Overview

Watch out, this version does bring some changes to the configuration keys!

Details

Bugs

• Packaging / compiling
  • packaging: the pugixml files were not installed, so it was not possible to compile Alpine3D anymore
  • better search priorities when cmake searches for snowpack or meteoio
  • niviz is not bundled anymore, nor Inishell (more work is needed to bundle the new Inishell)
  • for some versions of some compilers, an include was missing...
  • better handling of RPATH so snowpack can more often find its libraries by itself
• Others
  • depending on the user's system configuration, the output files were either UTF8 or something else. They are now consistently UTF-8 (on Windows, there are still cases when this could fail)
  • wrong roughness length was used for snow free pixels when canopy module was OFF
  • in the Main, now once the potential exceptions are caught, an EXIT_FAILURE error code is returned instead of "throw()". This prevents having the exceptions printing their message twice and makes it much easier to integrate into Inishell
  • the -v command line option does not take any arguments!
  • fixed an inconvenience: when "stability" throws an arithmetic exception, it can not be caught by C++ (since it is a CPU exception). This means that if this happens in Alpine3D, instead of assigning a max_stability value to the pixel and moving on, the simulation stops. This happened in getYoungModule because of a negative density. So now the density is checked before computing anything else and if negative, a c++ exception is thrown (which will be caught by alpine3d).

New features

• allow drift index calculation if more than 1 exposition is calculated
• a technical snow module has been implemented (grooming and snow production)
• Integration into other models
  • ADJUST_HEIGHT_OF_WIND_VALUE and ADJUST_HEIGHT_OF_METEO_VALUES are now checked at each calls so different pixels in Alpine3D can have different values
  • output logs are now flushed at each line so when Snowpack is wrapped into another application (such as Inishell) the run progression is shown "live".
  • the output logs do not show the Julian date anymore
  • now ACDD metadata is supported in SMetIO for timeseries
• Changes to configuration keys
  • new key SLOPE_FROM_SNO that allows to choose if the metadata should come from the sno file or from the meteorological data (this is important for virtual stations)
  • the ISWR_IS_NET key has been removed, now if a field named "NET_SW" is found, it will be properly handled
  • making the ROUGHNESS_LENGTH key optional (ie it now has a default value) since most users keep the default value anyway
  • the BACKUP_DAYS_BETWEEN key has been renamed into SNOW_DAYS_BETWEEN for consistency with the other parameters and Alpine3D
  • the soil evaporation model is configured with an new SNOWPACKADVANCED::SOIL_EVAP_MODEL key (as in dev branch). In addition, the soil thermal conductivity computation from fitted data can now be bypassed with another new SNOWPACKADVANCED::SOIL_THERMAL_CONDUCTIVITY key. Default behavior is unchanged.

Documentation

• various small improvements
• the Swiss code is now included
• added some documentation about using spatial resampling in Snowpack
• the example ini files were using the deprecated BUFF_CHNUK SIZE key
• changed some default options: now most example don't write the snow files