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/***********************************************/
/**
* @file iers2OceanPoleTide.cpp
*
* @brief Read Ocean pole tide model.
*
* @author Torsten Mayer-Guerr
* @date 2007-04-08
*
*/
/***********************************************/
// Latex documentation
#define DOCSTRING docstring
static const char *docstring = R"(
Read ocean pole tide model according to IERS conventions
and convert into \file{oceanPoleTide file}{oceanPoleTide}.
)";
/***********************************************/
#include "programs/program.h"
#include "inputOutput/file.h"
#include "files/fileOceanPoleTide.h"
#include "files/fileMatrix.h"
/***** CLASS ***********************************/
/** @brief Read ocean pole tide model.
* @ingroup programsConversionGroup */
class Iers2OceanPoleTide
{
public:
void run(Config &config, Parallel::CommunicatorPtr comm);
};
GROOPS_REGISTER_PROGRAM(Iers2OceanPoleTide, SINGLEPROCESS, "Read ocean pole tide model", Conversion)
/***********************************************/
void Iers2OceanPoleTide::run(Config &config, Parallel::CommunicatorPtr /*comm*/)
{
try
{
FileName outputName, inputName, loveNumberName;
Double GM, R, Omega;
Double rho, G, g;
UInt maxDegree;
readConfig(config, "outputfileOceanPole", outputName, Config::MUSTSET, "", "");
readConfig(config, "inputfile", inputName, Config::MUSTSET, "", "");
readConfig(config, "inputfileLoadingLoveNumber", loveNumberName, Config::MUSTSET, "{groopsDataDir}/loading/loadLoveNumbers_Gegout97.txt", "");
readConfig(config, "maxDegree", maxDegree, Config::MUSTSET, "", "");
readConfig(config, "GM", GM, Config::DEFAULT, STRING_DEFAULT_GM, "Geocentric gravitational constant");
readConfig(config, "R", R, Config::DEFAULT, STRING_DEFAULT_R, "Reference radius");
readConfig(config, "Omega", Omega, Config::DEFAULT, "7.292115e-05", "[rad/s] earth rotation");
readConfig(config, "rho", rho, Config::DEFAULT, "1025", "[kg/m**3] density of sea water");
readConfig(config, "G", G, Config::DEFAULT, "6.673e-11", "[m**3/(kg*s**2)] gravitational constant");
readConfig(config, "g", g, Config::DEFAULT, "9.7803278", "[m/s**2] gravity");
if(isCreateSchema(config)) return;
// Loading Love Numbers
// --------------------
Vector kn;
readFileMatrix(loveNumberName, kn);
// read potential coefficients
// ---------------------------
logStatus<<"read file <"<<inputName<<">"<<Log::endl;
Matrix cnmReal(maxDegree+1, Matrix::TRIANGULAR, Matrix::LOWER);
Matrix snmReal(maxDegree+1, Matrix::TRIANGULAR, Matrix::LOWER);
Matrix cnmImag(maxDegree+1, Matrix::TRIANGULAR, Matrix::LOWER);
Matrix snmImag(maxDegree+1, Matrix::TRIANGULAR, Matrix::LOWER);
{
InFile file(inputName);
std::string line;
std::getline(file, line); // read header
while(file.good())
{
std::getline(file, line);
if(line.empty())
continue;
std::stringstream ss(line);
ss.exceptions(std::ios::badbit | std::ios::failbit);
UInt n,m;
ss>>n>>m;
if(n<=maxDegree)
ss>>cnmReal(n,m)>>snmReal(n,m)>>cnmImag(n,m)>>snmImag(n,m);
}
}
// apply factors
// -------------
for(UInt n=0; n<=maxDegree; n++)
{
const Double f = pow(Omega,2)*pow(R,4)*4*PI*G*rho/GM/g * (1.+kn(n))/(2.*n+1.);
cnmReal.row(n) *= f;
snmReal.row(n) *= f;
cnmImag.row(n) *= f;
snmImag.row(n) *= f;
}
// write result
// ------------
logStatus<<"write ocean pole tide <"<<outputName<<">"<<Log::endl;
writeFileOceanPoleTide(outputName, SphericalHarmonics(GM, R, cnmReal, snmReal), SphericalHarmonics(GM, R, cnmImag, snmImag));
}
catch(std::exception &e)
{
GROOPS_RETHROW(e)
}
}
/***********************************************/
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