static void _MDDischMean (int itemID) {
int nSteps;
float accumDisch;
float dischMean;
accumDisch = MFVarGetFloat (_MDInAccumDischargeID, itemID, 0.0);
nSteps = MFVarGetInt (_MDInAvgNStepsID, itemID, 0);
dischMean = MFVarGetFloat (_MDOutDischMeanID, itemID, 0.0);
dischMean = (float) (((double) dischMean * (double) nSteps + accumDisch) / ((double) (nSteps + 1)));
MFVarSetFloat (_MDOutDischMeanID, itemID, dischMean);
}
static void _MDRunoffMean (int itemID) {
int nSteps;
float runoff;
float runoffMean;
runoff = MFVarGetFloat (_MDInRunoffID, itemID, 0.0);
nSteps = MFVarGetInt (_MDInAvgNStepsID, itemID, 0);
runoffMean = MFVarGetFloat (_MDOutRunoffMeanID, itemID, 0.0);
runoffMean = (float) (((double) runoffMean * (double) nSteps + runoff) / ((double) (nSteps + 1)));
MFVarSetFloat (_MDOutRunoffMeanID, itemID, runoffMean);
}
static void _MDCParamZ0g (int itemID) {
// Input
int cover;
// Local
static float lookup [] = { 0.02, 0.02, 0.02, 0.01, 0.01, 0.005, 0.001, 0.001 };
cover = MFVarGetInt (_MDInCoverID, itemID, 7); // defaulting missing value to water.
if ((cover < 0) || (cover >= (int) (sizeof (lookup) / sizeof (lookup [0])))) {
CMmsgPrint (CMmsgWarning,"Warning: Invalid cover [%d] in: %s:%d\n",cover,__FILE__,__LINE__);
return;
}
MFVarSetFloat (_MDOutCParamZ0gID,itemID, lookup [cover]);
}
static void _MDCParamAlbedo (int itemID) {
// Input
int cover;
float snowPack;
// Local
static float albedo [] = { 0.14, 0.18, 0.18, 0.20, 0.20, 0.22, 0.26, 0.10 };
static float albedoSnow [] = { 0.14, 0.23, 0.35, 0.50, 0.50, 0.50, 0.50, 0.50 };
cover = MFVarGetInt (_MDInCoverID, itemID, 7); // defaulting missing value to water.
if ((cover < 0) || (cover >= (int) (sizeof (albedo) / sizeof (albedo [0])))) {
CMmsgPrint (CMmsgWarning,"Warning: Invalid cover [%d] in: %s:%d\n",cover,__FILE__,__LINE__);
return;
}
snowPack = MFVarGetFloat (_MDInSnowPackID, itemID, 0.0);
MFVarSetFloat (_MDOutCParamAlbedoID,itemID,snowPack > 0.0 ? albedoSnow[cover] : albedo[cover]);
}
static void _MDRiverLight (int itemID) {
float discharge;
float channelDepth;
float channelWidth;
float channelWidthMean;
float width_canopy; // mean width of overhanging trees from each bank
float canopy_proportion = 0.7; // proportion of total bank length (stream length * 2) with canopy
float LAI = 0.9; // proportion of light shaded out
float DOC;
int koppen;
//light parameters
float solarRad; //MJ/m2/
float Ecan;
float rad2par = 0.5; // proprotion of total radiation as PAR
float reflectance = 0.9; //proportion of PAR transmitted across air-water interface
float shading;
float turbidity = 10; //NTU
float Kturb = 0.177; // from Julian et al. 2008
float Kdoc = 0.05; //assumption: assume every mg/l of DOC leads to 1% attenuation (m-1)
float Kd; // m-1
float par2bottom;
float par2reach;
discharge = MFVarGetFloat ( _MDInDischargeID, itemID, 0.0);
solarRad = MFVarGetFloat ( _MDInSolarRadID, itemID, 0.0); //MJ/m2/d - CHECK UNITS - already accounts for clouds
channelDepth = MFVarGetFloat ( _MDInRiverDepthID, itemID, 0.0);
channelWidth = MFVarGetFloat ( _MDInRiverWidthID, itemID, 0.0);
channelWidthMean = MFVarGetFloat (_MDInRiverbedWidthMeanID, itemID, 0.0); //assume mean width = bankfull width
DOC = MFVarGetFloat (_MDInConcDOCID, itemID, 0.0) * 1000; //converts kg/m3 to mg/l
koppen = MFVarGetInt (_MDInKoppenID, itemID, 0.0); // % TODO I think this is not % but category that should be read as integer FBM
// KoppenID's : 1=Taiga, 2=semi-arid,3=tundra,4=temperate,5=tropics
// Canopy width (m), assumption: Tundra=0,Taiga=2,Temperate=5,Semi-arid=0, WetTropics=10, DryTropics=0
switch (koppen) { // TODO Wil originally read this as float and tested for nan which should never happen particularly, when it is read as integer.
