Sentences with phrase «satellite microwave sounding units»

The most reliable sets of global temperature data we have, using satellite microwave sounding units, show no appreciable temperature increases during the critical period 1978 - 1997, just when the surface station data show a pronounced rise.

The satellite microwave sounding units (MSU) receive radiation coming from throughout the troposphere.

While there remain disparities among different tropospheric temperature trends estimated from satellite Microwave Sounding Unit (MSU and advanced MSU) measurements since 1979, and all likely still contain residual errors, estimates have been substantially improved (and data set differences reduced) through adjustments for issues of changing satellites, orbit decay and drift in local crossing time (i.e., diurnal cycle effects).

The research reported here was done using an earlier version of the satellite microwave sounding unit dataset.

While there remain disparities among different tropospheric temperature trends estimated from satellite Microwave Sounding Unit (MSU and advanced MSU) measurements since 1979, and all likely still contain residual errors, estimates have been substantially improved (and data set differences reduced) through adjustments for issues of changing satellites, orbit decay and drift in local crossing time (i.e., diurnal cycle effects).

Not exact matches

As part of an ongoing joint project between UAH, NOAA and NASA, Christy and Dr. Roy Spencer, an ESSC principal scientist, use data gathered by advanced microwave sounding units on NOAA and NASA satellites to get accurate temperature readings for almost all regions of the Earth.

Since the first microwave sounding unit was launched into orbit in November 1978, satellite - based instruments have measured the temperature of the atmosphere from the surface up to an altitude of about eight kilometers above sea level.

The data presented in this case included both surface analyses (GISTEMP, NCDC, and HadCRUT3) in addition to satellite products for the lower troposphere (Microwave Sounding Unit — MSU).

In regards to Michael Jankowski's comment (# 11), the Fu et al. (2004, Nature) article showed that the satellite record of tropospheric temperature trends, based on the Microwave Sounding Unit channel 2, is contaminated by stratospheric cooling on the order of -0.08 K / decade.

There has been a debate on the trend estimates from a number of different studies based on the Microwave Sounding Unit (MSU) instrument carried by a number of satellites, and different researchers have come up with different trend estimates depending on how they have carried out the analysis.

Both the Microwave Sounding Unit (MSU) satellite (analyzed by the University of Alabama in Huntsville by John Christy and Roy Spencer) and weather balloon data (trends reported by a number of researchers, notably Jim Angell at NOAA) have failed to show significant warming since the satellite record began in late 1978, even though the surface record has been rising at its fastest pace (~ 0.15 C / decade) since instrumental records began.

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.

Linear additivity was found to hold in the PCM model for changes in tropopause height and synthetic satellite - borne Microwave Sounding Unit (MSU) temperatures (Christy et al., 2000; Mears et al., 2003; Santer et al., 2003b).

As part of an ongoing joint project between UAHuntsville, NOAA and NASA, Christy and Dr. Roy Spencer, an ESSC principal scientist, use data gathered by advanced microwave sounding units on NOAA and NASA satellites to get accurate temperature readings for almost all regions on the Earth.

In March 1990, NASA's Roy Spencer and University of Alabama - Huntsville's (UAH) John Christy dropped quite a bomb when they published the first record of lower atmospheric temperatures sensed by satellites» microwave sounding units (MSUs).

As a further indication, satellite - mounted Microwave Sounding Unit (MSU) data13 matches lower - bound trends moderately well over the period of overlapping data, leaving the GISTEMP6 estimate looking anomalously high.

With John Christy he presents the monthly real - world data from the microwave sounding unit satellites that provide the least inaccurate global temperature record we have.

• the factors that contribute to uncertainties in the trends inferred from three categories of instrumental measurements — Microwave Sounding Units (MSU) carried aboard National Oceanic and Atmospheric Administration (NOAA) satellites, radiosondes, and surface observations;

We examine four satellite datasets producing bulk tropospheric temperatures, based on microwave sounding units (MSUs), all updated since IPCC AR5.

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.

The two satellite data sets, RSS and UAH, use the Microwave Sounding Units (MSU) of orbiting satellites to estimate lower tropospheric temperature.

The microwave sounding units (MSU) aboard the satellites don't actually measure air temperature, but rather the intensity of microwave radiation given off by oxygen molecules in the atmosphere, and the intensity of this radiation is a proxy for air temperature.

The satellite - based microwave sounding unit (MSU) temperature record provides recent estimates of temperatures over Australia, with records starting in the late - 1970s.

While the satellite dataset has its strengths, unlike thermometers and temperature probes used on weather balloons the Microwave Sounding Units were new, largely untested tools when they were put into space.

2013 was not the warmest year in some satellite records of the temperature of the lower troposphere (also known as MSU - lt; microwave sounding unit - lower troposphere).

The spatial distribution of tropospheric and stratospheric temperature trends for 1979 to 2005 was examined, based on radiances from satellite - borne microwave sounding units that were processed with state - of - the - art retrieval algorithms.

Since December 1978, microwave sounding units on satellites have produced data which can be used to infer temperatures in the troposphere.

Since 1978 microwave sounding units (MSUs) on National Oceanic and Atmospheric Administration polar orbiting satellites have measured the intensity of upwelling microwave radiation from atmospheric oxygen, which is related to the temperature of broad vertical layers of the atmosphere.

The past experience of the climate research community with the Microwave Sounding Unit (MSU) and Advanced Microwave Sounding Unit (AMSU) provides a constructive case study in the challenges associated with constructing CDRs with satellite data.

Although last month was «the fifth warmest September in the satellite record» due to the effects of a «monster El Nino», «the global climate trend since Nov. 16, 1978: +0.11 C per decade,» according to the latest report from the University of Alabama / Huntsville's Earth System Science Center, which monitors advanced microwave sounding units installed on NOAA and NASA satellites.

From 1979 to 2005 the microwave sounding units (MSUs) and since 1998 the Advanced Microwave Sounding Units on NOAA polar orbiting satellites have measured the intensity of upwelling microwave radiation from atmospherimicrowave sounding units (MSUs) and since 1998 the Advanced Microwave Sounding Units on NOAA polar orbiting satellites have measured the intensity of upwelling microwave radiation from atmosphericsounding units (MSUs) and since 1998 the Advanced Microwave Sounding Units on NOAA polar orbiting satellites have measured the intensity of upwelling microwave radiation from atmospheric oxunits (MSUs) and since 1998 the Advanced Microwave Sounding Units on NOAA polar orbiting satellites have measured the intensity of upwelling microwave radiation from atmospheriMicrowave Sounding Units on NOAA polar orbiting satellites have measured the intensity of upwelling microwave radiation from atmosphericSounding Units on NOAA polar orbiting satellites have measured the intensity of upwelling microwave radiation from atmospheric oxUnits on NOAA polar orbiting satellites have measured the intensity of upwelling microwave radiation from atmospherimicrowave radiation from atmospheric oxygen.

The microwave sounding units (MSU) aboard the satellites don't actually measure air temperature, but rather the intensity of microwave radiation given off by oxygen molecules in the atmosphere, from which the scientists estimate the temperature.

As part of an ongoing joint project between UAHuntsville, NOAA and NASA, John Christy, a professor of atmospheric science and director of the Earth System Science Center (ESSC) at The University of Alabama in Huntsville, and Dr. Roy Spencer, an ESSC principal scientist, use data gathered by advanced microwave sounding units on NOAA and NASA satellites to get accurate temperature readings for almost all regions of the Earth.