| Intergovernmental Panel on Climate Change - 1996 - 594 pages
...over land during the 20th century, although precipitation has been relatively low since about 1980. Precipitation has increased over land in high latitudes...Northern Hemisphere, especially during the cold season, concomitant with temperature increases. A step-like decrease of precipitation occurred after the 1960s... | |
| Intergovernmental Panel on Climate Change - 1996 - 594 pages
...apparent increase requires investigation of possible time- varying biases. 3.3.9 Summary of Section 3.3. Precipitation has increased over land in high latitudes...of the Northern Hemisphere, especially during the autumn. A decrease of precipitation occurred after the 1960s over the subtropics and tropics from Africa... | |
| Kevin T. Pickering, Lewis A. Owen - 1997 - 584 pages
...example, the recent warming has been greatest over the mid-latitude continents in winter and spring, with a few areas of cooling, such as the North Atlantic...Northern Hemisphere, especially during the cold season. • The 1990 to mid- 1995 persistent warm phase of the El Niņo Southern Oscillation was unusual in... | |
| John T. Houghton - 1997 - 270 pages
...those of temperature; precipitation can also be extremely variable. However, there is evidence that precipitation has increased over land in high latitudes of the northern hemisphere especially in the winter. The broad features of these changes in temperature and precipitation are consistent... | |
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