NCAR Nested Regional Climate Model (NRCM)

This dataset contains climate model output data from the NCAR Nested Regional Climate Model (NRCM). The NRCM combines the strengths of the NCAR Weather Research and Forecasting (WRF) model and the NCAR Community Climate System Model (CCSM) into an instrument that will allow for fundamental progress on the understanding and prediction of regional climate variability and change. In particular, embedding WRF within CCSM will allow scientists to resolve processes that occur at the regional scale, as well as the influence of those processes on the large-scale climate, thereby improving the fidelity of climate change simulations and their utility for local and regional planning. The output fields in this dataset consist of two- and three-dimensional arrays at three- and six-hourly intervals. A basic set of three-dimensional parameters is provided on model pressure levels: relative humidity, temperature, wind components, geopotential height, and potential vorticity. Additional two-dimensional parameters are provided at the model surface or near-surface level, and potential vorticity arrays are also provided on the 320 K and 345 K isentropic surfaces. Data are available as monthly time series files in NetCDF. The data currently provided are from the climate runs with regional model domain extending over the eastern North Pacific Ocean, North Atlantic Ocean, North and Central America, northern South America, Continental Europe, and North Africa. The simulation covers the periods 1995-2005, 2020-2030, and 2045-2055.

本数据集包含美国国家大气研究中心（NCAR）嵌套区域气候模式（NRCM, Nested Regional Climate Model）的气候模式输出数据。该模式整合了美国国家大气研究中心（NCAR）天气研究与预报模式（WRF, Weather Research and Forecasting）以及社区气候系统模式（CCSM, Community Climate System Model）的优势，打造出可助力区域气候变率与变化的认知及预测研究取得根本性进展的工具。具体而言，将WRF嵌入CCSM后，科研人员能够解析区域尺度的物理过程，以及此类过程对大尺度气候的影响，从而提升气候变化模拟的保真度，增强其在地方及区域规划中的应用价值。本数据集的输出场包含每3小时、每6小时输出一次的二维与三维数组。基础三维参数以模式气压层形式提供，包括相对湿度、气温、风场分量、位势高度与位涡。附加二维参数则提供于模式地表或近地表层面，同时还在320开尔文与345开尔文的等熵面上提供了位涡数组。数据以NetCDF格式的逐月时间序列文件形式提供。当前提供的数据来自区域模式域覆盖东北太平洋、北大西洋、北美与中美洲、南美洲北部、欧洲大陆以及北非的气候模拟试验。模拟时段涵盖1995-2005年、2020-2030年及2045-2055年。

搜集汇总

背景与挑战

背景概述

NCAR Nested Regional Climate Model (NRCM)数据集是一个历史气候模型输出数据集，建议仅作辅助使用，已可能被更新数据集取代。它结合了WRF和CCSM模型优势，提供1995-2005、2020-2030和2045-2055三个时期的区域气候模拟数据，覆盖东太平洋、大西洋、美洲和欧洲等地区，包含温度、湿度和风等多维参数，以NetCDF格式存储，总容量2.14 TB，用于支持区域气候变率和变化研究。