The East Siberian Arctic Shelf (ESAS) is a key area of CH4 venting in the Ocean. ESAS region stores more than 80% world’s predicted subsea permafrost and associated permafrost-related gas hydrates. Gas emissions from are controlled by its current thermal state, which, turn, depends on environmental factors. aim manuscript to show that state phase transitions pore moisture can be estimated remot...

Thermal convection in the Antarctic and Greenland ice sheets has been dismissed on the grounds that radio-echo stratigraphy is undisturbed for long distances. However, the undisturbed stratigraphy lies, for the most part, above the density inversion in polar ice sheets and therefore does not disprove convection. An echo-free zone is widespread below the density inversion, yet nobody has cited t...

In many radar scenarios, the radar target or the medium is assumed to possess randomly varying parts. The properties of a target are described by a random process known as the spreading function. Its second order statistics under the WSSUS assumption are given by the scattering function. Recent developments in the operator identification theory suggest a channel sounding procedure that allows t...