Global stacked sea surface height profiles from Sentinel-3A Synthetic Aperture Radar Mode (SARM) satellite altimeter data (NCEI Accession 0219900)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 29, 2026 | Last Modified: 2020-09-28T00:00:00.000+00:00

NetCDF file result_s3a_sarm_stack.nc contains longitude, latitude, number of cycles, sigma, and stacked sea surface height records for 770 Sentinel-3A Synthetic Aperture Radar Mode (SARM) satellite altimeter passes. Repeat cycles were aligned to a common position along a synthetic track having 20239 records between +/-81.419 latitude. Stacking is the median sea surface height profile from multiple repeat cycles. Sigma is the expected one sigma error in a single measurement. The number of cycles is the quantity that passed selection criteria and were included in a stack. Repeat cycles 1 to 56 were used.

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accessLevel	non-public
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description	NetCDF file result_s3a_sarm_stack.nc contains longitude, latitude, number of cycles, sigma, and stacked sea surface height records for 770 Sentinel-3A Synthetic Aperture Radar Mode (SARM) satellite altimeter passes. Repeat cycles were aligned to a common position along a synthetic track having 20239 records between +/-81.419 latitude. Stacking is the median sea surface height profile from multiple repeat cycles. Sigma is the expected one sigma error in a single measurement. The number of cycles is the quantity that passed selection criteria and were included in a stack. Repeat cycles 1 to 56 were used.
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identifier	gov.noaa.nodc:0219900
issued	2020-08-31T00:00:00.000+00:00
keyword	[ "0219900", "LATITUDE", "LONGITUDE", "SEA HEIGHT", "satellite sensor - altimeter", "SRAL", "satellite data", "Sentinel-3A", "NOAA National Environmental Satellite, Data, and Information Service", "NOAA Center for Satellite Applications and Research", "World-Wide Distribution", "oceanography", "DOC/NOAA/NESDIS > National Environmental Satellite, Data, and Information Services, NOAA, U.S. Department of Commerce", "DOC/NOAA/NESDIS/STAR > Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce", "EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE HEIGHT", "number_of_cycles", "sigma", "stacked sea surface height", "ALTIMETERS > ALTIMETERS", "Sentinel-3 SRAL > Sentinel-3 SAR Radar Altimeter", "Sentinel-3A > Sentinel-3A", "GEOGRAPHIC REGION > GLOBAL OCEAN", "8XWJH7" ]
landingPage	https://www.ncei.noaa.gov/contact
language	[]
license	https://creativecommons.org/publicdomain/zero/1.0/
modified	2020-09-28T00:00:00.000+00:00
publisher	{ "name": "NOAA National Centers for Environmental Information", "@type": "org:Organization" }
references	[ "https://doi.org/10.1029/2018ea000440", "https://doi.org/10.1007/s11001-016-9293-0", "https://doi.org/10.1080/01490419.2015.1014950", "https://www.star.nesdis.noaa.gov/socd/lsa/AltBathy/LSA_AltBathy_stacking.php" ]
rights	otherRestrictions
spatial	180.0,-81.419,-180.0,81.419
temporal	2016-04-08T00:00:00+00:00/2020-04-05T00:00:00+00:00
title	Global stacked sea surface height profiles from Sentinel-3A Synthetic Aperture Radar Mode (SARM) satellite altimeter data (NCEI Accession 0219900)