Results 201 to 210 of about 35,504 (247)

Passive Microwave Remote Sensing Contribution to Hydrological Variables

Surveys in Geophysics, 1991
Physical principles governing passive microwave remote sensing of hydrological variables are outlined and illustrated by actual observations by ground-based, air-borne and space-borne microwave radiometers operating at different frequencies. Specific hydrological variables addressed in this paper are soil moisture, seasonal inundation of rivers and ...
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Passive microwave remote sensing for security applications

2007 European Radar Conference, 2007
The security of persons or sensitive infrastructures is of increasing importance. Passive microwave remote sensing allows a daytime-independent non-destructive observation and examination of the objects of interest without artificial exposure under nearly all weather conditions.
Peichl, Markus, Dill, Stephan, Jirousek, Matthias, Süß, Helmut   +3 more
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Role of Passive Microwave Remote Sensing in Improving Flood Forecasts

IEEE Geoscience and Remote Sensing Letters, 2009
Accurate information concerning antecedent soil moisture conditions is a key source of hydrologic forecasting skill for regional-scale flooding events occurring over time scales of days to weeks. Remotely sensed surface soil moisture observations are a viable source of such information and can potentially improve flood peak timing and magnitude ...
Rajat Bindlish, Wade T. Crow, Thomas J. Jackson   +2 more
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Passive microwave remote sensing of snow constrained by hydrological simulations

IEEE Transactions on Geoscience and Remote Sensing, 2001
This paper describes a snow parameter retrieval algorithm from passive microwave remote sensing measurements. The three components of the retrieval algorithm include a dense media radiative transfer (DMRT) model, which is based on the quasicrystalline approximation (QCA) with the sticky particle assumption, a physically-based snow hydrology model (SHM)
Chi-Te Chen, Bart Nijssen, Jianjun Guo, Leung Tsang, Andrew W. Wood, Jenq-Neng Hwang, Dennis P. Lettenmaier   +6 more
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Combined active and passive microwave remote sensing of snow in Finland

IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477), 2004
We examined the use of data from active (QuikScat on SeaWinds) and passive (SSM/I on DMSP) space-borne microwave sensors for monitoring key snow parameters in Finland. The feasibility of these data for the task was determined both separately and using a combined data set.
Martti T. Hallikainen, Pekka Halme, Matias Takala, Jouni Pulliainen   +3 more
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Intercomparison of Electromagnetic Models for Passive Microwave Remote Sensing of Snow

IEEE Transactions on Geoscience and Remote Sensing, 2006
Electromagnetic models can be used for understanding the interaction between electromagnetic waves and matter, interpreting experimental data, and retrieving geophysical parameters. Comparing the results of different snow models, when driven with the same set of input parameters, can benefit remote sensing of snow.
Marco Tedesco, Edward J. Kim 0001
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Passive microwave remote sensing of atmospheric parameters

1995 International Geoscience and Remote Sensing Symposium, IGARSS '95. Quantitative Remote Sensing for Science and Applications, 2002
Passive microwave sensors are available from operational polar orbiting platforms such as the Special Sensor Microwave/Imager (SSM/I) and the Special Sensor Water Vapor Sounder (SSM/T2) onboard the polar orbiting Defense Meteorological Satellite Program (DMSP).
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Passive Microwave Remote Sensing of the Ocean: An Overview

2010
Passive microwave observations from satellites provide measurements of sea surface temperature (SST), wind speed, water vapor, cloud liquid water, rain rate, and sea ice that have lead to significant advances in meteorological and oceanographic research as well as improvements in monitoring and forecasting both weather and climate.
Chelle L. Gentemann, Frank J. Wentz, Marty Brewer, Kyle Hilburn, Deborah Smith   +4 more
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Active and passive microwave remote sensing of boreal forests

Acta Astronautica, 2002
Abstract Novel inversion methods are presented for active and passive satelliteborne microwave remote sensing. The objectives are biomass estimation, forest and land-cover-type recognition in boreal forests. A new adaptive inversion method for active sensors was developed for the forest block-wise stem volume estimation from satelliteborne radar ...
Lauri Kurvonen, Jouni Pulliainen, Martti Hallikainen   +2 more
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Theory and experiment for passive microwave remote sensing of snowpacks

Journal of Geophysical Research: Solid Earth, 1979
Both the theory and experiment for the passive remote sensing of snow with microwave radiometers have been studied. We account for volume scattering effects of snow by incorporating Mie scattering theory into a radiative transfer model. The theory is applied to the interpretation of experimental data obtained from various snow measurements.
J. A. Kong, R. Shin, J. C. Shiue, L. Tsang   +3 more
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