globalchange  > 气候变化与战略
DOI: 10.5194/hess-22-5987-2018
论文题名:
Technical note: Mapping surface-saturation dynamics with thermal infrared imagery
作者: Glaser B.; Antonelli M.; Chini M.; Pfister L.; Klaus J.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2018
卷: 22, 期:11
起始页码: 5987
结束页码: 6003
语种: 英语
Scopus关键词: Infrared radiation ; Water quality ; Adaptive thresholding ; Application examples ; Class distributions ; Image characteristics ; Runoff generation ; Statistical approach ; Surface saturation ; Thermal infrared imagery ; Mapping ; imaging method ; infrared imagery ; mapping method ; pixel ; runoff ; saturation ; visualization ; water quality
英文摘要: Surface saturation can have a critical impact on runoff generation and water quality. Saturation patterns are dynamic, thus their potential control on discharge and water quality is also variable in time. In this study, we assess the practicability of applying thermal infrared (TIR) imagery for mapping surface-saturation dynamics. The advantages of TIR imagery compared to other surface-saturation mapping methods are its large spatial and temporal flexibility, its non-invasive character, and the fact that it allows for a rapid and intuitive visualization of surface-saturated areas. Based on an 18-month field campaign, we review and discuss the methodological principles, the conditions in which the method works best, and the problems that may occur. These considerations enable potential users to plan efficient TIR imagery-mapping campaigns and benefit from the full potential offered by TIR imagery, which we demonstrate with several application examples. In addition, we elaborate on image post-processing and test different methods for the generation of binary saturation maps from the TIR images. We test the methods on various images with different image characteristics. Results show that the best method, in addition to a manual image classification, is a statistical approach that combines the fitting of two pixel class distributions, adaptive thresholding, and region growing. © Author(s) 2018.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163133
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作者单位: Glaser, B., Catchment and Eco-Hydrology Research Group, Luxembourg Institute of Science and Technology, 5, avenue des Hauts-Fourneaux, Esch-sur-Alzette, 4362, Luxembourg, Department of Hydrology, University of Bayreuth, Universitätsstr. 30, Bayreuth, 95447, Germany; Antonelli, M., Catchment and Eco-Hydrology Research Group, Luxembourg Institute of Science and Technology, 5, avenue des Hauts-Fourneaux, Esch-sur-Alzette, 4362, Luxembourg, Hydrology and Quantitative Water Management Group, Wageningen University and Research, Droevendaalsesteeg 3a, Building 100, 6708 PB, Wageningen, 6700, Netherlands; Chini, M., Remote Sensing and Ecohydrological Modelling Research Group, Luxembourg Institute of Science and Technology, 5, avenue des Hauts-Fourneaux, Esch-sur-Alzette, 4362, Luxembourg; Pfister, L., Catchment and Eco-Hydrology Research Group, Luxembourg Institute of Science and Technology, 5, avenue des Hauts-Fourneaux, Esch-sur-Alzette, 4362, Luxembourg, Faculty of Science, Communication and Technology, University of Luxembourg, Maison du Savoir, 2 Avenue de l'Université, Esch-sur-Alzette, 4365, Luxembourg; Klaus, J., Catchment and Eco-Hydrology Research Group, Luxembourg Institute of Science and Technology, 5, avenue des Hauts-Fourneaux, Esch-sur-Alzette, 4362, Luxembourg

Recommended Citation:
Glaser B.,Antonelli M.,Chini M.,et al. Technical note: Mapping surface-saturation dynamics with thermal infrared imagery[J]. Hydrology and Earth System Sciences,2018-01-01,22(11)
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