ERS-1 Gridded Level 3 Enhanced Resolution Sigma-0 from BYU

(ERS-1_BYU_L3_OW_SIGMA0_ENHANCED)
Version1
Processing Level3
Start/Stop Date1992-Jan-01 to 1996-May-17
Short NameERS-1_BYU_L3_OW_SIGMA0_ENHANCED
DescriptionThis European Remote Sensing (ERS) Sigma-0 dataset is generated by the Scatterometer Climate Record Pathfinder (SCP) project at Brigham Young University (BYU) and is generated using a Scatterometer Image Reconstruction (SIR) technique developed by Dr. David Long at BYU. The dataset provides SIR processed Sigma-0 data from the ERS-1 C-band scatterometer, which is also known as the Active Microwave Instrument (AMI). AMI is a multimode radar operating at a frequency of 5.3 GHz (C-band), using vertically polarized antennas for both transmission and reception. The SIR technique results in an enhanced resolution image reconstruction and gridded on an equal-area grid (for non-polar regions) at 8.9 km pixel resolution stored in SIR files; polar regions are gridded at the same resolution using a polar-stereographic technique. A non-enhanced version is provided at 44.5 km pixel resolution in a format known as GRD (i.e., gridded) files. All files are produced in IEEE formatted binary. All data files are separated and organized by region, parameter, and sampling technique (i.e., SIR vs. GRD). The regions of China and Japan are combined into a single region. In addition to Sigma-0, various statistical parameters are provided for added guidance, including but not limited to: standard deviation, measurement counts, pixel time, Sigma-0 error, and average incidence angle. This dataset was once distributed on tape, but has been made available on FTP thanks to the BYU SCP.
DOI10.5067/ERS1B-SNEN0
MeasurementCRYOSPHERE > SEA ICE > ICE EXTENT
SPECTRAL/ENGINEERING > RADAR > SIGMA NAUGHT
Platform/Sensor
ERS-1
Platform
Name: European Remote Sensing Satellite-1 (ERS-1)
Orbit Period: 100.3 minutes
Inclination Angle: 98.5 degrees
/
AMI
SENSOR
Name: Active Microwave Instrument (AMI)
Swath Width: 500.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectScatterometry Climate Record Pathfinder (SCP)
Data ProviderPublisher: PO.DAAC
Creator: BYU/SCP
Release Place: PO.DAAC
Release Date: 2011-Nov-29
Resource: https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/ers1/open/L3/byu_scp/sigma0enhanced/docs/dLongERS1.html

FormatRAW
Keyword(s)sigma naught, sigma-0, backscatter, normalized radar cross-section, radar, ers, ers-1, ami, c-band, scatterometer, byu, david long, scp, sir, grd
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution
Spatial Resolution: 0.04 Decimal Degrees x 0.04 Decimal Degrees
Temporal Resolution: 6 Day
 
Coverage
Region: Japan
Region: Alaska
Region: EUROPE
Region: AFRICA
Region: Central America
Region: China
Region: Siberia
Region: PACIFIC OCEAN
Region: ANTARCTICA
Region: ANTARCTICA
Region: ARCTIC
Region: ANTARCTICA
Region: Greenland
Region: NORTH AMERICA
Region: NORTH AMERICA
Region: ARCTIC
Region: ARCTIC
Region: Indonesia
Region: SOUTH AMERICA
Region: AUSTRALIA/NEW ZEALAND
Region: ASIA
North Bounding Coordinate: 88.2 degrees
South Bounding Coordinate: -79.7 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 1992-Jan-01 to 1996-May-17
 
Projection
Projection Type: Gridded
Projection Detail: Equal-Area and Polar-Stereographic
Ellipsoid: WGS 84
 
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 BYU/SCP. 2011. ERS-1 Gridded Level 3 Enhanced Resolution Sigma-0 from BYU. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/ERS1B-SNEN0

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For more information see Data Citations and Acknowledgments.
Journal Reference Early, D. S. and D. G. Long, 2001: Image Reconstruction and Enhanced Resolution Imaging From Irregular Samples. IEEE Transactions on Geoscience and Remote Sensing, Vol. 39, No.2, pp. 291-302.

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