Study of the dynamics of the aerosol optical depth in South America from MODIS images of Terra and Aqua satellites (2000-2012)

Noelia Rojas Benavente, Joel Rojas Acuña

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The objective of this work is to study the dynamics of aerosols in South America (Latitude 4°N-24°S and Longitude 83°W-33°W) from monthly averages images aerosol optical thickness (AOT) of 550 nm from the MODIS sensor (TERRA and AQUA) of period 2000 to 2012. We also will hope to using AOT in-situ data from six AERONET stations (Brazil: Rio Branco, Paraná JI, HIGH FORESTA, Campo Grande; Chile: Arica and Bolivia: Santa Cruz) for its validation with MODIS AOT products of period 2000 to 2011. The AOT products and time series were extracted from GIOVANNI software. We have analyzed several time series (MODIS-Terra, MODIS-Aqua and AERONET) for establishing the aerosol's temporal variability over the study area (Latitude 4°N-24°S and Longitude 83°W-33°W). On the one hand, we have found that the AOT data extracted from GIOVANNI show to oscillate between 0.0 to 0.6, having their maximum values during the months of August and September (between 0.45 and 0.5), over a period of thirteen years (2000-2012). This increase is consistent with the onset of fires by farmers in the Amazon region, which is very common during the aforementioned months.

Original languageEnglish
Title of host publicationNucleation and Atmospheric Aerosols - 19th International Conference
Pages625-628
Number of pages4
DOIs
StatePublished - 2013
Externally publishedYes
Event19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013 - Fort Collins, CO, United States
Duration: 23 Jun 201328 Jun 2013

Publication series

NameAIP Conference Proceedings
Volume1527
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013
CountryUnited States
CityFort Collins, CO
Period23/06/1328/06/13

Keywords

  • aerosol optical thickness (AOT)
  • Aerosols
  • MODIS

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