CropSyst User Manual - sipeaa

atmospheric change simulation scenario.ProjectsThese are special simulation generation and analysis methods.Additional simulation specific parameter filesFor some special simulation situations, it may be convenient to reset some select state variables.To accomoplish this, a recalibration file can be created. This file should be placed in the samedirectory as the simulation file and must have the same filename with the extension .RCL.The file may consist of records of the following format:year doy keyword amount1 ... amountn Year and DOY is the date (Day Of Year) the recalibrationis to occur. This may often be the date of a field data measurement. The year may be 0 indicatingthat the recalibration values are to be used every year on the specified day. amount1...amountn arethe values to be used in the first n soil layers.The following variables can be recalibrated:WT - Water table depth (m)The recalibration file with water table entries will be used by the finite difference infiltrationmodel to implement water table boundary conditions. In the case of WT, only one value isprovided for the depth.The water table is not used by the Cascade infiltration model and will be ignored when thesimulation is run with the Cascade infiltration mode .WC - Water content (m³/m³)Occasionally, for certain abnormal soil conditions, CropSyst may not be able to simulatecertain physical phenomena such as water tables that rise into the root zone, or very deapmud cracks causing deeper evaporation, etc.. This water content can be reset to measuredvalues. This could also be used to specify periods of inundation or the effects of unnaturalphenomena outside the scope of CropSyst.SNOW - Snow depth (m )add the new SNOW depth in snow pack depth CropSyst current converts this to meltedliquid water equivelent by dividing this depth by 5.You need not include dates for 0 depths, 0 depth will be used for dates with no specifieddepth.