Multi-frequency microwave response to periodic rougheness

dc.contributor.author	Kuria, David Ndegwa
dc.contributor.author	Lu, Hui
dc.contributor.author	Koike, Toshio
dc.contributor.author	Tsutsui, Hiroyuki
dc.contributor.author	Graf, Tobias
dc.date.accessioned	2022-11-14T12:54:22Z
dc.date.available	2022-11-14T12:54:22Z
dc.date.issued	2006-07-07
dc.identifier.uri	http://repository.dkut.ac.ke:8080/xmlui/handle/123456789/7649
dc.description.abstract	A series of field experiments were conducted to verify the effects of roughness on passive microwave emission. From these field experiments, it was observed that surface roughness increases observed brightness temperatures (higher emissivity) at horizontal polarization while diminishing the vertically polarized brightness temperatures marginally. The advanced integral equation method (AIEM) and QP models were found to model the effects of surface roughness fairly reasonably. The QP model which is a parameterized version of the AIEM was found to show correspondence with the AIEM simulations and is therefore recommended for application in AMSR based data assimilation schemes.	en_US
dc.language.iso	en	en_US
dc.publisher	IEEE	en_US
dc.subject	surface scattering; surface roughness; emission model; soil moisture	en_US
dc.title	Multi-frequency microwave response to periodic rougheness	en_US
dc.type	Article	en_US