Integrated Multi-Mission Ocean Altimeter Data for Climate Research Version 5.1

(MERGED_TP_J1_OSTM_OST_CYCLES_V51)

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Version	5.1
Processing Level	2
Start/Stop Date	1992-Sep-25 to Present
Short Name	MERGED_TP_J1_OSTM_OST_CYCLES_V51
Description	This dataset contains along track Sea Surface Height Anomalies (SSHA) for individual 10-day cycles from the TOPEX/Poseidon, Jason-1, OSTM/Jason-2, and Jason-3 missions geo-referenced to a mean reference orbit. Altimeter data from the multi-mission Geophysical Data Records (GDRs) have been interpolated to a common reference orbit with biases and cross-calibrations applied so that the derived SSHA are consistent between satellites to form a single homogeneous climate data record. Version 5.1 updates include the integration of Jason-3 GDR_F data, and the application of revised (GDR_F standard) internal tides and pole tide across missions. The data are in netCDF format and start in September 1992. Data extensions are appended to the file quarterly. More information on data processing standards can be found in the v5.1 User Handbook (Integrated Multi-Mission Ocean Altimeter Data for Climate Research TOPEX/Poseidon, Jason-1, 2, & 3 Users Handbook: https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/merged_alt/open/L2/TP_J1_OSTM/docs/v100721.version5.1multialthandbook.pdf ). This collection is the same data as https://doi.org/10.5067/ALTTS-TJA51 but with individual cycles saved in separate NetCDF files.
DOI	10.5067/ALTCY-TJA51
Measurement	OCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT
Swath Width	5.1 km
Platform/Sensor	OSTM/JASON-2 Platform Name: Joint Altimetry Satellite Oceanography Network - 2 (OSTM/JASON-2) / AMR SENSOR Name: Advanced Microwave Radiometer (AMR) OSTM/JASON-2 Platform Name: Joint Altimetry Satellite Oceanography Network - 2 (OSTM/JASON-2) / POSEIDON-3 SENSOR Name: JASON-2 RADAR ALTIMETER (POSEIDON-3) JASON-1 Platform Name: Joint Altimetry Satellite Oceanography Network - 2 (JASON-1) / JASON-1 Microwave Radiometer SENSOR Name: JASON-1 Microwave Radiometer (JASON-1 Microwave Radiometer) JASON-1 Platform Name: Joint Altimetry Satellite Oceanography Network - 2 (JASON-1) / POSEIDON-2 SENSOR Name: JASON-1 RADAR ALTIMETER (POSEIDON-2) TOPEX/POSEIDON Platform Name: Ocean Topography Experiment (TOPEX/POSEIDON) / TMR SENSOR Name: TOPEX Microwave Radiometer (TMR) JASON-3 Platform Name: Joint Altimetry Satellite Oceanography Network - 3 (JASON-3) / POSEIDON-3B SENSOR Name: Poseidon-3B Altimeter (POSEIDON-3B) Show More
Project	Making Earth System Data Records for Use in Research Environments (MEaSUREs)
Data Provider	Publisher: NASA's Goddard Space Flight Center Creator: Beckley, B.; Zelensky, N.P.; Holmes, S.A.; Lemoine, F.G.; Ray, R.D.; Mitchum, G.T.; Desai, S.; Brown, S.T. Release Place: JPL Release Date: 2022-Mar-24
Format	netCDF-4
Keyword(s)	SSHA, SSH, sea surface height, sea surface height anomalies, GSFC, MEaSUREs-SSH, v5.1, version 5.1

Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov

Coverage Region: GLOBAL North Bounding Coordinate: 66 degrees South Bounding Coordinate: -66 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 1992-Sep-25 to Present Swath Width: 5.1 km Projection Projection Type: Satellite native along-track Projection Detail: Geolocation information included for each pixel Ellipsoid: WGS 84

