Spatial and temporal variations of atmospheric aerosol optical thickness in northwestern Mexico
Por:
Llamas R.M., Bonifaz R., Valdés M., Riveros-Rosas D., Leyva-Contreras A.
Publicada:
1 ene 2013
Resumen:
The purpose of this paper was to study aerosol particles in the Northwestern region of Mexico (NWM) through Aerosol Optical Thickness (AOT) parameter in the atmosphere. This parameter represents one of the extinction coefficients of solar radiation and the rate of suspended particles in the atmosphere. For determination of AOT, we considered the use of remote sensors outside of the atmosphere. In particular, Moderate Resolution Imaging Spectroradiometer (MODIS) which can measure the atmospheric AOT thickness. Data from the MODIS sensor must be validated before they are considered reliable. For this task, we required surface measurements to obtain a correlation with the data acquired with the remote radiometer. The paper describes the validation process performed for data obtained with MODIS through measurements provided by an AErosol RObotic NETwork (AERONET) photometer located in the city of Hermosillo, Sonora, NWM. Additionally, we carried out a temporal analysis based on the behavior of the AOT graphics and spatial analysis supported in maps with sufficient information.
Filiaciones:
Llamas R.M.:
Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), Av. Liga Periférico-Insurgentes Sur 4903, Del. Tlapan, 14010 México D.F, Mexico
Bonifaz R.:
Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria s/n, 04510, México D.F, Mexico
Valdés M.:
Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria s/n, 04510, México D.F, Mexico
Riveros-Rosas D.:
Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria s/n, 04510, México D.F, Mexico
Leyva-Contreras A.:
Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria s/n, 04510, México D.F, Mexico
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