NSCAT Gridded Level 3 Enhanced Resolution Sigma-0 from BYU
(NSCAT_BYU_L3_OW_SIGMA0_ENHANCED)This dataset will be available through Earthdata Cloud only, starting September, 2022. Learn More
| DOI | 10.5067/NSBYU-SNEN0 |
| Short Name | NSCAT_BYU_L3_OW_SIGMA0_ENHANCED |
| Description | This NASA Scatterometer (NSCAT) satellite 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. The SIR technique results in an enhanced resolution image reconstruction and gridded on an equal-area grid (for non-polar regions) at 4.45 km pixel resolution stored in SIR files; polar regions are gridded using a polar-stereographic technique. A non-enhanced version is provided at 22.25 km pixel resolution in a format known as GRD files. All files are produced in IEEE formatted binary. All data files are separated and organized by region, polarization, parameter, and sampling technique (i.e., SIR vs. GRD). The regions of China and Japan are combined into a single region. In additional 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. For more information, please visti: http://www.scp.byu.edu/docs/NSCAT_user_notes.html |
| Version | 1 |
| Dataset Type | COMPLETE |
| Measurement | CRYOSPHERE > SEA ICE > ICE EXTENT SPECTRAL/ENGINEERING > RADAR > SIGMA NAUGHT |
| Processing Level | 3 |
| Coverage | Region: PACIFIC OCEAN Region: Central America Region: AFRICA Region: Siberia Region: ASIA Region: ANTARCTICA Region: ANTARCTICA Region: ARCTIC Region: ANTARCTICA Region: Greenland Region: NORTH AMERICA Region: Alaska Region: EUROPE Region: ARCTIC Region: ARCTIC Region: AUSTRALIA/NEW ZEALAND Region: China Region: NORTH AMERICA Region: Japan Region: Indonesia Region: SOUTH AMERICA North Bounding Coordinate: 89 degrees South Bounding Coordinate: -89 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 1996-Sep-15 to 1997-Jun-26 |
| Resolution | Spatial Resolution: 0.04 degrees (Latitude) x 0.04 degrees (Longitude) Temporal Resolution: 12 Hour |
| Projection | Projection Type: Gridded Projection Detail: Equal-Area and Polar-Stereographic Ellipsoid: WGS 84 |
| Platform/Sensor | ADEOS-I / Platform Name: Advanced Earth Observing Satellite-I (ADEOS-I) Orbit Period: 100.92 minutes Inclination Angle: 98.59 degrees NSCAT SENSOR Name: NASA Scatterometer (NSCAT) Swath Width: 1600.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. |
| Project | Scatterometry Climate Record Pathfinder (SCP) |
| Data Provider | Publisher: PO.DAAC Creator: BYU/SCP Release Place: PO.DAAC Release Date: 2011-Nov-28 Resource: https://podaac-tools.jpl.nasa.gov/drive/files/allData/L3/byu_scp/sigma0enhanced/docs/dLongNscat.html |
| Keyword(s) | sigma naught, sigma-0, backscatter, normalized radar cross-section, radar, nscat, adeos, scatterometer, byu, david long, scp, sir |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
| DIRECT ACCESS | |
| PO.DAAC DRIVE | https://podaac-tools.jpl.nasa.gov/drive/files/allData/nscat/L3/byu_scp/sigma0enhanced PO.DAAC Drive |
| Format | RAW |
| DATA CITATION POLICY | |
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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. NSCAT 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/NSBYU-SNEN0
For more information see Data Citations and Acknowledgments.
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| 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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