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Browse Granule Listing
https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2204129664-POCLOUD
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https://search.earthdata.nasa.gov/search/granules?p=C2204129664-POCLOUD
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us-west-2
Bucket/Object Prefix: Protected buckets contain the data files for a given collection. Protected simply means users must log in to Earthdata Login before gaining access to contents within that S3 Bucket. Please use the S3Credential endpoint to gain an Earthdata login token for use in S3 Access. Public buckets, in contrast, house metadata such as checksums, imagery, and metadata files and the like. A user can access public buckets and these types of files without logging in to Earthdata Login. Most of the time, you'll want to access the protected bucket Information
podaac-ops-cumulus-protected/MERGED_TP_J1_OSTM_OST_CYCLES_V51/
podaac-ops-cumulus-public/MERGED_TP_J1_OSTM_OST_CYCLES_V51/
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TOOLS AND SERVICES
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PUBLICATIONS
https://doi.org/10.1016/j.asr.2010.02.020 Ray, R.D., B.D. Beckley, F.G. Lemoine. Vertical crustal motion derived from satellite altimetry and tide gauges, and comparisons with DORIS measurements. Adv. Space Research, 45 (2010) 1510-1522, doi: 10.1016/j.asr.2010.02.020
https://doi.org/10.1109/TGRS.2009.2037220 Near-land radiometer wet path-delay retrieval algorithm description
https://doi.org/10.1029/2007GL030002 Beckley, B.D., F.G. Lemoine, S.B. Luthcke, R.D. Ray, and N.P. Zelensky. 2007. A reassessment of TOPEX and Jason-1 altimetry based on revised reference frame and orbits. Geophys. Res. Lett., 34, L14608, DOI:10.1029/2007GL030002.
https://doi.org/10.1002/2017JC013090 Beckley, B.D., P.S. Callahan, D.W. Hancock, G.T. Mitchum, and R.D. Ray. 2017. On the cal-mode correction to TOPEX satellite altimetry and its effect on the global mean sea level time series. Journal of Geophysical Research: Oceans, 122.https://doi.org/10.1002/2017JC013090.
https://doi.org/10.1175/2009JTECHA1305.1 Microwave radiometer calibration over decadal time scales
https://ntrs.nasa.gov/citations/19990089548 Ray, R.D. 1999. A global ocean tide model from TOPEX/Poseidon altimetry: GOT99.2, NASA TM-1999-209478, NASA Goddard Space Flight Center, September 1999 (Update).
https://doi.org/10.1080/01490410490465643 Jason-1 radiometer performance and calibration
https://doi.org/10.1016/j.asr.2010.05.007 Lemoine, F.G., N.P. Zelensky, D.S. Chinn, D.E. Pavlis, D.D. Rowlands, B.D. Beckley, S.B. Luthcke, P. Willis, M. Ziebart, A. Sibthorpe, J. Boy, V. Luceri, Towards development of a consistent orbit series for TOPEX, Jason-1, and Jason-2, Adv. Space Research, 46 (2010) 1513-1540, doi: 10.1016/j.asr.2010.05.007
https://doi.org/10.1073/pnas.1717312115 Nerem, R.S., B.D. Beckley, J.T. Fasullo, B.D. Hamlington, D. Masters, and G.T. Mitchum,2018. "Climate-changedriven accelerated sea-level rise detected in the altimeter era."Proceedings of the National Academy of Sciences, 201717312. https://doi.org/10.1073/pnas.1717312115.
https://doi.org/10.1175/JTECH1993.1 Validation and development of melting layer models
https://doi.org/10.1109/TGRS.2006.888098 Long-term stability of microwave radiometers using noise diodes for calibration
https://doi.org/10.1016/j.asr.2010.05.008 Zelensky, N.P., F.G. Lemoine, M. Ziebart, A. Sibthorpe, P. Willis, B.D. Beckley, S.M. Klosko, D.S. Chinn, D.D. Rowlands, S.B. Luthcke, D.E. Pavlis, V. Luceri, DORIS/SLR POD modeling improvements for Jason-1 and Jason-2, Adv. Space Research, 46(12), 1541-1558, 2010. doi: 10.1016/j.asr.2010.05.008
GENERAL DOCUMENTATION
https://podaac.jpl.nasa.gov/MEaSUREs-SSH Project Information Page
USER'S GUIDE
https://doi.org/10.5067/ALTUG-TJ151 Integrated Multi-Mission Ocean Altimeter Data for Climate Research TOPEX/Poseidon, Jason-1, 2, and 3 Version 5.1
DATA RECIPE
https://github.com/podaac/data-readers Generic Data Readers

Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.

Citation

Beckley, B.; Zelensky, N.P.; Holmes, S.A.; Lemoine, F.G.; Ray, R.D.; Mitchum, G.T.; Desai, S.; Brown, S.T.. 2022. Integrated Multi-Mission Ocean Altimeter Data for Climate Research Version 5.1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/ALTCY-TJA51

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For more information see Data Citations and Acknowledgments.

Journal Reference

Beckley, B.D., N.P. Zelensky, S.A. Holmes, F.G. Lemoine, R.D. Ray, G.T. Mitchum, S. Desai, S.T. Brown. 2010. Assessment of the Jason-2 Extension to the TOPEX/Poseidon, Jason-1 Sea-Surface Height Time Series for Global Mean Sea Level Monitoring, Marine Geodesy, 33, sup1. https://doi.org/10.1080/01490419.2010.491029

Cloud Enabled

Status:

ACTIVE

Short Name:

MERGED_TP_J1_OSTM_OST_CYCLES_V51

Collection Concept ID:

C2204129664-POCLOUD

Spatial Coverage:

N: 66°

S: -66°

E: 180°

W: -180°

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                        Simple: podaac-data-downloader -c MERGED_TP_J1_OSTM_OST_CYCLES_V51 -d ./data --start-date 1992-09-25T00:00:00Z --end-date 1992-10-02T00:00:00Z -e ""
Download by Spatial and Temporal Search: podaac-data-downloader -c MERGED_TP_J1_OSTM_OST_CYCLES_V51 -d ./data --start-date 1992-09-25T00:00:00Z --end-date 1992-10-02T00:00:00Z -b="-180,-66,180,66"
Download by Extension: podaac-data-downloader -c MERGED_TP_J1_OSTM_OST_CYCLES_V51 -d ./data --start-date 1992-09-25T00:00:00Z --end-date 1992-10-02T00:00:00Z -e .nc
Download recent data (360 min.): podaac-data-subscriber -c MERGED_TP_J1_OSTM_OST_CYCLES_V51 -d ./data -m 360
Download recent data (1440 min.): podaac-data-subscriber -c MERGED_TP_J1_OSTM_OST_CYCLES_V51 -d ./data -m 1440

Direct S3-Access

Available for access in-region with AWS Cloud

Region:

us-west-2

Bucket/Object Prefix Protected buckets contain the data files for a given collection. Protected simply means users must log in to Earthdata Login before gaining access to contents within that S3 Bucket. Please use the S3Credential endpoint to gain an Earthdata login token for use in S3 Access.

Public buckets, in contrast, house metadata such as checksums, imagery, and metadata files and the like. A user can access public buckets and these types of files without logging in to Earthdata Login.

Most of the time, you'll want to access the protected bucket Information

podaac-ops-cumulus-protected/MERGED_TP_J1_OSTM_OST_CYCLES_V51/

podaac-ops-cumulus-public/MERGED_TP_J1_OSTM_OST_CYCLES_V51/

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Integrated Multi-Mission Ocean Altimeter Data for Climate Research Version 5.1

Integrated Multi-Mission Ocean Altimeter Data for Climate Research Version 5.1

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Integrated Multi-Mission Ocean Altimeter Data for Climate Research Version 5.1

Integrated Multi-Mission Ocean Altimeter Data for Climate Research Version 5.1

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