Sentences with word «radiosonde»

They note problems in radiosonde data, and also that statistical relationships observed from inter-annual variability may not be the same as those due to global warming from increased «greenhouse» gases.

Forest et al. (2002, 2006) and Lindzen and Giannitsis (2002) use free atmospheric temperature data from radiosondes in addition to surface air temperature.

Global, Hemispheric, and Zonal Temperature Deviations Derived From Radiosonde Records.

They obtained the coefficients for T2, T4 by equating the readings with radiosonde observations.

However, it is unlikely that the quality of satellite measurement is the entire reason for the difference for the simple reason that troposphere measurement by radiosonde weather balloons, a much older art, has reached very consistent findings (if anything, they show even less temperature increase since 1979).

Almost 50 years ago, the Quasi-Biennial Oscillation (QBO) of the winds in the equatorial stratosphere was detected due to the establishment of a global, regularly measuring radiosonde network (Graystone, 1959; Ebdon, 1960).

A recent study of water vapor trends above North America based on radiosonde measurements from 1973 to 1993 finds increases in precipitable water over all regions except northern and eastern Canada, where it fell slightly.

He has been working on the predictability studies using radiosonde observations and data assimilation technique.

Up until now, S&C were able to closely match radiosonde measurements.

Zhang, and J. Wang, 2005: A statistical model of cloud vertical structure based on reconciling cloud layer amounts inferred from satellites and radiosonde humidity profiles.

Millions of measurements taken by balloon - borne radiosondes do not show it.

In the upper - air field, this difference of approach has been very obvious, and great efforts have been expended to produce corrections to the older radiosonde data sets.

In analysing CAPE (see Box 3.5) from selected radiosonde stations throughout the tropics for the period 1958 to 1997, Gettelman et al. (2002) found mostly positive trends.

Christy claims the results he and Spencer have match radiosonde readings better (see his comments in the link of # 4 above).

In fact, most climate specialists now agree that actual observations from both weather satellites and balloon - borne radiosondes show no current warming whatsoever — in direct contradiction to computer model results.»

What happens to Douglass» figure if you incorporate the up - dated radiosonde estimates and a reasonable range of uncertainty for the models?

org «The sharp eyed among you will notice that the satellite estimates (even UAH)-- which are basically weighted means of the vertical temperature profiles — are also apparently inconsistent with the selected radiosonde estimates (you can't get a weighted mean trend larger than any of the individual level trends!).»

The satellite has the best coverage and suffers least from UHI and errors in TOB homogenisation, station drop outs etc, and is verified independently against radiosonde temperature measurements, but it is only of short duration.

It is of course possible that the observed humidity trends from the NCEP data are simply the result of problems with the instrumentation and operation of the global radiosonde network from which the data are derived.

Using NOAA radiosonde database that goes back to 1948 he studied the absorption of IR by the atmosphere over time.

Estimates from adjusted radiosondes, satellites (MSU channel 4) and reanalyses are in qualitative agreement, suggesting a lower - stratospheric cooling of between 0.3 °C and 0.6 °C per decade since 1979.

This air conditioned storage container holds supplies needed for launching radiosondes using the automated Balloon - Borne Sounding System.