Atmospheric Science Data Center (ASDC)

Disciplines: Radiation budget, clouds, aerosols, and tropospheric composition
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This is the First Light incoming solar radiation from CERES on Suomi NPP.
First Light incoming solar radiation from CERES on Suomi NPP.

NASA's Atmospheric Science Data Center (ASDC) is in the Science Directorate located at NASA'S Langley Research Center in Hampton, Virginia. The Science Directorate's Climate Science Branch, Atmospheric Composition Branch, and Chemistry and Dynamics Branch work with ASDC to study changes in the Earth and its atmosphere. Data products translate those findings into meaningful knowledge that inspires action by scientists, educators, decision-makers, and the public. ASDC supports over 50 projects and provides access to more than 1,000 archived data sets. These data sets were created from satellite measurements, field experiments, and modeled data products. ASDC projects focus on the Earth science disciplines: Radiation Budget, Clouds, Aerosols, and Tropospheric Composition.

Contact Information

John Kusterer, DAAC Manager
Christopher Harris, Operations Lead
Jeff Walter, Science Data Services Lead
Matthew Tisdale, Data Scientist

Langley Research Center
2 South Wright Street, Building 1268C
Mail Stop 157D
Hampton, VA 23681-2199

Website: https://asdc.larc.nasa.gov/  

ASDC

SAGE III-ISS Level 2 Aerosol Auxiliary Product Release Announcement

Feb 16, 2024

Stratospheric aerosol plays an important role in chemistry and climate. Space-based observations of their optical properties have been key elements of the study of the effects of major volcanic and extreme fire events. To aid users of SAGE III/ISS Level 2 aerosol data, the mission is releasing a Level 2 aerosol auxiliary product that identifies cloud-free observations using the method of Kovilakam et al. 2023 (https://doi.org/10.5194/amt-16-2709-2023). The algorithm is similar to that developed for the Global Space-based Stratospheric Aerosol Climatology (GloSSAC), in which SAGE III/ISS data plays a crucial role alongside other space-based measurements (asdc.larc.nasa.gov/project/GloSSAC ). The new Level 2 aerosol auxiliary product is released at the same cadence as the L2 solar products. For general ease of use, the results are grouped into monthly netcdf file.

Information about these new data products can be found at the following ASDC link:

https://asdc.larc.nasa.gov/project/SAGE III-ISS

These data products are available from the ASDC via the following options:

Earthdata Search

Direct Data Download

OPeNDAP

CALIPSO Lidar Level 2 Blowing Snow Products Release Announcement

Feb 5, 2024
The CALIPSO mission team announces the release of two new CALIOP Level 2 monthly data products:
  • CAL_LID_L2_BlowingSnow_Greenland-Standard-V1-00
  • CAL_LID_L2_BlowingSnow_Antarctica-Standard-V2-00

  • The Blowing Snow monthly data products, developed by Dr. Stephen Palm, isolates blowing snow events determined from the CALIOP lidar atmospheric attenuated backscatter measurements and obtains the spatial and temporal frequency, layer height, and optical depth of these events over Antarctica (updated version 2.00) and Greenland (new version 1.00) data for June 2006 through June 2023. These new products rely on the recently released V4.51 Lidar Level 1 and Lidar Level 2 data products as input.

    Information about these new data products can be found at the following ASDC link:
    https://asdc.larc.nasa.gov/project/CALIPSO

    An in-depth data description document can be found in the following CALIPSO link:
    https://www-calipso.larc.nasa.gov/resources/calipso_users_guide/data_desc/cal_lid_l2_blowingsnow_antarctica_v2-00_desc.php

    These data products are available from the ASDC via the following options:
  • Earthdata Search
  • Direct Data Download
  • OPeNDAP
  • Sample of Preliminary, Unvalidated TEMPO Data Products Now Available on Earthdata Search

    Feb 5, 2024

    To help users become familiar with Tropospheric Emissions: Monitoring of Pollution (TEMPO) data products, the Atmospheric Science Data Center (ASDC) is releasing two weeks of preliminary, unvalidated TEMPO observations obtained during nominal operations from December 17-30, 2023, and eight days of commissioning observations, including first light, obtained during August 2023.

    Data products from this release are processed using the TEMPO Science Data Processing Center (SDPC) software that is operational as of January 2024. The release includes all baseline products except for the ozone profile product, which has not yet been placed into production.

    These products are unvalidated and have not yet reached the Beta Product Maturity level defined in the TEMPO validation plan.

    The products are not optimized for operational use, and anomalies may exist.

    This release is intended only for users to gain familiarity with file format and content.

    These unvalidated TEMPO products should not be used in publications or presentations, and users should refrain from making conclusive public statements regarding the science and applications of the TEMPO data products until the products are designated to be at the provisional validation status according to the validation plan.

    A readme file describing the data products in this preliminary release and associated known issues can be found here.

    For inquiries about this preliminary TEMPO data release, please contact larc-dl-asdc-tempo@mail.nasa.gov or post/view questions on the Earthdata Forum.

    The TEMPO data may be accessed through Earthdata Search.

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