Magnitude and spatio-temporal variability of methane emissions from a eutrophic freshwater lake

[摘要] (cont.) The results from this research indicate that freshwater lakes should be considered as important natural sources in the global methane budget. Other contributions include the development a low-cost, low-power bubble trap for automated measurement of ebullition. The electronics in this device can also be used to measure other phenomena where a pressure differential is of interest, such as lake water level. To our knowledge, there has been no previous study that has measured bubbling fluxes over a comparable period of time with such high temporal resolution. Finally, the wavelet transform is presented as a new tool for identification of bubbling events from sensor data at multiple time scales.

[发布机构] Massachusetts Institute of Technology