Title :
High-sensitivity radiometry of air-water interface fast temperature and heat flux variances
Author :
Gaikovich, Konstantin P.
Author_Institution :
Dept. of Semicond. Phys., Inst. for Phys. of Microstructures RAS, Nizhny Novgorod, Russia
Abstract :
Fast variances of temperature profile and heat flux through the water-air interface caused by atmospheric turbulence in weak wind conditions have been determined on the basis of measurements of radio brightness evolution of water at the frequencies of 60 and 131 GHz. Two components of the heat flux related to evaporation and to thermal conductivity have been obtained, which enabled us to determine evaporation rate and viscous sublayer depth variances. Statistical parameters of water surface temperature variations have been calculated.
Keywords :
atmospheric boundary layer; atmospheric temperature; atmospheric turbulence; oceanography; radiometry; remote sensing; 131 GHz; 60 GHz; air-water interface; atmospheric turbulence; evaporation; evaporation rate; heat flux; high-sensitivity radiometry; radio brightness evolution; temperature flux; temperature profile; thermal conductivity; viscous sublayer depth variances; water surface temperature variations; weak wind conditions; Atmospheric measurements; Brightness; Frequency measurement; Integral equations; Ocean temperature; Radiometry; Temperature measurement; Temperature sensors; Thermal conductivity; Water heating;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.2003.815668
