Spatial and temporal persistence of mean monthly temperature on two GCM grid cells
✍ Scribed by C. Hoff
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 278 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0899-8418
- DOI
- 10.1002/joc.641
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✦ Synopsis
Abstract
The study investigates a simple statistically based scheme for translating large scale general circulation model (GCM) information to local scale where natural and socio‐economic environments are dependent on climatic variables. Two GCM grid cells were chosen, one centred on Montpellier (France), the other on Sevilla (Spain). For each meteorological station over these cells, the relative values of mean monthly temperature compared with the GCM grid cell mean were expressed as percentages, and were called ‘relative temperatures’ (RT). Using geostatistical procedures, the spatial structure of RT was sought on both GCM grid cells, with the altitude as external drift. The months of January and July were studied during the 1979–1993 period. For each month, the characteristics of the variograms of RT are close for each year of the period. There is also a good inter‐annual persistence of spatial patterns of RT when the correlation between altitude and RT is significant. The results will be of great interest for easily estimating local values of mean monthly temperature at any place within each grid cell without further calculation. Copyright © 2001 Royal Meteorological Society