.. _global_mn: ## MN ## Nuttli magnitude for Canada and other Cratonic regions Description =========== MN is the Nuttli magnitude :cite:p:`nuttli-1973` for Canada and other Cratonic regions. It is implemented by the *nuttli* plugin according to the Geological Survey of Canada (NRCan). For measuring AMN amplitudes and for computing MN magnitudes |scname| provides regionalization. Amplitude --------- Amplitude unit in |scname|: **meter/second** (m/s) Settings ======== Add the *nuttli* plugin to the list of loaded plugins e.g. in the global module configuration: .. code-block:: sh plugins = ${plugins},nuttli Adjust MN-specific global bindings parameters in the amplitude section and set the region-specific calibration parameters in the global module configuration. scamp ----- Add the Nuttli amplitude type, **AMN**, to the range of magnitudes for which the amplitudes are to be calculated by :ref:`scamp`, e.g.: .. code-block:: sh amplitudes = AMN Adjust MN-specific global bindings parameters in the amplitude section and set the region-specific calibration parameters in the global module configuration (amplitude section). .. note:: Provide *AMN* for computing Nuttli-type amplitudes. scmag ----- Add the Nuttli magnitude type, **MN**, to the range of magnitudes to be calculated by :ref:`scmag`, e.g.: .. code-block:: sh magnitudes = MN Adjust MN-specific global bindings parameters in the magnitude section and define the region polygons in the global module configuration (magnitude section). .. _global_mn_configuration: Module Configuration ==================== .. note:: **amplitudes.MN.\*** *Amplitude control parameters for MN (Nuttli magnitude).* .. confval:: amplitudes.MN.velocityModel Default: ``iasp91`` Type: *string* The travel time table set compiled for LocSAT. The tables are located in \"share\/locsat\/tables\/[vmodel].\*\". .. note:: **magnitudes.MN.\*** *Regionalization of MN (Nuttli magnitude).* .. confval:: magnitudes.MN.region Default: ``@DATADIR@/magnitudes/MN/MN.bna`` Type: *path* The path to the BNA file which defines the valid region for the MN magnitude. Note that the entire path from source to receiver must lie entirely within the polygon\(s\). .. confval:: magnitudes.MN.offsetMw Type: *double* The offset applied to the MN network magnitude to estimate Mw\(MN\). If not configured then no Mw estimation will be applied.