Academic Journals Database
Disseminating quality controlled scientific knowledge

Concentration of chlorhophyll-a and the limit of the photic zone in the Third River reservoir (Córdoba-Argentina), using images from CBERS-2B satellite

ADD TO MY LIST
 
Author(s): Matias Bonansea | Claudia Ledesma | Claudia Rodriguez | Angel Ramon Sanchez Delgado

Journal: Ambiente e Água : An Interdisciplinary Journal of Applied Science
ISSN 1980-993X

Volume: 7;
Issue: 3;
Start page: 61;
Date: 2012;
Original page

Keywords: remote sensors | water resources | ACP

ABSTRACT
The satellite images provided by remote sensors represent an important tool for monitoring, controlling and administering water resources. The aim of this work was to model the spatial distribution of the concentration of chlorhophyll-a and the limit of the photic zone in the Rio Tercero reservoir (Córdoba-Argentina), using images from CBERS-2B satellite and a geographical information system (SIG). We selected 15 samples places wherefrom we measured physical, chemical and biological parameters during the fall of 2008. By using a georeferenced image from sensor CBERS-2B and performing an analysis of the principal components (ACP), we were able to identify associations between variables and reflectance values of the satellite bands. Based on these associations and with simple regression models, we were able to know the spatial distribution of the variables: concentration of chlorophyll-a (R2 = 0, 73) and the limit of the photic zone (R2 = 0, 78) in the reservoir as a whole. We may conclude thata there exists a negative correlation between the concentration of chlorophyll-a and the water transparency in reservoir Rio Tercero, as well as that the sensor used allows us to evaluate the quality of the water in a relative short time.
RPA Switzerland

RPA Switzerland

Robotic process automation

    

Tango Jona
Tangokurs Rapperswil-Jona