Global Warming Projection and Climate Change Monitoring
This page outlines two series of publications issued by the Japan Meteorological Agency (JMA).
The first is the Global Warming Projection, which covers the results of experimental numerical projections of future climate with a coupled atmosphere-ocean general circulation model (CGCM) and a regional climate model (RCM) developed by the JMA's Meteorological Research Institute (MRI) to assess the effects of global warming on the climate.
The second is the Climate Change Monitoring Report, which covers the climatic conditions of Japan and the world, recent trends in greenhouse gas concentrations and ozone layer depletion to give a comprehensive perspective of global climate change.
JMA monitors long-term changes in global average surface temperature anomalies for the purpose of monitoring global warming. This page shows long-term changes in annual and monthly anomalies of the global average surface temperature.
Announcement: Figures and data relating to global average surface temperature anomalies have been updated due to re-evaluation of past land observation data reported in the form of CLIMAT messages.
The results of experimental numerical projections of the regional climate after about 100 years with the NonHydrostatic Regional Climate Model (NHRCM) can be seen. In this experiment, the effect of changes in atmospheric CO2 concentrations was investigated. The rate of the increase of CO2 is based on SRES-A1B scenario proposed by IPCC.
Vol. 7
The results of experimental numerical projections of the regional climate after about 100 years with the Coupled atmosphere-ocean Regional Climate Model (CRCM) can be seen. In this experiment, the effect of changes in atmospheric CO2 concentrations was investigated. The rate of the increase of CO2 is based on SRES scenarios A1B and B1.
Vol. 6
The results of experimental numerical projections of the regional climate after about 100 years with new RCM (RCM20) and a urban climate model (UCM) can be seen. The UCM considers the effect of the city and the artificial heat release. In this experiment, the effect of changes in atmospheric CO2 concentrations was investigated. The rate of the increase of CO2 is based on SRES-A2 scenario proposed by IPCC.
Vol. 5
The results of experimental numerical projections of the global climate for 2100 A.D. with new CGCM (CGCM2) can be seen. In this experiment, the effect of changes in atmospheric CO2 concentrations was investigated. The rate of the increase of CO2 is based on Intergovernmental Panel on Climate Change (IPCC) Special Report on Emissions Scenarios (SRES) scenarios A2 and B2, which are provided to the IPCC Third Assessment Report.
Vol. 4
The results of experimental numerical projections of the global and regional climate for 20 years (61 to 80 years after the present) with CGCM and RCM can be seen. In this experiment, the effect of changes in atmospheric CO2 concentrations was investigated. The rate of the increase of CO2 is 1.0%/year in compound.
Vol. 3
The results of experimental numerical projections of the global climate for 100 years with CGCM can be seen. In this experiment, the effect of changes in aerosols as well as atmospheric CO2 concentrations was investigated. The rate of the increase of CO2 is 1.0%/year in compound.
Vol. 2
The results of experimental numerical projections of the global climate for 150 years with CGCM can be seen. In this experiment, Two sets of projection were performed: the one is a transient CO2 experiment in which the atmospheric CO2 concentration gradually increases at the rate of 0.5%/year, and the other is a control experiment in which the atmospheric CO2 concentration is fixed.
Vol. 1
The results of experimental numerical projections of the global climate for 100 years with CGCM can be seen. In this experiment, Two sets of projection were performed: the one is a transient CO2 experiment in which the atmospheric CO2 concentration gradually increases at the rate of 1%/year, and the other is a control experiment in which the atmospheric CO2 concentration is fixed.
Tokyo Climate Center, Climate Prediction Division, 1-3-4 Otemachi, Chiyoda-ku, Tokyo, Japan.
Copyright(C) 2002. Japan Meteorological Agency.
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