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Commit 8d242fcd authored by Mathias Bavay's avatar Mathias Bavay
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The layers handling is not so clear... it seems that the first layer is most... 

The layers handling is not so clear... it seems that the first layer is most often a purely numeric layer and therefore must be skiped. Some fields may not have such a layer, this will have to be clarified.
parent 6756c001
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meteoio/plugins/ARPSIO.cc
View file @ 8d242fcd
......@@ -192,18 +192,18 @@ void ARPSIO::read2DGrid_internal(FILE* &fin, const std::string& filename, Grid2D
//tke: turbulent kinetic energy. (m/s)^2
//Radiation parameters
if (parameter==MeteoGrids::ISWR) readGridLayer(fin, filename, "radsw", 1, grid_out);
if (parameter==MeteoGrids::ISWR) readGridLayer(fin, filename, "radsw", 2, grid_out);
if (parameter==MeteoGrids::RSWR) {
Grid2DObject net;
readGridLayer(fin, filename, "radsw", 1, grid_out);
readGridLayer(fin, filename, "radswnet", 1, net);
readGridLayer(fin, filename, "radsw", 2, grid_out);
readGridLayer(fin, filename, "radswnet", 2, net);
grid_out.grid2D -= net.grid2D;
}
if (parameter==MeteoGrids::ILWR) readGridLayer(fin, filename, "radlwin", 1, grid_out);
if (parameter==MeteoGrids::ILWR) readGridLayer(fin, filename, "radlwin", 2, grid_out);
if (parameter==MeteoGrids::ALB) {
Grid2DObject rswr, iswr;
readGridLayer(fin, filename, "radsw", 1, iswr);
readGridLayer(fin, filename, "radswnet", 1, grid_out); //net radiation
readGridLayer(fin, filename, "radsw", 2, iswr);
readGridLayer(fin, filename, "radswnet", 2, grid_out); //net radiation
rswr.grid2D = iswr.grid2D - grid_out.grid2D;
grid_out.grid2D = iswr.grid2D/rswr.grid2D;
}
......@@ -235,7 +235,7 @@ void ARPSIO::read2DGrid_internal(FILE* &fin, const std::string& filename, Grid2D
//Basic meteo parameters
if (parameter==MeteoGrids::P) readGridLayer(fin, filename, "p", 2, grid_out);
if (parameter==MeteoGrids::TSG) readGridLayer(fin, filename, "tsoil", 1, grid_out); //or is it tss for us?
if (parameter==MeteoGrids::TSG) readGridLayer(fin, filename, "tsoil", 2, grid_out); //or is it tss for us?
/*if (parameter==MeteoGrids::RH) {
//const double epsilon = Cst::gaz_constant_dry_air / Cst::gaz_constant_water_vapor;
readGridLayer(filename, "qv", 2, grid_out); //water vapor mixing ratio
......@@ -245,26 +245,26 @@ void ARPSIO::read2DGrid_internal(FILE* &fin, const std::string& filename, Grid2D
}*/
//Hydrological parameters
if (parameter==MeteoGrids::HS) readGridLayer(fin, filename, "snowdpth", 1, grid_out);
if (parameter==MeteoGrids::HS) readGridLayer(fin, filename, "snowdpth", 2, grid_out);
if (parameter==MeteoGrids::PSUM) {
readGridLayer(fin, filename, "prcrate1", 1, grid_out); //in kg/m^2/s
readGridLayer(fin, filename, "prcrate1", 2, grid_out); //in kg/m^2/s
grid_out.grid2D *= 3600.; //we need kg/m^2/h
}
//DEM
const std::string dem_marker = (is_true_arps)? "zp coordinat" : "zp_coordinat";
if (parameter==MeteoGrids::DEM) readGridLayer(fin, filename, dem_marker, 1, grid_out);
if (parameter==MeteoGrids::DEM) readGridLayer(fin, filename, dem_marker, 2, grid_out);
if (parameter==MeteoGrids::SLOPE) {
DEMObject dem;
dem.setUpdatePpt(DEMObject::SLOPE);
readGridLayer(fin, filename, dem_marker, 1, dem);
readGridLayer(fin, filename, dem_marker, 2, dem);
dem.update();
grid_out.set(dem.cellsize, dem.llcorner, dem.slope);
}
if (parameter==MeteoGrids::AZI) {
DEMObject dem;
dem.setUpdatePpt(DEMObject::SLOPE);
readGridLayer(fin, filename, dem_marker, 1, dem);
readGridLayer(fin, filename, dem_marker, 2, dem);
dem.update();
grid_out.set(dem.cellsize, dem.llcorner, dem.azi);
}
......@@ -297,6 +297,8 @@ void ARPSIO::read3DGrid(Grid3DObject& grid_out, const std::string& i_name)
// Read until the parameter is found
moveToMarker(fin, filename, parameter);
skipLayers(fin, filename, 1); //for now, consider that all 3D fields have a purely numeric first layer
//read the data we are interested in
for (size_t ix = 0; ix < dimx; ix++) {
......@@ -327,8 +329,6 @@ void ARPSIO::readDEM(DEMObject& dem_out)
void ARPSIO::initializeGRIDARPS(FILE* &fin, const std::string& filename)
