Sentences with phrase «microwave data since»

Passive microwave data since 1973 have shown considerable interannual variability.

Satellite passive microwave data since the 1970s indicate a 3 % decrease per decade in arctic sea ice extent.

Not exact matches

The data come from two different microwave sensors, the first aboard the Nimbus 7 satellite, which flew from 1978 to 1987, and the second from the Defense Meteorological Satellite Programme, which has flown since 1987.

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).

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.

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 Special Sensor Microwave Imager and Sounder (SSMIS) on the Defense Meteorological Satellite Program (DMSP) F - 17 satellite that provides passive microwave brightness temperatures (and derived Arctic and Antarctic sea ice products) has been providing spurious data since beginning of AprMicrowave Imager and Sounder (SSMIS) on the Defense Meteorological Satellite Program (DMSP) F - 17 satellite that provides passive microwave brightness temperatures (and derived Arctic and Antarctic sea ice products) has been providing spurious data since beginning of Aprmicrowave brightness temperatures (and derived Arctic and Antarctic sea ice products) has been providing spurious data since beginning of April, 2016.

Michaels pointed to record Antarctic ice, which «is at its highest extent measured by the current microwave satellite sounding system» since 1978, according to data from the University of Illinois» Polar Ice Research Center.

Since December 1978, the National Oceanic and Atmospheric Administration's polar - orbiting satellites have measured upwelling microwave radiation from atmospheric oxygen, and Spencer and Christy use this data to calculate the temperature of broad volumes of the atmosphere.

«Based on a new analysis of passive microwave satellite data, we demonstrate that the annual mean extent of Antarctic sea ice has increased at a statistically significant rate of 0.97 % dec - 1 since the late 1970s.»

The Special Sensor Microwave Imager and Sounder (SSMIS) on the Defense Meteorological Satellite Program (DMSP) F - 17 satellite that provides passive microwave brightness temperatures (and derived Arctic and Antarctic sea ice products) has been providing spurious data since the beginning of AprMicrowave Imager and Sounder (SSMIS) on the Defense Meteorological Satellite Program (DMSP) F - 17 satellite that provides passive microwave brightness temperatures (and derived Arctic and Antarctic sea ice products) has been providing spurious data since the beginning of Aprmicrowave brightness temperatures (and derived Arctic and Antarctic sea ice products) has been providing spurious data since the beginning of April, 2016.

«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).

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