Results 81 to 90 of about 24,045 (203)
Aerothermodynamic radiation studies [PDF]
We have built and made operational a 6 in. electric arc driven shock tube which alloys us to study the non-equilibrium radiation and kinetics of low pressure (0.1 to 1 torr) gases processed by 6 to 12 km/s shock waves.
Caledonia, G. E. +5 more
core +1 more source
Attitude-referenced radiometer study. Part 2: Primary calibration system [PDF]
A primary calibration system, PCS, for infrared radiometers has been developed, built, and tested. The system allows radiometers to be calibrated with less than 1 percent error for use in earth coverage horizon measurements, earth resources surveys, and ...
Otte, A. A., Williamson, W. R.
core +1 more source
MST radar networks and campaigns session summary and recommendations [PDF]
, 1986 Topics addressed included: determination of sources of propagation and dissipation of atmospheric disturbances and waves; measurement parameters; comparison of different method and instruments; suitable combinations of instruments; information exchange ...
Rottger, J.
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Noise Mitigation of the SMOS L1C Multi-Angle Brightness Temperature Based on the Lookup Table
Remote SensingOwing to the inherently lower sensitivity of microwave aperture synthesis radiometers (ASRs), Soil Moisture and Ocean Salinity (SMOS) satellite brightness temperature (TB) measurements exhibit significantly greater system noise than real-aperture ...
Ke Chen +4 more
doaj +1 more source
Effect of nonideal square-law detection on static calibration in noise-injection radiometers [PDF]
The effect of nonideal square-law detection on the static calibration for a class of Dicke radiometers is examined. It is shown that fourth-order curvature in the detection characteristic adds a nonlinear term to the linear calibration relationship ...
Hearn, C. P.
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应用气象学报Utilizing the microwave radiometer data and hourly rainfall data in Jilin Cloud Physics Field Scientific Test Base, CMA, the precipitation cloud system in Northeast China cold vortex at the Changbai Mountain foothills is analyzed.
Wang Xiujuan +4 more
doaj +1 more source
Remote SensingThe L band frequency shows high sensitivity to sea surface salinity. More stable brightness temperature (TB) measurements are required for L-band radiometers to reduce salinity retrieval errors than for high-frequency radiometers.
Jingjing Ren +4 more
doaj +1 more source
Test and evaluation of water vapor radiometers [PDF]
The accuracy of very long baseline interferometry in geodetic and astrometric applications is primarily limited by the propagation delays through the troposphere.
Moran, J.
core +1 more source
The estimation of the propagation delay through the troposphere from microwave radiometer data [PDF]
The uncertainity in propagation delay estimates is due primarily to tropospheric water, the total amount and vertical distribution of which is variable. Because water vapor both delays and attenuates microwave signals, the propagation delay, or wet path ...
Moran, J. M., Rosen, B. R.
core +1 more source
Broadband radiometric measurements from GPS satellites reveal summertime Arctic Ocean Albedo decreases more rapidly than sea ice recedes. [PDF]
Sci Rep, 2023 Dreike PL +5 more
europepmc +1 more source