Northern hemisphere temperature trends: A possible greenhouse gas effect
- Princeton Univ., NJ (USA)
Radiosonde temperature data from 147 stations in the Northern Hemisphere for the period 1964-85 have been used to investigate recent temperature trends in the troposphere and lower stratosphere. Experiments with atmospheric general circulation models indicate that increased concentrations of greenhouse gases in the atmosphere will lead to reduced temperatures in the stratosphere as well as increased temperatures in the troposphere. An index designed to identify this signal has been computed from the station data. This index has positive trend at most of the stations, consistent with the greenhouse effect. Over the hemisphere, the signal is statistically significant. However, opposing temperature variations in the troposphere and stratosphere are associated with many other forcing mechanisms and the results cannot be used to identify a specific mechanism.
- OSTI ID:
- 5550008
- Journal Information:
- Geophysical Research Letters (American Geophysical Union); (USA), Journal Name: Geophysical Research Letters (American Geophysical Union); (USA) Vol. 16:5; ISSN 0094-8276; ISSN GPRLA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Influence of volcanic eruptions on the troposphere through stratospheric dynamical processes in the northern hemisphere winter
Northern hemisphere extratropical circulation anomalies and recent January land surface temperature trends
Related Subjects
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
54 ENVIRONMENTAL SCIENCES
540110*
AMBIENT TEMPERATURE
CLIMATES
EARTH ATMOSPHERE
EARTH PLANET
FORECASTING
GENERAL CIRCULATION MODELS
GREENHOUSE EFFECT
MATHEMATICAL MODELS
NORTHERN HEMISPHERE
PLANETS
STRATOSPHERE
TEMPERATURE MEASUREMENT
TROPOSPHERE
VARIATIONS