학술논문

How Environmental Conditions Influence the Sar Detectability of a Heavy Fuel Leakage from a Ship Wreck
Document Type
Conference
Source
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS Geoscience and Remote Sensing Symposium IGARSS , 2021 IEEE International. :1650-1653 Jul, 2021
Subject
Aerospace
Geoscience
Photonics and Electrooptics
Signal Processing and Analysis
Viscosity
Temperature sensors
Sea surface
Oils
Radar polarimetry
Sensors
Fuels
Synthetic Aperture Radar
marine oil pollution
ship wreck
heavy fuel
Black Sea
surface wind
significant wave height
sea bottom currents
surface and bottom temperature
Language
ISSN
2153-7003
Abstract
We use 14 years of spaceborne SAR imagery from Sentinel-1A/B, ALOS-1/2 PALSAR-1/2, and Envisat ASAR to show that heavy fuel was leaking out of a ship wreck off the Bulgarian Black Sea coast. The oil spills were detected only in the summer months, when the sea bottom temperature exceeded 10 °C, indicating that the viscosity of the heavy fuel is too high at lower temperatures. Moreover, periods of high winds, hence of high sea state, were preceding each oil spill detecting, which indicates that mechanical action on the wreck's hull was needed to initiate further leakage.