Finding Site Parameters

[moorer98]

Hello all,

I have another good novice question, are there "default" site parameters one can use for setting up a run?  I was able to get some info from the NOAA gage data but it is unclear to me how the other site parameters are derived.  Short of finding the info in a lit review are there numbers that work out as a "good guess" for the parameter entry?

Thank you,

Rich

[Jonathan S. Clough]

I recommend looking through the reports found here for some examples of how we found parameters for these variables when applying the model:  http://www.warrenpinnacle.com/prof/SLAMM/SLAMM_Projects.html

Other than that, here's a very quick breakdown:

NWI Photo Date (YYYY)  -- Year of wetland imagery
DEM Date (YYYY)  -- Year of elevation data
Direction Offshore [n,s,e,w]  -- Professional judgment, has limited impact but helps a cell understand its context by evaluating how near water is in the offshore direction
Historic Trend (mm/yr)  -- NOAA long term SLR gauges
MTL-NAVD88 (m)  -- NOAA Gages or NOAA VDATUM
GT Great Diurnal Tide Range (m)  -- NOAA Gauges or other data set
Salt Elev. (m above MTL)  -- one-in-thirty day inundation from observed gauge data from NOAA gages, or try 1.3 to 1.5 multiplied by half of the GT as a rough estimate.
Marsh Erosion (horz. m /yr) -- shoreline change data, other literature source, or default
Swamp Erosion (horz. m /yr) -- shoreline change data, other literature source, or default
T.Flat Erosion (horz. m /yr) -- shoreline change data, other literature source, or default
Reg.-Flood Marsh Accr (mm/yr)  -- literature source, local or regional long-term accretion study
Irreg.-Flood Marsh Accr (mm/yr)  -- literature source, local or regional long-term accretion study
Tidal-Fresh Marsh Accr (mm/yr)  -- literature source, local or regional long-term accretion study
Inland-Fresh Marsh Accr (mm/yr) -- literature source, local or regional long-term accretion study  or default
Mangrove Accr (mm/yr)  -- literature source, local or regional long-term accretion study  or default
Tidal Swamp Accr (mm/yr) -- often default or literature source, local or regional long-term accretion study
Swamp Accretion (mm/yr)  -- often default or literature source, local or regional long-term accretion study
Beach Sed. Rate (mm/yr)  -- data tends to be sparse
Freq. Overwash (years)  -- can look at historical hurricane records and estimate frequency of category 3 or beyond storm.   Or set to zero for overwash to be off (recommended for cell sizes below 30 m)
Use Elev Pre-processor [True,False]  -- False if using LiDAR or high vertical resolution elevation data (recommended)