Download

You are recommended to register as an EMEP User before you start downloading data from the following links:

The Release Calendar tracks historical and future release dates for new software versions and bug fixes.



Registration as an EMEP User

It is recommended to register as an EMEP User before you start downloading any input data, model code or model results. Please read through the "Registration Agreement Terms" thoroughly before you agree to the terms presented there.

Your registration gives you access to the EMEP forum where questions and answers on the model code and its uses are to be exchanged. Support to the user community of the Unified EMEP model will develop here with your contribution.

The information given about your e-mail adress in this registration is not to be distributed, but it is stored in a database only available to the administrator of this EMEP Forum. The database can be useful for the EMEP/MSC-W group to have the list of contacts if, for instance, special information about the EMEP model is to be distributed to the Users.



Input data

A complete set of input files is provided in the EMEP Open Source webpage to allow model runs for the year 2005.

IMPORTANT: The input data available in this website should be appropriately acknowledged when used for model runs. If nothing else is specified according to references further in this chapter, please acknowledge EMEP/MSC-W in any use of these data.

The standard input files for the Unified EMEP model are provided in two different formats, netCDF or ASCII. The 3 hourly meteorological input data and the initial and boundary conditions data are in netCDF format, and all other input data are in ASCII. We presently follow as much as possible the netCDF CF1.0 conventions for both input and output data (except the Boundary_and_Initial_Conditions file which is still in GDV convention). The table below gives an overview over the input files needed for a model run. The first part of the table presents grid dependent netCDF and ASCII files and the last part presents grid independent data. This separation of the files is done for easier overview of input if changes are needed to be done to model resolution and area (grid dependent data). In the downloadable tar file, grid dependent and grid independent input files are distributed in two respective separate subdirectories. The grid dependent data presently provided is at 50x50 km2 resolution covering the EMEP area with 170x133 gridpoints and references can be found in Chapter 1 of the Unified EMEP model User Guide.

Please note that some of the ASCII input files contain a header that explains the content of the file. It is desirable that all ASCII input files have such headers, but so far only 6 have this type of header. Work is in progress at EMEP/MSC-W to recode the model version to allow for a full set of input data with header, and will be reported in future releases of the Unified EMEP model code. For the files without a header, the user is recommended to check the actual Fortran module reading the input file for further understanding the formats and usage if description given below is insufficient. More details about the different inputfiles can be found by checking the links for each input data type in the following table.

Data

Name(in F90 code)

Format

Meteorology

meteoYYYYMMDD.nc

NetCDF CF1.0

Boundary and Initial Conditions

Boundary_and_Initial_Conditions.nc

NetCDF GDV

Landuse

 Inputs.Landuse ASCII*

BVOC emissions

Inputs.BVOC

ASCII

Roughness lengths

rough.170

ASCII

Sites locations for surface output

sites.dat

ASCII*

Sondes locations for vertical output

sondes.dat

ASCII*

Snow cover

snowcMM.dat.170

ASCII

Natural SO2

natso2MM.dat.170

ASCII

Volcanoes

Volcanoes.dat

ASCII

Emissions

gridPOLL

ASCII

Time factor for monthly emissions

MonthlyFac.POLL

ASCII

Time factor for daily emissions

DailyFac.POLL

ASCII

Landuse definitions

 Inputs_LandDefs.csv ASCII*

Stomatal conductance

 Inputs_DO3SE.csv ASCII*

Lightning emissions

lt21-nox.datMM

ASCII

Military aircraft emissions

amilt42-nox.dat

ASCII

Commercial aircraft emissions

aSEASON42-nox.dat

ASCII

VOC speciation

vocsplit.defaults.BASE_MAR2004
vocsplit.special.BASE_MAR2004

ASCII
ASCII

NOx speciation

noxsplit.default.2000
noxsplit.special.BASE_MAR2004

ASCII
ASCII

Emission factors for scenario runs

femis.dat

ASCII

Photo-dissociation rates

jclear.SEASON
jcl1.SEASON
jcl3.SEASON

ASCII
ASCII
ASCII

Please register as an EMEP User before you start downloading Meteorology:

  Download Meteo_input_files

'meteoYYYMM.tar.bz2', compressed files: 900 MB approx. per file

All Other Input:
(Boundary_and_Initial_Conditions, Emissions, Landuse, Volcanoes, Splits, Timefactors, etc.)

  Download Other_input_files

'other_input_files.tar.bz2', compressed file: 74 MB



Model Code

The Unified EMEP model code version rv3 are archived into a tar file. The tar file is called 'EMEP_Unified_model.tar' and is downloadable from the link found below.

All model files needed for a model run will be found under the directory Unify/Unimod.rv3/ where the model source code, makefiles, the runscript and a copy of the license file are stored, once this tar file is untarred. An overview of these files is given in this table:

Type Filename
modules files *.f90
include files *.inc
makefiles Makefile_*
run script modrun.pl
a copy of the licence gpl.txt

The model source code is written in Fortran 90/95 programming language. There are three makefiles provided. 'Makefile' is for a SGI Origin 3800 computer, 'Makefile_snow' is for an Itanium2 cluster and the 'Makefile_njord' is for an IBM power5+ cluster. The run script, 'modrun.pl', is written in Perl and is initially meant for an Itanium2 cluster. A detailed description about on how to handle this script is given in section 'Submitting a Run'.

Please register as an EMEP User before you start downloading the model code:

  Download the Unified EMEP model source code

'Unified_EMEP.tar', tar file: 1430 KB



Model Results

A reference run for the year 2005 has been done and the results of the this run is made available for comparison for the new users to the Unified EMEP model. The main output files are in netCDF (CF1.0) format and some additional output files are in ASCII format. An overview of the contents of the downloadable .tar file is given below. More details about the output files and how to specify the output data which is written into these files can be found in the Unified EMEP model User Guide.

Output data files Short description Format
Base_day.nc Gridded daily values of a selection of compounds. netCDF
Base_hour.nc Gridded hourly values of a selection of compounds. netCDF
Base_inst.nc Gridded instantaneous values of a selection of compounds. netCDF
Base_fullrun.nc Gridded yearly values of a selection of compounds. netCDF
sites.MMYY Surface daily values of a selection of stations and compounds per month. ASCII
Base.sites All data from "sites.MMYY" files in one file. ASCII
sondes.MMYY Vertical daily values of a selection of stations and compounds per month. ASCII
Base.sondes All data from "sondes.MMYY" files in one file. ASCII
Additional files Short description Format
Base_RunLog Total emissions of different air pollutants per country ASCII
eulmod.res Mass budget of different compounds ASCII
INPUT.PARA List of input parameters ASCII
Remove.sh Removes the links to the input data at the end of the run ASCII
Timing.out Timing log file ASCII

Please register as an EMEP User before downloading model results:

  Download Results for the year 2005

'Results_2005.tar.bz2', compressed file: 1145530 KB