| Autor: |
P. D. Jones, S. C. B. Raper, R. S. Bradley, H. F. Diaz, P. M. Kellyo, T. M. L. Wigley |
| Rok vydání: |
1986 |
| Předmět: |
|
| Zdroj: |
Journal of Climate and Applied Meteorology. 25:161-179 |
| ISSN: |
0733-3021 |
| DOI: |
10.1175/1520-0450(1986)025<0161:nhsatv>2.0.co;2 |
| Popis: |
A new compilation of monthly mean surface air temperature for the Northern Hemisphere for 1851–1984 is presented based on land-based meteorological station data and fixed-position weather ship data. This compilation differs from others in two ways. First, a considerable amount of new data, previously hidden away in archives, has been included, thus improving both spatial and temporal coverage. Second, the station data have been analyzed to assess their homogeneity. Only reliable or corrected station data have been used in calculating area averages. Grid point temperature estimates have been made by interpolating onto a 5° latitude by 10° longitude grid for each month of the 134 years. In the period of best data coverage, 58% of the area of the Northern Hemisphere is covered by the available data network. (The remaining area is mainly ocean too far from land-based stations to warrant extrapolation.) The reliability of hemispheric estimates is assessed for earlier periods when coverage is less than... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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