anchor.diff:  rainfall_yearly_total,21,RAIY,4,RAIY,44,,"Rainfall, yearly total",mm,single,,WEATHER,WEATHER_STATION,STATION_METADATA,,5041,,.,.,0,,,1,,0,,
   solar_rad_yearly_avg,20,SRAY,4,SRAY,45,,"Solar radiation, yearly average",MJ/m2.d,single,,WEATHER,WEATHER_STATION,STATION_METADATA,,5041,,.,.,0,,,1,,0,,
   angstrom_coef_a_year,20,ANGA,4,ANGA,46,,"Angstrom A coefficient, yearly",unitless,single,,WEATHER,WEATHER_STATION,STATION_METADATA,,5041,,.,.,,,,1,,0,,
  -flag_for_summary_data,21,FLAGA,5,FLAGA,50,,Flag to identify summary data with specific problems or significance,code,text,70,WEATHER,WEATHER_STATION,STATION_METADATA,,5041,,,,,,,1,-1,0,,
   angstrom_coef_b_year,20,ANGB,4,ANGB,47,,"Angstrom B coefficient, yearly",unitless,single,,WEATHER,WEATHER_STATION,STATION_METADATA,,5041,,.,.,,,,1,,0,,
    psychrometric_constant ,24,PSYCON,6,PSYCON,48,, Psychrometric constant ,kPa/°C,single,,WEATHER,WEATHER_STATION,STATION_METADATA,,5041,"2013-02-06, JWW",,,,,,1,,,,
  +flag_for_summary_data,21,FLAGA,5,FLAGA,50,,Flag to identify summary data with specific problems or significance,code,text,70,WEATHER,WEATHER_STATION,STATION_METADATA,,5041,,,,,,,1,-1,0,,
   psychrometer_ventilation,,PSYVNT,,PSYVNT,,,Psychrometer ventilation (ventilated or natural air flow),code,text,70,WEATHER,WEATHER_STATION,STATION_METADATA,,5041,"2013-02-08, JWW",,,,,,1,-1,0,,
   weather_id,10,WID,,WID,0,1,unique id to link to weather data,number,single,,WEATHER,WEATHER_STATION,WEATHER_GENER_PARMS,,5046,,,,,,,1,-2,0,,
  +solar_rad_all_day_mon_av,24,SAMN,4,SAMN,1,,"Solar radiation, all days, monthly avera",MJ/m2.d,single,,WEATHER,WEATHER_STATION,WEATHER_GENER_PARMS,,5046,,.,.,,,,1,-1,0,,
   weather_station_id,18,WST_ID,,WST_ID,1,1,Weather station identifier to link to site information,number,single,,WEATHER,WEATHER_STATION,WEATHER_GENER_PARMS,,5046,,,,,,,1,-2,0,,
  -solar_rad_all_day_mon_av,24,SAMN,4,SAMN,1,,"Solar radiation, all days, monthly avera",MJ/m2.d,single,,WEATHER,WEATHER_STATION,WEATHER_GENER_PARMS,,5046,,.,.,,,,1,-1,0,,
   solar_rad_dry_d_mon_sd,22,SDSD,4,SDSD,2,,"Solar radiation, dry days, monthly st de",MJ/m2.d,single,,WEATHER,WEATHER_STATION,WEATHER_GENER_PARMS,,5046,,.,.,,,,1,-1,0,,
   solar_rad_dry_day_mon_av,24,SDMN,4,SDMN,3,,"Solar radiation, dry days, monthly avera",MJ/m2.d,single,,WEATHER,WEATHER_STATION,WEATHER_GENER_PARMS,,5046,,.,.,,,,1,-1,0,,
   solar_rad_wet_d_mon_avg,23,SWMN,4,SWMN,4,,"Solar radiation, wet days, monthly avera",MJ/m2.d,single,,WEATHER,WEATHER_STATION,WEATHER_GENER_PARMS,,5046,,.,.,,,,1,-1,0,,
  
positive.code: residue_nature_prev_crop,24,ICPCR,5,ICPCR,5,,"Residue, crop code for previous crop",code,text,3,EXPERIMENT,MANAGEMENT,INITIAL_CONDITIONS,,2051,,.,PCR,,,,1,,1,1,
  residue_incorpor_depth,22,ICRDP,5,ICRDP,6,,Residue incorporation depth,cm,single,,EXPERIMENT,MANAGEMENT,INITIAL_CONDITIONS,,2051,"DSSAT specific, doesn't make sense",.,RDEP,0,,,1,,1,1,
  residue_incorporated,20,ICRIP,5,ICRIP,7,,Residue incorporation percentage,%,single,,EXPERIMENT,MANAGEMENT,INITIAL_CONDITIONS,,2051,"DSSAT specific, doesn't make sense",.,RINP,0,100,,1,,1,1,
