Aquarius Radio Frequency Interference (RFI) Ancillary Dataset V1.0
Aquarius ancillary Radio Frequency Interference (RFI) product used in ADPS mission processing contains monthly-averaged Radio Frequency Interference (RFI) data for ascending/descending passes as detected by the Aquarius radiometers and scatterometer. The data is available for ascending (northward) and descending (southward) passes of the satellite only and ascending/descending passes combined. The values stored in this product are the percentage of radiometer and scatterometer measurements identified as corrupted by interference by the RFI detection algorithms [1,2] within each data point, averaged over one month. An additional RFI flag [3] is used to identify locations where the measured brightness temperature over land exceeds the expected limits of surface emissivity. This flag is not used to remove samples from further processing, but, in generating the radiometer RFI data, 100% RFI is assigned to points where this flag is raised. This product can be used to reproduce the RFI maps available on the Aquarius website at University of Maine (https://aquarius.umaine.edu/cgi/gal_radiometer.htm for the radiometer, and https://aquarius.umaine.edu/cgi/gal_scatterometer.htm for the scatterometer), by plotting the variables Rad_RFI_percent_AscDes_AllBeams and Scat_RFI_percent_AscDes_AllBeams on the latitude/longitude grid. Additionally, the user can generate maps by using only a particular beam or only ascending passes, for example. All combinations of beams and ascending/descending passes are possible. This product contains information about RFI, but it is also relevant for the retrieved Sea Surface Salinity (SSS). Over the ocean, the RFI percentage in this product corresponds to the amount of raw measurements discarded due to RFI contamination before SSS retrieval. Therefore, maps of the RFI percentage can give the user an indication of where RFI is more likely to have affected the quality of SSS retrievals, for a particular month, or for a series of months.
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| Spatial Extent: | Bounding Rectangle: N: 90.0 S: -90.0 E: 180.0 W: -180.0 |
Data Format(s): | Distribution: HDF5 |
| Temporal Extent: | Platform(s): | Aquarius_SAC-D | |
| Data Center(s): | NASA/JPL/PODAAC, Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, N | Instrument(s): | AQUARIUS_RADIOMETER, AQUARIUS_SCATTEROMETER |
| Version: | 1 | ||
- Other Citation Details: Yan Soldo, Paolo De Matthaeis, David Levine, NASA Goddard Space Flight Center (GSFC), 2018-01-30, Aquarius Radio Frequency Interference (RFI) Ancillary Dataset V1.0, 10.5067/AQR00-RFI01, http://podaac.jpl.nasa.gov/salinity/data.html
- USER'S GUIDE: https://podaac-tools.jpl.nasa.gov/drive/files/allData/aquarius/docs/v5/Aquarius_RFI_products_UserGuide.pdf, Aquarius RFI Product User's Guide
- GENERAL DOCUMENTATION: http://podaac-opendap.jpl.nasa.gov/opendap/allData/aquarius/L3/mapped/RFI/, The OPeNDAP base directory location for the collection.
Collection Information
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DOI
10.5067/AQR00-RFI01
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Data Identification
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Processing Level
3
- Quality
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Collection Progress
Complete
Data Dates
| Creation | |
| Last Revision |
Related URLs
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| AQUARIUS SAC-D | No campaigns listed. | No dates provided. |
Temporal Information
Spatial Information
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | CARTESIAN |
Resolution and Coordinate System
Geodetic Model:
| Datum Name | Ellipsoid Name | Semi Major Axis | Flattening Ratio Denominator |
|---|---|---|---|
| World Geodetic System 1984 | WGS 84 | 6378137 | 298.2572236 |
Location Keywords
- GEOGRAPHIC REGION
- GLOBAL
Data Centers
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Aquarius Project NASA/CONAE
PROCESSORThis data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
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NASA/JPL/PODAAC
ARCHIVERThis data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
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Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, N
ARCHIVERPhysical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA
This data center does not have any addresses listed.
(818) 393-7165
Data Contacts
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User Services
Technical ContactUser Services
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NThis contact does not have any addresses listed.
This contact does not have any contact mechanisms listed.
Archive And Distribution Information
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Format: HDF5
Format Type: Native