کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6346418 | 1621246 | 2014 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Airborne visualization and quantification of discrete methane sources in the environment
ترجمه فارسی عنوان
تجسم هوایی و اندازه گیری منابع متان گسسته در محیط زیست
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
کامپیوتر در علوم زمین
چکیده انگلیسی
Airborne thermal-infrared (TIR) imaging spectrometry techniques have been used to detect and track methane and other gaseous emissions from a variety of discrete sources in diverse environmental settings, and to enable estimation of the strength of each plume. The high spatial resolution (1-2 m) permits attribution of chemical plumes to their source, while the moderate spectral resolution (44 nm across the 7.5-13.5 μm TIR band) enables identification and quantification of the gaseous plume constituents, even when one is present in considerably greater concentration than the others. Raw imagery was quantitatively analyzed using matched filtering and adaptive coherence techniques. Experiments under controlled conditions demonstrated successful detection of methane point sources at release rates as low as 2.2 kg/h (~ 1 dm3/s at NTP).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Remote Sensing of Environment - Volume 154, November 2014, Pages 74-88
Journal: Remote Sensing of Environment - Volume 154, November 2014, Pages 74-88
نویسندگان
David M. Tratt, Kerry N. Buckland, Jeffrey L. Hall, Patrick D. Johnson, Eric R. Keim, Ira Leifer, Karl Westberg, Stephen J. Young,