Lagrangian reconstruction of fine-grid sea surface salinity from SMAP and altimetry in the Bay of Bengal

A New Approach to Estimate Ocean Surface Velocity from High-Resolution Surface Water and Ocean Topography (SWOT) Data

This study presents a novel cyclostrophic balance correction method for estimating submesoscale ocean surface currents in the Northern Arabian Sea using surface water and ocean topography (SWOT) mission altimetry. High-resolution Ocean Color Monitor (OCM-3) data from the EOS-06 satellite reveal fine-scale eddies and fi...

Validation of Sea Surface Salinity Products of HY–4A LASMR Based on Argo Observations: Results of First On-Orbit Year

HY–4A is China’s first ocean salinity remote-sensing satellite, launched into orbit in November 2024 and currently in operational service. The LASMR (L-Band Aperture Synthesis Microwave Radiometer) is the L-band synthetic aperture radiometer onboard the HY–4A satellite. This study validates the LASMR Level-2 SSS (sea s...

Enhancing SWOT Geoid Resolution in Regions Characterized by Complex Oceanic Dynamics via the mrCOSTS Method

The advanced 2-D sea surface height (SSH) observations from the surface water and ocean topography (SWOT) satellite have achieved a global average geoid resolution better than 13 km, as estimated from spectral analysis of adjacent single-cycle observations. However, in regions with complex oceanic dynamics (the ocean o...

Observations of seawater temperature and salinity as the main source of information on large-scale ocean currents

Abstract A. S. Sarkisyan developed a diagnostic method in the 1960s, based on the inclusion of annual mean temperature and salinity fields in circulation models, which made it possible to simulate climatic currents in the World Ocean and a number of other marine basins. As observations of seawater temperature and salin...

Assessing the consistency of coastal sea surface height measurements from SWOT altimetry and tide gauges along the U.S. East Coast

In nearshore environments, the limited accuracy of traditional satellite altimetry in monitoring coastal sea-level changes restricts its application. The wide-swath, high-resolution measurements from the Surface Water and Ocean Topography (SWOT) satellite provide a new understanding of coastal sea-level variability. Th...

Wide-swath satellite altimetry and novel subsurface temperature observations improve predictions in a dynamic western boundary current: System optimization and performance