The planktonic microscopic and photosynthesizing organisms inhabiting oceans, globally called phytoplankton, constitute the basis of all oceanic food webs and play a fundamental role in carbon cycling and biogeochemical cycles. Changes in phytoplankton biomass have significant impacts on all the biological, physical and geochemical processes occurring in the aquatic system. Therefore, there has been a rising interest in studying, monitoring, and understanding these variations and their timing at the regional and global scales. Since algae have photosynthetic pigments, such as chlorophyll-a, that absorb and reflect sun light mainly in the visible part of the electromagnetic spectrum, phytoplankton is capable of changing the optical properties of surrounding water, that is the ocean color. This principle allows to estimate chlorophyll-a concentration (proxy for phytoplankton biomass) through measures of the reflected radiation from the upper ocean layer by means of remote sensing. The objective of this study was to analyze the spatio-temporal variations of satellite chlorophyll-a concentration (chl-a) and phytoplankton blooms in the continental shelf and shelf break of the Argentinian patagonic region using the newly implemented temporal modules of GRASS GIS.

Andreo, V.C.; Dogliotti, A.I.; Tauro, C.; Neteler, M.G. (2015). Spatio-temporal variations in chlorophyll-a concentration in the Patagonic continental shelf: an example of satellite time series processing with GRASS GIS temporal modules. In: IGARSS 2015 - IEEE International Geoscience and Remote Sensing Symposium: Remote sensing: understanding the earth for a safer world, Milan, Italy, July 26-31, 2015. url: http://www.igarss2015.org/ handle: http://hdl.handle.net/10449/26017

Spatio-temporal variations in chlorophyll-a concentration in the Patagonic continental shelf: an example of satellite time series processing with GRASS GIS temporal modules

Andreo, Veronica Carolina;Neteler, Markus Georg
2015-01-01

Abstract

The planktonic microscopic and photosynthesizing organisms inhabiting oceans, globally called phytoplankton, constitute the basis of all oceanic food webs and play a fundamental role in carbon cycling and biogeochemical cycles. Changes in phytoplankton biomass have significant impacts on all the biological, physical and geochemical processes occurring in the aquatic system. Therefore, there has been a rising interest in studying, monitoring, and understanding these variations and their timing at the regional and global scales. Since algae have photosynthetic pigments, such as chlorophyll-a, that absorb and reflect sun light mainly in the visible part of the electromagnetic spectrum, phytoplankton is capable of changing the optical properties of surrounding water, that is the ocean color. This principle allows to estimate chlorophyll-a concentration (proxy for phytoplankton biomass) through measures of the reflected radiation from the upper ocean layer by means of remote sensing. The objective of this study was to analyze the spatio-temporal variations of satellite chlorophyll-a concentration (chl-a) and phytoplankton blooms in the continental shelf and shelf break of the Argentinian patagonic region using the newly implemented temporal modules of GRASS GIS.
Chlorophyll-a
Phytoplankton
Satellite
Time series
2015
Andreo, V.C.; Dogliotti, A.I.; Tauro, C.; Neteler, M.G. (2015). Spatio-temporal variations in chlorophyll-a concentration in the Patagonic continental shelf: an example of satellite time series processing with GRASS GIS temporal modules. In: IGARSS 2015 - IEEE International Geoscience and Remote Sensing Symposium: Remote sensing: understanding the earth for a safer world, Milan, Italy, July 26-31, 2015. url: http://www.igarss2015.org/ handle: http://hdl.handle.net/10449/26017
File in questo prodotto:
File Dimensione Formato  
poster_andreo_igarss_2015_chlorophyll-a-ocean.pdf

solo utenti autorizzati

Descrizione: Poster PDF
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 5.38 MB
Formato Adobe PDF
5.38 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
andreo2015_chlorophyll_igarss.pdf

solo utenti autorizzati

Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 4.36 MB
Formato Adobe PDF
4.36 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10449/26017
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 3
social impact