Sentences with phrase «with microwave measurements»

Not exact matches

During three flybys of Enceladus, between April 2010 and May 2012, the scientists collected extremely precise measurements of Cassini's trajectory by tracking the spacecraft's microwave carrier signal with NASA's Deep Space Network.

In contrast, the Scripps team opted to directly correlate albedo measurements made by NASA's CERES instrument data with observations of sea ice extent made by the Special Sensor Microwave Imager (SSM / I) radiometers aboard Defense Meteorological Satellite Program satellites.

From the exact measurement of the cosmic microwave background (CMB) with the Planck space observatory and many other measurements for example with the Hubble space telescope, the scientists were able to develop a precise model of our Universe.

An arbitrary evolution of its quantum state can be programmed with a series of microwave pulses, and a projective measurement of the state can be performed by a pulsed readout subcircuit.

Such a comb can form a bridge spanning the huge frequency gap from microwaves to visible light: very precise microwave measurements can, with an optical comb, produce equally exact data about light.

With the help of EDMR, electrically detected magnetic resonance, an ultrasensitive method of measurement, they were able to determine the local defects» structure by detecting their magnetic fingerprint in the photo current of the solar cell under a magnetic field and microwave radiation.

All of these measurements were conducted with spectrometers built exclusively in the Ziurys group, which includes three mm / sub - mm / THz direct absorption spectrometers and one Fourier transform microwave / mm instrument.

Previously, the most precise test of cosmological models came from measurements with the European Space Agency's Planck satellite of what is known as the cosmic microwave background (CMB)-- a faint glow in the sky emitted 380,000 years after the Big Bang.

«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.

«If you really believe our number — and we have shed blood, sweat and tears to get our measurement right and to accurately understand the uncertainties — then it leads to the conclusion that there is a problem with predictions based on measurements of the cosmic microwave background radiation, the leftover glow from the Big Bang,» said Alex Filippenko, a UC Berkeley professor of astronomy and co-author of a paper announcing the discovery.

The SPT is designed to conduct low - noise, high - resolution surveys of the sky at millimeter (mm) and submillimeter (submm) wavelengths, with the particular design goal of making ultra-sensitive measurements of the cosmic microwave background (CMB).

In this lecture, George Efstathiou will describe how recent measurements of the cosmic microwave background radiation made with the Planck Satellite can be used to answer these questions and to elucidate what happened within 10 - 35 seconds of the creation of our Universe.

``... The MSUs are cross-track scanners with measurements of microwave radiance in four channels ranging from 50.3 to 57.95 GHz on the lower shoulder of the Oxygen absorption band.

It is demonstrated that even with historical SSTs as a boundary condition, most atmospheric models exhibit excessive tropical upper tropospheric warming relative to the lower - middle troposphere as compared with satellite - borne microwave sounding unit measurements.

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.

Microwave measurements penetrate thick convective storm clouds, observing wind and wave fields with good accuracy.

The researchers compared the GNSS - R satellite measurements with data from other sources, including tropical cyclone best track data from the National Oceanic and Atmospheric Administration's National Centers for Environmental Information; two climate reanalysis products; and a spaceborne scatterometer, a tool that uses microwave radar to measure winds near the surface of the ocean.

Temperatures aloft can be measured in a number of ways, two of which are useful for climate monitoring: by radiosondes (balloon - borne instrument packages, including thermometers, released daily or twice daily at a network of observing stations throughout the world), and by satellite measurements of microwave radiation emitted by oxygen gas in the lower to mid-troposphere, taken with an instrument known as the Microwave Sounding Unit (MSU).5 The balloon measurements are taken at the same Greenwich mean times each day, whereas the times of day of the satellite measurements for a given location drift slowly with changes in the satellitmicrowave radiation emitted by oxygen gas in the lower to mid-troposphere, taken with an instrument known as the Microwave Sounding Unit (MSU).5 The balloon measurements are taken at the same Greenwich mean times each day, whereas the times of day of the satellite measurements for a given location drift slowly with changes in the satellitMicrowave Sounding Unit (MSU).5 The balloon measurements are taken at the same Greenwich mean times each day, whereas the times of day of the satellite measurements for a given location drift slowly with changes in the satellite orbits.

Except when satellites are inferring temperature from microwave sounding units, in which case the fixed locations on the surface taking direct measurements with thermometers have had their real data manipulated to achieve a desired result.

Ridal, M., D.P. Murtagh, F. Merino, J.R. Pardo, and L. Pagani, 2002: Microwave temperature and pressure measurements with the Odin satellite: II.

The animation was made with measurements taken by the Advanced Microwave Scanning Radiometer — EOS (AMSR - E) on NASA's Aqua satellite between March 7 and September 9.

With all respect to Mears and his colleagues, the continuously shifting nature of the baseline corrections still doesn't suggest that the microwave - derived atmospheric temperature measurements (or calculations) constitute a stable enough data set to reliably or accurately interpret long - term trends on the magnitude of ~ 0.1 K / decade.

«The IPCC claims that data collected by satellitemounted microwave sounding units (MSU) and advanced MSU measurements since 1979 reveal a warming trend of 0.12 º C to 0.19 º C per decade, which it says «is broadly consistent with surface temperature trends» (IPCC, 2007 - I, p. 237).

With MIS delayed until NPOESS C2, there is a need to continue the long (28 - year) climate data record of sea ice extent and concentration collected by passive microwave radiometers; continued scatterometer and altimeter measurements are also required.

This study uses satellite radiation budget measurements along with satellite microwave sea ice data to document the Arctic - wide decrease in planetary albedo and its amplifying effect on the warming.

With respect to ongoing research, I wonder if a series of high - resolution measurements in the 53 - 57 GHz band from an airborne microwave spectrometer (vertical looking up, vertical looking down and horizontal) under measured conditions of temperature, pressure and humidity might allow improved deconvolution of the satellite data.