How Well Can the Surface Water and Ocean Topography (SWOT) Satellite Mission Observe Irrigation Canals?

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The capability of the Surface Water and Ocean Topography (SWOT) satellite for observing irrigation canals has remained relatively unexplored. Here, we assess SWOT observability of irrigation canal networks across 22 Asian countries using a new confidence level (CL) metric.
Mridul Sharma, Faisal Hossain, Sarath Suresh, Tamlin Pavelsky, Sanchit Minocha, Shahzaib Khan   +5 more
wiley   +1 more source