Zobrazeno 1 - 10
of 60
pro vyhledávání: '"J. Grandell"'
Autor:
J. Grandell, Sari Metsämäki, Jarkko Koskinen, Leena Matikainen, Sami Jänne, Martti Hallikainen
Publikováno v:
Remote Sensing of Environment. 69:16-29
In 1997 HUT, FEI, and FGI started a joint project that aims to develop an operational snow monitoring system in Finland. This project should apply both traditional methods (in situ measurements and hydrological models) and satellite-borne data (ERS-2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b9aa8355bd072e9f716954d54fb5217
https://doi.org/10.1016/s0034-4257(99)00010-3
https://doi.org/10.1016/s0034-4257(99)00010-3
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 37:1378-1390
The derivation, testing, and employment to parameter retrieval of the Helsinki University of Technology (HUT) snow microwave emission model is presented. The radiative transfer-based semi-empirical model describes the emission behavior of a homogeneo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2053caf2ff577e989f549080a0de36e
https://doi.org/10.1109/36.763302
https://doi.org/10.1109/36.763302
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 37:668-679
Sea ice retrievals from the standard passive microwave NASA team algorithm for the Special Sensor Microwave/Imager (SSM/I) are compared to retrievals from a new ERS-1 Active Microwave Instrument (AMI) wind scatterometer sea ice retrieval algorithm. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84628ed0433ba3d8aa681a6b3de72a89
https://doi.org/10.1109/36.752184
https://doi.org/10.1109/36.752184
Akademický článek
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Publikováno v:
Remote Sensing of Environment. 63:140-154
T he use of microwave radiometry for the retrieval of land use distribution (subpixel proportions) and forest stem volume for 25 km and 50 km pixels is investigated, with new algorithms introduced for the spaceborne multichannel SSM/I instrument. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66469df89a99ccb5c03ed4bffaaa262a
https://doi.org/10.1016/s0034-4257(97)00136-3
https://doi.org/10.1016/s0034-4257(97)00136-3
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 35:1188-1200
Novel inversion methods for the retrieval of surface temperature (air temperature at ground level) in forested areas using space-borne multi-channel microwave radiometer data are presented and analyzed. The first technique is an inversion method base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::590e24b12d9a2b2d3610f0f73cd564fd
https://doi.org/10.1109/36.628786
https://doi.org/10.1109/36.628786
Autor:
J. Grandell, R. Stuhlmann
Publikováno v:
IGARSS
Geostationary Infrared Sounding missions offer good temporal coverage, however due to the large distance to the observed Earth targets the effect of diffraction is increased compared to sounding from a low Earth orbit (LEO). Because of the wave-lengt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da0c7ad1e1b994bb11a1f4201775ab89
https://doi.org/10.1109/igarss.2007.4423686
https://doi.org/10.1109/igarss.2007.4423686
Publikováno v:
Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium.
The Arctic-91 expedition was a part of a project for calibration and validation of the ERS-1 Synthetic Aperture Radar, and for studying its feasibility for sea ice mapping. The authors MINISCAT scatterometer operating at the ERS-1 SAR center frequenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::618b4e2abac2cb682942c18bd560f3bf
https://doi.org/10.1109/igarss.1993.322204
https://doi.org/10.1109/igarss.1993.322204
Publikováno v:
IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium.
Novel inversion methods for the retrieval of surface temperature (air temperature at ground level) in forested areas using space-borne multi-channel microwave radiometer data are presented and analyzed. The first technique is an inversion method base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64f88d848460be6a036320bc960f5c17
https://doi.org/10.1109/igarss.1996.516904
https://doi.org/10.1109/igarss.1996.516904
Publikováno v:
Scopus-Elsevier
The feasibility of the ERS-1 Wind Scatterometer (WS) for land applications in the boreal forest zone was analyzed using data (1) from test areas located in Finland and (2) covering the European boreal forest zone. The results show that the ERS-1 Wind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1950f7d60fc0a295024164b97cc7f377
https://doi.org/10.1109/igarss.1996.516410
https://doi.org/10.1109/igarss.1996.516410