SWOT Level 1B High-Rate Single-look Complex Data Product, Version C

(SWOT_L1B_HR_SLC_2.0)

Information
Coverage
Data Access
Variables
Documentation
Citation

Version	2.0
Processing Level	1B
Start/Stop Date	2022-Dec-16 to Present
Short Name	SWOT_L1B_HR_SLC_2.0
Description	High rate data processed to single-look complex SAR images for each antenna. Gridded tile (approx 64x64 km2); half swath (left or right side of full swath). Available in netCDF-4 file format. Please note that this collection contains SWOT Version C science data products.
DOI	10.5067/SWOT-SLC-2.0
Measurement	SPECTRAL/ENGINEERING > RADAR > RADAR IMAGERY
Swath Width	120 km
Platform/Sensor	SWOT Platform Name: Surface Water Ocean Topography (SWOT) / KaRIn SENSOR Name: Ka-band Radar Interferometer (KaRIn) SWOT Platform Name: Surface Water Ocean Topography (SWOT) / Jason-class Altimeter SENSOR Name: Jason-class Altimeter (Jason-class Altimeter) SWOT Platform Name: Surface Water Ocean Topography (SWOT) / AMR SENSOR Name: Advanced Microwave Radiometer (AMR) Swath Width: 18.7 ghz Description: The operating frequency which is aimed towards recovery of atmospheric attenuation due to sigma0 Swath Width: 23.8 ghz Description: The operating frequency which is aimed towards recovery of atmospheric attenuation due to water vapor Swath Width: 34.0 ghz Description: The operating frequency which is aimed towards recovery of atmospheric attenuation due to cloud liquid water. SWOT Platform Name: Surface Water Ocean Topography (SWOT) / DORIS SENSOR Name: Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) SWOT Platform Name: Surface Water Ocean Topography (SWOT) / GPSP SENSOR Name: Global Positioning System Payload (GPSP) SWOT Platform Name: Surface Water Ocean Topography (SWOT) / LRA SENSOR Name: Laser Retroreflector Array (LRA) Show More
Project	Surface Water Ocean Topography (SWOT)
Data Provider	Publisher: JPL NASA Creator: Surface Water Ocean Topography (SWOT) Release Place: Jet Propulsion Laboratory Release Date: 2024-Feb-01 Resource: https://swot.jpl.nasa.gov/
Format	netCDF-4

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

Coverage Region: GLOBAL North Bounding Coordinate: 90 degrees South Bounding Coordinate: -90 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 2022-Dec-16 to Present Swath Width: 120 km

DIRECT ACCESS
Browse Granule Listing
https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2799438119-POCLOUD
OPENDAP DATA
https://opendap.earthdata.nasa.gov
Search Granules
https://search.earthdata.nasa.gov/search/granules?p=C2799438119-POCLOUD
Search Granules from Bulk Reprocessing (PGC0)
https://search.earthdata.nasa.gov/search/granules?p=C2799438119-POCLOUD&pg[0][id]=PGC0
Search Granules from Forward Processing (PIC0 & PIC2)
https://search.earthdata.nasa.gov/search/granules?p=C2799438119-POCLOUD&pg[0][id]=_PIC
This dataset can be downloaded using the podaac-data-subscriber (the recommended tool for bulk downloading PO.DAAC data). It is a Python package for downloading one or many files using the command line interface. The URL redirects to the data-subscriber home page with instructions for utilizing the tool
https://github.com/podaac/data-subscriber
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-swot-ops-cumulus-protected/SWOT_L1B_HR_SLC_2.0/
podaac-swot-ops-cumulus-public/SWOT_L1B_HR_SLC_2.0/
AWS S3 Credentials
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Name	Long Name	Unit
/grdem/height	height of the surface	m
/grdem/platform_altitude	platform altitude	m
/grdem/platform_latitude	platform latitude	degrees_north
/grdem/platform_longitude	platform longitude	degrees_east
/grdem/platform_time	platform time in UTC	seconds since 2000-01-01 00:00:00.000
/grdem/platform_time_tai	platform time in TAI	seconds since 2000-01-01 00:00:00.000
/grdem/platform_velocity_x	platform velocity x component in ECEF	m/s
/grdem/platform_velocity_y	platform velocity y component in ECEF	m/s
/grdem/platform_velocity_z	platform velocity z component in ECEF	m/s
/noise/noise_minus_y	Noise estimate for the minus_y channel	1
/noise/noise_plus_y	Noise estimate for the plus_y channel	1
/slc/slc_minus_y	single look complex image for the minus_y channel	1
/slc/slc_plus_y	single look complex image for the plus_y channel	1
/slc/slc_qual	SLC quality flag
/tvp/altitude	altitude of the spacecraft	m
/tvp/latitude	latitude (positive N, negative S) of the spacecraft	degrees_north
/tvp/longitude	longitude (degrees East) of the spacecraft	degrees_east
/tvp/minus_y_antenna_x	x coordinate of the minus_y antenna phase center in the ECEF frame	m
/tvp/minus_y_antenna_y	y coordinate of the minus_y antenna phase center in the ECEF frame	m
/tvp/minus_y_antenna_z	z coordinate of the minus_y antenna phase center in the ECEF frame	m
/tvp/pitch	pitch of the spacecraft	degrees
/tvp/plus_y_antenna_x	x coordinate of the plus_y antenna phase center in the ECEF frame	m
/tvp/plus_y_antenna_y	y coordinate of the plus_y antenna phase center in the ECEF frame	m
/tvp/plus_y_antenna_z	z coordinate of the plus_y antenna phase center in the ECEF frame	m
/tvp/record_counter	record counter	1
/tvp/roll	roll of the spacecraft	degrees
/tvp/sc_event_flag	spacecraft event flag
/tvp/time	time in UTC	seconds since 2000-01-01 00:00:00.000
/tvp/time_tai	time in TAI	seconds since 2000-01-01 00:00:00.000
/tvp/tvp_qual	TVP quality flag
/tvp/velocity_heading	heading of the spacecraft Earth-relative velocity vector	degrees
/tvp/vx	x component of the spacecraft velocity in the ECEF frame	m/s
/tvp/vy	y component of the spacecraft velocity in the ECEF frame	m/s
/tvp/vz	z component of the spacecraft velocity in the ECEF frame	m/s
/tvp/x	x coordinate of the spacecraft in the ECEF frame	m
/tvp/y	y coordinate of the spacecraft in the ECEF frame	m
/tvp/yaw	yaw of the spacecraft	degrees
/tvp/z	z coordinate of the spacecraft in the ECEF frame	m
/xfactor/xfactor_minus_y	X factor for the minus_y channel	1
/xfactor/xfactor_plus_y	X factor for the plus_y channel	1

