Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Ian O'Dwyer"'
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 54:1323-1335
Radio-frequency interference (RFI) observations for L-band microwave radiometry during the SMAP Validation Experiment 2012 (SMAPVEX12) airborne campaign are reported in this paper. The soil moisture measurement campaign was conducted in summer 2012 n
Autor:
Thomas J. Jackson, Barron Latham, Ian O'Dwyer, Andreas Colliander, Steve Dinardo, Seth Chazanoff, Eni G. Njoku, Simon Yueh, William Chun, Heather McNairn
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 12:801-805
In this letter, it is shown that spaceborne observations made by the European Space Agency's Soil Moisture and Ocean Salinity (SMOS) satellite agreed closely with the Passive Active L-band System (PALS) brightness temperature acquisitions during the
Autor:
Mustafa Aksoy, Jeffrey R. Piepmeier, Ian O'Dwyer, Sidharth Misra, Hsin Li, Damon Bradley, Joel T. Johnson, J. Mederios
Publikováno v:
2013 US National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM).
In recent years passive microwave measurements made by space-borne and air-borne missions have been corrupted by man-made Radio Frequency Interference (RFI) sources. Measurements from satellite missions such as SMOS and Aquarius show that even the pr
Autor:
Simon Yueh, Eni G. Njoku, Grant Wiseman, Ian O'Dwyer, Thomas J. Jackson, Aaron A. Berg, Steven J. Dinardo, Seth Chazanoff, Paul R. Bullock, Andreas Colliander, Ramata Magagi, Heather McNairn
Publikováno v:
SPIE Proceedings.
NASA’s (National Aeronautics and Space Administration) Soil Moisture Active Passive (SMAP) Mission is scheduled for launch in late 2014. The objective of the mission is global mapping of soil moisture and freeze/thaw state. Merging of active and pa
Autor:
Sterling Whitaker, Bjorn Lambrigtsen, Christopher S. Ruf, Bruce P. Block, Michael P. Flynn, Todd Gaier, Boon Lim, Dennis Harding, Alan Tanner, Pekka Kangaslahti, Mary Soria, Heather R. Owen, Ian O'Dwyer, Ryan M. Miller
Publikováno v:
IGARSS
We describe the development and progress of the GeoSTAR-II risk reduction activity for the NASA Earth Science Decadal Survey PATH Mission. The activity directly addresses areas of technical risk including the system design, low noise receiver product
Autor:
T. C. Gaier, Ian O'Dwyer, X.B. Mei, Bjorn Lambrigtsen, D. Pukala, Richard Lai, Alan Tanner, Pekka Kangaslahti
Publikováno v:
2010 IEEE MTT-S International Microwave Symposium.
Weather forecasting, hurricane tracking and atmospheric science applications depend on humidity sounding of atmosphere. Current instruments provide these measurements from ground based, airborne and LEO satellites by measuring radiometric temperature
Publikováno v:
2008 33rd International Conference on Infrared, Millimeter and Terahertz Waves.
Imaging of temperature and humidity profiles of the atmosphere on a global scale with high temporal and spatial resolution requires a large aperture millimeter wave radiometer on geostationary orbit. We developed a prototype 50 GHz millimeter wave sy