gfsDownload

Tools for downloading gfs meteo parameters modelling estimation on an area and on a specific time. GFS is a product of NCEP,NOAA and provide a full range of product which are describe in http://www.nco.ncep.noaa.gov/pmb/products/gfs/

Installation

mkdir PATH/TO/INSTALL
cd PATH/TO/INSTALL/gfsDownload
git clone git+git://github.com/yoannMoreau/gfsDownload.git
sudo apt-get install grib-api sudo apt-get install libopenjpeg sudo apt-get install pyproj python python/GFSDownload.py -help

( or you cas Use pip to install gfsDownload )

Overview: What can gfsDownload do?

gfsDownload has a main function, allow download of parameters on a area in an automatic way

Four paramaters are mandatory:

--Code of Parameters
A list of code which define parameters desired. Code reference can be found on :
For analyse
For forecast
CODE PARAMETERS Exemple :
total precipitation : APCP [m of water]
temperature : TMP [K]
pressure : PRES [Pa]
dewpoint : DPT [K]
eastward wind component UGRD [m s-1]
northward wind component VGRD [m s-1]

--Interval needed :
init date ' AND end date ' these parameters should be in a 14 days range from maximum date today

--Area needed
shapefile (srs is not important because it will be reprojected in WGS84) OR --Extend in WGS84

EXAMPLES :
--temperature on a shapefile during the first to the second of january
python GFSDownload.py -c TMP -i 2014-01-01 -e 2014-01-02 -s PATH_TO_SHAPE'
--pressure and dewPoint on a area during the first month of 2015 on a specific extend
python eraInterimDownload.py -c PRES,DPT -i 2015-01-01 -e 2015-02-01 -E xmin,ymax,xmax,ymin'


Five paramaters are optional:

--Step (default 0)'
The step of modeling. The step of itarate data over the days choosen ! default is 0,6,12,18. A list is possible for that parameter

python GFSDownload.py -c TMP -i 2013-11-08 -e 2013-12-09 -E xmin,ymax,xmax,ymin -p 0,6'

--Grid (default 0)'

The spacing of final raster. grid possible : 0.25/0.5/1/2.5 default is 0.25

python GFSDownload.py -c TMP -i 2015-04-19 -e 2015-04-19 -E xmin,ymax,xmax,ymin -g 0.5'

--Outfile (default /home/user/eraInterim)'

python GFSDownload.py -c PRES -i 2011-10-01 -e 2011-10-02 -E xmin,ymax,xmax,ymin -o PATH/TO/FILE' All downloaded raster are tif with a VAR_LEVEL_DateInit_DateEnd.tif name

--proxy (default False)

Sometimes a proxy definition is needed for downloading from external network. When this option is activated, a proxy user/key/site could be defined to overpass it

Important Notes

All downloaded and processed images are stored by default in your home directory in GFS forlder: ~/GFS

To Do List

Improve console output
Maintain with bug error