Validation, Comparison, and Integration of GOCI, AHI, MODIS, MISR, and VIIRS Aerosol Optical Depth over East Asia During the 2016 Korus-AQ Campaign

Abstract

Recently launched multichannel geostationary Earth orbit (GEO) satellite sensors, such as the Geostationary Ocean Color Imager (GOCI) and the Advanced Himawari Imager (AHI), provide aerosol products over East Asia with high accuracy, which enables the monitoring of rapid diurnal variations and the transboundary transport of aerosols. Most aerosol studies to date have used low Earth orbit (LEO) satellite sensors, such as the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Multiangle Imaging Spectroradiometer (MISR), with a maximum of one or two overpass daylight times per day from midlatitudes to low latitudes. Thus, the demand for new GEO observations with high temporal resolution and improved accuracy has been significant. In this study the latest versions of aerosol optical depth (AOD) products from three LEO sensors - MODIS (Dark Target, Deep Blue, and MAIAC), MISR, and the Visible/Infrared Imager Radiometer Suite (VIIRS), along with two GEO sensors (GOCI and AHI), are validated, compared, and integrated for a period during the Korea-United States Air Quality Study (KORUS-AQ) field campaign from 1 May to 12 June 2016 over East Asia. The AOD products analyzed here generally have high accuracy with high R (0.84-0.93) and low RMSE (0.12-0.17), but their error characteristics differ according to the use of several different surface-reflectance estimation methods. High-accuracy near-real-time GOCI and AHI measurements facilitate the detection of rapid AOD changes, such as smoke aerosol transport from Russia to Japan on 18-21 May 2016, heavy pollution transport from China to the Korean Peninsula on 25 May 2016, and local emission transport from the Seoul Metropolitan Area to the Yellow Sea in South Korea on 5 June 2016.

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Document Details

Document Type
Technical Report
Publication Date
Aug 30, 2019
Accession Number
AD1096877

Entities

People

  • Brent N. Holben
  • Edward J. Hyer
  • Hongqing Liu
  • Hyunkwang Lim
  • Jhoon Kim
  • Michael J. Garay
  • Myungje Choi
  • Pablo E. Saide
  • Seoyoung Lee
  • Thomas F. Eck

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Climate Change
  • Data Analysis
  • Data Sets
  • Earth Orbits
  • Geography
  • Geosynchronous Satellites
  • Grids
  • Ground Based
  • Low Earth Orbits
  • Measurement
  • Optical Properties
  • Particles
  • Particulate Matter
  • Remote Sensing
  • United States
  • Urban Areas

Fields of Study

  • Environmental science

Readers

  • Aerosol Science/Aerosol Physics
  • Astronomy and Astrophysics.
  • Distributed Systems and Data Platform Development

Technology Areas

  • Space