{
double v1, v2;
//go to read the sizes
moveToMarker(fin, filename, "nnx");
//finish reading the line and move to the next one
......@@ -347,6 +347,7 @@ void ARPSIO::initializeGRIDARPS(FILE* &fin, const std::string& filename)
//initializing cell size
moveToMarker(fin, filename, "x_coordinate");
double v1, v2;
if (fscanf(fin,"%lg %lg",&v1,&v2)!=2) {
fclose(fin);
throw InvalidFormatException("Can not read first two x coordinates from file "+filename, AT);
......@@ -370,8 +371,6 @@ void ARPSIO::initializeGRIDARPS(FILE* &fin, const std::string& filename)
void ARPSIO::initializeTrueARPS(FILE* &fin, const std::string& filename, const char curr_line[ARPS_MAX_LINE_LENGTH])
{
double v1, v2;
//go to read the sizes
if (sscanf(curr_line," nx = %u, ny = %u, nz = %u ",&dimx,&dimy,&dimz)!=3) {
fclose(fin);
......@@ -384,6 +383,7 @@ void ARPSIO::initializeTrueARPS(FILE* &fin, const std::string& filename, const c
//initializing cell size
moveToMarker(fin, filename, "x coordinate");
double v1, v2;
if (fscanf(fin,"%lg %lg",&v1,&v2)!=2) {
fclose(fin);
throw InvalidFormatException("Can not read first two x coordinates from file "+filename, AT);
......@@ -415,8 +415,6 @@ void ARPSIO::initializeTrueARPS(FILE* &fin, const std::string& filename, const c
void ARPSIO::openGridFile(FILE* &fin, const std::string& filename)
{
unsigned int v1;
if (!IOUtils::fileExists(filename)) throw AccessException(filename, AT); //prevent invalid filenames
if ((fin=fopen(filename.c_str(),"r")) == NULL) {
fclose(fin);
......@@ -433,6 +431,7 @@ void ARPSIO::openGridFile(FILE* &fin, const std::string& filename)
}
}
zcoord.clear(); //reset the zcoord
unsigned int v1;
if (sscanf(dummy," nx = %u, ny = ", &v1)<1) {
//this is an ASCII file modified by ARPSGRID
is_true_arps=false;
......@@ -449,6 +448,27 @@ void ARPSIO::openGridFile(FILE* &fin, const std::string& filename)
rewind(fin);
}
/** @brief Skip the given number of layers from the ARPS file
* Usually, the first layer for a given parameter is purely numeric and therefore should
* be skipped.
* @param fin file pointer
* @param filename file name to use for error messages
* @param layer Index of the layer to skip (1 to dimz)
*/
void ARPSIO::skipLayers(FILE* &fin, const std::string& filename, const unsigned int& layers) const
{
if (layers>1) {
double tmp;
const size_t jmax=dimx*dimy*(layers-1);
for (size_t j = 0; j < jmax; j++) {
if (fscanf(fin," %16lf%*[\n]",&tmp)==EOF) {
fclose(fin);
throw InvalidFormatException("Fail to skip data layers in file "+filename, AT);
}
}
}
}
/** @brief Read a specific layer for a given parameter from the ARPS file
* @param parameter The parameter to extract. This could be any of the following:
* - x_coordinate for getting the X coordinates of the mesh
......@@ -478,16 +498,7 @@ void ARPSIO::readGridLayer(FILE* &fin, const std::string& filename, const std::s
moveToMarker(fin, filename, parameter);
// move to the begining of the layer of interest
if (layer>1) {
double tmp;
const size_t jmax=dimx*dimy*(layer-1);
for (size_t j = 0; j < jmax; j++) {
if (fscanf(fin," %16lf%*[\n]",&tmp)==EOF) {
fclose(fin);
throw InvalidFormatException("Fail to skip data layers in file "+filename, AT);
}
}
}
skipLayers(fin, filename, layer);
//read the data we are interested in
for (size_t iy = 0; iy < dimy; iy++) {
......
meteoio/plugins/ARPSIO.h
View file @ 8d242fcd
......@@ -67,7 +67,8 @@ class ARPSIO : public IOInterface {
void initializeTrueARPS(FILE* &fin, const std::string& filename, const char curr_line[ARPS_MAX_LINE_LENGTH]);
void openGridFile(FILE* &fin, const std::string& filename);
void readGridLayer(FILE* &fin, const std::string& filename, const std::string& parameter, const unsigned int& layer, Grid2DObject& grid);
void moveToMarker(FILE* &fin, const std::string& filename, const std::string& marker);
static void moveToMarker(FILE* &fin, const std::string& filename, const std::string& marker);
void skipLayers(FILE* &fin, const std::string& filename, const unsigned int& layers) const;
const Config cfg;
static const double plugin_nodata; //plugin specific nodata value, e.g. -999
......
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