| 光谱学与光谱分析 |
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| Research on the Ultraviolet Reflectivity Characteristic of Simulative Targets of Oil Spill on the Ocean |
| FANG Si-an1,2, HUANG Xiao-xian1, YIN Da-yi1, XU Chong1,2, FENG Xin1, FENG Qi1 |
1. Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract The authors set up an experiment instrument to measure the ultraviolet (UV) characteristic of oil spill simulation targets for the marine oil spill. After selecting appropriate conditions for experiments, the authors tested UV reflective spectrum of four simulation targets for oil spill (gasoline, kerosene, diesel fuel, lubricating oil). The authors calculated the UV absolute spectrum reflectivity of all testing targets from the standard white board as reference, whose UV reflectivity was given. With processing and analyzing the data from experiments, the authors got the reflective characteristics of them in contrast to the reflectivity of water, which was measured in the same conditions. All targets were tested from 320 to 400 nm, and UV reflectivity wave-band between 360 and 380 nm was representative. Testing data were shown as follows: (1) The reflectivity of water was from 5.3% to 5.5%. (2) When the thickness of oil film was 400 μm, the reflectivity of gasoline was from 8.5% to 8.8%, 5.4%-5.8% for kerosene, 8.3%-8.4% for diesel fuel, and 9.4%-9.7% for lubricating oil in the same wave-band between 360 and 380 nm. Correspondingly, the indeterminacy of reflectivity was 0.32%, 0.45%, 0.25%, and 0.33% respectively. (3) Hence the thickness of oil film changed, the rule of the UV reflectivity varied depending on the sort of oil spill. The results show that there were some obvious reflectivity differences among oil films and water, which were mainly determined by the sort and thickness of oil film. This experiment method is also fit for the actual oil spill target, and it will fulfill some theory and experimental foundation for inspecting the marine oil spill by UV remote sensing in the future.
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Received: 2009-02-02
Accepted: 2009-05-06
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Corresponding Authors:
FANG Si-an
E-mail: fsa2002@mail.ustc.edu.cn; fangsa@gmail.com
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