CYGNSS Level 3 Storm Centric Grid Science Data Record Version 1.0

(CYGNSS_L3_S1.0)
2 Publications Cited this Dataset
Citation metrics available for years (2014-2022)
Version1.0
Processing Level3
Start/Stop Date2018-Aug-05 to 2020-Nov-18
Short NameCYGNSS_L3_S1.0
DescriptionThis dataset contains the Version 1.0 Cyclone Global Navigation Satellite System (CYGNSS) Level 3 Storm Centric Grid (SCG) Science Data Record (SDR) which provides the average wind speed combined from aggregated wind speed measurements made by the entire CYGNSS constellation whose specular points are located near a storm of interest in latitude, longitude and time. Data are provided on both a 0.1x0.1 degree latitude by longitude equirectangular grid and storm centric coordinates obtained from the Delay Doppler Mapping Instrument (DDMI) aboard the CYGNSS satellite constellation. Storm centric coordinates are derived from the National Hurricane Center (NHC) Best Track dataset to produce a 6 hourly wind speed averaging window. A single netCDF-4 data file is produced for each storm. Each storm is uniquely identified by the year, storm basin, and a storm number. This dataset is intended for historical storm analysis, and as such, this dataset is periodically updated based on the availability of the NHC Best Track storm center information that is typically made available in April for the previous year's hurricane season. SCG files are produced for named storms, as defined by the NHC, that reach hurricane strength (i.e., having a maximum sustained wind speed of at least 65 knots). Due to the dependency on NHC Best Track data, the SCG files produced in this dataset are confined to storms in the Northern Hemisphere within the North Atlantic and East Pacific ocean regions. Wind speed inputs are provided by the CYGNSS Level 2 SDR Version 3.0 (https://doi.org/10.5067/CYGNS-L2X30 ).
DOI10.5067/CYGNS-L3S10
MeasurementOCEANS > OCEAN WINDS > SURFACE WINDS
OCEANS > OCEAN WINDS > SURFACE WINDS
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.

ProjectCyclone Global Navigation Satellite System (CYGNSS)
Data ProviderPublisher: PO.DAAC
Creator: CYGNSS
Release Place: PO.DAAC
Release Date: 2021-Mar-05
Resource: https://cygnss.engin.umich.edu/

FormatnetCDF-4
Keyword(s)cygnss, ddm, ddmi, doppler, delay doppler, delay, specular point, wind, winds, wind speed, version 1.0, v1.0, v1, version 1, hurricane, tropical, storm, storm centric, storm-centric, scg, grid, gridded, national hurricane center, nhc, best track, ocean, atlantic, pacific, north atlantic, east pacific
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution
Spatial Resolution: 0.1 Decimal Degrees x 0.1 Decimal Degrees
Temporal Resolution: Hourly - < Daily
 
Coverage
Region: PACIFIC OCEAN
Region: ATLANTIC OCEAN
Region: ATLANTIC OCEAN
Region: ATLANTIC OCEAN
North Bounding Coordinate: 55 degrees
South Bounding Coordinate: 0 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 0 degrees
Time Span: 2018-Aug-05 to 2020-Nov-18
Granule Time Span: 2018-Aug-05 to 2020-Nov-18
 
Projection
Projection Type: Cylindrical Lat-Lon
Projection Detail: Geolocation information included for each pixel
Ellipsoid: WGS 84
 
NameLong NameUnit
best_track_max_sustained_wind_speedMaximum sustained wind speedm s-1
best_track_r34_neRadial extent of 34 knot winds in north eastkm
best_track_r34_nwRadial extent of 34 knot winds in north westkm
best_track_r34_seRadial extent of 34 knot winds in south eastkm
best_track_r34_swRadial extent of 34 knot winds in south westkm
best_track_storm_center_latStorm center latitudedegrees_north
best_track_storm_center_lonStorm center longitudedegrees_east
best_track_storm_statusStorm status1
epoch_timeTime Centering of Data Based on Epoch Referencehours since 2018-08-01 00:00:00.000000000
latLatitudedegrees_north
lonLongitudedegrees_east
num_wind_speed_tracksNumber of wind speed tracks1
num_windsNumber of wind speeds1
quality_statusQuality status1
storm_centric_latLatitude relative to best_track_storm_center_latdegrees_north
storm_centric_lonLongitude relative to best_track_storm_center_londegrees_east
storm_centric_wind_speedStorm Centric Wind speedm s-1
timeReference time of filehours since 2018-08-30 06:00:00.000000000
wind_averaging_statusWind speed averaging status1
wind_speedWind speedm s-1
ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)
DATA RECIPE
USER'S GUIDE
PUBLICATIONS
  • 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.
  • 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.
ANOMALIES
DATA CITATION POLICY
GENERAL DOCUMENTATION
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 CYGNSS. 2021. CYGNSS Level 3 Storm Centric Grid Science Data Record Version 1.0. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/CYGNS-L3S10

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For more information see Data Citations and Acknowledgments.
Journal Reference Mayers, D.. 2021. New Applications of Satellite-Measured Tropical Cyclone Wind Speed, University of Michigan. https://doi.org/10.7302/1509