case 1: width_canopy = 2; break;
case 2: width_canopy = 0; break;
case 3: width_canopy = 0; break;
case 4: width_canopy = 5; break;
case 5: width_canopy = 10; break;
}
Ecan = solarRad * rad2par;
if (!isnan(discharge) && (channelWidthMean > 0) && (channelWidth > 0)){
if ((channelWidthMean / 2) < width_canopy){
shading = canopy_proportion * MDMinimum(1, LAI);
}
else {
//proportion with canopy * proportion of half width not shaded
// does not include effect of variable width within channel; need to scale down based on actual water surface area
shading = canopy_proportion * (width_canopy / (channelWidthMean / 2)) * MDMinimum(1,LAI);
}
if (discharge > 0){
// turbidity = turbidity_const * pow(Q, turbidity_slope);
Kd = Kturb * turbidity + Kdoc * DOC; //Figure 5; Julian et al. 2008
par2bottom = Ecan * (1 - shading) * reflectance * pow(2.71828, -1 * Kd * channelDepth);
if (isnan(par2bottom)){
printf("Light: Q %f solarRad %f DOC %f Ecan %f shading %f reflectance %f Kd %f channelWidthMean %f channelDepth %f par2bottom %f \n",
discharge, solarRad, DOC, Ecan, shading, reflectance, Kd, channelWidthMean, channelDepth, par2bottom);
}
}
else {
par2bottom = Ecan * shading;
}
par2reach = par2bottom * channelWidth * MFModelGetLength(itemID); //MJ/reach
MFVarSetFloat(_MDPAR2BottomID, itemID, par2bottom);
MFVarSetFloat(_MDPAR2ReachID, itemID, par2reach);
}
else{
MFVarSetFloat(_MDPAR2BottomID, itemID, 0.0);
MFVarSetFloat(_MDPAR2ReachID, itemID, 0.0);
}
}
static void _MDQBARTpreprocess (int itemID) {
int TimeStep,p,i,d,j;
float Qday, Qbar,Qacc, Qbar_km3y,Qbar_m3s;
float Qmax = 0;
float Tday,Tbar,Tacc,A,T_time,T_old;
float TupSlop,PixSize_km2;
int n, nA;
float mu, muA, M2, M2A, M3, M3A, del;
float logQmax;
float dummy;
/*static int Max_itemID = 0;*/
//static int year_count=1;
/*static float *PixelmaxQ;*/
/*static float **dailyQ; */
/*if (itemID > Max_itemID) {*/
/*Max_itemID=itemID+1;*/
/*printf("Max_itemID:%d\n",Max_itemID);*/
/*PixelmaxQ = (float*)malloc(Max_itemID*sizeof(float));*/
/*dailyQ = (float**) malloc(Max_itemID*sizeof(float*));*/
/*for (i = 1; i < Max_itemID+1; i++)*/
/*dailyQ[i] = (float*) malloc(366*sizeof(float));*/
/*for (i = 1; i < 366; i++)*/
/*for (j = 1; j < Max_itemID; j++)*/
/*dailyQ[j][i] = 0.0; */
/*} */
//printf("sizeof(Max_itemID):%d\n",(sizeof(PixelmaxQ)/sizeof(float)));
/*static int pix=1;*/