  residue_above_ground_wt,23,ICRAG,5,ICRAG,8,,"Residue above-ground weight, dry weight basis",kg/ha,single,,EXPERIMENT,MANAGEMENT,INITIAL_CONDITIONS,,2051,,.,RAMT TFOM,0,,,1,,1,1,
  residue_moisture_init,21,ICRM,4,ICRM,8,,Moisture in initial above-ground residue ,%,single,,EXPERIMENT,MANAGEMENT,INITIAL_CONDITIONS,,2051,,.,.,0,,,1,,1,1,
  residue_N_conc,14,ICRN,4,ICRN,9,,"Residue, above-ground, nitrogen concentration",%,single,,EXPERIMENT,MANAGEMENT,INITIAL_CONDITIONS,,2051,,.,RESN,0,,,1,,1,1,
  residue_P_conc,14,ICRP,4,ICRP,10,,"Residue, above-ground, phosphorus concentration",%,single,,EXPERIMENT,MANAGEMENT,INITIAL_CONDITIONS,,2051,,.,RESP,0,,,1,-1,0,,
  residue_K_conc,14,ICRK,4,ICRK,11,,"Residue, above-ground, potassium concentration",%,single,,EXPERIMENT,MANAGEMENT,INITIAL_CONDITIONS,,2051,,.,RESK,0,,,1,-1,0,,
  
negative.code: harvest_amount,,HAMT,,HAMT,9,,"Harvest, total amount removed as mass",kg/ha,single,,EXPERIMENT,MANAGEMENT,HARVESTS,HARVEST_EVENTS,2142,"2013-03-06, JWW",,,,,,1,,0,,
  harv_operat_main_product,24,HAP%,4,HAPPC,10,,"Harvest operations, percent economic product harvested",%,single,,EXPERIMENT,MANAGEMENT,HARVESTS,HARVEST_EVENTS,2142,,.,HPC,0,100,,1,,0,,
  harv_operation_byproduct,24,HAB%,4,HABPC,11,,"Harvest operations, percent of by-product harvested",%,single,,EXPERIMENT,MANAGEMENT,HARVESTS,HARVEST_EVENTS,2142,,.,.,0,100,,1,,0,,
  harv_operat_size_categor,24,HASIZ,5,HASIZ,13,,Harvest operations size category,code,text,5,EXPERIMENT,MANAGEMENT,HARVESTS,HARVEST_EVENTS,2142,,.,HSIZ,,,,1,-1,0,,
  harvest_cut_height,,HAHT,,HAHT,14,,"Harvest, height of cut",cm,single,,EXPERIMENT,MANAGEMENT,HARVESTS,HARVEST_EVENTS,2142,"2013-03-06, JWW",,,,,,1,,0,,
  simulation_start_date,21,SDAT,4,SDAT,-99,,Simulation start date,date,single,,EXPERIMENT,MANAGEMENT,SIMULATION_CONTROLS,,2211,,Simulation date,.,1,"99,365",D,0,,0,,
  simulation_end_date,21,ENDAT,4,ENDAT,-98,,Simulation end date,date,single,,EXPERIMENT,MANAGEMENT,SIMULATION_CONTROLS,,2211,"2013-02-07, JWW",Simulation end,.,1,"99,365",D,0,,0,,
  id,,id,,id,0,1,id,,single,,EXPERIMENT,MANAGEMENT,SIMULATION_CONTROLS,,2211,,,,,,,0,-2,0,,
  simulation_id,,SM,,SM,1,,SM,,single,,EXPERIMENT,MANAGEMENT,SIMULATION_CONTROLS,,2211,,,,,,,0,-2,0,,
  simulation_name,15,SNAME,5,SNAME,2,,"Simulation scenario, name",text,text,31,EXPERIMENT,MANAGEMENT,SIMULATION_CONTROLS,,2211,,,,,,D,0,-2,0,,
  simulation_start_year,21,SC_YEAR,7,SC_YEAR,3,,Simulation start year,year,single,,EXPERIMENT,MANAGEMENT,SIMULATION_CONTROLS,,2211,,Simulation date,.,1,"99,365",D,0,,0,,
  simulation_start_day,20,SCDAY,5,SCDAY,4,,Simulation start day of year,doy,single,,EXPERIMENT,MANAGEMENT,SIMULATION_CONTROLS,,2211,,Simulation date,.,1,"99,365",D,0,-2,0,,
  soil_profile_methods,,METHODS,,METHODS,1,,Description of methods used to obtain profile data,text,memo,,SOILS,SOIL_METADATA,GENERAL,,4001,,,,,,,1,,0,,
  soil_notes,,SL_NOTES,,SL_NOTES,2,,Notes describing soil dataset,text,memo,,SOILS,SOIL_METADATA,GENERAL,,4001,,.,.,,,,1,,0,,
  distrib_restrictions,20,SL_DISTRIB,10,SL_DISTRIB,3,,Distribution limitations for the soils data set,text,memo,,SOILS,SOIL_METADATA,GENERAL,,4001,"2013-02-14, CHP",.,.,,,,1,-1,0,,
  