SMAP Enhanced L1C Radiometer Half-Orbit 9 km EASE-Grid Brightness Temperatures V003
This enhanced Level-1C (L1C) product contains calibrated and geolocated brightness temperatures acquired by the Soil Moisture Active Passive (SMAP) radiometer during 6:00 a.m. descending and 6:00 p.m. ascending half-orbit passes. This product is derived from SMAP Level-1B (L1B) interpolated antenna temperatures. Backus-Gilbert optimal interpolation techniques are used to extract enhanced information from SMAP antenna temperatures before they are converted to brightness temperatures. The resulting brightness temperatures are posted to an Earth-fixed, 9 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0) in three projections: global cylindrical, Northern Hemisphere azimuthal, and Southern Hemisphere azimuthal.
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| Spatial Extent: | Bounding Rectangle: N: 85.044 S: -85.044 E: 180.0 W: -180.0 |
Data Format(s): | Distribution: HDF5 |
| Temporal Extent: | Platform(s): | SMAP | |
| Data Center(s): | NASA/JPL/SMAP | Instrument(s): | SMAP L-BAND RADIOMETER |
| Version: | 003 | ||
- Type: ECHO ORDERSDescription: NSIDC_ECS EOSDIS ECHO ORDERS Service Implementation
- Type: EGI - No ProcessingDescription: Using this service, data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system, or through our Application Programming Interface (API). This API offers you the ability to programmatically order and bulk-download data using temporal and spatial filters without the need to script against NSIDC's data directory structure. This may be valuable if you are interested in incorporating data access commands into your analysis or visualization code.
- Type: ESIDescription: NSIDC_ECS ESI EOSDIS Service Implementation of the SMAPL1L2 Subsetter
- Type: NOT PROVIDEDDescription: Our subscription service automatically sends you new data as they are delivered from active NASA satellite missions. This service is convenient if you require the latest data for a specific region, but you do not want to actively search and order data files regularly. Advanced customization services including reformatting, reprojection, and subsetting are also available with your subscription.
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- Type: NOT PROVIDEDDescription: Allows users to download select NSIDC Earth Observing System (EOS) DAAC data directly via HTTPS. Products are available from AMSR, AMSR-E, ASO, Aquarius, HMA, IceBridge, ICESat/GLAS, ICESat-2, MEaSUREs, MODIS, NIMBUS, NISE, Passive Microwave, SnowEx, SMAP and VIIRS.Show MoreShow Less
- Type: Downloadable ToolDescription: NSIDC provides software and data files for geolocating EASE-Grid data sets at NSIDC. The geolocation software are contains routines in IDL, FORTRAN and C for converting between latitudes/longitude coordinates and row/column coordinates for both EASE-Grid and EASE-Grid 2.0. The geolocation data files are Look-up files that contain arrays with the latitude and longitude at the center of each EASE-Grid and EASE-Grid 2.0 grid cell.
- Type: Downloadable ToolDescription: Panoply is a desktop application that interactively plots georeferenced and other arrays encoded in the netCDF, HDF and GRIB file formats. With Panoply you can: Slice and plot geo-referenced latitude-longitude, latitude-vertical, longitude-vertical, time-latitude or time-vertical arrays from larger multidimensional variables; slice and plot "generic" 2D arrays from larger multidimensional variables; slice 1D arrays from larger multidimensional variables and create line plots; combine two geo-referenced arrays in one plot by differencing, summing or averaging; plot lon-lat data on a global or regional map using any of over 100 map projections or make a zonal average line plot; overlay continent outlines or masks on lon-lat map plots; use any of numerous color tables for the scale colorbar, or apply your own custom ACT, CPT, or RGB color table.
- Type: Web User InterfaceDescription: This application allows you to interactively browse global satellite imagery within hours of it being acquired. You can also save it, share it, and download the underlying data.
- Type: Downloadable ToolDescription: A Jupyter notebook exploring data coverage, size, and customization service availability along with direct data download utilizing the NSIDC DAAC's Data Access and Service API.
