Are atmospheric Greenhouse effects apparent in the climatic record of the contiguous U. S. (1895-1987)

The temperature and precipitation climate records for the US have been examined. These records consists of area-averages across the contiguous US and northern plains. They are based on as many as 6,000 stations. Time series of these data were tested for constancy of the mean using the Spearman rank...

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Bibliographic Details
Published inGeophysical research letters Vol. 16:1
Main Authors Hanson, K., Maul, G.A., Karl, T.R.
Format Journal Article
LanguageEnglish
Published United States 01.01.1989
Subjects
540110
AMBIENT TEMPERATURE
ATMOSPHERIC PRECIPITATIONS
CLIMATES
DATA ANALYSIS
DEVELOPED COUNTRIES
ENVIRONMENTAL SCIENCES
HISTORICAL ASPECTS
MATHEMATICS
NORTH AMERICA
TIME-SERIES ANALYSIS
USA
VARIATIONS
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Summary:The temperature and precipitation climate records for the US have been examined. These records consists of area-averages across the contiguous US and northern plains. They are based on as many as 6,000 stations. Time series of these data were tested for constancy of the mean using the Spearman rank test and two-phase regression. Test results indicate that overall trends are near zero. The only evidence for a long-term trend is in Fall precipitation for the contiguous US. This trend appears to result from higher fall precipitation during the period 1970-1987 compared to the remainder during the period 1970-1987 compared to the remainder of the period (1895-1969).
ISSN:0094-8276
1944-8007
DOI:10.1029/GL016i001p00049