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Co-authored-by: Samuel Levis <slevis@ucar.edu>

Author: ekluzek

doc/source/tech_note/Ecosystem/CLM50_Tech_Note_Ecosystem.rst

@@ -292,7 +292,7 @@ The current state of the atmosphere (:numref:`Table Atmospheric input to land mo
 
 :sup:`3`\ There are 14 aerosol deposition rates required depending on species and affinity for bonding with water; 8 of these are dust deposition rates (dry and wet rates for 4 dust size bins, :math:`D_{dst,\, dry1},\, D_{dst,\, dry2},\, D_{dst,\, dry3},\, D_{dst,\, dry4}`, :math:`D_{dst,\, \, wet1},D_{dst,\, wet2},\, D_{dst,wet3},\, D_{dst,\, wet4}` ), 3 are black carbon deposition rates (dry and wet hydrophilic and dry hydrophobic rates, :math:`D_{bc,\, dryhphil},\, D_{bc,\, wethphil},\, D_{bc,\, dryhphob}` ), and 3 are organic carbon deposition rates (dry and wet hydrophilic and dry hydrophobic rates, :math:`D_{oc,\, dryhphil},\, D_{oc,\, wethphil},\, D_{oc,\, dryhphob}` ). These fluxes are computed interactively by the atmospheric model (when prognostic aerosol representation is active) or are prescribed from a time-varying (annual cycle or transient), globally-gridded deposition file defined in the namelist (see the CLM4.5 User's Guide). Aerosol deposition rates were calculated in a transient 1850-2009 CAM simulation (at a resolution of 1.9x2.5x26L) with interactive chemistry (troposphere and stratosphere) driven by CCSM3 20\ :sup:`th` century sea-surface temperatures and emissions (:ref:`Lamarque et al. 2010<Lamarqueetal2010>`) for short-lived gases and aerosols; observed concentrations were specified for methane, N\ :sub:`2`\ O, the ozone-depleting substances (CFCs),and CO\ :sub:`2`. The fluxes are used by the snow-related parameterizations (Chapters :numref:`rst_Surface Albedos` and :numref:`rst_Snow Hydrology`).
 
-:sup:`4`\ The nitrogen deposition rate is required by the biogeochemistry model when active and represents the total deposition of mineral nitrogen onto the land surface, combining deposition of NO\ :sub:`y` and NH\ :sub:`x`. The rate is supplied either as a time-varying spatially-varying monthly mean rate fixed for a particular year for control simulations or advancing yearly for transient simulation. This is for the case when CTSM reads it's own datasets, but when coupled to CAM it can also use the Nitrogen deposition calculated or read in by it. For the datasets that CTSM uses Nitrogen deposition rates were calculated from the same CAM chemistry simulation that generated the aerosol deposition rates.
+:sup:`4`\ The nitrogen deposition rate is required by the biogeochemistry model when active and represents the total deposition of mineral nitrogen onto the land surface, combining deposition of NO\ :sub:`y` and NH\ :sub:`x`. The rate is supplied either as a time-varying spatially-varying monthly mean rate fixed for a particular year for control simulations or advancing yearly for transient simulation. This is for the case when CTSM reads it's own datasets, but when coupled to CAM it can also use the Nitrogen deposition calculated or read in by CAM. For the datasets that CTSM uses, Nitrogen deposition rates were calculated from the same CAM chemistry simulation that generated the aerosol deposition rates.
 .. _rst_Surface Characterization, Vertical Discretization, and Model Input Requirements:
 
 :sup:`5`\ Climatological 3-hourly lightning frequency at :math:`\sim`\ 1.8° resolution is provided, which was calculated via bilinear interpolation from 1995-2011 NASA LIS/OTD grid product v2.2 (http://ghrc.msfc.nasa.gov) 2-hourly, 2.5° lightning frequency data. In future versions of the model, lightning data may be obtained directly from the atmosphere model.