USER'S GUIDE
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/D-109532_SWOT_UserHandbook_RevA_20250311_sig-final.pdf SWOT User Handbook
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/pdd/D-56410_SWOT_Product_Description_L1B_HR_SLC_20250224a_RevC_clean_sig_final.pdf Product Description Document (PDD)
GENERAL DOCUMENTATION
https://swot.jpl.nasa.gov SWOT Mission Page
https://www.nasa.gov/swot SWOT Mission Page at NASA
https://www.jpl.nasa.gov/missions/surface-water-and-ocean-topography-swot SWOT Mission Page at JPL
https://podaac.jpl.nasa.gov/swot SWOT Mission Page at PO.DAAC
https://www.aviso.altimetry.fr/en/missions/current-missions/swot.html SWOT Mission Page at AVISO
ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/atbd/D-105503_SWOT_ATBD_L1B_HR_SLC_20230713_cite2.pdf Algorithm Theoretical Basis Document (ATBD)

https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/releases/SWOT_VersionC_KaRIn_Products_Release_Note_20241014.pdf Release Note

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

Surface Water Ocean Topography (SWOT). 2024. SWOT Level 1B High-Rate Single-look Complex Data Product, Version C. Ver. C. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SWOT-SLC-2.0

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For more information see Data Citations and Acknowledgments.

Journal Reference

JPL Internal Document. 2018. Surface Water and Ocean Topography Mission (SWOT) Project: Science Requirements Document, JPL D-61923, Rev. B, Jet Propulsion Laboratory.

Cloud Enabled

Status:

SUPERSEDED

Short Name:

SWOT_L1B_HR_SLC_2.0

Collection Concept ID:

C2799438119-POCLOUD

Spatial Coverage:

N: 90°

S: -90°

E: 180°

W: -180°

Access:

Capabilities:

Tools

PO.DAAC Data Subscriber

Information


                        Simple: podaac-data-downloader -c SWOT_L1B_HR_SLC_2.0 -d ./data --start-date 2022-12-16T00:00:00Z --end-date 2022-12-23T00:00:00Z -e ""
Download by Spatial and Temporal Search: podaac-data-downloader -c SWOT_L1B_HR_SLC_2.0 -d ./data --start-date 2022-12-16T00:00:00Z --end-date 2022-12-23T00:00:00Z -b="-180,-90,180,90"
Download by Extension: podaac-data-downloader -c SWOT_L1B_HR_SLC_2.0 -d ./data --start-date 2022-12-16T00:00:00Z --end-date 2022-12-23T00:00:00Z -e .nc
Download by Cycle: podaac-data-downloader -c SWOT_L1B_HR_SLC_2.0 -d ./data --cycle 474
Download recent data (360 min.): podaac-data-subscriber -c SWOT_L1B_HR_SLC_2.0 -d ./data -m 360
Download recent data (1440 min.): podaac-data-subscriber -c SWOT_L1B_HR_SLC_2.0 -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-swot-ops-cumulus-protected/SWOT_L1B_HR_SLC_2.0/

podaac-swot-ops-cumulus-public/SWOT_L1B_HR_SLC_2.0/

AWS S3 Credentials

Get AWS S3 Credentials | Documentation

PO.DAAC

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SWOT Level 1B High-Rate Single-look Complex Data Product, Version C

SWOT Level 1B High-Rate Single-look Complex Data Product, Version C

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SWOT Level 1B High-Rate Single-look Complex Data Product, Version C

SWOT Level 1B High-Rate Single-look Complex Data Product, Version C

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