[1] A technique for the estimation of humidity in the lower troposphere using simultaneous dual‐wavelength radar observations is proposed and tested. The method compares the reflectivity from clouds and precipitation of a non‐attenuated wavelength (S‐band, 10 cm) and an attenuated wavelength (Ka‐band, 8 mm) to compute the clear‐air gaseous attenuation at the attenuated wavelength. These estimat...

Bubble-mediated transport is the predominant pathway of methane emissions from inland waters, which are a globally significant sources potent greenhouse gas to atmosphere. High uncertainties exist in emission estimates due high spatial and temporal variability. Acoustic methods have been applied for mapping ebullition rates by quantification rising bubbles water column. However, variability flu...