AIRS2CCF_NRT_006

AIRS/Aqua L2 Near Real Time (NRT) Cloud-Cleared Infrared Radiances (AIRS-only) V006 (AIRS2CCF_NRT) at GES DISC

Version 006 NRT
  • Abstract
    The Atmospheric Infrared Sounder (AIRS) Level 2 Near Real Time (NRT) Cloud-Cleared Infrared Radiances (AIRS-only) product (AIRS2CCF_NRT_006) differs from the routine product (AIRS2CCF_006) in four 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, (3) if the forecast surface pressure is unavailable, a surface climatology is used, and (4) no ice cloud properties retrievals are performed. The consequences of these differences are described in the AIRS Near Real Time (NRT) data products document. The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua. In combination with the Advanced Microwave Sounding Unit (AMSU) and the Humidity Sounder for Brazil (HSB), AIRS constitutes an innovative atmospheric sounding group of visible, infrared, and microwave sensors. This product is produced using AIRS IR only because the radiometric noise in AMSU channel 4 started to increase significantly (since June 2007). Cloud-Cleared Radiances contain calibrated, geolocated channel-by-channel AIRS infrared radiances (milliWatts/m2/cm-1/steradian) that would have been observed within each AMSU footprint if there were no clouds in the FOV and produced along with the AIRS Standard Product, as they are the radiances used to retrieve the Standard Product. Nevertheless, they are an order of magnitude larger in data volume than the remainder of the Standard Products and, many Standard Product users are expected to have little interest in the Cloud Cleared Radiance. For these reasons they are a separate output file. The AIRS2CCF_NRT_006 products are stored in files (often referred to as "granules") that contain 6 minutes of data, 30 footprints across track by 45 lines along track.
  • 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.
  • Version Description
    Not provided

Data Identification Fields:

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    Data Dates
    Creation
    Last Revision
    Processing Level

    2

    Quality
    Collection Progress

    In Work

    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

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • INFRARED WAVELENGTHS
    • INFRARED RADIANCE
    • CLOUD-CLEARED INFRARED RADIANCE
Other Descriptive Keywords
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Ancillary Keywords
  • CALIBRATED
  • EOSDIS
  • GEOLOCATED
  • INFRARED
  • RADIANCE
  • LANCE
  • NRT
  • RELATIVE_START_DATE: -7
ISO Topic Categories
  • IMAGERY/BASE MAPS/EARTH COVER
Additional Attributes
  • Data Granularity
    STRING
    The time coverage of individual data granules.
    Resolution Range Begin Range End Unit of Measure Accuracy

  • Discipline
    STRING
    Not provided
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  • Original.xsi:schemaLocation
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Acquisition Information Fields:

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Platforms
  • Earth Observation Satellites
    AQUA
    Instruments
    • AIRS
Projects
Project Short Name Campaigns Project Dates
AQUA No campaigns listed. No dates provided.
LANCE No campaigns listed. No dates provided.

Temporal Information Fields:

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Spatial Information Fields:

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Location Keywords
    • OCEAN
    • ATLANTIC OCEAN
    • OCEAN
    • INDIAN OCEAN
    • OCEAN
    • PACIFIC OCEAN
    • GEOGRAPHIC REGION
    • GLOBAL
    • GEOGRAPHIC REGION
    • GLOBAL LAND
    • GEOGRAPHIC REGION
    • GLOBAL OCEAN

Data Centers

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  • NASA/GSFC/SED/ESD/GCDC/GESDISC
    ARCHIVER
    Goddard 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
    Metadata Author
    ED ESFANDIARI

    Goddard Earth Sciences Data and Information Services Center
    Code 610.2
    NASA Goddard Space Flight Center
    Greenbelt, MD 20771

    • Email
    • 301-614-5960
    • 301-614-5268
  • Data Center Contact
    GES 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

    • Email
    • 301-614-5224
    • 301-614-5268

Collection Citations Fields:

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