Results 61 to 70 of about 14,819 (224)
Envisat Ocean Altimetry Performance Assessment and Cross-calibration
Sensors, 2006 Nearly three years of Envisat altimetric observations over ocean are available inGeophysical Data Record (GDR) products. The quality assessment of these data is routinelyperformed at the CLS Space Oceanography Division in the frame of the CNES Segment ...
Pierre Femenias +4 more
doaj +1 more source
Diagnosing Submesoscale Divergence From Sea Surface Height
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract The Surface Water and Ocean Topography satellite mission now delivers global sea surface height (SSH) observations at scales fine enough to resolve submesoscale eddies (<50 km). At these scales, the traditional geostrophic approximation, commonly used to infer surface currents from SSH, no longer holds.
Hector S. Torres
wiley +1 more source
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
Drone Height from Ground Determination Using GNSS-R Based on Dual-Frequency GPS/BDS Signals
Remote SensingConventional 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 +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 +4 more
doaj +1 more source
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 +5 more
doaj +1 more source
On the Tropical Nature of an Intense Mediterranean Cyclone in the Ocean‐Atmosphere System
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.Abstract The Mediterranean basin hosts a large number of cyclones every year. Among them, some rare cases named medicanes present similarities with tropical cyclones but their dynamical characteristics are debated. The ocean‐atmosphere dynamics of Medicane Ianos (2020) are studied here through km‐scale fully coupled ocean‐wave‐atmosphere simulations ...
Sophia E. Brumer +8 more
wiley +1 more source
DronesThis 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 +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 +10 more
doaj +1 more source
A Strictly Geostrophic Product of Sea‐Surface Velocities From the SWOT Fast‐Sampling Phase
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract While geostrophy remains the simplest and most practical balance to extract velocity information from sea‐surface height anomaly (SSHa), confusions remain within the oceanographic community to what extent this balance can be applied to altimetric observations with the launch of the Surface Water and Ocean Topography (SWOT) satellite. Given the
Takaya Uchida +6 more
wiley +1 more source