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/***********************************************/
/**
* @file hw2TideGeneratingPotential.cpp
*
* @brief Read tide generating potential from Hartmann and Wenzel 1995.
* http://bowie.gsfc.nasa.gov/hw95/
*
* @author Torsten Mayer-Guerr
* @date 2011-09-17
*
*/
/***********************************************/
// Latex documentation
#define DOCSTRING docstring
static const char *docstring = R"(
Write \file{tide generating potential}{tideGeneratingPotential}
from Hartmann and Wenzel 1995 file, \url{https://doi.org/10.1029/95GL03324}.
)";
/***********************************************/
#include "programs/program.h"
#include "base/string.h"
#include "base/doodson.h"
#include "base/tideGeneratingPotential.h"
#include "inputOutput/file.h"
#include "files/fileTideGeneratingPotential.h"
/***** CLASS ***********************************/
/** @brief Read tide generating potential from Hartmann and Wenzel 1995.
* @ingroup programsConversionGroup */
class Hw2TideGeneratingPotential
{
public:
void run(Config &config, Parallel::CommunicatorPtr comm);
};
GROOPS_REGISTER_PROGRAM(Hw2TideGeneratingPotential, SINGLEPROCESS, "Read tide generating potential from Hartmann and Wenzel 1995", Conversion)
/***********************************************/
void Hw2TideGeneratingPotential::run(Config &config, Parallel::CommunicatorPtr /*comm*/)
{
try
{
FileName outName, inName;
UInt headerLines;
Time time0;
readConfig(config, "outputfileTideGeneratingPotential", outName, Config::MUSTSET, "", "");
readConfig(config, "inputfile", inName, Config::MUSTSET, "hw95.dat", "");
readConfig(config, "headerLines", headerLines, Config::DEFAULT, "205", "skip number of header lines");
readConfig(config, "referenceTime", time0, Config::DEFAULT, STRING_J2000, "reference time");
if(isCreateSchema(config)) return;
// =====================================================
TideGeneratingPotential tgp;
tgp.reserve(13000);
UInt countPermanent = 0;
UInt countNDegree = 0;
UInt countNDoodson = 0;
UInt countNSunMoon = 0;
Double maxAmp1 = 0.;
Double maxAmp2 = 0.;
Double maxAmp3 = 0.;
Double T = timeGPS2JC(time0); // julian centuries
// =====================================================
InFile file(inName);
// skip header
std::string line;
for(UInt i=0; i<headerLines; i++)
getline(file, line);
while(file.good())
{
std::string line;
getline(file, line);
if(line.empty())
continue;
// line number
UInt number = String::toInt(line.substr(0, 6));
if(number == 999999)
break;
std::string generatingBody = line.substr(7, 2);
const UInt n = String::toInt(line.substr(9, 2));
// doodson multipliers
std::vector<Int> kn(11);
for(UInt i=0; i<kn.size(); i++)
kn.at(i) = String::toInt(line.substr(11+3*i, 3));
// frequency
const Double frequency = DEG2RAD/3600*String::toDouble(line.substr(44, 12)); // degree/hour -> rad/s
// amplitudes
Double c0 = 1e-10 * String::toDouble(line.substr(56, 12));
Double s0 = 1e-10 * String::toDouble(line.substr(68, 12));
c0 += 1e-10 * T * String::toDouble(line.substr(80, 10));
s0 += 1e-10 * T * String::toDouble(line.substr(90, 10));
// name
const std::string name = String::trim(line.substr(101,4));
// find permanent tides
// --------------------
{
Int sum = 0;
for(UInt i=0; i<kn.size(); i++)
sum += static_cast<Int>(std::fabs(kn.at(i)));
if(sum==0)
{
countPermanent++;
continue;
}
}
// use only degree n=2
// -------------------
if(n != 2)
{
countNDegree++;
maxAmp1 = std::max(maxAmp1, std::sqrt(c0*c0+s0*s0));
continue;
}
// use only tides from sun & moon
// ------------------------------
{
Int sum = 0;
for(UInt i=6; i<kn.size(); i++)
sum += static_cast<Int>(std::fabs(kn.at(i)));
if(sum || ((generatingBody != "SU") && (generatingBody != "MO")))
{
countNSunMoon++;
maxAmp2 = std::max(maxAmp2, std::sqrt(c0*c0+s0*s0));
continue;
}
}
// skip all frequencies which cannot be doodson coded
// --------------------------------------------------
{
Bool flag = FALSE;
for(UInt i=0; i<6; i++)
flag |= (kn.at(i)+5 < -13) || (kn.at(i)+5 > 23); //--> corresponding multipliers ranging from 0 to f
if(flag)
{
countNDoodson++;
maxAmp3 = std::max(maxAmp3, std::sqrt(c0*c0+s0*s0));
continue;
}
}
// test frequency
if(std::fabs(Doodson(kn).frequency()-frequency*86400) > 1e-8)
logWarning<<Doodson(kn).name()<<" frequency difference: "<<Doodson(kn).frequency()<<" - "<<frequency*86400<<" = "<<Doodson(kn).frequency()-frequency*86400<<Log::endl;
tgp.push_back(TideGeneratingConstituent(Doodson(kn), c0, s0));
} // while(file.good())
// find duplicates
// ---------------
UInt countDuplicate = 0;
for(UInt i=1; i<tgp.size(); i++)
{
if(tgp.at(i-1)==tgp.at(i))
{
tgp.at(i-1).c += tgp.at(i).c;
tgp.at(i-1).s += tgp.at(i).s;
tgp.erase(tgp.begin()+i);
i--;
countDuplicate++;
}
}
logInfo<<"constituents used: "<<tgp.size()<<Log::endl;
logInfo<<"constituents skipped:"<<Log::endl;
logInfo<<" permanent: "<<countPermanent<<Log::endl;
logInfo<<" not degree 2: "<<countNDegree<<Log::endl;
logInfo<<" not doodson codable: "<<countNDoodson<<Log::endl;
logInfo<<" not sun or moon: "<<countNSunMoon<<Log::endl;
logInfo<<" duplicates: "<<countDuplicate<<Log::endl;
logInfo<<"constituents total: "<<tgp.size()+countNDegree+countNDoodson+countNSunMoon+countPermanent+countDuplicate<<Log::endl;
logInfo<<" max. amplitude (degree>2): "<<maxAmp1<<" m**2/s**2"<<Log::endl;
logInfo<<" max. amplitude (not sun or moon): "<<maxAmp2<<" m**2/s**2"<<Log::endl;
logInfo<<" max. amplitude (not doodson codable): "<<maxAmp3<<" m**2/s**2"<<Log::endl;
logStatus<<"save TGP <"<<outName<<">"<<Log::endl;
writeFileTideGeneratingPotential(outName, tgp);
}
catch(std::exception &e)
{
GROOPS_RETHROW(e)
}
}
/***********************************************/
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