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#!/bin/bash
# http://opendata.dwd.de/weather/nwp/icon-d2/grib/00/t/icon-d2_germany_regular-lat-lon_pressure-level_2023080200_000_1000_t.grib2.bz2
# <BASE>/<RUN>/<PARAMETER>/icon-d2_regular-lat-lon_pressure-level_<INIT>_<OFFSET>_<LEVEL>_<PARAMETER>
OUTDIR=dwd_icon-d2
MODEL=icon-d2
MODEL_LONG=icon-d2_germany
BASE="http://opendata.dwd.de/weather/nwp"
RUN="00"
PARAMETERS=( "t" )
PRESSURE_LEVELS=( "1000" "975" "950" "850" "700" "600" "500" "400" "300" "250" "200" )
OFFSETS=( "000" )
DATE=$(date +%Y%m%d)
mkdir -p $OUTDIR
echo -n > "$OUTDIR/index.txt"
for PARAMETER in ${PARAMETERS[@]}; do
for OFFSET in ${OFFSETS[@]}; do
for LEVEL in ${PRESSURE_LEVELS[@]}; do
URL="$BASE/$MODEL/grib/$RUN/$PARAMETER/${MODEL_LONG}_regular-lat-lon_pressure-level_${DATE}${RUN}_${OFFSET}_${LEVEL}_${PARAMETER}.grib2.bz2"
BNAME=$(basename "$URL")
echo Getting "$URL"
echo "$BNAME" >> $OUTDIR/index.txt
wget -q --directory-prefix=$OUTDIR "$URL"
done
done
done
echo Done downloading. Decompressing...
for F in $OUTDIR/*.grib2.bz2; do
bzip2 -df "$F"
done
echo Done.
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