CCSRNIES_SRES_A2_VGRD850

Project: IPCC Data Distribution Centre : Third Assessment Report data sets
The Intergovernmental Panel on Climate Change (IPCC) has been established by WMO und UNEP
to assess scientific, technical and socio-economic information, relevant for the
understanding of climate change, its potential impacts and option for adaption and migration.
Projection of future trends for a number of key variables are provided through this
section of the DDC (http://www.mad.zmaw.de/IPCC_DDC/html/ddc_gcmdata.html).
This information contained in either IS92 emission scenarios (IPCC 1992), the Special
Report on Emission Scenarios (IPCC 2000, SRES) or published model studies using data from
these scenarios.
Six alternative IPCC scenarios (IS92a to f) were published in the 1992 Supplementary Report
to the IPCC Assessment. These scenarios embodied a wide array of assumption affecting how
future greenhouse gas emissions might evolve in the absence of climate policies beyond
those already adoped.
The SRES scenarios have been constructed to explore future developments
in the global enviromental with special reference to the production of greenhouse gases
and aerosol precursor emission.
A set of four scenario families (A1, A2, B1, B2) have been developed that each of this
storylines describes one possible demographic, polito-economic, societal and technological
future. Model experiments, also using different forcing scenarios, were calculated
at other modeling centres.
Emissions Scenarios. 2000 ,Special Report of the Intergovernmental Panel on Climate Change
Nebojsa Nakicenovic and Rob Swart (Eds.)
Cambridge University Press, UK. pp 570
Summary: The SRES data sets were published by the IPCC in 2000 and classified
into four different scenario families (A1, A2, B1, B2).
SRES_A2 storyline describes a very heterogeneous world
with the underlying theme of self-reliance and preservation
of local identities. It results in this scenario a continous
increasing population together with a slower economic growth
and technological change.
The model developed by the Center for Climate System Resaerch/
National Institute for Enviromental Studies in Tokyo consists
of the atmospheric component which has vertical resolution of
20 levels and the triangular truncation at wavenumber 21 (T21).
The ocean model has 17 vertical levels and the same resolution.
CCSRNIES_AGCM (http://www.ccsr.u-tokyo.ac.jp/ehtml/eatmos.html ).
CCSRNIES_OGCM (http://www.ccsr.u-tokyo.ac.jp/ehtml/eocean.html ).
The changes of anthropogenic emissions of CO2, CH4, N2O and
sulphur dioxide are prescribed according to the above
mentioned scenario.

项目：政府间气候变化专门委员会（Intergovernmental Panel on Climate Change, IPCC）数据分发中心第三次评估报告数据集

政府间气候变化专门委员会由世界气象组织（World Meteorological Organization, WMO）与联合国环境规划署（United Nations Environment Programme, UNEP）共同创立，旨在评估与气候变化认知、气候变化潜在影响以及适应与迁移相关的科学、技术与社会经济信息。

本数据分发中心（DDC）的该板块提供了若干关键变量的未来趋势预测数据，访问链接为：http://www.mad.zmaw.de/IPCC_DDC/html/ddc_gcmdata.html。

此类信息涵盖于IS92排放情景（IPCC 1992）、《排放情景特别报告》（Special Report on Emission Scenarios, IPCC 2000, SRES），或是基于上述情景数据开展的已发表模型研究中。

IPCC在1992年《评估报告补充报告》中发布了6种备选情景（IS92a至IS92f）。这些情景涵盖了一系列假设条件，用以描述在已实施气候政策之外无额外气候政策的情况下，未来温室气体排放的演变路径。

SRES情景旨在探究全球环境的未来发展态势，重点关注温室气体和气溶胶前体物的排放情况。

研究团队构建了4组情景族（A1、A2、B1、B2），每组情景均对应一种可能的人口、政治经济、社会与技术发展路径。其他模型研究中心也基于不同的强迫情景开展了模型实验计算。

《排放情景》，2000年，政府间气候变化专门委员会官方特别报告，Nebojsa Nakicenovic与Rob Swart主编，英国剑桥大学出版社，共570页。

摘要：SRES数据集由IPCC于2000年发布，共分为4个情景族（A1、A2、B1、B2）。
SRES_A2情景对应的世界呈现高度异质性，其核心主题为自给自足与本地身份认同的保留。该情景下，人口持续增长，但经济增长与技术变革速度相对缓慢。

由东京气候系统研究中心/国立环境研究所开发的模型包含大气分量与海洋分量：大气分量具备20层垂直分辨率，采用波数21的三角截断格式（T21）；海洋模型具备17层垂直分辨率，空间分辨率与大气分量一致。

CCSRNIES_AGCM模型（访问链接：http://www.ccsr.u-tokyo.ac.jp/ehtml/eatmos.html）；CCSRNIES_OGCM模型（访问链接：http://www.ccsr.u-tokyo.ac.jp/ehtml/eocean.html）。

该模型依据前述情景，规定了二氧化碳（CO₂）、甲烷（CH₄）、一氧化二氮（N₂O）与二氧化硫的人为排放变化路径。