Fuel spills are a very common occurrence globally and the traditional methods of identification and remediation can be expensive, hazardous, and time consuming. Hyperspectral remote sensing is a technology that utilizes images from a variety of air vehicles or satellites where each pixel in the image contains a quantitative reflected light spectrum that is a function of the materials in view. Laboratory and field experiments are desirable for building an effective reflective spectra library. This project evaluated the reflective spectra of gasoline, diesel, and jet fuel A on the spectrally bright Ottawa sand and a darker silica-rich sand from New Mexico (New Mexico 15) under room temperature and cold weather conditions. For the room temperature experiments, gasoline was only detectable to 90 min after initial application, diesel fuel was detectable out to 11 weeks on Ottawa sand, as well as the New Mexico 15 samples. Jet fuel A was detectable out to 5 weeks on Ottawa sand and the New Mexico 15 samples. For all cold condition experiments, gasoline was identifiable on substrates up until the 72-h mark largely and diesel fuel and jet fuel A were identifiable on each substrate out to 5 weeks. Regressions were fit to vaporization curves for room temperature and cold weather conditions and all were logarithmic in nature except for jet fuel A under lab and cold weather conditions which were best fit by power functions. Unexpectedly, diesel fuel evaporated more under cold weather conditions. Results indicate that fuel-substrate experiments can provide critical data for hyperspectral remote sensing investigations and future detailed work on fuels and other organic compounds is warranted.

燃油泄漏在全球范围内非常普遍，传统的识别和补救方法可能既昂贵，危险又耗时。高光谱遥感是一种利用来自各种飞行器或卫星的图像的技术，其中图像中的每个像素都包含定量的反射光谱，该光谱是所查看材料的函数。建立有效的反射光谱库需要实验室和现场实验。该项目评估了在室温和寒冷天气条件下，来自新墨西哥州（新墨西哥州15）的光谱明亮的渥太华砂和深色的富含二氧化硅的砂在汽油，柴油和喷气燃料A的反射光谱。对于室温实验，汽油在初次使用后只能检测到90分钟，在渥太华的沙子上以及新墨西哥州的15个样本中，柴油可检测到长达11周。在渥太华的沙子和新墨西哥州的15个样品上，可以检测到喷气燃料A长达5周。对于所有寒冷条件下的实验，直到72小时标记为止，在基材上都可以识别出汽油，直到5周，在每个基材上都可以识别出柴油和喷气燃料A。回归曲线适合于室温和寒冷天气条件下的汽化曲线，并且本质上都是对数的，除了在实验室和寒冷天气条件下最适合幂函数的喷气燃料A以外。出乎意料的是，在寒冷的天气条件下，柴油蒸发得更多。