NSF NCAR GDEX Dataset d316000

NCAR Community Earth System Model, EaSM Project Dataset

d316000

| DOI: 10.5065/D6TH8JP5

Abstract:

This dataset includes climate model output data from NCAR's Community Earth System Model (CESM) CMIP 5 runs, configured as CCSM4 (CAM4), with output fields for the 3-D global atmosphere at six hourly intervals. A basic set of parameters is provided on 26 model hybrid level surfaces: specific humidity, temperature, wind components, and geopotential height to support regional modeling studies. Additional parameters are provided on single level grids to support analysis studies including surface temperature. Data are available in yearly time-series parameter archive files, and monthly synoptic time archive files. An interface is provided to give users the option to select parameter, temporal, and spatial subsets from the monthly synoptic time archive files. The data are a single 20th Century (1950-2005) simulation and three concomitant Representative Concentration Pathway (RCP) future scenarios spanning 2005-2100. These computer runs were completed in 2011.

Users needing for WRF boundary conditions are recommended to use the bias corrected version of this dataset found in RDA dataset ds316.1, NCAR CESM Global Bias-corrected CMIP5 Output to Support WRF/MPAS Research.

NOTE: All RCP2.6 data has been removed due to corrupted data caused by a model bug.

Variables:

Air Temperature	Geopotential Height	Humidity	Precipitation Rate
Sea Level Pressure	Surface Pressure	Upper Air Temperature	Upper Level Winds

Vertical Levels:

See the detailed metadata for level information.

Data Types:

Grid

Spatial Coverage:

Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=90S Northernmost=90N Detailed coverage information Detailed coverage information 1.25° x 0.942° from 0E to 358.75E and 90S to 90N (288 x 192 Latitude/Longitude)

Data Contributors:

UCAR/NCAR/CISL/RDA

Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research

| UCAR/NCAR/CGD/CCSM

Community Climate System Model, Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research

Related Resources:

CESM site
CESM Experiment Description
CESM data website. Provides access to monthly mean 20th Century and RCP data
Earth System Grid. Provides access to 20thC and RCP monthly mean data

Total Volume:

31.55 TB (Entire dataset) Volume details by dataset product Volume details by dataset product 20th Century Simulation Monthly Synoptic Sort files: 2.48 TB 20th Century Simulation Yearly Timeseries-Parameter files: 2.48 TB rcp4.5 Monthly Synoptic Sort files: 4.43 TB rcp4.5 Yearly Timeseries-Parameter files: 4.43 TB rcp6.0 Monthly Synoptic Sort files: 4.43 TB rcp6.0 Yearly Timeseries-Parameter files: 4.43 TB rcp8.5 Monthly Synoptic Sort files: 4.43 TB rcp8.5 Yearly Timeseries-Parameter files: 4.43 TB

Data Formats:

netCDF

Related GDEX Datasets:

d316001

NCAR CESM Global Bias-Corrected CMIP5 Output to Support WRF/MPAS Research

More Details:

View a more detailed summary of the data, including specific date ranges and locations by parameter

Metadata Record:

Data License:

This work is licensed under a Creative Commons Attribution 4.0 International License.

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