Leifer Ira, Melton Christopher, Daniel William J, Kim Jae Deok, Marston Charlotte
Bubbleology Research International, Inc., Solvang CA 93463, USA.
MethodsX. 2022 Jun 16;9:101756. doi: 10.1016/j.mex.2022.101756. eCollection 2022.
This study demonstrates a method to estimate floating oil slick thickness based on remote sensing of thermal infrared contrast. The approach was demonstrated for thick oil slicks from natural seeps in the Coal Oil Point seep field, offshore southern California. Airborne thermal infrared and visible spectrum remote sensing imagery were acquired along with position and orientation data by the SeaSpires™ science package. Remote sensing data were acquired in the cross-slick direction of oil slick segments that were targeted for collection, termed "collects." A collect consisted of booming, skimming, and offloading the oil slick segment into buckets for analysis at the laboratory. Each collect provided an calibration point of oil thickness versus brightness temperature contrast, , where is the sensor-reported temperature based on the emitted thermal radiation and differs from the true temperature due to the oil's emissivity. is the difference between the oil and oil-free sea surface. Thus, this study is a reverse planned oil-release experiment that demonstrates the value of natural seeps for oil spill science. • • .
本研究展示了一种基于热红外对比度遥感估算浮油厚度的方法。该方法已在加利福尼亚州南部近海煤油点渗油区天然渗漏产生的厚油膜上得到验证。通过SeaSpires™科学套件获取了机载热红外和可见光谱遥感图像以及位置和方位数据。在选定用于采集的油膜段的跨油膜方向上获取遥感数据，这些油膜段称为“采集样本”。一个采集样本包括用围油栏围住、撇取油膜段并将其装入桶中以便在实验室进行分析。每个采集样本都提供了一个油厚度与亮度温度对比度的校准点，其中是传感器根据发射的热辐射报告的温度，由于油的发射率，该温度与真实温度不同。是油面与无油海面之间的温差。因此，本研究是一个反向规划的溢油实验，展示了天然渗漏对溢油科学的价值。• • 。
