HomeAboutActivitiesMapsPhotosPublicationsNews
 
Home >> Vital Climate Change Graphics Update >> Precipitation changes: trends over land from 1900 to 2000
File type Download Size Language
.png .png Download 258 kb -
.jpg .jpg Download 100 kb -
.pdf .pdf Download 654 kb -
Uploaded on Tuesday 21 Feb 2012 by GRID-Arendal

Precipitation changes: trends over land from 1900 to 2000

Year: 2005 Author: Philippe Rekacewicz, UNEP/GRID-Arendal
Description:
Precipitation has very likely increased during the 20th century by 5 to 10% over most mid- and high latitudes of the Northern Hemisphere continents, but in contrast, rainfall has likely decreased by 3% on average over much of the subtropical land areas. There has likely been a 2 to 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 20th century. There were relatively small long-term increases over the 20th century in land areas experiencing severe drought or severe wetness, but in many regions these changes are dominated by inter-decadal and multidecadal climate variability with no significant trends evident over the 20th century.
Views: 495     Downloads: 323     Rating: 5
Main greenhouse gases
Back to the future: The science of building scenarios
Temperature and CO2 concentration in the atmosphere over the past 400 000 years
Temperature trends and projections
Variations of the Earth's surface temperature for the past 100 millions years
Past and future CO2 concentrations
Cooling factors
Kyoto protocol, 2002 target status