Results 141 to 150 of about 2,229 (199)

Toward Field Deployment: Tackling the Energy Challenge in Environmental Sensors. [PDF]

open access: yesSensors (Basel)
Paccoia VD   +5 more
europepmc   +1 more source

Passive remote sensing at microwave wavelengths

Proceedings of the IEEE, 1969
Passive remote sensing at microwave frequencies has applications which range from meteorology to oceanography and geology. The meteorological applications are the most fully developed and include measurements of the temperature profile of the atmosphere and of the atmospheric distribution of H 2 O and O 3 .
D H Staelin
exaly   +2 more sources

Passive microwave remote sensing of the ocean?A review

Boundary-Layer Meteorology, 1980
This paper reviews the current status of passive microwave remote sensing of the ocean. The physics of emission and instrumentation are highlighted in order to establish a relationship between the thermal emission and retrieved geophysical parameters. A discussion then follows on measurements of temperature, salinity, windspeed, etc.
exaly   +2 more sources

Passive microwave remote sensing of the Earth's surface

IEEE Transactions on Antennas and Propagation, 1976
This is a brief review paper on microwave radiometry as a remote sensing tool in geoscientific investigations. Topics covered include basic radiometric principles, radiometer receivers, and applications. This paper is one in a series of mini-reviews sponsored by the Wave Propagation Standards Committee of IEEE and is intended primarily for those ...
exaly   +2 more sources

Atmospheric influences analysis in passive microwave remote sensing

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
Passive microwave remote sensing has all-weather work capabilities, but atmospheric media have different influences on satellite microwave brightness temperature under different atmospheric conditions and environments. In order to clarify atmospheric influences on Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E), atmospheric ...
Lijuan Shi   +3 more
openaire   +1 more source

Passive microwave remote sensing of forests: a model investigation

IEEE Transactions on Geoscience and Remote Sensing, 1996
A model, based on the radiative transfer theory and the matrix doubling algorithm, is described and used to compute the emissivity e of forests. According to model simulations, the L-band emissivity trend versus forest biomass is more gradual than that of the backscatter coefficient.
Paolo Ferrazzoli, Leila Guerriero
openaire   +1 more source

Combined receiver for active and passive microwave remote sensing

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
Existing spaceborne radiometer receivers, particularly below 40GHz, have typically utilized analog direct detection, but recently have been pushing toward heterodyne systems with digital signal processing to deal with the problem of radio frequency interference (RFI).
Chun-Sik Chae   +5 more
openaire   +1 more source

Passive microwave remote sensing of soil moisture

Journal of Hydrology, 1996
Microwave remote sensing provides a unique capability for direct observation of soil moisture. Remote measurements from space afford the possibility of obtaining frequent, global sampling of soil moisture over a large fraction of the Earth's land surface.
Eni G. Njoku, Dara Entekhabi
openaire   +1 more source

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