 | Intergovernmental Panel on Climate Change. Working Group I. - 2001 - 416 pages
...likely7 to have been a reduction of about two weeks in the annual duration of lake and river ice cover in the mid- and high latitudes of the Northern Hemisphere, over the 20th century. • There has been a widespread retreat of mountain glaciers in non-polar regions during... | |
 | V. Subramanian - 2002 - 258 pages
...to 30° N) land areas during the 20th century by about 0.3% per decade. In contrast to the Northern Hemisphere, no comparable systematic changes have...precipitation over the oceans. • In the mid- and high-latitudes of the Northern Hemisphere over the latter half of the 20th century, it is likely that... | |
 | Anthony J. McMichael - 2003 - 340 pages
...Hemisphere; « it is likely that there was a 2-4% increase in the frequency of heavy precipitation events in mid and high latitudes of the Northern Hemisphere over the latter half of the twentieth century; • since 1950, it is very likely that there was a reduction in the frequency of... | |
 | Patrick J. Michaels - 2005 - 312 pages
...tenuous, at best (see also Felzer and Heard 1999). Changes in Precipitation Frequency and Intensity In the mid- and high latitudes of the Northern Hemisphere over the latter half of the twentieth century, it is likely that there has been a 2 percent to 4 percent increase in the frequency... | |
 | Daniel A. Vallero - 2006 - 596 pages
...likely to have been a reduction of about two weeks in the annual duration of lake and river ice cover in the mid- and high latitudes of the Northern Hemisphere, over the twentieth century. • There has been a widespread retreat of mountain glaciers in nonpolar regions... | |
 | R. N. Gibson, R. J. A. Atkinson, J. D. M. Gordon - 2006 - 536 pages
...rainfall has increased by 0.2-0.3% per decade over the tropical land areas (10°N-10°S) (IPCC 2001b). In the mid and high latitudes of the Northern Hemisphere over the latter half of the twentieth century, there has probably been a 2^% increase in the frequency of heavy precipitation events... | |
 | G. C. Boere, Colin A. Galbraith, David A. Stroud - 2006 - 836 pages
...throughout the atmosphere leading to a 2-4% increase in the frequency of heavy precipitation events in the mid- and high latitudes of the Northern Hemisphere over the latter half of the twentieth century (Fig. 3). The severity of droughts has increased, with summer drying and an associated... | |
 | Stefan Gössling, Colin Michael Hall - 2006 - 350 pages
...concerned, there seems to be a 2-4 percent increase in the frequency of heavy precipitation events in the mid- and high latitudes of the northern hemisphere over the latter half of the twentieth century. Heavy precipitation events can be a result of changes in atmospheric moisture, thunderstorm... | |
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In the mid- and high latitudes of the Northern Hemisphere over the latter half of the 20th century, it is likely7 that there has been a 2 to 4% increase in the frequency of heavy precipitation events. 
