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Data Access

The experiment CLM_B1_1_D3 contains European regional climate simulations of the years 2001-2100 on a regular geographical grid. The data are generated during post processing of the corresponding data stream 2 experiment (CLM_B1_1_D2) of regional climate model runs (CLM non hydrostatic, see http://www.clm-community.eu ). It is forced by the first (_1_) run of the global IPCC scenario B1 (EH5-T63L31_OM-GR1.5L40_B1_1_6H), which describes a possible future world with global population peaking in mid-century and rapid change in economic structures towards a service and information economy. An introduction of clean and resource efficient technologies was assumed.
In data stream 3 (_D3) the output variables of CLM data stream 2 and some additionally derived parameters are stored as time series on a regular geographical grid (0.2 degree res.). The transformation has been done via CDO routines. Please note, that none of the variables has been corrected for topographical differences between the two grids.
The model domain of data stream 3 covers the European region starting at 34.6/-10.6 (lat/lon, centre of lower left grid box). The number of grid points is 177/238 (lat/lon).
For some model variables and additionally derived parameters some statistics on daily, monthly or yearly basis are available.
Please contact sga"at"dkrz.de for data request details. See http://sga.wdc-climate.de for more details on CLM simulations in the context of the BMBF funding priority "klimazwei", some useful information on handling climate model data and the data access regulations.
The output format is netCDF.
Experiment with CLM 2.4.11 on NEC-SX6(hurrikan).
raw data: hpss:/dxul/ut/k/k204095/prism/experiments/B1_1
data years < 2060: /dxul/ut/k/k204095/prism/experiments/B1_1/outdata/clm/yearnnnn
data years > 2059: /dxul/prj/ir0264/arch/CLM/prism/experiments/B1_1/outdata/clm/yearnnnn

Due to technical reasons in data stream 2 (D2) the last record of every year was released with the time step(00.00 Hour, 01.January) of the following year
in the netCDF header.
1) Quality documentation see
'README, Plots and Reports for CLM regional climate model runs' in CERA2
http://cera-www.dkrz.de/WDCC/ui/Entry.jsp?acronym=CLM_PLOTS_2008 and 'CLM Technical Report'
http://www.mad.zmaw.de/fileadmin/extern/documents/reports/MaD_TechRep3_CLM.pdf Chapter 4 and 6.
2)Control of timeseries:
-creation of minimum, maximum, mean, average timeseries of every record
-control of timeseries with statistical analysis.
-control metadata and data of start and stop date (March 2009)
-control metadata of continuous time (March 2009)

as consistent as the model is (CLM Version 2.4.11)

CLM data stream 3 (_D3) contains a SUBSET of the output variables of CLM data stream 2 (_D2) and some additional derived parameters.

Europe; Latitude: 34.809 to 80.764 Longitude: -31.29 to 66.427

Spatial Coverage
Latitude: 34.6 to 69.8; Longitude: -10.6 to 36.8; Altitude: -3.82 m to 200.0 hPa

Temporal Coverage
1/1/2001 - 31/12/2100 (calendrical)

Data format(s)

Data size
5434782449 kBytes

Dr. Michael Lautenschlager
Deutsches Klimarechenzentrum (DM)

CLM regional climate model runs forced by the global IPCC scenario runs