Biome-BGC MCE 1.4.1

Biome-BGC is a process-based biogeochemical model that can be used to simulate carbon, nitrogen and water fluxes of different terrestrial ecosystems. The model has more than 40 various parameters. The only way to estimate or set these parameters is "calibration" (data-model-harmonization), which demands a hugh amount of computational capacity. Monte Carlo Experiment (MCE) randomizes selected parameters of the model in a high number of replication, which provides pre-process results for Sensitivity Assessment (SA), Data Model Harmonization (DMH), etc ... The Biome-BGC MCE workflow starts a job on the ECOS server of MTA ÖK, which interacts with the SZTAKI Desktop Grid to distribute and execute the simulation task packages in many parallel instances. Biome-BGC model simulations require several specific „parameter” datasets: spinup and normal initialization files (INI); daily meteorology dataset (METDATA); ecophysiological constants file (EPC); annual atmospheric CO2 concentration file (CO2 - optional); annual nitrogen deposition file (NDEP - optional); site parameters; output control of Biome-BGC variables; and Monte Carlo Experiment initialization file. The Biome-BGC Projects database was developed to easy prepare, manage and share all of the above mentioned datasets (files) and provide interaction with Taverna workflows. Learn more about BBGCDB at http://ecos.okologia.mta.hu/bbgcdb/.

url="http://ecos.okologia.mta.hu/bbgcdb/node/"+prID;

out1="The Biome-BGC Monte Carlo Experiment project (ID: "+prID+") has been created and submitted successfully. It runs off-line on the ECOS server of MTA ÖK and interacts with SZTAKI Desktop Grid, which can takes long time to run (i.e. several hours or days according to the number of MCE repetition requested). Please check the status and completeness of the MCE project regularly at the BBGCDB Project URL.";

prID=id1.trim();