Global Aerosol Climatology for the Period August 1981 to December 2009
The GACP aerosol optical thickness and Angstrom exponent dataset was initially created covering the time period August 1981 through June 2005. In 2015 the dataset was updated and extended through December 2009 using NOAA-17 and -18 AVHRR data. Monthly averages of the aerosol optical thickness (AOT) for the full period from August 1981 through December 2009 can be downloaded from gacp.giss.nasa.gov/data/time_ser/. All files are in plain ASCII text and compressed using gzip.
The files format is as follows: the first line indicates the respective year and month and is followed by 180 rows of 360 floating point numbers. Each number represents the monthly average of the corresponding quantity in the respective 1°×1° grid box. The top row represents the northmost grid boxes (89°N-90°N). The first column represents the 180°W-179°W grid boxes. Absence of data is indicated by -1.
Journal articles related to the production of this dataset are listed on the GACP publications page.
Joyce Penner's Summary of the IPCC Model Intercomparison Workshop (PDF)
Brent Holben's Summary of Aerosol Datasets (PDF)
Andrew Lacis' Database of Aerosol Spectral Refractive Indices
- Introduction: PDF
- FORTRAN subroutine for calculating aerosol spectral refractive indices
- Plots of aerosol spectral refractive indices (PDF)
Trish Quinn's ACE 2 Summary (PDF)
Individual Aerosol Datasets
- Thomas P. Charlock
- Rich Ferrare
- Rangasayi N. Halthore
- Andreas Herber
- Peter V. Hobbs
- Brent Holben
- Vladimir Kapustin
- Geoffrey S. Kent
- Beate Liepert
- John M. Livingston
- Tica Novakov
- John Ogren
- Joseph M. Prospero and Dennis L. Savoie
- Patricia Quinn
- Philip B. Russell
- Beat Schmid
- David M. Tratt
- Dave Turner and Rich Ferrare
- Douglas Westphal
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