Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Roger De Roo"'
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 60:1-16
In this article, a unified framework of vegetation scattering using radiative transfer (RT) theory for passive and active remote sensing of vegetated land surfaces, especially those associated with moderate-to-large vegetation water contents (VWCs),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93814829727a890f0590766f02732498
https://doi.org/10.1109/tgrs.2021.3082137
https://doi.org/10.1109/tgrs.2021.3082137
Publikováno v:
International Journal of Digital Earth. 14:1337-1353
The ability to correct for the influence of forest cover is crucial for retrieval of surface geophysical parameters such as snow cover and soil properties from microwave remote sensing. Existing co...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af2f6720fe8bb2478d2916a36a518c92
https://doi.org/10.1080/17538947.2021.1950852
https://doi.org/10.1080/17538947.2021.1950852
Autor:
Tara Bongiovanni, Pang-Wei Liu, Karthik Nagarajan, Daniel Preston, Patrick Rush, Tim H.M. van Emmerik, Robert Terwilleger, Alejandro Monsivais-Huertero, Jasmeet Judge, Susan Steele-Dunne, Roger De Roo, Ruzbeh Akbar, Ella Baar, Max Wallace, Anthony England
Publikováno v:
EDIS, Vol 2015, Iss 6 (2015)
This new report from UF/IFAS researchers provides another set of observation data that can be used to develop better models for accurate prediction of weather and near-term climate. It describes the observations conducted during the MicroWEX-11, a se
Externí odkaz:
https://doaj.org/article/834b06744c734aeaaad1e1c06cb4e8fb
Publikováno v:
IEEE Microwave and Wireless Components Letters. 30:1133-1136
This letter presents a new filter to suppress radio frequency interference (RFI) in microwave remote sensing instruments, particularly a wideband autocorrelation radiometer (WiBAR). RFI increases the noise floor and results in a decreased signal-to-n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb52e949589cc8ff4ae01c2526bf1fcc
https://doi.org/10.1109/lmwc.2020.3031287
https://doi.org/10.1109/lmwc.2020.3031287
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 17:1218-1222
A new passive microwave remote sensing technique, wideband autocorrelation radiometry (WiBAR), directly measures the microwave propagation time difference of multipath microwave emission from low-loss layered surfaces such as a dry snowpack and a fre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3be305ccc5187d29672f16cb402bd098
https://doi.org/10.1109/lgrs.2019.2940584
https://doi.org/10.1109/lgrs.2019.2940584
Autor:
Tara Bongiovanni, Pang-Wei Liu, Karthik Nagarajan, Daniel Preston, Patrick Rush, Xueyang Duan, Guanbo Chen, Robert Terwilleger, Alejandro Monsivais-Huertero, Roger De Roo, Jasmeet Judge, Ruzbeh Akbar, Mary Morris, Olivia Williams, Lindsey Marks, Courtnay Cardozo, Mahta Moghaddam, Anthony England
Publikováno v:
EDIS, Vol 2015, Iss 4 (2015)
For accurate weather prediction, accurate modeling of surface hydrological processes is very important. Most current models capture the biophysics of moisture and energy transport and of crop growth and development pretty well. However, model estimat
Externí odkaz:
https://doaj.org/article/6fe2eca51d7f494fb2e700e418a8bb74
Autor:
Roger De Roo, Maryam Salim, Joel T. Johnson, Kamal Sarabandi, Mark Andrews, Alexandra Bringer
Publikováno v:
IGARSS
This paper presents a study of snowpack thermal emissions at long wavelengths and over a wide frequency band. Brightness temperature measurements of a snow layer are reported and used to estimate the travel time through the layer. The Ultra-Wideband
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f54b3526e77812d8dfc77c2ec3c602b0
https://doi.org/10.1109/igarss47720.2021.9553970
https://doi.org/10.1109/igarss47720.2021.9553970
Publikováno v:
IGARSS
This paper presents calibration procedure for time domain and frequency domain mode of wideband autocorrelation radiometry, (TD-WiBAR) and (FD-WiBAR), enhanced with a comb filter for RFI mitigation. WiBAR is a novel microwave method for measuring the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fdff23b1b6a530aea485551244cfa3a
https://doi.org/10.1109/igarss47720.2021.9554591
https://doi.org/10.1109/igarss47720.2021.9554591
Autor:
Tara Bongiovanni, Heather Enos, Alejandro Monsivais-Huertero, Blaire Colvin, Karthik Nagarajan, Jasmeet Judge, Pang-Wei Liu, Juan Fernandez-Diaz, Roger De Roo, Yuriy Goykhman, Xueyang Duan, Daniel Preston, Ramesh Shrestha, Clint Slatton, Mahta Moghaddam, Anthony England
Publikováno v:
EDIS, Vol 2011, Iss 8 (2011)
In order to really accurately predict weather and near-term climate, it is necessary to take into consideration soil moisture in the top meter of soil: it governs moisture and energy fluxes at the land-atmosphere interface, and it plays a significant
Externí odkaz:
https://doaj.org/article/a202a62296de433eb13af994dc75a512
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 16:1526-1530
Wideband autocorrelation radiometry (WiBAR) is a recently developed microwave radiometric technique to measure the lake icepack or snowpack thickness. This technique offers a direct method to remotely measure the microwave propagation time difference
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2534e96ec900b686c34b84bd1b504f50
https://doi.org/10.1109/lgrs.2019.2905840
https://doi.org/10.1109/lgrs.2019.2905840