Sentences with phrase «microwave radiometer»

A new method was developed that combine C and X-band brightness temperature measurements over the ocean to retrieve for the first time salinity is from satellite microwave radiometer measurement...

Since 1979, scientists have relied on a variety of satellite sensors, including the Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave / Imager (SSM / I), the Advanced Microwave Scanning Radiometer — Earth Observing System (AMSR - E), and (most recently) the Special Sensor Microwave Imager / Sounder (SSMIS).

MacFarlane, S.F., K.F. Evans, and A.S. Ackerman, 2002: A Bayesian algorithm for the retrieval of liquid water cloud properties from microwave radiometer and millimeter radar data.

This hindcast uses two time - varying inputs: 10 - meter wind vectors from the atmospheric model NAVGEM (Navy Global Environmental Model, Hogan et al. 2014) run at the Fleet Numerical Meteorology and Oceanography Center (FNMOC), and analyses of ice concentrations (also produced at FNMOC) from passive microwave radiometer data (SSM / I).

Motivated primarily by Mitchum's conclusion, Keihm et al., 2000 (Abstract; Google Scholar access) actively tried to come up with something that could cause a «drift» in the satellites, and eventually decided that a temporary problem in the «TOPEX Microwave Radiometer path delay measurements», which stopped in December 1996 could do that.

Bianco L., K. Friedrich, J. M. Wilczak, D. Hazen, D. E. Wolfe, R. Delgado, S. P. Oncley and J. K. Lundquist (May 2017): Assessing the accuracy of microwave radiometers and radio acoustic sounding systems for wind energy applications.

They had analysed the first year's data from the differential microwave radiometer (DMR), one of three experiments on board COBE.

Mathematical relationships between lightning incidence and microwave - derived brightness temperatures can be used to reconstruct microwave radiometer data where these data are not available.

«Retrieving mean temperature of atmospheric liquid water layers using microwave radiometer measurements.»

Temperature sounding microwave radiometers flown on polar - orbiting weather satellites provide a long - term, global - scale record of upper - atmosphere temperatures, beginning in late 1978 and continuing to the present.

As the spacecraft swooped 9,000 kilometers above the giant storm, Juno's microwave radiometer peered through the deep layers of cloud, measuring the atmosphere's temperature down hundreds of kilometers.

If Juno's microwave radiometer finds high levels of water vapor in Jupiter's atmosphere, that would suggest the planet formed farther out from the sun than its present location.

The first such map was created in 1992, based on data gathered by the Differential Microwave Radiometer (DMR), an instrument on the Cosmic Background Explorer (COBE) satellite, which NASA launched in 1989.

Not only home to the radar wind profiler, this platform also hosts a sunphotometer, surface meteorology instrumentation and microwave radiometer profiler.

Dual Microwave Radiometer Experiment Field Campaign Report.

Satellite microwave radiometers, however, are equipped with laboratory - calibrated platinum resistance thermometers, which have demonstrated stability to thousandths of a degree over many years, and which are used to continuously calibrate the satellite instruments once every 8 seconds.

The cancellation of CMIS leaves JAXA's AMSR - E and the U.S. Navy's WindSat as the only low - frequency, high - spatial - resolution microwave radiometers in space.

Matrosov S. Y. and D. D. Turner (March 2018): Retrieving mean temperature of atmospheric liquid water layers using microwave radiometer measurements.

The Stepped Frequency Microwave Radiometer (SMRF) is a promising tool for direct measurement of surface winds.

Pettersen took advantage of a wealth of data from an instrument typically used to measure characteristics like temperature and humidity, called a microwave radiometer, and from it gathered information about cloud liquid water and ice within clouds above Greenland.

PASADENA, Calif. — When ground controllers begin powering up the Juno spacecraft's science instruments on July 6, one of their most important goals will be to get the microwave radiometer up and running.

«This is a totally new concept specifically designed for Jupiter,» says Michael Janssen of the Jet Propulsion Laboratory, the leader of the Microwave Radiometer Team.

A microwave radiometer onboard the Juno spacecraft orbiting Jupiter could soon reveal where and how the giant planet formed

Critically, Juno's microwave radiometer will not simply survey Jupiter's cloud tops — instead, it will peer below the ammonia clouds that shroud most of the planet, which are largely transparent to microwaves.

The craft's microwave radiometer will also «see» about 550 kilometers below the clouds covering Jupiter's surface.

The microwave radiometer will measure heat radiation coming from the Moon.

Up close, Juno's microwave radiometer will probe the water concentrations to a depth of about 500 kilometers, well under the clouds.

«Along with the microwave radiometer measurements, which have also shown surprises in the deep atmosphere, these results demonstrate that if we want to understand giant planets, we will need to study all of Jupiter,» Levin says.

Finnish Meteorological Institute has been doing estimates of two essential sea ice parameters — namely, sea ice concentration (SIC) and sea ice thickness (SIT)-- for the Bohai Sea using a combination of a thermodynamic sea ice model and Earth observation (EO) data from synthetic aperture radar (SAR) and microwave radiometer.

Moreover, microwave radiometer measurements of wet tropospheric delay can not be used since those measurements are also affected by sea ice.

If liquid water path is available from the microwave radiometer (MWR), then effective radius is also derived; otherwise a default effective radius of 8.0 um is assumed.

To reduce the variability and bias introduced into the QME AERI / LBLRTM radiance residuals, the moisture profiles from each radiosonde are scaled such that its total precipitable water vapor matches that retrieved from the microwave radiometer (MWR), and these scaled profiles are used to drive the model.

Meng, H., et al. (2017), A 1DVAR - based snowfall rate retrieval algorithm for passive microwave radiometers, J. Geophys.

Two measures of ice cover are taken by a microwave radiometer on the Aqua satellite.

Microwave radiometers are very sensitive gauges of energy transmitted from the Earth which scientists can use to judge the amount of water, ice or water vapour underneath the spacecraft's flight path.

While the sea ice extent did not dip below the 2007 record, the sea ice area as measured by the microwave radiometer on NASA's Aqua satellite did drop slightly lower than 2007 levels for about 10 days in early September, explains Joey Comiso, of NASA's Goddard Institute for Space Studies [GISS - the institute with the best Earth temperature dataset].

The Microwave Radiometer - High Frequency (MWRHF) provides time - series measurements of brightness temperatures from two channels centered at 90 and 150 GHz.

Microwave radiometers are a passive measurement technique; that is, they monitor Earth's own heat energy emissions in the 1 - to 200 - gigahertz frequency range.

The microwave radiometers on the Nimbus - 7 satellite pick up these differences.

The 1984 image was made from observations by the Scanning Multichannel Microwave Radiometer (SMMR) on the Nimbus - 7 satellite.

Radiometers, including the atmospheric emitted radiance interferometer, microwave radiometer, 3 - channel microwave radiometer, multifilter rotating shadowband radiometer, pyranometer, pyroheliometer, pyrgeometer, and blackbody calibration system.

Useful satellite data concerning sea ice began in late 1978 with the launch of NASA's Scanning Multichannel Microwave Radiometer (SMMR) satellite.