WikiPrint - from Polar Technologies

A python function has been created in order to access the SPECS-EUPORIAS Data Portal in a user-friendly way, allowing the retrieval of dimensional slices of selected simulation members from the ECMWF's SYSTEM4 model. This function (?load_system4.py) automatically cares about the proper location of the right indices for data sub-setting across the different variable dimensions, given a few simple arguments for subset definition. In addition, instead of retrieving a NetCDF file that needs to be opened and read, the requested data is directly loaded into the current python working session, according to a particular structure described below, prior to data analysis and/or representation.

The request is simply formulated via the load_system4 function:

>>> load_system4(dataset, var, season, leadMonth, lonLim, latLim, year, members=[])

The arguments of the function are described below:

Short NameLong nameUnitsInstantaneousAggregated
tasmax Maximum temperature at 2 metres degCNoYes
tasmin Minimum temperature at 2 metres degCNoYes
tas Mean temperature at 2 metres degCYesYes
pr Total precipitation accumulatedmmNoYes
mslp Mean sea level pressure PaYesYes

The output returned by the function consists of a list with the following elements providing the necessary information for data representation and analysis: