IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Ecosystem Service of Regulation at the Antares Regions ? Socioeconomic Implications: EPEA-Argentina case study
Autor/es:
CHIDIAK, MARTINA; DOGLIOTTI, ANA; RUIZ, MARÍA GUILLERMINA; LUTZ, VIVIAN; NEGRI, RUBÉN; SILVA, RICARDO; FROUIN, ROBERT; FILIPELLO, CECILIA
Lugar:
College Park
Reunión:
Conferencia; GEO Blue Planet Symposium; 2017
Institución organizadora:
GEO BLUE PLANET
Resumen:
Atmospheric accumulation of CO2 due to anthropogenic actions has increased the need to better understand the global carbon cycle. It is estimated that uptake by the global ocean has reduced the increase in CO2 emissions by around 26%. Nevertheless, this uptake is not homogeneous; it may vary as a result of environmental conditions and to biological changes, specially the types and physiological response of phytoplankton. Phytoplanktonic photosynthesis provides in this way an ecosystem service of regulation, which for the most part remains "invisible" to society since it is not measured (quite in contrast to the case of carbon sequestration by forests, a regulation service that is regularly measured).In this case study we make use of information from Argentina obtained from different platforms/sources: a) in situ data (chlorophyll-a concentration, proportion of three size-classes of phytoplankton) from the coastal time series EPEA; b) satellite data from MODIS-Aqua (chlorophyll-a concentration); c) modeled data from NEMO (chlorophyll-a concentration, primary production, differential partial pressure of CO2 between the ocean and the atmosphere or pCO2); d) national inventories of GHG emissions. Our preliminary results have shown a trend towards an increase in chlorophyll-a concentration at EPEA (both from in situ and satellite estimations) during the period 2000-2015. Furthermore, this increase was more pronounced for the