/*static int day=1;*/
/*FILE * textfile;*/
//printf ("itemID:%d\n ", itemID);
//printf("Max_itemID:%d\n",Max_itemID);
if (MFDateGetDayOfYear() == 1) {
MFVarSetFloat(_MDOutDischMaxID, itemID, 0.0);
}
Qday = MFVarGetFloat (_MDInDischargeID , itemID, 0.0); // in m3/s
Qmax = MFVarGetFloat(_MDOutDischMaxID, itemID, 0.0);
if (Qday > Qmax) {
MFVarSetFloat(_MDOutDischMaxID, itemID, Qday);
} else {
MFVarSetFloat(_MDOutDischMaxID, itemID, Qmax);
}
if (MFDateGetDayOfYear() == 365) { //MFDateGetYearLength()) {
Qmax = MFVarGetFloat(_MDOutDischMaxID, itemID, 0.0);
logQmax = 0;
if (Qmax > 0)
logQmax = log10(Qmax);
// online (onepass) variance calculation, continues in MDBankfullQcalc.c (T.Terriberry)
nA = MFVarGetInt(_MDOutYearCountID, itemID, 0);
n = nA + 1;
muA = MFVarGetFloat(_MDOutMeanLogQMaxID, itemID, 0.0);
M2A = MFVarGetFloat(_MDOutLogQMaxM2ID, itemID, 0.0);
M3A = MFVarGetFloat(_MDOutLogQMaxM3ID, itemID, 0.0);
del = logQmax - muA;
mu = muA + del / n;
M2 = M2A + (del * del * nA / n);
M3 = M3A + (del * del * del * nA * (nA - 1) / (n * n)) + (3 * -M2A * del / n);
MFVarSetInt(_MDOutYearCountID, itemID, n);
MFVarSetFloat(_MDOutMeanLogQMaxID, itemID, mu);
MFVarSetFloat(_MDOutLogQMaxM2ID, itemID, M2);
MFVarSetFloat(_MDOutLogQMaxM3ID, itemID, M3);
// call this just to make bankfull calcs and save vals
dummy = MFVarGetFloat(_MDInBankfullQ5ID, itemID, 0.0);
}
// don't need to set missing vals to anything, dsAggregate annual in
// postproc should just skip them.
/*else {*/
/*MFVarSetInt(_MDOutYearsCountID, itemID, MFVarGetInt(_MDOutYearsCountID, itemID, 0));*/
/*MFVarSetFloat(_MDOutDischMaxMeanID, itemID, MFVarGetFloat(_MDOutDischMaxMeanID, itemID, 0.0));*/
/*}*/
//printf ("pix:%d\n ", pix);
/*dailyQ[pix][day]=Qday;*/
//if (pix==1) printf ("pix=1. Qday=:%f\n ", Qday);
/*pix++;*/
/*if (itemID==1){ //last pixelID*/
/*//printf ("day:%d\n ", day);*/
/*[>if (day==365){<]*/
/*if (MFDateGetDayOfYear() == MFDateGetYearLength()) {*/
/*printf("year count\n ");*/
/*//year_count++;*/
/*textfile = fopen("year_max_logQ.txt","a");*/
/*printf ("Writing to Scripts/year_max_logQ.txt\n");*/
/*for (p=1;p<Max_itemID;p++){*/
/*PixelmaxQ[p] = dailyQ[p][1];*/
/*//printf ("PixelmaxQ[p]:%f\n ", PixelmaxQ[p]);*/
/*for (d=2; d<366; d++){*/
/*if (PixelmaxQ[p] < dailyQ[p][d]) PixelmaxQ[p] = dailyQ[p][d];*/
/*}*/
/*if (PixelmaxQ[p]>0) PixelmaxQ[p]=log10(PixelmaxQ[p]);*/