- Type: Web User InterfaceDescription: Search and filter data files for a given data set using a map-based interface. Data filtering options include filename wildcard, start and end date, and spatial area as bounding box, polygon, or geospatial file import.
- Type: Web User InterfaceDescription: An interactive tool that estimates when satellites have passed, or will pass, over an area of the Earth. Users specify latitude and longitude or select a location on the map for which to calculate a 5-day sequence of satellite overpasses.
- Type: Web User InterfaceDescription: NASA Earthdata Search is a map-based interface where users can search for Earth science data, filter results based on spatial and temporal constraints, and when available, order data with customizations including re-formatting, re-projecting, and spatial and parameter subsetting. Thousands of Earth science data sets are accessible from 12 science-oriented Distributed Active Archive Centers (DAACs). The NSIDC DAAC distributes several hundred data sets in NASA Earthdata Search, many with customization options.
- Type: Downloadable ToolDescription: HDFView is a visual tool for browsing and editing HDF4 and HDF5 files. Using HDFView, you can view a file hierarchy in a tree structure, create new files, add or delete groups and datasets, view and modify the content of a dataset, and add, delete and modify attributes.
- Type: Web User InterfaceDescription: A search interface providing users the ability to search amongst all data sets cataloged by NSIDC.Show MoreShow Less
- Title: SMAP Enhanced L1C Radiometer Half-Orbit 9 km EASE-Grid Brightness Temperatures V003
- Version: 003
- Publisher: NASA National Snow and Ice Data Center Distributed Active Archive Center
10.5067/XB8K63YM4U8O
- GENERAL DOCUMENTATION: https://doi.org/10.5067/XB8K63YM4U8O, Includes a user's guide, supplemental documents like ATBDs and academic papers, How Tos, FAQs, etc.
Collection Information
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Purpose
Scientific Research - Search for granules from this collection
Data Identification
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Processing Level
Level 1C
Sensor units with georeferencing parameters
- Quality
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Collection Progress
Planned
Related URLs
Other Descriptive Keywords
ISO Topic Categories
- GEOSCIENTIFIC INFORMATION
- CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Additional Attributes
- Name: SIPSMetGenVersion STRING Description: The version of the SIPSMetGen software used to produce the metadata file for this granule
- Name: identifier_product_doi STRING Description: Digital object identifier that uniquely identifies this data product
- Name: identifier_product_doi_authority STRING Description: URL of the digital object identifier resolving authority
Acquisition Information
Temporal Information
Spatial Information
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | GEODETIC |
Location Keywords
- GEOGRAPHIC REGION
- GLOBAL
Data Centers
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NASA NSIDC DAAC
ARCHIVER-
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder, CO 80309-0449
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NASA NSIDC DAAC
DISTRIBUTOR-
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder, CO 80309-0449
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NASA/JPL/SMAP
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/SMAP
ORIGINATORThis data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
Data Contacts
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NSIDC Services
Technical ContactNSIDC Services
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CIRES, 449 UCB
University of Colorado
Boulder, CO 80309-0449
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Julian Chaubell
Technical ContactJulian Chaubell
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M/S 300-235
4800 Oak Grove Drive
Pasadena, CA 91109
818 354 4321
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Steven Chan
Technical ContactSteven Chan
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4800 Oak Grove Drive
Pasadena, CA 91109
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Roy Dunbar
Technical ContactRoy Dunbar
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Pasadena, CA 91109
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Jinzheng Peng
Technical ContactJinzheng Peng
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Greenbelt, MD 20771
This contact does not have any contact mechanisms listed.
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Simon Yueh
Technical ContactSimon Yueh
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Pasadena, CA 91109
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NASA National Snow and Ice Data Center Distributed Active Archive Center
User ServicesNASA National Snow and Ice Data Center Distributed Active Archive Center
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Boulder, Colorado
This contact does not have any contact mechanisms listed.
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Archive And Distribution Information
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Format: HDF5
Format Type: Native
Format Description: HTTPS 50 MB
File Distribution Information
There is no direct distribution information for this collection.