A Comparative Analysis of Radiosoundings and SAC-C Occultation Profiles in the Northern Australia

ALEJANDRO DE LA TORRE, TOSHITAKA TSUDA, GEORGE A. HAJJ

Tsukuba

Congreso; GPS Meteorology: Ground-Based and Space-Borne Applications; 2003

Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan

A subset of radiosoundings launched simultaneously from three stations at the NW of Australia are analysed and compared with two occultation profiles from SAC-C satellite. Critical and mixing levels are found near the tropopause, which seems to mainly interact with a large amplitude quasi-steady wave respect to the ground. This wave has an apparent wavelenght between 5 and 6 km and an intrinsic frequency probably high. The potential temperature calculated from occultation profiles does not reveal the presence of the mixing layer.