Dynamic Contribution to Hemispheric Mean Temperature Trends
- 3 November 1995
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 270 (5237) , 780-783
- https://doi.org/10.1126/science.270.5237.780
Abstract
On the basis of land station data from the Northern Hemisphere, it was determined that roughly half of the temporal variance of monthly mean hemispheric mean anomalies in surface air temperature during the period from 1900 through 1990 were linearly related to the amplitude of a distinctive spatial pattern in which the oceans are anomalously cold and the continents are anomalously warm poleward of 40 degrees north when the hemisphere is warm. Apart from an upward trend since 1975, to which El Niño has contributed, the amplitude time series associated with this pattern resembles seasonally dependent white noise. It is argued that the variability associated with this pattern is dynamically induced and is not necessarily an integral part of the fingerprint of global warming.Keywords
This publication has 15 references indexed in Scilit:
- Decadal Trends in the North Atlantic Oscillation: Regional Temperatures and PrecipitationScience, 1995
- Causes of Decadal Climate Variability over the North Pacific and North AmericaScience, 1994
- Simulations of Atmospheric Variability Induced by Sea Surface Temperatures and Implications for Global WarmingScience, 1994
- On the Roles of Tropical and Midlatitude SSTs in Forcing Interannual to Interdecadal Variability in the Winter Northern Hemisphere CirculationJournal of Climate, 1994
- Decadal-scale climate variability in the tropical and North Pacific during the 1970s and 1980s: observations and model resultsClimate Dynamics, 1994
- Interdecadal changes of surface temperature since the late nineteenth centuryJournal of Geophysical Research: Atmospheres, 1994
- Correlation methods in fingerprint detection studiesClimate Dynamics, 1993
- An Intercomparison of Methods for Finding Coupled Patterns in Climate DataJournal of Climate, 1992
- Northern Hemisphere Surface Air Temperature Variations: 1851–1984Journal of Climate and Applied Meteorology, 1986
- Predictability of Sea Level Pressure Anomalies Over the North Pacific OceanJournal of Physical Oceanography, 1978