GWGEN_F90: The FORTRAN code base for a global weather generator

Welcome! This repository contains the code base for the Global Weather Generator. This files can be used to run the weather generator. For the full documentation, including the parameterization script, please refer to the GWGEN repository and it's documentation.

Installation

To compile the software, you need a FORTRAN 95 compiler, e.g. via:

sudo apt-get install gfortran

on debian, or:

brew install gcc

on Mac OSX using homebrew.

To create the executable, just modify the Makefile with the correct fortran compiler and run:

make

This will create the weathergen executable in the same directory.

The weather generator requires a comma separated file with 11 columns, that are

station id (character string of 11 characters)

a unique identifier of the weather station

lon (float)

the longitude of the weather station (only necessary if the use_geohash namelist parameter in the main namelist of weathergen.nml is True (the default))

lat (float)

the latitude of the weather station (see lon)

year (int)

the year of the month

month (int)

the month

min. temperature (float)

the minimum temperature degrees Celsius

max. temperature (float)

the maximum temperature in degrees Celsius

cloud fraction (float)

the mean cloud fraction during the month between 0 and 1

wind speed (float)

the mean wind speed during the month in m/s

precipitation (float)

the total precipitation in the month in mm/day

wet (int)

the number of wet days in the month

and can be run via:

./weathergen monthly_input.csv daily_output.csv