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

doi:10.1029/2004GL021273

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

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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 language	English (US)
Pages (from-to)	1-5
Number of pages	5
Journal	Geophysical Research Letters
Volume	31
Issue number	23
DOIs	https://doi.org/10.1029/2004GL021273
State	Published - 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
General Earth and Planetary Sciences

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10.1029/2004GL021273

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

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.",

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

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doi = "10.1029/2004GL021273",

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T1 - Analysis of multi-angle Imaging SpectroRadiometer (MISR) aerosol optical depths over greater India during winter 2001-2004

AU - Di Girolamo, Larry

AU - Bond, T. C.

AU - Bramer, D.

AU - Diner, D. J.

AU - Fettinger, F.

AU - Kahn, R. A.

AU - Martonchik, J. V.

AU - Ramana, M. V.

AU - Ramanathan, V.

AU - Rasch, P. J.

PY - 2004/12/16

Y1 - 2004/12/16

N2 - 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.

AB - 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.

KW - 0305 Atmospheric Composition and Structure: Aerosols and particles (0345, 4801)

KW - 0345 Atmospheric Composition and Structure: Pollution - Urban and regional (0305)

KW - 3360 Meteorology and Atmospheric Dynamics: Remote sensing

KW - 3394 Meteorology and Atmospheric Dynamics: Instruments and techniques

KW - 9340 Information Related to Geographic Region: Indian Ocean

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JO - Geophysical Research Letters

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

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