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Tag: Temperature

El Niño-Southern Oscillation (ENSO) Phenomenon
El Niño describes 'the warm phase of a naturally occurring sea surface temperature oscillation in the tropical Pacific Ocean', and southern oscillation refers to 'a seesaw shift in surface air pressure at Darwin, Austral...
17 May 2005 - by Delphine Digout, UNEP/GRID-Arendal
ENSO impact on Southern Africa
El Niño describes 'the warm phase of a naturally occurring sea surface temperature oscillation in the tropical Pacific Ocean', southern oscillation refers to 'a seesaw shift in surface air pressure at Darwin, Australia a...
17 May 2005 - by Delphine Digout, UNEP/GRID-Arendal
Impact of Temperature Rise on Robusta Coffee in Uganda
Developing countries, whose economies often rely heavily on one or two agricultural products, are especially vulnerable to climate change. This graphic shows that with an increase of only 2 degrees Celsius, there would b...
17 May 2005 - by Otto Simonett, UNEP/GRID-Arendal
Comparison between modeled temperature rise and observations of temperature since 1860
Natural forcing (solar variation and volcanic activity) alone cannot explain the recent global temperature increase. This graphic shows the temperature anomalies (in degrees Celsius) that were expected to occur due to na...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
History of variations of the temperature for Africa in relation to the World
Africa is following the global trend of recent increases in temperatures. This resource includes three graphics. The first shows the main temperature anomaly in degrees Celsius in Africa from 1900 to 2000. The second sho...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Air temperature in the Barents Region in summer
The Barents region is in the Arctic and covers the area of Western Russia and the northern areas of Finland, Sweden and Norway. In order to better understand the trends in global warming accurate readings of temperature ...
04 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Air temperature in the Barents Region in winter
The Barents region is in the Arctic and covers the area of Western Russia and the northern areas of Finland, Sweden and Norway. In order to better understand the trends in global warming accurate readings of temperature ...
04 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Dates of river ice freeze-up in the Arctic
Presenting the relative dates of river freeze-up in the Arctic and the climatic condititions surrounding that, thus outlining the relative changes in temperature and conditions throughout the circumpolar Arctic.
21 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Thermohaline Circulation
Thermohaline circulation is a 3-dimensional flow involving surface and deep ocean waters, which is driven by differences in water temperature and salinity. (Image source: NOAA/NCDC).
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Atmospheric Circulation Patterns
Carbon cycling in the world’s oceans. The flow of carbon dioxide across the air-sea interface is a function of CO2 solubility in sea water (Solubility Pump). The amount of CO2 dissolved in sea water is mainly influenced ...
06 Oct 2009 - by Giulio Frigieri
Arctic Ozone Depletion and Stratospheric Temperature
Changes in ozone amounts are closely linked to temperature, with colder temperatures resulting in more polar stratospheric clouds and lower ozone levels. Atmospheric motions drive the year-to-year temperature changes.The...
02 Nov 2009 - by Emmanuelle Bournay, UNEP/GRID-Arendal
Ozone Hole Size
The extent of ozone depletion for any given period depends on complex interaction between chemical and climatic factors such as temperature and wind. The unusually high levels of depletion in 1988, 1993 and 2002 were due...
02 Nov 2009 - by Emmanuelle Bournay, UNEP/GRID-Arendal
Glacier volume change forecasts
Oerlemans et al. (1998) conducted modelling experiments for a sample of 12 glaciers and ice caps, to determine volume changes under a range of temperature and precipitation forcings (Fig. 3). The range of glacier respon...
06 Dec 2010 - by Riccardo Pravettoni
Seasonal patterns of precipitation and runoff
The infuence of glaciers on seasonal distribution of river fow is strongly dependent on annual temperature and precipitation cycles, and the proportion of the catchment occupied by glacier ice. Figure 4 compares precip...
06 Dec 2010 - by Riccardo Pravettoni
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