Analysis of multi-angle Imaging SpectroRadiometer (MISR) aerosol optical depths over greater India during winter 2001-2004

Larry Di Girolamo, T. C. Bond, D. Bramer, D. J. Diner, F. Fettinger, R. A. Kahn, J. V. Martonchik, M. V. Ramana, V. Ramanathan, P. J. Rasch

Research output: Contribution to journalArticlepeer-review

Abstract

We present the first detailed spatial analysis of a four-year, wintertime visible aerosol optical depth (AOD) climatology from the Multi-angle Imaging SpectroRadiometer (MISR) over greater India. Meteorological fields from the National Centers for Environmental Prediction (NCEP) reanalysis, topographic data, and information related to aerosol source regions are used to explain the spatial patterns in MISR AODs. High AODs are found over much of greater India. The highest AODs are over the northern Indian state of Bihar, where we show that meteorology, topography, and aerosol sources all favor development of a concentrated pool of airborne particles. MISR AODs are validated against five ground-based sites in India and Nepal, revealing similar error characteristics found in other validation studies for the MISR aerosol product.

Original languageEnglish (US)
Pages (from-to)1-5
Number of pages5
JournalGeophysical Research Letters
Volume31
Issue number23
DOIs
StatePublished - Dec 16 2004

Keywords

  • 0305 Atmospheric Composition and Structure: Aerosols and particles (0345, 4801)
  • 0345 Atmospheric Composition and Structure: Pollution - Urban and regional (0305)
  • 3360 Meteorology and Atmospheric Dynamics: Remote sensing
  • 3394 Meteorology and Atmospheric Dynamics: Instruments and techniques
  • 9340 Information Related to Geographic Region: Indian Ocean

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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