Title :
Modeling of sea-roughness radiometric effects for the retrieval of surface salinity at 14.3 GHz
Author :
Raizer, Victor Y.
Author_Institution :
NOAA Environ. Technol. Lab., Sci. & Technol. Corp., Fairfax, VA, USA
Abstract :
We consider an advanced variant of an electromagnetic model of a rough surface with the goal to provide numerical modeling of the salinity-temperature radiometric contrasts. These calculations are made especially at the wavelength of 21 cm (14.3 GHz) and the nadir incidence angle for low-wind (<7 m/s) and foam-free sea conditions. In these cases, passive microwave radiometric measurements perhaps are the best suited for the sea salinity mapping and the retrieval is quite accurate. Some numerical examples of salinity radiometric effects are presented
Keywords :
microwave measurement; ocean waves; oceanographic techniques; remote sensing; 14.3 GHz; EM model; foam-free sea conditions; low-wind sea conditions; nadir incidence angle; numerical modelling; passive microwave radiometric measurements; rough surface; salinity radiometric effects; salinity-temperature radiometric contrasts; sea salinity mapping; sea salinity retrieval; sea-roughness radiometric effects modelling; surface salinity retrieval; Brightness temperature; Electromagnetic modeling; Microwave radiometry; Ocean temperature; Resonance; Rough surfaces; Sea measurements; Sea surface; Surface roughness; Surface waves;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.977063
