Tag: Rain

Landslides and floods in Armenia in 2003-2014
Armenia’s main threats are from land- and mudslides, primarily on mountain slopes and hillsides. About one-fifth of all communities in Armenia have been affected by landslides. Areas with the highest risk of mudslides in...
14 Jun 2015 - by Manana Kurtubadze
Extreme rainfall events – Salween and Mekong
Extreme rainfall is increasing in the southernmost part of the Mekong basin and southern and southwestern part of the Salween basin, while extremes are decreasing in most parts of the central and southern parts of the Me...
14 Jun 2015 - by Riccardo Pravettoni
Salween-Mekong basins climate indicators – Rainfall & Temperature
Rainfall: The Salween and Mekong river basins receive an average of 1,226 mm of rainfall per year. Out of the total precipitation, 17% and 69% are received during the pre-monsoon and monsoon season, respectively, whils...
14 Jun 2015 - by Riccardo Pravettoni
Upper Salween/Mekong basins future climate – Rainfall & Temperature
Rainfall: Rainfall projections in summer show an increasing trend over both upper basins, with an increase of about 5–10% over the southern areas where the normal precipitation is low. In the upper part of these basins...
14 Jun 2015 - by Riccardo Pravettoni
Extreme rainfall events – Indus
Extreme rainfall events have increased in intensity over the main mountain range in the upper basin, especially in the eastern section, while the number of rainy days has decreased. In summary, this area now receives mor...
14 Jun 2015 - by Riccardo Pravettoni
Indus basin climate indicators – Rainfall & Temperature
Rainfall: Overall, the upper basin receives more precipitation than the lower basin and plays an important role in water availability in the whole basin throughout the year. Within the upper basin, the main mountain ran...
14 Jun 2015 - by Riccardo Pravettoni
Indus basin future climate – Rainfall & Temperature
Rainfall: Precipitation is projected to increase in summer over the northern, central-eastern and southern parts of the Indus basin, while over the central-western part of the basin it is projected to decrease. In the r...
14 Jun 2015 - by Riccardo Pravettoni
HKH climate indicators – Rainfall
The average annual rainfall over the HKH region (5 basins studied here) is approximately 880 mm, with variability of just 5% between years and high spatial variability. The highest rainfall amounts, accounting for more t...
14 Jun 2015 - by Riccardo Pravettoni
Ganges basin climate indicators – Rainfall & Temperature
Rainfall: The Ganges basin receives nearly 1,000 mm of precipitation annually. The greatest amount of rain – 84% of the annual total – falls during the monsoon season. Of the remainder, 7% falls during the premonsoon se...
14 Jun 2015 - by Riccardo Pravettoni
Extreme rainfall events – Brahmaputra
No specific trend of change in the amount of rainfall has been observed between the baseline period of 1951–1980 and 1981–2007. Extreme rainfall appears to be decreasing in the north, but increasing over eastern portions...
14 Jun 2015 - by Riccardo Pravettoni
Brahmaputra basin climate indicators – Rainfall & Temperature
Rainfall: The Brahmaputra basin receives an average of just over 1,100 mm of rain annually. Of the annual total, 70% is received during the monsoon season (June– September) and 20% in the pre-monsoon season. Winter is t...
14 Jun 2015 - by Riccardo Pravettoni
Brahmaputra basin future climate – Rainfall & Temperature
Rainfall: Future scenarios project a 5–25% increase in summer rainfall over most of the basin up until 2050. According to the wettest scenario (RCP 8.5), the increase could be more than 25%, especially in the northern a...
14 Jun 2015 - by Riccardo Pravettoni
Zambezi River Basin average rainfall
Average annual rainfall across the river basin varies from 500mm in the extreme south and southwest part of the basin to more than 1 400 mm in the Upper Zambezi and Kabompo sub-basins, in the north-eastern shores of Lake...
14 Oct 2013 - by GRID-Arendal
Trends in groundwater nitrate concentrations
The graph shows the development of Nitrate concentration in groundwater from 1980 to 1995 in France, Britain and Denmark combined. Nitrate is a naturally occurring compound and is normal in small amounts, but excess amou...
14 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Transport SO2 emissions
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic shows transport SO2 emissions from 1990 to 1998 ...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Rapid retreat of glaciers in the Cordillera Blanca, Peru
There is now ample evidence of a major retreat of most mountain glaciers during the last 100 years in response to widespread increases in temperature. In recent decades, the rate of glacial recession has increased tremen...
17 May 2005 - by GRID-Arendal
Quick retreat of the Santa Rosa glacier, Peru
Several mountain glaciers now disappear at a frightening rate as in the Santa Rosa glacier of Peru. A warmer climate often leads to increased precipitation. Much of the increased precipitation comes as rain instead of s...
17 May 2005 - by GRID-Arendal
CO2 emissions from land use change
Emissions of carbon dioxide due to changes in land use mainly come from the cutting down of forests and instead using the land for agriculture or built-up areas, urbanisation, roads etc. When large areas of rain forests ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Gold production of the Ok Tedi mine
The Ok Tedi mine is located high in the rain forest covered Star Mountains of Papua New Guinea. Prior to 1981 the local Wopkaimin people lived a subsistence existence in one of the most isolated places on earth. That was...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Ok Tedi mine
The Ok Tedi mine is located high in the rain forest covered Star Mountains of Papua New Guinea. Prior to 1981 the local Wopkaimin people lived a subsistence existence in one of the most isolated places on earth. That was...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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