IGARSS 2011 – 29th of July Vancouver, Canada Joint Research Centre (JRC) IPSC - Institute for the Protection and Security of the Citizen http://ipsc.jrc.ec.europa.eu http://www.jrc.ec.europa.eu OIL SPILL DETECTION USING COSMO-SKYMED OVER THE ADRIATIC SEA: THE OPERATIONAL POTENTIAL Michele Vespe : [email protected] Guido Ferraro : [email protected] Monica Posada : [email protected] Harm Greidanus : [email protected] Marko Perkovic : [email protected] ‹#› OUTLINE IGARSS 2011 – 29th of July Vancouver, Canada - INTRODUCTION - PRODUCTS - OIL SPILL DETECTION CHAIN - AN OPERATIONAL CASE - IMAGE QUALITY - CONCLUSIONS ‹#› INTRODUCTION IGARSS 2011 – 29th of July Vancouver, Canada AIS ‹#› INTRODUCTION IGARSS 2011 – 29th of July Vancouver, Canada ‹#› CSK Announcement of Opportunity: Satellite surveillance of Oil Pollution in the Adriatic Sea (SOPA) ~100 Wide Region mode images (VV pol) OIL SPILL DETECTION CHAIN IGARSS 2011 – 29th of July Vancouver, Canada ‹#› Original Wide Region and preprocessed image Classification output: a potential detection in the Adriatic Sea. OPERATIONAL CASE IGARSS 2011 – 29th of July Vancouver, Canada 18 May 2011, Two CSK WR images spaced by 12 hours ‹#› OPERATIONAL CASE IGARSS 2011 – 29th of July Vancouver, Canada ‹#› COSMO-SkyMed Product © ASI Agenzia Spaziale Italiana (2011) 12 HOURS LATER … IGARSS 2011 – 29th of July Vancouver, Canada ‹#› COSMO-SkyMed Product © ASI Agenzia Spaziale Italiana (2011) AN OPERATIONAL CASE IGARSS 2011 – 29th of July Vancouver, Canada ‹#› 3/18/2011 4:27 UTC 3/18/2011 16:45 UTC b c a COSMO-SkyMed Product © ASI Agenzia Spaziale Italiana (2011) • CSK1 ascending and CSK3 descending WR acquisitions over the same area off the coast of Otranto, Italy. • The images are about 12 hours apart from each other. Two of the dark features are operational oil spills (‘a’ and ‘b’), whereas the third one (‘c’) is unlikely anthropogenic but probably related to oil seepage, circularly shaped by the currents. CASE I IGARSS 2011 – 29th of July Vancouver, Canada ‹#› COSMO-SkyMed Product © ASI Agenzia Spaziale Italiana (2011) ICG - AIS CASE I IGARSS 2011 – 29th of July Vancouver, Canada ‹#› 10 km 2011-03-18 04:07 2011-03-18 00:25 2011-03-17 21:57 2011-03-17 23:47 ICG - AIS 2011-03-18 03:22 2011-03-18 01.40 COSMO-SkyMed Product © ASI Agenzia Spaziale Italiana (2011) 2011-03-17 22.34 2011-03-17 19:57 CASE I IGARSS 2011 – 29th of July Vancouver, Canada ‹#› COSMO-SkyMed Product © ASI Agenzia Spaziale Italiana (2011) ICG - AIS CASE II IGARSS 2011 – 29th of July Vancouver, Canada AIS ‹#› COSMO-SkyMed Product © ASI Agenzia Spaziale Italiana (2011) CASE II IGARSS 2011 – 29th of July Vancouver, Canada ‹#› 2011-03-18 01:42 (travelling 5.3 knots, far away from the detection at T_SAR) 2011-03-18 01:36 2011-03-18 04:50 2011-03-18 02:15 @ 21 knots 2011-03-18 00:30 @ 8 knots AIS COSMO-SkyMed Product © ASI Agenzia Spaziale Italiana (2011) IMAGE QUALITY IGARSS 2011 – 29th of July Vancouver, Canada ‹#› COSMO-SkyMed Product © ASI Agenzia Spaziale Italiana (2011) Dark feature detectable at shallow incidence angle, 51º (left) to 57º (right) VV polarized WR product. Although the low wind speed (~6.5 to 8 m/s) measured across the area, the possible slick is still detectable at a local incidence angle ~53º. Moreover, even at far range where the incidence angle is around 57º, the sea backscatter is still above the NEσ0. For the present data set, the radiometric resolution measured directly from the image products (< 1.85 dB) is in line with the performance requirements in order to detect low contrast spills. CONCLUSIONS IGARSS 2011 – 29th of July Vancouver, Canada ‹#› The COSMO-SkyMed image quality in terms of sensitivity and radiometric resolution, combined with the X-band increase of oil spill damping ratio, augment its operational detection capabilities over previous C-band systems. The high revisit time of the constellation over the Mediterranean Basin allows for the first time improvements of the: i)monitoring capabilities over the area, and ii)evaluation of the persistency of oil spills, sometimes lower than 12 hours, making COSMO-SkyMed an effective asset for oil spill detection operational services. ACKNOWLEDGEMENTS IGARSS 2011 – 29th of July Vancouver, Canada ‹#› COSMO-SkyMed Anouncement of opportunity: demonstration of COSMO-SkyMed capabilitiews and exploitation for science and civilian applications. Provided by the Italian Space Agency. AIS data where provided by: - Italian Coast Guard, - US Dept. of Transportation / Volpe Center. SAR processing tools were developed within EMSA-JRC collaboration framework on satellite monitoring techniques for oil spill detections IGARSS 2011 – 29th of July Vancouver, Canada ‹#› Questions? Thanks for your attention Michele Vespe : [email protected] Guido Ferraro : [email protected] Monica Posada : [email protected] Harm Greidanus : [email protected] Marko Perkovic : [email protected]