Thermal infrared imaging for the detection of relatively warm lacustrine groundwater discharge at the surface of freshwater bodies
Thermal infrared imaging for the detection of relatively warm lacustrine groundwater discharge at the surface of freshwater bodies
复制标题
热红外成像用于检测淡水体表面相对温暖的湖泊地下水排放
DOI:
10.1016/j.jhydrol.2018.05.004
复制
发表时间:
2018
影响因子:
6.4
通讯作者:
Marruedo Arricibita A
中科院分区:
文献类型:
--
作者:
Marruedo Arricibita A
Thermal infrared (TIR) imaging has been previously applied to survey relatively large thermal footprints in coastal zones, lakes, reservoirs and rivers. In freshwater systems, the buoyancy of relatively warm groundwater during the winter months allows for the surface identification of groundwater discharge or thermal pollution using TIR imaging. However, information regarding the performance of TIR for resolving this warm groundwater upwelling is limited, particularly at fine spatial scales and variable discharge rates. In order to evaluate the suitability of TIR to trace warm groundwater upwelling at the water surface of lakes, ponds and reservoirs (e.g. lacustrine groundwater discharge (LGD) in shallow near-shore zones) we conducted a mesocosm experiment with a TIR camera situated 4 m above the water surface to capture thermal patterns in response to different groundwater discharge rates, weather conditions and the diurnal cycle. A fiber optic distributed temperature sensing system (FO-DTS) installed at 2 cm below the water surface was used to ground-truth spatial patterns observed in TIR images. Results show the impacts of both the diurnal cycle of net radiation and prevailing weather conditions on the accuracy of TIR imaging for resolving warm groundwater discharge. Most reliable results were obtained under overcast weather conditions and during the night. The results of our study provide guidance for those looking to use TIR for conducting thermal tracing of LGD at the surface of freshwater bodies during winter.
登录
查看更多内容
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
Karin Meinikmann;J. Lewandowski;G. Nützmann
通讯作者:
G. Nützmann
DOI:
--
发表时间:
1994
期刊:
IEEE International Geoscience and Remote Sensing Symposium
影响因子:
--
作者:
J. Schott
通讯作者:
J. Schott
影响因子:
1
作者:
Tempelhahn, A.;Budzier, H.;Gerlach, G.
通讯作者:
Gerlach, G.
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
D. Rosenberry;M. Briggs;Emily B. Voytek;J. Lane
通讯作者:
J. Lane
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Eunhee Lee;K. Kang;S. Hyun;K. Lee;Heesung Yoon;Seung;Yongcheol Kim;Zhen Xu;Duk‐jin Kim;D. Koh;Kyoochul Ha
通讯作者:
Kyoochul Ha