add script to retrieve MG IN/CCN data

Author: grantfirl

contrib/get_mg_inccn_data.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+set -ex
+
+# Directory where this script is located
+if [[ $(uname -s) == Darwin ]]; then
+  MYDIR=$(cd "$(dirname "$(greadlink -f -n "${BASH_SOURCE[0]}" )" )" && pwd -P)
+else
+  MYDIR=$(cd "$(dirname "$(readlink -f -n "${BASH_SOURCE[0]}" )" )" && pwd -P)
+fi
+BASEDIR=$MYDIR/..
+
+# Change to directory containing the physics input data, download and extract archive
+cd $BASEDIR/scm/data/physics_input_data/
+wget https://github.com/NCAR/gmtb-scm/releases/download/v5.0.0-alpha/MG_INCCN_data.tar
+tar -xvf MG_INCCN_data.tar
+rm -f MG_INCCN_data.tar