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2023•Unpublished venueRequires access

Thermal Infrared Detection of Oil Film Thickness at Sea: Airborne and Portable Thermal Imagers are Used in One Experiment

Meiqi Wang, Junfang Yang, Shanwei Liu, Jianhua Wan, Jie Zhang

Open publisher page 4 citations

Abstract

Through the oil spill simulation experiment of designing outdoor small scenes, this paper finds that: (1) the thermal infrared image obtained by the two sensors shows that the diurnal variation trend of the thermal infrared brightness temperature (BT) value of different OFT is the same, but the values will be different depending on the sensitivity of the sensor and the shooting angle. (2) the larger the oil film thickness (OFT), the larger the brightness temperature difference (BTD) between oil and water in the daytime, while the relationship between OFT and BTD is not monotonous in the nighttime. When the OFT is less than 317μm, the larger the OFT, the smaller the BTD, and when OFT is greater than 317μm, the conclusion is reversed. (3) there is a strong correlation between OFT and BTD. The correlation is greatest around noon, which is most conducive to the detection of OFT.

About this research paper

What this paper is about

Through the oil spill simulation experiment of designing outdoor small scenes, this paper finds that: (1) the thermal infrared image obtained by the two sensors shows that the diurnal variation trend of the thermal infrared brightness temperature (BT) value of different OFT is the same, but the values will be different depending on the sensitivity of the sensor and the shooting angle. (2) the larger the oil film thickness (OFT), the larger the brightness temperature difference (BTD) between oil and water in the daytime, while the relationship between OFT and BTD is not monotonous in the nighttime. When the OFT is less than 317μm, the larger the OFT, the smaller the BTD, and when OFT is greater than 317μm, the conclusion is reversed. (3) there is a strong correlation between OFT and BTD. The correlation is greatest around noon, which is most conducive to the detection of OFT.

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OpenAlex reports 4 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Through the oil spill simulation experiment of designing outdoor small scenes, this paper finds that: (1) the thermal infrared image obtained by the two sensors shows that the diurnal variation trend of the thermal infrared brightness temperature (BT) value of different OFT is the same, but the values will be different depending on the sensitivity of the sensor and the shooting angle. (2) the larger the oil film thickness (OFT), the larger the brightness temperature difference (BTD) between oil and water in the daytime, while the relationship between OFT and BTD is not monotonous in the nighttime. When the OFT is less than 317μm, the larger the OFT, the smaller the BTD, and when OFT is greater than 317μm, the conclusion is reversed. (3) there is a strong correlation between OFT and BTD. The correlation is greatest around noon, which is most conducive to the detection of OFT.

Key concepts: Noon, Daytime, Brightness, Brightness temperature, Thermal infrared, Thermal, Infrared, Positive correlation

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Thermal Infrared Detection of Oil Film Thickness at Sea: Airborne and Portable Thermal Imagers are Used in One Experiment — Research Paper | ScholarLens