OIL SPILL DETECTION USING COSMO-SKYMED OVER THE ADRIATIC SEA THE OPERATIONAL POTENTIAL.ppt

IPSC - Institute for the Protection and Security of the Citizenhttp://ipsc.jrc.ec.europa.euhttp://www.jrc.ec.europa.eu

Joint Research Centre (JRC)

IGARSS 2011 – 29th of July Vancouver, Canada 1

OIL SPILL DETECTION USING COSMO-SKYMED OVER THE ADRIATIC SEA:

THE OPERATIONAL POTENTIAL

Michele Vespe : [email protected] Ferraro : [email protected] Posada : [email protected] Greidanus : [email protected] Perkovic : [email protected]


OUTLINE

- INTRODUCTION

- PRODUCTS

- OIL SPILL DETECTION CHAIN

- AN OPERATIONAL CASE

- IMAGE QUALITY

- CONCLUSIONS


INTRODUCTION

AIS


INTRODUCTION

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

Classification output: a potential detection in the Adriatic Sea.

Original Wide Region and pre-processed image


18 May 2011, Two CSK WR images spaced by 12 hours

OPERATIONAL CASE


OPERATIONAL CASE

COSMO-SkyMed Product © ASI Agenzia Spaziale Italiana (2011)


12 HOURS LATER …



AN OPERATIONAL CASE

3/18/2011 4:27 UTC 3/18/2011 16:45 UTC

a

b

c

• 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

ICG - AIS

CO

SM

O-S

kyMed

Pro

du

ct © A

SI A

gen

zia Sp

aziale Italiana (2011)


2011-03-18 04:07

2011-03-18 00:25

2011-03-18 03:222011-03-17

23:47

2011-03-17 21:57

2011-03-17 19:57

2011-03-18 01.40

10 km

2011-03-17 22.34

ICG - AIS

CO

SM

O-S

kyMed

Pro

du

ct © A

SI A

gen

zia Sp


CASE I


CASE I

ICG - AIS

CO

SM

O-S

kyMed

Pro

du

ct © A

SI A

gen

zia Sp



CASE II

AISCOSMO-SkyMed Product

© ASI Agenzia Spaziale Italiana (2011)


2011-03-18 04:50

2011-03-18 01:42 (travelling 5.3 knots, far away from

the detection at T_SAR)

2011-03-18 02:15

@ 21 knots

2011-03-18 00:30

@ 8 knots

2011-03-18 01:36

CASE II

AISCOSMO-SkyMed Product

© ASI Agenzia Spaziale Italiana (2011)


IMAGE QUALITY

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

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

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


Questions?

Thanks for your attention

Michele Vespe : [email protected] Ferraro : [email protected] Posada : [email protected] Greidanus : [email protected] Perkovic : [email protected]

Technology

OIL SPILL DETECTION USING COSMO-SKYMED OVER THE ADRIATIC SEA THE OPERATIONAL POTENTIAL.ppt