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#Glacier mass balance model of Marzeion et al. 2012 adapted for OGGR

#Versions

• v1.0 (master_fortran): benchmark version replicating Marzeion 2012 results

##Current (main) branches:

###master:

• using scons to build fortran

  • to install: e.g. apt-get install scons
  • build main : scons
  • build precompute: scons -Q mmbm_precomp.exe
  • clean main: scons -c
  • clean precompute: scons -c -Q mmbm_precomp.exe

• developed and tested with gfortran

• uses netcdf

• main loop is parallelized with openMP. To use this:

  • set environment variable: set -x OMP_NUM_THREADS 4
  • set it to your number of CPU-cores as a first estimate
  • enable the two -fopenmp flags in SConstruct
  • BEWARE: if you use parallel version and add new variables, make sure you set the context i.e. private or shared (see beginning of loop)

• all python packages are installable via pip or easy_install

• directory structure:

  Directories should be symlinked if not wanted in local dir; they are NOT included in the repo

  • data directory
    • {METTYPE}_anom_interp_{YEAR}.nc interpolated anomalies
    • {METTYPE}_t2m_tp_CLIM_{YEARSTART}_{YEAREND}.nc climatologies
    • cross_validation.nc guess what
  • precomputed directory
    • {REGION}/{METTYPE}_precomp_{REGION}_{YEAR}.nc
  • results directory

• NETCDF Conventions:

  • ALL NETCDF files should contain variables in SI units!
  • all lat lons are named latitude, longitude
  • lons range from -180 to + 180
  • time is expressed as decimal years
  • time variable is called month in case of climatology, else time
  • temperature is t2m
  • precip is tp