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Tag: Model

Human impact, year 2002 (Miller cylindrical projection)
The GLOBIO-2 model is based on settlements and modern infrastructure such as roads, powerlines and pipelines. This map presents the current situation, as a baseline for the GEO-3 scenarios. The main wilderness areas in t...
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
Human impact, year 2002
The GLOBIO-2 model is based on settlements and modern infrastructure such as roads, powerlines and pipelines. This map presents the current situation, as a baseline for the GEO-3 scenarios. The main wilderness areas in t...
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
Human impact, year 2032 (security first scenario)
The GLOBIO-2 model is based on settlements and modern infrastructure such as roads, powerlines and pipelines. This map presents the possible situation in 2032, using the GEO-3 security first scenario. This scenario assum...
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
Human impact, year 2032 (markets first scenario)
The GLOBIO-2 model is based on settlements and modern infrastructure such as roads, powerlines and pipelines. This map presents the possible situation in 2032, using the GEO-3 markets first scenario. This scenario sugges...
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
Human impact, year 2002 (Interrupted projection)
The GLOBIO-2 model is based on settlements and modern infrastructure such as roads, powerlines and pipelines. This map presents the current situation, as a baseline for the GEO-3 scenarios. The main wilderness areas in t...
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
Human impact, year 2002 (Miller cylindrical projection)
The GLOBIO-2 model is based on settlements and modern infrastructure such as roads, powerlines and pipelines. This map presents the current situation, as a baseline for the GEO-3 scenarios. The main wilderness areas in t...
26 Jan 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Human impact, year 2002
The GLOBIO-2 model is based on settlements and modern infrastructure such as roads, powerlines and pipelines. This map presents the current situation, as a baseline for the GEO-3 scenarios. The main wilderness areas in t...
26 Jan 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Human impact, year 2002 (Interrupted projection)
The GLOBIO-2 model is based on settlements and modern infrastructure such as roads, powerlines and pipelines. This map presents the current situation, as a baseline for the GEO-3 scenarios. The main wilderness areas in t...
26 Jan 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Impact of human activities on reindeer habitat - Barents region
The impact of infrastructure development on reindeer potentially threatens the cultural traditions of the Barents region indigenous people and their chosen way of life. The probability of impact on wildlife, vegetation a...
26 Jan 2006 - by Philippe Rekacewicz, Julien Rouaud, UNEP/GRID-Arendal
Loss of Great Ape habitat 2002-2032 (Africa)
Based on population pressures the GLOBIO2 model has assessed the current and future human impacts on Great Ape habitat in Africa (Chimpanzee, Bonobo and Gorilla). The analysis shows a vast reduction of some of the world'...
26 Jan 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Radioactive, chemical and biological hazards in Central Asia
The Soviet development model for Central Asia was based on building large-scale irrigation schemes enabling the region to become a major cotton producer and expanding the mining and processing industry. Industrial operat...
16 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Projected temperatures in the 21th century
Projected Arctic annual land temperature increases for the first half of the 21st century relative to the average temperature for 1980–99. The average of the IPCC models (the blue line) shows an increase of 3ºC by 2050. ...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Projected reduction in snow 2080-2100
Using one specific climate change model (ECHAM5) and the SRES A2 emission scenario (run 2) the projected loss of snow amounts to decreases of 60–80 per cent in monthly maximum snow water equivalent over most middle latit...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Projected sea-level rise for the 21st century
The projected range of global averaged sea-level rise from the IPCC 2001 Assessment Report for the period 1990 to 2100 is shown by the lines and shading. The updated AR4 IPCC projections made are shown by the bars plotte...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Sea ice concentration change over the 21st century as projected by climate models
The data are taken from climate model experiments of 12 (out of 24) different models that were conducted for the IPCC Assessment Report 4 using the SRES A1B greenhouse gas emission scenario. Plots on the right show chang...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Arctic temperatures in the 20th century, modeled and observed
Observed Arctic winter land temperatures and IPCC model recreations for the 20th century. Note that although these model runs are able to capture the range of Arctic warm and cold periods, the timing of the peaks varies,...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Projected increase (days) of the navigation season through the Northern Sea Route as an average of 5 ACIA model projections
The Northern Sea Route (NSR) is a seasonally ice-covered marine shipping lane along the Russian coasts, from Novaya Zemlya in the west to the Bering Strait in the east. The NSR is administered by the Russian Ministry of ...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Projected changes in permafrost (Northern Hemisphere)
Modelled permafrost temperatures (mean annual temperature at the permafrost surface) for the Northern Hemisphere (Arctic), derived by applying climate conditions to a spatially distributed permafrost model. (a) Present-d...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Temperature increases in the Antarctic due to climate change, 2090 (NCAR-CCM3, SRES A2 experiment)
Climate change, due to increased concentrations of greenhouse gases in the atmosphere, has not lead as clear changes in the Antarctic as in the Arctic. Some of the ice shelves of the Antarctic peninsula have split up and...
31 Jul 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Projected temperature increases in the Arctic due to climate change, 2090 (NCAR-CCM3, SRES A2 experiment)
Climate change, due to increased concentrations of greenhouse gases in the atmosphere, has lead to increased temperatures and large scale changes in the Arctic. The Arctic sea ice is decreasing, permafrost thawing and th...
31 Jul 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
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