MetClim

Wednesday, 15 February 2017

WRF with ERA-Interim on ORR2

Next let's try to run WRF with ERA-Interim data on ORR2.

1) Log on to ORR2

2) Create a directory for these forecasts:

mkdir TESTERA
cd TESTERA/
mkdir DATA
mkdir WPS
mkdir WRF

3) Get ECMWF ERA-Interim data:

3a) Static data doesn't change:

cd DATA/
cp /tmp/CONOR/DATA/ERA_STATIC.grib .

Surface and model-level data need to be downloaded for each forecast time.

WRF test case on ORR2

I've recompiled the WPS and WRF programs on ORR2, so you should run the test case again.

1) Log on to ORR2

2) Change into your TESTDIR WPS directory:

cd TESTWRF
cd WPS

3) Clean up your old data:

rm geogrid/*
rm metgrid/*
rm *

4) Run geogrid:

cp /tmp/CONOR/WPS/namelist.wps .
cp /tmp/CONOR/WPS/geogrid.exe .
cp /tmp/CONOR/WPS/geogrid/GEOGRID.TBL geogrid/
./geogrid.exe

When it's finished running, check what has happened:

ls -rthl

You should see this file:

Giant Rhubarb

Giant Rhubarb (Gunnera tinctoria) was only found in a small number of places in Ireland before the 1980's. Since then, though, it has spread quite quickly. Is this due to some change in Ireland's climate?

Gunnera tinctoria is a large herbaceous plant that forms dense colonies that shade out and suppress native vegetation. This species is a vigorous seeder, and birds facilitate its spread. Its ability to reproduce rhizomatically is yet another reason for its invasive nature. Intense effort is required to control this species (Global Invasive Species database).

Climate Connection?

What's the best way to investigate the link between Gunnera distribution and GSL/SGS/EGS?
Associate Gunnera locations with GSL grid. Plot $\Delta$GSL Versus Gunnera density?
What other climate variables should I look at? Precip? GDD? Soil T?