SWOT Level 2 Water Mask Pixel Cloud Data Product, Version 1.1

(SWOT_L2_HR_PIXC_1.1)

Information
Coverage
Data Access
Variables
Documentation
Citation

Version	1.1
Processing Level	2
Start/Stop Date	2022-Dec-16 to Present
Short Name	SWOT_L2_HR_PIXC_1.1
Description	Point cloud of water mask pixels (“pixel cloud”) with geolocated heights, backscatter, geophysical fields, and flags. Point cloud over tile (approx 64x64 km2); half swath (left or right side of full swath). Available in netCDF-4 file format.
DOI	10.5067/SWOT-PIXC-1.1
Measurement	TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER FEATURES TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER PROCESSES/MEASUREMENTS TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER FEATURES
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: 2023-Nov-30 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/C2758162620-POCLOUD
Search Granules
https://search.earthdata.nasa.gov/search/granules?p=C2758162620-POCLOUD
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_L2_HR_PIXC_1.1/
podaac-swot-ops-cumulus-public/SWOT_L2_HR_PIXC_1.1/
AWS S3 Credentials
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TOOLS AND SERVICES
Data Subscriber

Name	Long Name	Unit
/noise/noise_minus_y	Noise estimate for the minus_y channel	1
/noise/noise_plus_y	Noise estimate for the plus_y channel	1
/pixel_cloud/ambiguity_cost1	phase ambiguity minimum cost	1
/pixel_cloud/ambiguity_cost2	phase ambiguity 2nd minimum cost	1
/pixel_cloud/ancillary_surface_classification_flag	surface classification
/pixel_cloud/azimuth_index	rare interferogram azimuth index	1
/pixel_cloud/bright_land_flag	bright land flag
/pixel_cloud/classification	classification
/pixel_cloud/classification_qual	/pixel_cloud/classification_qual
/pixel_cloud/coherent_power	coherent power combination of minus_y and plus_y channels	1
/pixel_cloud/cross_track	approximate cross-track location	m
/pixel_cloud/darea_dheight	sensitivity of pixel area to reference height	m^2/m
/pixel_cloud/dheight_dbaseline	sensitivity of height estimate to interferometric baseline	m/m
/pixel_cloud/dheight_dphase	sensitivity of height estimate to interferogram phase	m/radian
/pixel_cloud/dheight_drange	sensitivity of height estimate to range (delay)	m/m
/pixel_cloud/dheight_droll	sensitivity of height estimate to spacecraft roll	m/degrees
/pixel_cloud/dlatitude_dphase	sensitivity of latitude estimate to interferogram phase	degrees/radian
/pixel_cloud/dlongitude_dphase	sensitivity of longitude estimate to interferogram phase	degrees/radian
/pixel_cloud/eff_num_medium_looks	effective number of medium looks	1
/pixel_cloud/eff_num_rare_looks	effective number of rare looks	1
/pixel_cloud/false_detection_rate	false detection rate	1
/pixel_cloud/geoid	geoid height	m
/pixel_cloud/geolocation_qual	/pixel_cloud/geolocation_qual
/pixel_cloud/height	height above reference ellipsoid	m
/pixel_cloud/height_cor_xover	height correction from KaRIn crossovers	m
/pixel_cloud/illumination_time	time of illumination of each pixel (UTC)	seconds since 2000-01-01 00:00:00.000
/pixel_cloud/illumination_time_tai	time of illumination of each pixel (TAI)	seconds since 2000-01-01 00:00:00.000
/pixel_cloud/inc	incidence angle	degrees
/pixel_cloud/instrument_baseline_cor	instrument baseline correction	m
/pixel_cloud/instrument_phase_cor	instrument phase correction	radians
/pixel_cloud/instrument_range_cor	instrument range correction	m
/pixel_cloud/interferogram	rare interferogram	1
/pixel_cloud/interferogram_qual	/pixel_cloud/interferogram_qual
/pixel_cloud/iono_cor_gim_ka	ionosphere vertical correction	m
/pixel_cloud/latitude	latitude (positive N, negative S)	degrees_north
/pixel_cloud/layover_impact	layover impact	m
/pixel_cloud/load_tide_fes	geocentric load tide height (FES)	m
/pixel_cloud/load_tide_got	geocentric load tide height (GOT)	m
/pixel_cloud/longitude	longitude (degrees East)	degrees_east
/pixel_cloud/missed_detection_rate	missed detection rate	1
/pixel_cloud/model_dry_tropo_cor	dry troposphere vertical correction	m
/pixel_cloud/model_wet_tropo_cor	wet troposphere vertical correction	m
/pixel_cloud/phase_noise_std	phase noise standard deviation	radians
/pixel_cloud/phase_unwrapping_region	phase unwrapping region index	1
/pixel_cloud/pixc_line_qual	/pixel_cloud/pixc_line_qual
/pixel_cloud/pixc_line_to_tvp	pixel cloud rare line to tvp index	1
/pixel_cloud/pixel_area	pixel area	m^2
/pixel_cloud/pole_tide	geocentric pole tide height	m
/pixel_cloud/power_minus_y	power for minus_y channel	1
/pixel_cloud/power_plus_y	power for plus_y channel	1
/pixel_cloud/prior_water_prob	prior water probability	1
/pixel_cloud/range_index	rare interferogram range index	1
/pixel_cloud/sig0	sigma0	1
/pixel_cloud/sig0_cor_atmos_model	two-way atmospheric correction to sigma0 from model	1
/pixel_cloud/sig0_qual	/pixel_cloud/sig0_qual
/pixel_cloud/sig0_uncert	sigma0 uncertainty	1
/pixel_cloud/solid_earth_tide	solid Earth tide height	m
/pixel_cloud/water_frac	water fraction	1
/pixel_cloud/water_frac_uncert	water fraction uncertainty	1
/pixel_cloud/x_factor_minus_y	X factor for minus_y channel power	1
/pixel_cloud/x_factor_plus_y	X factor for plus_y channel power	1
/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

USER'S GUIDE
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/D-109532_SWOT_UserHandbook_20240502.pdf SWOT User Handbook
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/pdd/D-56411_SWOT_Product_Description_L2_HR_PIXC_20231026_RevBcite.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
DATA CITATION POLICY
https://podaac.jpl.nasa.gov/CitingPODAAC Data Use and Citation Policy
ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/atbd/D-105504_SWOT_ATBD_L2_HR_PIXC_20230713a_cite.pdf Algorithm Theoretical Basis Document (ATBD)

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). 2023. SWOT Level 2 Water Mask Pixel Cloud Data Product, Version 1.1. Ver. 1.1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SWOT-PIXC-1.1

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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:

ACTIVE

Short Name:

SWOT_L2_HR_PIXC_1.1

Collection Concept ID:

C2758162620-POCLOUD

Spatial Coverage:

N: 90°

S: -90°

E: 180°

W: -180°

Access:

PO.DAAC

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SWOT Level 2 Water Mask Pixel Cloud Data Product, Version 1.1

SWOT Level 2 Water Mask Pixel Cloud Data Product, Version 1.1

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SWOT Level 2 Water Mask Pixel Cloud Data Product, Version 1.1

SWOT Level 2 Water Mask Pixel Cloud Data Product, Version 1.1

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