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hydrosetgeoparams.c
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hydrosetgeoparams.c
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/*-------------------------------------------------------------------------------------------
* hydrosetgeoparams.c
*
* Author: Albert Kettner, April 2006
*
* The subroutine sets the constant parameters of Qsbar based on the geographic position of
* the river mouth and average basin temperature, according to a paper of Syvitski, J.P.M.,
* Peckham, S.D., Hilberman, R.D. and Mulder, T., 2003. Predicting the terrestrial flux of
* sediment to the global ocean: A planetary perspective. Marine Geology 162, 5-24.
*
* Qsbar = alpha3 * pow(A,alpha4) * pow(H,alpha5) * exp(k * Tbar) //(ART)
* Alpha3, alpha4 and alpha5 and k are set here.
* Tbar = Tmean - ((lapserate[ep] * maxalt)/3.0);
* Tmean = (Tstart[ep] + (Tstart[ep] + (Tchange[ep]*nyears[ep])))/2;
*
*--------------------------------------------------------------------
*|Global Sector | alpha3 | alpha4 | alpha5 | k |
*| | | | | |
*|Polar (T<0 deg.C) | 2e-5 | 0.50 | 1.50 | 0.1 |
*|Temperate N (Lat>30N, T>0deg.C)| 6.1e-5 | 0.55 | 1.12 | 0.07 |
*|Tropics N (Lat 0 to 30N) | 0.31 | 0.40 | 0.66 | -0.1 |
*|Tropics S (Lat 0 to 30S) | 0.57 | 0.50 | 0.37 | -0.1 |
*|Temperate S (Lat>30S, T>0deg.C)| 1.3e-3 | 0.43 | 0.96 | 0.0 |
*--------------------------------------------------------------------
*
* Or:
* Qsbar = alpha6 * pow(Q,alpha7) * pow(H,alpha8) * exp(k*Tbar) //(QRT)
* Alpha6, alpha7, alpha8 and k are set here.
*
*--------------------------------------------------------------------
*|Global Sector | alpha6 | alpha7 | alpha8 | k |
*| | | | | |
*|Polar (T<0 deg.C) | 1.3e-4 | 0.55 | 1.50 | 0.1 |
*|Temperate N (Lat>30N, T>0deg.C)| 1.1e-3 | 0.53 | 1.10 | 0.06 |
*|Tropics N (Lat 0 to 30N) | 2.0 | 0.45 | 0.57 | -0.09 |
*|Tropics S (Lat 0 to 30S) | 162 | 0.65 |-0.05 | -0.16 |
*|Temperate S (Lat>30S, T>0deg.C)| 1.1e-3 | 0.53 | 1.10 | 0.06 |
*--------------------------------------------------------------------
* NOTE THAT TEMPERATE S GOT THE SAME VALUES AS THE TEMPERATE N. THIS BECAUSE
* NO VALUES WHERE IN THE PAPER FOR TEMPERATE S. FOR NOW, THE VALUES FOR TEMPERATE
* N ARE USED.
*
* Or:
* (See: Syvitski, J.P.M. and Milliman, J.D., submitted 2006. Geology, Geography and Hyumans
* battle for Dominance over the delivery of fluvial sediment to the coastal ocean. Journal of
* Geology ..., ..-..), for the BART or QBRT equations below.
* Qsbar = alpha9 * I * L * Hr *(1-TE) * Eh * pow(A,alpha10) * H1 * Tf //BART
*
* No Global sectors, so 1 equation for the world, alpha's are set here.
*-----------------------------
*| alpha9 | alpha10 | alpha11|
*| | | |
*| 0.02 | 0.31 | 0.50 |
*-----------------------------
*
*
*
* Variable Def.Location Type Units Usage
* -------- ------------ ---- ----- -----
* changeyear HydroSetGeoParams.c double years The year in which the Temp switches
* err various int - error flag, halts program
* i various int - counter
* Tbar HydroSetGeoParams.c double deg.C Mean temp. for the whole basin
* Tbarend HydroSetGeoParams.c double deg.C Temp at the last year of the run corrected for the whole basin
* Tbarstart HydroSetGeoParams.c double deg.C Temp at the first year of the run
* Tdummy HydroSetGeoParams.c double deg.C Total temp used for real data
* Tend HydroSetGeoParams.c double deg.C Temp at the last year of the run
* Tmean HydroSetGeoParams.c double deg.C Mean temp. not corrected for the whole basin yet.
