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DIANA

Diana is the core visualisation tool from MET Norway (Norwegian Meteorological Institute) and is distributed under the GPL license. See gpl.txt for details concerning the GPL license.

Diana is a graphical viewer and editor developed for use with meteorological and oceanographic data. It uses Qt for the graphics the user interface.

Diana shows fields, observations and satellite and radar images on a map. 2D-trajectories can be computed from wind and ocean current fields. The tool also displays vertical profiles (soundings), vertical crossections, and wave spectrum data in separate windows, all from preprocessed data. Preprocessing software is however not a part of Diana. The editor tools consist of a field editor and a drawing tool for fronts, symbols and area types.

Diana supports multiple languages via the Qt Linguist system. Additional languages can be added by preparing new share/diana/lang/diana_XX.ts files (using the Qt Linguist program) and updating src/CMakeLists.txt.

In addition to the interactive tool, there is also a command line version of Diana for batch plotting (bdiana).

Installation

Diana 3.44 and above is built with cmake. Example build steps are:

SRC=/path/to/diana/source
BLD=/path/to/diana/build
INS=/path/to/diana/install

cd "$BLD"
cmake \
    -DCMAKE_INSTALL_PREFIX="$INS" \
    -DENABLE_DIANA_OMP=1 \
    -DENABLE_PERL=1 \
    -DENABLE_OBS_BUFR=1 \
    -DENABLE_GEOTIFF=1 \
    "$SRC"

cmake --build . --target all

export CTEST_OUTPUT_ON_FAILURE=1
cmake --build . --target test

cmake --build . --target install

You might want to pass other options to cmake depending on the features you want to enable in Diana. Please consult the CMakeLists.txt files.

To read maps from ESRI shape files, libshp and GDAL (gdalsrsinfo) are required.

For video export, avconv is required to merge single frames into a video.

If you use an IDE like QtCreator, you might want to change the generator for cmake with the -G option (see cmake --help), e.g. -G "CodeBlocks - Unix Makefiles" or -G "CodeBlocks - Ninja".

Please also see the Diana wiki.

Running

Running bdiana

In order to run bdiana on a server without display, you need to tell Qt not to try to open a display. This might be achieved by issuing the commands:

unset DISPLAY
export QT_QPA_FONTDIR=/usr/share/fonts/truetype
export QT_QPA_PLATFORM=offscreen

before starting bdiana.

File formats for diana

The current version supports following file formats:

  • Fields are read via fimex
    • MetnoFieldFile (proprietary met.no)
    • NetCDF
    • GRIB
  • Observations
    • MetnoObs (proprietary met.no)
    • BUFR (using libemos or ecCodes)
    • ASCII
  • Image (satellite, radar)
    • mitiff (proprietary met.no)
    • geotiff
    • HDF5
  • Prognostic sounding
    • NetCDF
  • vertical crossections
    • NetCDF (met.no structure)
  • Wave spectrum
    • NetCDF (met.no structure)
  • Maps

Resource files

Some files included with Diana are obtained from third parties and are made available under distinct licenses.

The weather symbol files in share/diana/images/symbols were obtained from OGCMetOceanDWG and are licensed under the Creative Commons Attribution 3.0 Unported (CC BY 3.0) license. See the http://creativecommons.org/licenses/by/3.0/ page for the license terms.

Contact

Norwegian Meteorological Institute (MET Norway)
Box 43 Blindern
0313 OSLO
NORWAY

Email: diana@met.no