/*fprintf (textfile,"%f ", PixelmaxQ[p]);*/
/*}*/
/*fprintf (textfile,"\n");*/
/*fclose (textfile);*/
/*Max_itemID = 0;*/
/*day = 0;*/
/*}*/
/*day++;*/
/*pix=1;*/
/*} */
//Geting the values of these parameters
Qbar = MFVarGetFloat (_MDInDischMeanID , itemID, 0.0); // in m3/s
Tday = MFVarGetFloat (_MDInAirTempID , itemID, 0.0); // in C
// A = MFVarGetFloat (_MDInContributingAreaID, itemID, 0.0); //in km2
A = MFVarGetFloat (_MDInContributingAreaAccID, itemID, 0.0) + (MFModelGetArea (itemID)/(pow(1000,2)));// convert from m2 to km2 //calculating the contributing area
MFVarSetFloat (_MDInContributingAreaAccID, itemID, A);
PixSize_km2 =(MFModelGetArea(itemID)/pow(1000,2));
// printf("PixSize_km2: %f\n",PixSize_km2);
// printf("A: %f\n",A);
//Calculate Relief
// LocalElev = MFVarGetFloat (_MDInElevationID , itemID, 0.0)/1000;//convert to km
// printf("LocalElev: %f\n",LocalElev);
// MaxElev = MFVarGetFloat (_MDOutElevationMaxID, itemID, 0.0);
// if (A == PixSize_km2) MaxElev=LocalElev;
// MFVarSetFloat (_MDOutElevationMaxID, itemID, -MaxElev);
// MFVarSetFloat (_MDOutElevationMaxID, itemID, LocalElev);
// printf("MaxElev: %f\n",MaxElev);
// R = MaxElev-LocalElev;
// printf("R: %f\n",R);
MFVarSetInt (_MDOutBQART_AID, itemID, A);
//MFVarSetInt (_MDOutBQART_RID, itemID, R);
//Accumulate temperature
TupSlop = MFVarGetFloat (_MDInAirTempAcc_spaceID, itemID, 0.0);
T_old = MFVarGetFloat (_MDInAirTempAcc_timeID, itemID, 0.0) ;
T_time = T_old+ Tday;
Tacc = TupSlop + (T_time * PixSize_km2);
MFVarSetFloat (_MDInAirTempAcc_spaceID, itemID, Tacc);
MFVarSetFloat (_MDInAirTempAcc_timeID, itemID, T_time);
//Accumulate discharge
Qacc = (MFVarGetFloat (_MDInDischargeAccID, itemID, 0.0)+ Qday);// in m3/s
MFVarSetFloat (_MDInDischargeAccID, itemID, Qacc);
// Accumulate time steps
TimeStep = (MFVarGetInt (_MDInTimeStepsID, itemID, 0.0)+1);
MFVarSetInt (_MDInTimeStepsID, itemID, TimeStep);
//Calculate moving avarege temperature (Tbar) and discharge
Tbar = Tacc/TimeStep/A;
Qbar_m3s = Qacc/TimeStep; //in m3/s
MFVarSetFloat (_MDOutBQART_Qbar_m3sID, itemID, Qbar_m3s);
if (Qbar_m3s > 0){ //convert to km3/y
Qbar_km3y = (Qbar_m3s/(pow(1000,3)))*(365*24*60*60);
}else
Qbar_km3y = 0;
// exporting outputs flux to files
MFVarSetFloat (_MDOutBQART_TID, itemID, Tbar);
MFVarSetFloat (_MDOutBQART_Qbar_km3yID, itemID, Qbar_km3y);
}