Reconstructed Sea Level Version 1
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13 Publications Cited this Dataset
Citation metrics available for years (2014-2019)
DOI10.5067/RECSL-000V1
Short NameRECON_SEA_LEVEL_OST_L4_V1
DescriptionThe Reconstructed Sea Level dataset contains sea level anomalies derived from satellite altimetry and tide gauges. The satellite altimetric record provides accurate measurements of sea level with near-global coverage, but it has a relatively short time span, since 1993. Tide gauges have measured sea level over the last 200 years, with some records extending back to 1807, but they only provide regional coverage, not global. Combining satellite altimetry with tide gauges, using a technique known as sea level reconstruction, results in a dataset with the record length of the tide gauges and the near-global coverage of satellite altimetry. Cyclostationary empirical orthogonal functions (CSEOFs), derived from satellite altimetry, are combined with historical sea level measurements from tide gauges to create the Reconstructed Sea Level dataset spanning from 1950 through 2009. Combining the altimetric and tide gauge records alleviates the difficulties caused by the short record length and poor spatial distribution of the satellite altimetry and tide gauges, respectively. Previous sea level reconstructions have utilized empirical orthogonal functions (EOFs) as basis functions, but by using CSEOFs and by addressing other aspects of the reconstruction procedure, an alternative sea level reconstruction can be computed. The resulting reconstructed sea level dataset has weekly temporal resolution and half-degree spatial resolution. For specific information on the algorithm and how the CSEOFs are applied to the tide gauge data please see Hamlington et al. 2011.
Version1
Dataset TypeCOMPLETE
MeasurementOCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT
Processing Level4
CoverageRegion: GLOBAL
North Bounding Coordinate: 90 degrees
South Bounding Coordinate: -90 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 1950-Jan-03 to 2009-Jun-27
Granule Time Span: 1950-Jan-03 to 2009-Jun-27
ResolutionSpatial Resolution: 0.5 degrees (Latitude) x 0.5 degrees (Longitude)
Temporal Resolution: 7 Day
Platform/Sensor
OSTM/JASON-2
Platform
Name: Ocean Surface Topography Mission/Jason-2 (OSTM/JASON-2)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
/
AMR
SENSOR
Name: Advanced Microwave Radiometer (AMR)

OSTM/JASON-2
Platform
Name: Ocean Surface Topography Mission/Jason-2 (OSTM/JASON-2)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
/
POSEIDON-3
SENSOR
Name: OSTM/Jason-2 RADAR alitmieter (POSEIDON-3)
Swath Width: 5.1 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

Jason-1 Geodetic
Platform
Name: Jason-1 Geodetic (Jason-1 Geodetic)
Orbit Period: 99999.0 minutes
Inclination Angle: 66.15 degrees
/
JASON-1 Microwave Radiometer
SENSOR
Name: JASON-1 MICROWAVE RADIOMETER (JASON-1 Microwave Radiometer)
Swath Width: 22.9 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

Jason-1 Geodetic
Platform
Name: Jason-1 Geodetic (Jason-1 Geodetic)
Orbit Period: 99999.0 minutes
Inclination Angle: 66.15 degrees
/
POSEIDON-2
SENSOR
Name: JASON-1 RADAR ALTIMETER (POSEIDON-2)

JASON-1
Platform
Name: JASON-1 (JASON-1)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
/
JASON-1 Microwave Radiometer
SENSOR
Name: JASON-1 MICROWAVE RADIOMETER (JASON-1 Microwave Radiometer)
Swath Width: 22.9 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

JASON-1
Platform
Name: JASON-1 (JASON-1)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
/
POSEIDON-2
SENSOR
Name: JASON-1 RADAR ALTIMETER (POSEIDON-2)

TOPEX/POSEIDON
Platform
Name: Topography Experiment/Poseidon (TOPEX/POSEIDON)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
/
TMR
SENSOR
Name: TOPEX MICROWAVE RADIOMETER (TMR)
Swath Width: 5.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

TOPEX/POSEIDON
Platform
Name: Topography Experiment/Poseidon (TOPEX/POSEIDON)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
/
SSALT
SENSOR
Name: POSEIDON Solid State Radar Altimeter (SSALT)
Swath Width: 5.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectResearch Opportunities in Space and Earth Science (ROSES)
Data ProviderPublisher: CCAR
Creator: CCAR, University of Colorado, Boulder
Release Place: NASA/JPL/PODAAC
Release Date: 2013-Jun-11

Keyword(s)SSHA, SSH, SLA, Sea Surface Height, Sea Level, OST, Reconstruction
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
PUBLICATIONS
DATA CITATION POLICY
Citation CCAR, University of Colorado, Boulder. 2013. RECON_SEA_LEVEL_OST_L4_V1. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/RECSL-000V1

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For more information see Data Citations and Acknowledgments.

Journal Reference Hamlington, B. D., Leben, R. R., Strassburg, M. W. and Kim, K.-Y. (2014), Cyclostationary empirical orthogonal function sea-level reconstruction. Geoscience Data Journal. doi: 10.1002/gdj3.6

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