AIRS/Aqua L1B Near Real Time (NRT) Visible/Near Infrared (VIS/NIR) quality assurance subset V005 (AIRVBQAP_NRT) at GES DISC
The AIRS Level 1B Near Real Time (NRT) product (AIRVBQAP_NRT_005) differs from the routine product (AIRVBQAP_005) in 2 ways to meet the three hour latency requirements of the Land Atmosphere NRT Capability Earth Observing System (LANCE): (1) The NRT granules are produced without previous or subsequent granules if those granules are not available within 5 minutes, (2) the predictive ephemeris/attitude data are used rather than the definitive ephemeris/attitude. The consequences of these differences are described in the AIRS Near Real Time (NRT) data products document. The Atmospheric Infrared Sounder (AIRS) Visible/Near Infrared (VIS/NIR) instrument in combination with the AIRS Infrared Spectrometer, the Advanced Microwave Sounding Unit (AMSU) and the Humidity Sounder for Brazil (HSB) constitute an innovative atmospheric sounding group aboard the Earth Observing System (EOS) Aqua platform in a near-polar Sun-synchronous orbit with a 1:30 AM/PM equator crossing time and an ~705 km altitude. The AIRS Visible/Near Infrared (VIS/NIR) Level 1B QA Subset contains Quality Assurance (QA) parameters that a may use of filter AIRS VIS/NIR Level 1B radiance data to create a subset of analysis. It includes "state" that user should check before using any VIS/NIR Level 1B data radiance and "glintlat", "glintlon", and "sun_glint_distant" that users can use to check for possibility of solar glint contamination. AIRS VIS/NIR Level 1B radiance data can be found in AIRVBRAD.
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| Spatial Extent: | Bounding Rectangle: N: 90 S: -90 E: 180 W: -180 |
Data Format(s): | Distribution: HDF-EOS |
| Temporal Extent: | Platform(s): | Aqua | |
| Data Center(s): | NASA/GSFC/SED/ESD/GCDC/GESDISC | Instrument(s): | AIRS |
| Version: | 005 | ||
- Title: AIRS/Aqua L1B Near Real Time (NRT) Visible/Near Infrared (VIS/NIR) quality assurance subset V005
- Version: 005
- Creator: AIRS Science Team/Moustafa Chahine
- Publisher: Goddard Earth Sciences Data and Information Services Center (GES DISC)
- Release Date: 2007-07-26T00:00:00.000Z
- Linkage: https://disc.gsfc.nasa.gov/datacollection/AIRVBQAP_NRT_005.html
Not Applicable
Near Real Time (NRT) dataset
- READ-ME: https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.3_ScienceDataProductDocumentation/3.3.4_ProductGenerationAlgorithms/README.AIRVBRAD.pdf, README Document
- GENERAL DOCUMENTATION: https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.3_ScienceDataProductDocumentation/3.3.5_ProductQuality/nrt_memo_v6.pdf, Memo on NRT vs Standard Product
- GENERAL DOCUMENTATION: https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.7_ScienceDataProductValidation/V5_CalVal_Status_Summary.pdf, Summary of validation status of products
- ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD): https://eospso.gsfc.nasa.gov/sites/default/files/atbd/AIRS_L1B_ATBD_Part_2.pdf
Collection Information
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Purpose
The Near Real Time (NRT) product is for users whose primary interest is the low latency for data availability. While standard data products are available within 3 days of observation, NRT data are usually available within 3 hours of observation. - Search for granules from this collection
Data Identification
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Processing Level
1B
- Quality
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Collection Progress
Active
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Use Constraints
The Earth Observing System Data and Information System (EOSDIS) data use policy for NASA data can be accessed at https://earthdata.nasa.gov/earth-observation-data/data-use-policy. For information on how to properly cite and acknowledge data from the NASA GES DISC, refer to https://disc.gsfc.nasa.gov/information/documents?title=data-policy.
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Access Constraints
You must register using the EOSDIS User Registration System in order to access LANCE NRT AIRS data. You can register at https://urs.eosdis.nasa.gov/users/new
Data Dates
| Creation | |
| Last Revision |
Related URLs
Other Descriptive Keywords
Ancillary Keywords
- RADIANCE
- VISIBLE
- FLUX
- EOSDIS
- NRT
- RELATIVE_START_DATE: -7
ISO Topic Categories
- IMAGERY/BASE MAPS/EARTH COVER
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| Aqua | No campaigns listed. | No dates provided. |
| LANCE | No campaigns listed. | No dates provided. |
Temporal Information
Spatial Information
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | CARTESIAN |
Location Keywords
- GEOGRAPHIC REGION
- GLOBAL
Data Centers
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NASA/GSFC/SED/ESD/GCDC/GESDISC
ARCHIVERGoddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, 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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ED ESFANDIARI
Metadata AuthorED ESFANDIARI
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Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt, MD 20771
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GES DISC HELP DESK SUPPORT GROUP
Data Center ContactGES DISC HELP DESK SUPPORT GROUP
NASA/GSFC/SED/ESD/GCDC/GESDISC-
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt, MD 20771
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Archive And Distribution Information
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Format: HDF-EOS
Format Type: Native
Media: Online Archive
Fees: None
File Distribution Information
There is no direct distribution information for this collection.