SWOT Mission Validation of Sea Surface Height Measurements at Sub‐100 km Scales

Abstract After two decades of development, the Surface Water and Ocean Topography (SWOT) mission launched on 16 December 2022, pioneering the use of Ka‐band Radar Interferometry (KaRIn) for measuring water surface elevation and achieving two‐dimensional altimetry on two 50 km swaths separated by a 20 km nadir gap. Rigorous validation against in situ observations in this study demonstrates that KaRIn achieves enough accuracy to resolve sub‐100 km oceanic processes, with measurement errors 2–4 times smaller than anticipated. These results confirm SWOT's transformative capabilities for advancing oceanographic research and establishing a robust foundation for future applications of the swath altimetry. The results also underscore the innovative advancements in mooring system design, driven by the stringent science requirements of the SWOT mission.

Authors

Institutions

Publication Details

Journal
Geophysical Research Letters
Published
2025-06-06
DOI
https://doi.org/10.1029/2025gl114936
Citations
10
Primary Topic
Spacecraft and Cryogenic Technologies
Type
article
Field-Weighted Citation Impact
49.94

Funders

Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

SWOT Mission Validation of Sea Surface Height Measurements at Sub‐100 km Scales

Robert Pinkel, Uwe Send, Andrew J. Lucas, Lee‐Lueng Fu et al.
10 citations
Geophysical Research Letters
Spacecraft and Cryogenic Technologies
49.94
article

SWOT Mission Validation of Sea Surface Height Measurements at Sub‐100 km Scales

Robert Pinkel, Uwe Send, Andrew J. Lucas, Lee‐Lueng Fu, Luke Kachelein, J. Thomas Farrar, Matthias Lankhorst, Bruce Haines, Scott Stalin, Oscar Schofield, Jinbo Wang, Christian Meinig
article en
10 citations

Abstract

Abstract After two decades of development, the Surface Water and Ocean Topography (SWOT) mission launched on 16 December 2022, pioneering the use of Ka‐band Radar Interferometry (KaRIn) for measuring water surface elevation and achieving two‐dimensional altimetry on two 50 km swaths separated by a 20 km nadir gap. Rigorous validation against in situ observations in this study demonstrates that KaRIn achieves enough accuracy to resolve sub‐100 km oceanic processes, with measurement errors 2–4 times smaller than anticipated. These results confirm SWOT's transformative capabilities for advancing oceanographic research and establishing a robust foundation for future applications of the swath altimetry. The results also underscore the innovative advancements in mooring system design, driven by the stringent science requirements of the SWOT mission.

Geophysical Research LettersVol. 52(11)
Rutgers, The State University of New Jersey (US), Jet Propulsion Laboratory (US), Pacific Northwest National Laboratory (US), Scripps Institution of Oceanography (US), NOAA Pacific Marine Environmental Laboratory (US), University of California San Diego (US), Woods Hole Oceanographic Institution (US), Texas A&M University (US)
California Institute of Technology, Jet Propulsion Laboratory, Office of Naval Research
Openalex Percentile: Top 0%
Spacecraft and Cryogenic Technologies
49.94
DOIOpen Access PDFOpenAlex
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.