Physiographic invariant surface data ================================================ Physiographic invariant surface data are necessary if you want to prepare idealised and/or real case study above realistic surface using :ref:`prep_pgd` program. For that purpose, you need 4 files : topography, soil texture and land user, all of them with hdr and dir suffixes. The disk space required to store the files is about 3 Go. Download *********** You can download the files using direct download in following subsections or with following bash script : .. code-block:: bash #!/bin/bash export dir_pgd_files='http://mesonh.aero.obs-mip.fr/mesonh/dir_open/dir_PGDFILES' for file in LICENSE_ECOCLIMAP.txt LICENSE_soil_data.txt \ gtopo30.hdr gtopo30.dir \ SAND_HWSD_MOY.hdr SAND_HWSD_MOY.dir \ CLAY_HWSD_MOY.hdr CLAY_HWSD_MOY.dir \ ECOCLIMAP_v2.0.hdr ECOCLIMAP_v2.0.dir \ etopo2.nc do if [ ! -f ${file} ] then echo 'Download' ${file} wget -c -nd ${dir_pgd_files}/${file}.gz ; gunzip ${file}.gz fi done .. note:: * This script download gtopo30 for the topography, SANS_HWSD_MOY and CLAY_HWSD_MOY for soil texture and ECOCLIMAPO_v2.0 for land use. In following section, all the databases available on Meso-NH server are described. If you need other database available in http://mesonh.aero.obs-mip.fr/mesonh/dir_open/dir_PGDFILES, you have to adapt this bash script or download them directly via the link. * Files are compressed with gunzip, don't forget to uncompressed them before using it with Meso-NH. Topography *********** * GTOPO30, a global digital elevation model (DEM) with a horizontal grid spacing of 30 arc seconds (approximately 1 kilometer). * **Source :** https://lta.cr.usgs.gov/GTOPO30 * **Download :** * :download:`gtopo30.hdr.gz ` * :download:`gtopo30.dir.gz ` * SRTM NE at 250 m between 30°W-180°E and 0-60°N * A digital elevation model (DEM) with a horizontal grid spacing of approximately 250 meters (derived from srtm90 tiles, see https://bigdata.cgiar.org/srtm-90m-digital-elevation-database, only over the North East part of the world (latitude from 60N to 0N and longitude from 30W to 180E * **Download :** * :download:`srtm_ne_250m.hdr.gz ` * :download:`srtm_ne_250m.dir.gz ` * SRTM SE at 250 m between 30°W-180°E and 0-60°S * **Download :** * :download:`srtm_se_250m.hdr.gz ` * :download:`srtm_se_250m.dir.gz ` * SRTM at 30 m over France between 5°W-10°E and 40-55°N see domain * **Download :** * :download:`srtm_france_30m.hdr.gz ` * :download:`srtm_france_30m.dir.gz ` Soil texture ************* * HWSD at 1 km, v2 (global). In v2, maps with missing data (relative to the land/sea mask from ECOCLIMAP_v1) are corrected, setting the default value 0.33 for sand and clay in missing data points. * **Source :** http://www.iiasa.ac.at/Research/LUC/External-World-soil-database/HTML/ * **Download :** * :download:`CLAY_HWSD_MOY_v2.hdr.gz ` * :download:`CLAY_HWSD_MOY_v2.dir.gz ` * :download:`SAND_HWSD_MOY_v2.hdr.gz ` * :download:`SAND_HWSD_MOY_v2.dir.gz ` * :download:`LICENSE_soil_data.txt.gz `. Land use *********** * ECOCLIMAP v1.8, a 1 km global database for land use * **Download :** * :download:`ECOCLIMAP_I_GLOBAL_V1.8.hdr.gz ` * :download:`ECOCLIMAP_I_GLOBAL_V1.8.dir.gz ` * :download:`LAKE_DEPTH_ECO_I_V1.7.hdr.gz ` * :download:`LAKE_DEPTH_ECO_I_V1.7.dir.gz ` * ECOCLIMAP v2.6, a 1 km global database with improved land use data over Europe (11°W-62°E, 25°N-75°N) * **Download :** * :download:`ECOCLIMAP_II_EUROP_V2.6.hdr.gz ` * :download:`ECOCLIMAP_II_EUROP_V2.6.dir.gz ` * :download:`LAKE_DEPTH_ECO_II_V2.6.tgz ` Additional databases ********************** For more choices of topography, soil texture, land use, bathymetry and lakes cover databases, follow the SURFEX dedicated web page : http://www.umr-cnrm.fr/surfex/spip.php?rubrique14.