IPCC DDC AR4 GFDL-CM2.1 SRESB1 run1

These data represent monthly averaged values of selected variables for the Data Distribution Centre (DDC) of the Intergovernmental Panel on Climate Change (IPCC). (see also https://www.ipcc-data.org/)

The model output prepared for IPCC Fourth Assessment SRES B1 experiment.

These datasets are available in netCDF and GRIB format.

For this experiment there is only one run available.

Initial conditions for this experiment were taken from 1 January 2001 of the climate of the 20th century experiment named CM2.1U-D4_1860-2000-AllForc_H2. Several time varying forcing agents used during the first 100 years of this CM2.1U-H2_SresB1_Y1 experiment were based on output of the MOZART global atmospheric chemistry climate model when driven with the SRES B1 emission scenarios. For the CM2.1U-H2_SresB1_Y1 experiment volcanic aerosols were zero, land surface cover types were time invariant, and solar irradiance varied seasonally based upon late 20th century averages but with no interannual variation. All forcing agents were held constant after year 2100.

Model output data for CMIP3 in higher temporal resolutions and further variables are available in ESGF at https://esgf-node.llnl.gov/search/cmip3/.

本数据集收录了政府间气候变化专门委员会（IPCC）数据分布中心（DDC）所选变量的月度平均值。（详见 https://www.ipcc-data.org/）

本模型输出是为 IPCC 第四次评估报告 SRES B1 实验准备的。

这些数据集以 netCDF 和 GRIB 格式提供。

对于本实验，仅提供一次运行。

本实验的初始条件取自20世纪气候实验 CM2.1U-D4_1860-2000-AllForc_H2 中的 2001年1月1日。CM2.1U-H2_SresB1_Y1 实验的前100年中所使用的几个时间变化的强迫因子基于使用 SRES B1 排放情景驱动的 MOZART 全球大气化学气候模型输出。对于 CM2.1U-H2_SresB1_Y1 实验而言，火山气溶胶为零，地表覆盖类型随时间保持不变，太阳辐射强度基于20世纪末的平均值按季节变化，但无年际变化。所有强迫因子在2100年之后保持恒定。

更高时间分辨率和更多变量的 CMIP3 模型输出数据可在 ESGF 上获得，访问链接为 https://esgf-node.llnl.gov/search/cmip3/。

搜集汇总

背景与挑战

背景概述

该数据集是IPCC第四次评估报告中的GFDL-CM2.1模型在SRES B1排放情景下的模拟结果，提供全球范围内的月平均气候变量数据，时间覆盖从2001年到2300年，适用于气候变化分析和研究。