DATA
Integrated Multi-Mission Ocean Altimeter Data for Climate Research complete time series Version 4.2
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DOI
10.5067/ALTTS-TJ142
Short Name
MERGED_TP_J1_OSTM_OST_ALL_V42
Description
This dataset contains along track geo-referenced Sea Surface Height Anomalies (SSHA) from TOPEX/Poseidon, Jason-1, OSTM/Jason-2 and Jason-3 (depending on time period) merged onto a single mean reference orbit. All biases and cross-calibrations have been applied to the data so SSHA are consistent between satellites to form a single climate data record. Altimeter data from the multi-mission Geophysical Data Records (GDRs) are interpolated to a common reference orbit facilitating direct time series analysis of the geo-referenced SSH. However this product does not use the TOPEX internal calibration-mode range correction. This is the main difference between version 4 and version 4.2. More information on this calibration can be found at Beckley et al. 2017 DOI 10.1002/2017JC013090. The data are in netCDF format . The data start at September 1992. The newest data are appended to the file quarterly.
Version
4.2
Measurement
Oceans
› Sea Surface Topography
› Sea Surface Height
Processing Level
2
Coverage
Global
Northernmost Latitude
66.0
Southernmost Latitude
-66.0
Westernmost Longitude
0.0
Easternmost Longitude
360.0
Time Span(s)
September 25, 1992 to
Present
Resolution
Spatial Resolution
11.2 km (Along) x 5.1 km (Across)
Projection
-
Platform/Sensor
JASON-1/POSEIDON-2, JASON-1/JASON-1 Microwave Radiometer, TOPEX/POSEIDON/ALT (TOPEX), TOPEX/POSEIDON/SSALT, TOPEX/POSEIDON/TMR, OSTM/JASON-2/POSEIDON-3, OSTM/JASON-2/AMR, JASON-3/POSEIDON-3B
Project
Making Earth Science Data Records for Use in Research Environments
(MEaSUREs)
Data Provider
PO.DAAC
