NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1

(CYGNSS_NOAA_L2_SWSP_25KM_V1.1)

Citation metrics available for years (2014-2021)

Publications citing NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1

Citation metrics available for years (2014-2021)

Year	Citation
2021	NOAA/NESDIS/STAR/SOCD, “NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1.,” 2020, https://doi.org/10.5067/CYGNN-22511. An Evaluation of NOAA CyGNSS Winds Derived from v3. 0 CyGNSS Normalized Bistatic Radar Cross Section, Journal,10.1109/IGARSS47720.2021.9553283
2021	NOAA/NESDIS/STAR/SOCD, 2021. NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1. Ver. 1.1. PO.DAAC. https://doi.org/10.5067/CYGNN-22511 (accessed: 2021-03-08). Analysis of coastal wind speed retrieval from CYGNSS mission using artificial neural network, Journal,10.1016/j.rse.2021.112454
2021	DOC/NOAA/NESDIS/STAR NOAA CYGNSS Level 2 Science Wind Speed 25-Km Product Version 1.1, NASA Physical Oceanography DAAC. 2020. Available online: https://podaac.jpl.nasa.gov/dataset/CYGNSS_NOAA_L2_SWSP_25KM_V1.1 (accessed on 8 November 2021) Assessment of CYGNSS Wind Speed Retrievals in Tropical Cyclones, Journal,10.3390/rs13245110
2021	DOC/NOAA/NESDIS/STAR. NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1. PO.DAAC, CA, USA. 2020. Available online: https://podaac.jpl.nasa.gov/dataset/CYGNSS_NOAA_L2_SWSP_25KM_V1.1 (accessed on 18 February 2021) Improved CYGNSS Wind Speed Retrieval Using Significant Wave Height Correction, Journal,10.3390/rs13214313
2021	NOAA/NESDIS/STAR/SOCD, “NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1.,”2020, https://doi.org/10.5067/CYGNN-22511. NOAA CYGNSS Wind Product: Recent Progress, Journal,10.1109/GNSSR53802.2021.9617693
2021	NOAA CYGNSS Level 2 Science Wind Speed 25-km Product, Version 1.1 ed; PO.DAAC: Pasadena, CA, USA, 2020. Available online: https://doi.org/10.5067/CYGNN-22511 (accessed on 21 March 2021) The CYGNSS mission: On-going science team investigations, Journal,10.3390/rs13091814

Information
Coverage
Data Access
Documentation
Citation
Version History

Version	1.1
Processing Level	2
Start/Stop Date	2017-May-01 to 2022-May-28
Short Name	CYGNSS_NOAA_L2_SWSP_25KM_V1.1
Description	This dataset contains the Version 1.1 NOAA CYGNSS Level 2 Science Wind Speed Product Version 1.1 which provides the time-tagged and geolocated average wind speed (m/s) in 25x25 kilometer grid cells along the measurement tracks from the Delay Doppler Mapping Instrument (DDMI) aboard the CYGNSS satellite constellation. This version corresponds to the first science-quality release produced by NOAA/NESDIS using a specific geophysical model function (GMF version 1.0) and a track-wise debiasing algorithm as part of the wind speed retrieval process. The reported sample locations are determined by averaging the specular point locations falling within each 25 km grid cell. Only one netCDF data file is produced each day (each file containing data from up to 8 unique CYGNSS spacecraft) with a latency of approximately 6 days (or better) from the last recorded measurement time. Formatting of the data variables and metadata designed to be consistent with the netCDF formatting provided by the legacy CYGNSS mission Level 2 wind speed science data record (SDR).
DOI	10.5067/CYGNN-22511
Measurement	SPECTRAL/ENGINEERING > RADAR > RADAR CROSS-SECTION OCEANS > OCEAN WINDS > SURFACE WINDS
Swath Width	25 km
Platform/Sensor	CYGNSS Platform Name: Cyclone Global Navigation Satellite System (CYGNSS) Orbit Period: 94.0 minutes Inclination Angle: 35.0 degrees / DDMI SENSOR Name: Delay Doppler Mapping Instrument (DDMI) Swath Width: 25.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator.
Project	Cyclone Global Navigation Satellite System (CYGNSS)
Data Provider	Publisher: PO.DAAC Creator: NOAA/NESDIS/STAR/SOCD Release Place: PO.DAAC Release Date: 2020-Sep-28 Resource: https://manati.star.nesdis.noaa.gov/products/CYGNSS.php
Format	netCDF-4
Keyword(s)	noaa, nesdis, star, socd, cygnss, ddm, ddmi, doppler, delay doppler, delay, specular point, wind, winds, wind speed, version 1.1, v1.1

