Add SRTM15_PLUS (#52)

input_data/SRTM15_PLUS/meta.yaml

+repo_name: SRTM15_PLUS
+
+people:  Willi Rath (<wrath@geomar.de>)
+
+http_path_remote: https://git.geomar.de/data/SRTM15_PLUS
+
+git_path_remote: git@git.geomar.de:data/SRTM15_PLUS
+
+repo_description: |
+    A new 15-arc second resolution global topography/bathymetry grid
+    (SRTM15_PLUS) developed from a wide variety of data sources.
+
+    <http://topex.ucsd.edu/WWW_html/srtm30_plus.html>
+
+prefixes: data doc
+
+data:
+
+    - url: "ftp://topex.ucsd.edu/pub/srtm15_plus/topo15_compressed.nc"
+      prefix: data
+      file_name: topo15.nc
+      method: !!python/name:data_repo_renderer.CurlSingleFile
+
+doc:
+
+    - url: "http://topex.ucsd.edu/WWW_html/srtm30_plus.html"
+      prefix: doc
+      file_name: topex.ucsd.edu_WWW_html_srtm30_plus.html
+      method: !!python/name:data_repo_renderer.CurlSingleFile
+
+    - url: "http://topex.ucsd.edu/sandwell/publications/124_MG_Becker.pdf"
+      prefix: doc
+      file_name: Becker_et_al_2009.pdf
+      method: !!python/name:data_repo_renderer.CurlSingleFile
+
+    - url: "ftp://topex.ucsd.edu/pub/srtm15_plus/README.V1.txt"
+      prefix: doc
+      file_name: README.V1.txt
+      method: !!python/name:data_repo_renderer.CurlSingleFile
+
+    - url: "ftp://topex.ucsd.edu/pub/srtm15_plus/README_PERMISSIONS.txt"
+      prefix: doc
+      file_name: README_PERMISSIONS.txt
+      method: !!python/name:data_repo_renderer.CurlSingleFile
+
+    - url: "ftp://topex.ucsd.edu/pub/srtm15_plus/REFERENCES_SRTM15_PLUS.txt"
+      prefix: doc
+      file_name: REFERENCES_SRTM15_PLUS.txt
+      method: !!python/name:data_repo_renderer.CurlSingleFile
+
+post_processing:
+
+    - util/convert_to_netCDF4_classic.sh

input_data/SRTM15_PLUS/util/convert_to_netCDF4_classic.sh

+#!/bin/bash
+
+# define and export convert function
+function convert_to_nc4c {
+    file_name=$1
+    echo "converting ${file_name}"
+    nccopy -7 -d 1 -s  \
+        ${file_name} ${file_name}_tmp_nc4
+    mv ${file_name}_tmp_nc4 ${file_name}
+}
+export -f convert_to_nc4c
+
+# bunzip and convert using 4 threads
+find data/ -type f -iname \*.nc -print0 | \
+    xargs -0 -n1 -P4 -I {} bash -c "convert_to_nc4c {}"