VIIRS/SNPP Dark Target Aerosol L2 6-Min Swath 6 km V2

Description

The VIIRS/SNPP Dark Target Aerosol L2 6-Min Swath 6 km product provides satellite-derived measurements of Aerosol Optical Thickness (AOT) and their properties over land and ocean, and spectral AOT and their size parameters over oceans every 6 minutes, globally. The Suomi National Polar-orbiting Partnership (SNPP) Visible Infrared Imaging Radiometer Suite (VIIRS) incarnation of the dark target (DT) aerosol product is based on the same DT algorithm that was developed and used to derive products from the Terra and Aqua mission’s MODIS instruments. Two separate and distinct DT algorithms exist. One helps retrieve aerosol information over ocean (dark in visible and longer wavelengths), while the second aids retrievals over vegetated/dark-soiled land (dark in the visible). This orbit-level product (Short-name: AERDT_L2_VIIRS_SNPP) has an at-nadir resolution of 6 km x 6 km, and progressively increases away from nadir given the sensor's scanning geometry and Earth's curvature. Viewed differently, this product's resolution accommodates 8 x 8 native VIIRS moderate-resolution (M-band) pixels that nominally have ~750 m horizontal pixel size. Hence, the Level-2 Dark Target Aerosol Optical Thickness data product incorporates 64 (750 m) pixels over a 6-minute acquisition. Version 2.0 constitutes the latest collection of the L2 Dark Target Aerosol product and contains improvements over its previous collection (v1.1). For more information consult LAADS product description page at: https://ladsweb.modaps.eosdis.nasa.gov/missions-and-measurements/products/AERDT_L2_VIIRS_SNPP Or, Dark Target aerosol team Page at: https://darktarget.gsfc.nasa.gov/

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FVIIRS%2FAERDT_L2_VIIRS_SNPP.002
21 Data product documentation https://darktarget.gsfc.nasa.gov/pubs
21 Search and order products from LAADS website. https://ladsweb.modaps.eosdis.nasa.gov/search/order/2/AERDT_L2_VIIRS_SNPP--5200
21 Direct link to Collection's OPeNDAP directory https://ladsweb.modaps.eosdis.nasa.gov/opendap/RemoteResources/laads/allData/5200/AERDT_L2_VIIRS_SNPP/
33 A pdf version User's Guide for MODIS and VIIRS dark target products. https://ladsweb.modaps.eosdis.nasa.gov/api/v2/content/archives/Document%20Archive/Science%20Data%20Product%20Documentation/DT_Aerosol_UG_MODIS_VIIRS_March_2023.pdf
21 An Agorithm Theoretical Basis Document (ATBD) for MODIS and VIIRS dark target products. https://darktarget.gsfc.nasa.gov/atbd/overview

Tags

  • aerosols
  • atmosphere
  • earth-science

Topics

Categories