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

Resolution Spatial Resolution: 25000 Meters x 25000 Meters Temporal Resolution: Hourly - < Daily Coverage Region: GLOBAL North Bounding Coordinate: 40 degrees South Bounding Coordinate: -40 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 2017-May-01 to 2022-May-28 Granule Time Span: 2017-May-01 to 2022-May-28 Swath Width: 25 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/C2036882072-POCLOUD
OPENDAP DATA
https://podaac.jpl.nasa.gov/OPeNDAP-in-the-Cloud
Search Granules
https://search.earthdata.nasa.gov/search/granules?p=C2036882072-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-ops-cumulus-protected/CYGNSS_NOAA_L2_SWSP_25KM_V1.1/
podaac-ops-cumulus-public/CYGNSS_NOAA_L2_SWSP_25KM_V1.1/
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PUBLICATIONS
https://doi.org/10.1175/BAMS-D-18-0337.1 Ruf, C., S. Asharaf, R. Balasubramaniam, S. Gleason, T. Lang, D. McKague, D. Twigg, and D. Waliser. (2019). In-Orbit Performance of the Constellation of CYGNSS Hurricane Satellites. Bull. Amer. Meteor. Soc., 100, 2009 - 2023, https://doi.org/10.1175/BAMS-D-18-0337.1.
https://doi.org/10.1109/IGARSS.2019.8898099 F. Said, Z. Jelenak, J. Park, S. Soisuvarn and P. S. Chang, "A Track-Wise Wind Retrieval Algorithm for the CYGNSS Mission," IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, Yokohama, Japan, 2019, pp. 8711-8714. doi: 10.1109/IGARSS.2019.8898099
https://doi.org/10.1175/BAMS-D-14-00218.1 Ruf, C., R. Atlas, P. Chang, M. Clarizia, J. Garrison, S. Gleason, S. Katzberg, Z. Jelenak, J. Johnson, S. Majumdar, A. O'Brien, D. Posselt, A. Ridley, R. Rose, V. Zavorotny (2015). New Ocean Winds Satellite Mission to Probe Hurricanes and Tropical Convection. Bull. Amer. Meteor. Soc., doi:10.1175/BAMS-D-14-00218.1.
GENERAL DOCUMENTATION
https://cygnss.engin.umich.edu/ CYGNSS Mission Page at University of Michigan
https://manati.star.nesdis.noaa.gov/products/CYGNSS.php CYGNSS data documentation and references provided and hosted by NOAA/NESDIS/STAR.
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_1.txt Updated Monthly
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_2.txt Updated Monthly
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_3.txt Updated Monthly
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_4.txt Updated Monthly
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_5.txt Updated Monthly
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_6.txt Updated Monthly
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_7.txt Updated Monthly
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_8.txt Updated Monthly
DATA RECIPE
https://github.com/podaac/data-readers Generic Data Readers
USER'S GUIDE
https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L2/docs/basic_user_guide_noaa_l2_wind_v1.1.pdf User Guide Compiled by the OSWT at NOAA-NESDIS-STAR
https://cygnss.engin.umich.edu/wp-content/uploads/sites/534/2021/06/CYGNSS_Handbook_April2016.pdf Deriving Surface Winds from Tropical Cyclones
DATA CITATION POLICY
https://podaac.jpl.nasa.gov/CitingPODAAC Data Use and Citation Policy

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

NOAA/NESDIS/STAR/SOCD. 2020. NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1. Ver. 1.1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/CYGNN-22511

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For more information see Data Citations and Acknowledgments.

Journal Reference

Said, F., Jelenak, Z., Park, J., Soisuvarn, S., and Chang, P. S.. 2019. A Track-Wise Wind Retrieval Algorithm for the CYGNSS Mission, IEEE. https://doi.org/10.1109/IGARSS.2019.8898099

Version	Dataset	Version Date	Status
1.2	NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.2	2022-04-20	ACTIVE	2022-04-20T14:12:00.000Z
1.1	NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1	2021-10-18	COMPLETE	2021-10-18T18:32:00.000Z

Cloud Enabled

Status:

COMPLETE

Short Name:

CYGNSS_NOAA_L2_SWSP_25KM_V1.1

Collection Concept ID:

C2036882072-POCLOUD

Spatial Coverage:

N: 40°

S: -40°

E: 180°

W: -180°

Access:

Capabilities:

Tools

PO.DAAC Data Subscriber

Information


                        Simple: podaac-data-downloader -c CYGNSS_NOAA_L2_SWSP_25KM_V1.1 -d ./data --start-date 2017-05-01T00:00:02Z --end-date 2017-05-08T00:00:02Z -e ""
Download by Spatial and Temporal Search: podaac-data-downloader -c CYGNSS_NOAA_L2_SWSP_25KM_V1.1 -d ./data --start-date 2017-05-01T00:00:02Z --end-date 2017-05-08T00:00:02Z -b="-180,-40,180,40"
Download by Extension: podaac-data-downloader -c CYGNSS_NOAA_L2_SWSP_25KM_V1.1 -d ./data --start-date 2017-05-01T00:00:02Z --end-date 2017-05-08T00:00:02Z -e .nc
Download recent data (360 min.): podaac-data-subscriber -c CYGNSS_NOAA_L2_SWSP_25KM_V1.1 -d ./data -m 360
Download recent data (1440 min.): podaac-data-subscriber -c CYGNSS_NOAA_L2_SWSP_25KM_V1.1 -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/CYGNSS_NOAA_L2_SWSP_25KM_V1.1/

podaac-ops-cumulus-public/CYGNSS_NOAA_L2_SWSP_25KM_V1.1/

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NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1

NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1

Publications citing NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1

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