*
*-------------------------------------------------------------------------------------------*/
#include "hydroparams.h"
#include "hydroclimate.h"
#include "hydroreadclimate.h"
#include "hydroinout.h"
/*------------------------------
* Start of HydroSetGeoParams
*------------------------------*/
int
hydrosetgeoparams (gw_rainfall_etc * gw_rain)
{
int err, i, kk;
double Tend, Tmean, Tbar, Tdummy;
/*----------------------------------------------------------------
* Set all the constants of the Qsbar
* (Qsbar = alpha3 * pow(A,alpha4) * pow(H,alpha5) * exp(k * Tbar)
*----------------------------------------------------------------*/
err = 0;
Tbar = 0.0;
if (raindatafile == 1)
{
Tdummy = 0.0;
for (i = 0; i < nyears[ep]; i++)
Tdummy += gw_rain->Tperyear[i];
Tmean = Tdummy / nyears[ep];
}
else
{
Tend = Tstart[ep] + (Tchange[ep] * nyears[ep]);
Tmean = (Tstart[ep] + Tend) / 2;
}
for (kk = 0; kk < nhypts[ep]; kk++)
{
if (kk == 0)
Tbar +=
(Tmean -
(((hypselev[ep][kk] -
hypselev[ep][0])) * lapserate[ep])) * (hypsarea[ep][kk] /
totalarea[ep]);
else
Tbar +=
(Tmean -
(((hypselev[ep][kk] -
hypselev[ep][0])) * lapserate[ep])) * ((hypsarea[ep][kk] -
hypsarea[ep][kk -
1]) /
totalarea[ep]);
}
if (lat > 30 && Tbar > 0)
{ /* Temperate North */
alpha3 = 0.000061;
alpha4 = 0.55;
alpha5 = 1.12;
k1 = 0.07;
}
if ((lat > 0 || lat == 0) && lat < 30 && Tbar > 0)
{ /* Tropics North */
alpha3 = 0.31;
alpha4 = 0.40;
alpha5 = 0.66;
k1 = -0.1;
}
if ((lat >= -30) && lat < 0 && Tbar > 0)
{ /* Tropics South */
alpha3 = 0.57;
alpha4 = 0.50;
alpha5 = 0.37;
k1 = -0.1;
}
if (lat < -30 && Tbar > 0)
{ /* Temperate South */
alpha3 = 0.0013;
alpha4 = 0.43;
alpha5 = 0.96;
k1 = 0.0;
}
if (Tbar <= 0.0)
{ /* Polar; South or North */
alpha3 = 0.00002;
alpha4 = 0.50;
alpha5 = 1.50;
k1 = 0.1;
}
if (lat > 30 && Tbar > 0)
{ /* Temperate North */
alpha6 = 0.0011;
alpha7 = 0.53;
alpha8 = 1.1;
k2 = 0.06;
}
if ((lat >= 0.0) && lat < 30 && Tbar > 0)
{ /* Tropics North */
alpha6 = 2.0;
alpha7 = 0.45;
alpha8 = 0.57;
k2 = -0.09;
}
if ((lat >= -30) && lat < 0 && Tbar > 0)
{ /* Tropics South */
alpha6 = 162;
alpha7 = 0.65;
alpha8 = -0.05;
k2 = -0.16;
}
if (lat < -30 && Tbar > 0)
{ /* Temperate South */
alpha6 = 0.0011;
alpha7 = 0.53;
alpha8 = 1.1;
k2 = 0.06;
}
if (Tbar <= 0.0)
{ /* Polar; South or North */
alpha6 = 0.00013;
alpha7 = 0.55;
alpha8 = 1.50;
k2 = 0.1;
}
if (lat > 30 && Tbar < 0.0)
{ /* Temperate North exception */
alpha6 = 0.0011;
alpha7 = 0.53;
alpha8 = 1.1;
k2 = 0.06;
}
alpha9 = 0.02;
alpha10 = 0.31;
alpha11 = 0.50;
return (err);
} /* end of HydroSetGeoParams.c */