Title :
Observation of mesoscale eddies by using SAR data complemented with optical remote sensing and in situ measurements
Author :
Uiboupin, Rivo ; Laanemets, Jaan
Author_Institution :
Marine Syst. Inst., TUT, Tallinn, Estonia
Abstract :
Mesoscale eddies were observed in the Baltic Sea using optical remote sensing, SAR imagery and high resolution in situ measurement from an autonomous system on a passenger ferry. Comparison between SAR data and in situ measurements was carried out to analyze the manifestation of sea surface temperature differences and biological surface slicks on SAR imagery. Correlation between radar backscatter and biological parameters (chlorophyll a and turbidity) was observed. Locations of upwelling related cold eddies and low temperature areas were clearly detectable on radar imagery as well. Therefore, SAR data complemented with in situ measurements enables to observe the evolution of mesoscale eddies in case there is no optical remote sensing data available (i.e.under cloud cover).
Keywords :
geophysical fluid dynamics; ocean temperature; oceanographic regions; remote sensing by radar; synthetic aperture radar; turbidity; Baltic Sea; SAR data; SAR imagery; biological parameters; biological surface slicks; chlorophyll a; cold eddies; high resolution in situ measurement; mesoscale eddy observations; optical remote sensing; radar backscatter; sea surface temperature differences; turbidity; Biomedical optical imaging; Image resolution; Ocean temperature; Optical sensors; Radar imaging; Radar remote sensing; Remote sensing; Sea measurements; Sea surface; Temperature sensors; Baltic Sea; Mesoscale eddy; SAR; SST; chlorophyll a;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5416894
