TY JOUR TI On some possibilities of multi-frequency remote sensing of the water surface KW Air/sea interactions KW Instruments and techniques KW Ocean observing systems KW Ocean remote sensing statistically rough wave KW scattering surface KW antenna radiation pattern KW Kirchhoff approximation KW quasi-specular scattering KW slope variance KW height variance KW significant wave height KW multifrequency remote sensing KW underwater acoustic wave gauge KW small-scale waves KW height spectrum KW slope spectrum KW swell JO Russian Journal of Earth Sciences AU Titchenko, Y.A. AU Karaev, V.Y. AU He, Y.. PY 2022 IS 22 PB Geophysical Center of the Russian Academy of Sciences