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 S: -90 E: 180.0 W: -180.0 |
Data Format(s): | Distribution: HDF5 |
| Temporal Extent: | Platform(s): | Aquarius_SAC-D | |
| Data Center(s): | NASA/JPL/PODAAC | Instrument(s): | AQUARIUS_RADIOMETER, AQUARIUS_SCATTEROMETER |
| Version: | 1 | ||
- Title: Aquarius RFI Products
- Version: 1
- Creator: Yan Soldo, Paolo De Matthaeis, David Levine
- Publisher: NASA Goddard Space Flight Center (GSFC)
- Release Date: 2018-01-30T00:00:00.000Z
- 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, http://podaac.jpl.nasa.gov/salinity/data.html
- Linkage: http://podaac.jpl.nasa.gov/salinity/data.html
- DATA CITATION POLICY: https://podaac.jpl.nasa.gov/CitingPODAAC, Data Use and Citation Policy
- 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: https://aquarius.nasa.gov/, NASA Aquarius/SAC-D mission website
Collection Information
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DOI
10.5067/AQR00-RFI01
https://dx.doi.org/
- Search for granules from this collection
Data Identification
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Processing Level
3
- Quality
-
Collection Progress
Complete
Data Dates
| Creation | |
| Last Revision |
Related URLs
Other Descriptive Keywords
Ancillary Keywords
- Aquarius
- polar
- sun-synchronous
- RFI
- Radio Frequency Interference
- CONAE
- argentina
Additional Attributes
- Name: earliest_granule_start_time DATETIME Description: Earliest Granule Start Time for dataset.
- Name: latest_granule_end_time DATETIME Description: Latest Granule Stop/End Time for dataset.
- Name: data_latency INT Description: Dataset Latency
- Name: Series Name STRING Description: Dataset citation series name
- Name: Persistent ID STRING Description: Dataset Persistent ID
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| AQUARIUS SAC-D | No campaigns listed. | No dates provided. |
Temporal Information
Temporal Keywords
- 1 Month
Spatial Information
Generic Resolutions
Generic Resolution 1
X Dimension1.0 Decimal Degrees
Y Dimension1.0 Decimal Degrees
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | CARTESIAN |
Resolution and Coordinate System
Projection Type: Gridded
Geodetic Model:
| Datum Name | Ellipsoid Name | Semi Major Axis | Flattening Ratio Denominator |
|---|---|---|---|
| World Geodetic System 1984 | WGS 84 | 6378137 | 298.2572236 |
Horizontal Data Resolution
Spatial Information
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
ARCHIVERPhysical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
Data Contacts
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User Services
Technical ContactUser Services
NASA/JPL/PODAACThis contact does not have any addresses listed.
(818) 393-7165
Archive And Distribution Information
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Format: HDF5
Format Type: Native