/**
* Define Dimensions, Variables, Attributes in ncfile
*
* @param raf ucar.unidata.io.RandomAccessFile corresponds of SIGMET datafile.
* @param ncfile an empty NetcdfFile object which will be filled.
* @param hdrNames java.util.Map with values for "StationName.." Attributes
* @return ArrayList of Variables of ncfile
*/
public ArrayList<Variable> init(
ucar.unidata.io.RandomAccessFile raf,
ucar.nc2.NetcdfFile ncfile,
java.util.Map<String, String> hdrNames)
throws java.io.IOException {
// prepare attribute values
String[] data_name = {
" ", "TotalPower", "Reflectivity", "Velocity", "Width", "Differential_Reflectivity"
};
String[] unit = {" ", "dbZ", "dbZ", "m/sec", "m/sec", "dB"};
int[] type = {1, 2, 3, 4, 5};
String def_datafile = "SIGMET-IRIS";
String tim = "";
int ngates = 0;
recHdr = readRecordsHdr(raf);
hdrNames = readStnNames(raf);
String stnName = hdrNames.get("StationName");
String stnName_util = hdrNames.get("StationName_SetupUtility");
float radar_lat =
recHdr.get("radar_lat").floatValue(); // System.out.println("rad_lat="+radar_lat);
float radar_lon =
recHdr.get("radar_lon").floatValue(); // System.out.println("rad_lon="+radar_lon);
short ground_height =
recHdr.get("ground_height").shortValue(); // System.out.println("ground_H="+ground_height);
short radar_height =
recHdr.get("radar_height").shortValue(); // System.out.println("radar_H="+radar_height);
int radar_alt =
(recHdr.get("radar_alt").intValue()) / 100; // System.out.println("rad_alt="+radar_alt);
short num_rays =
recHdr.get("num_rays").shortValue(); // System.out.println("num_rays="+num_rays);
short bins = recHdr.get("bins").shortValue(); // System.out.println("bins="+bins);
float range_first =
(recHdr.get("range_first").intValue())
* 0.01f; // System.out.println("range_1st="+range_first);
float range_last =
(recHdr.get("range_last").intValue()) * 0.01f; // System.out.println("step="+step);
short number_sweeps = recHdr.get("number_sweeps").shortValue();
// System.out.println("number_sweeps="+number_sweeps);
int nparams = (recHdr.get("nparams").intValue()); // System.out.println("nparams="+nparams);
short year = recHdr.get("year").shortValue(); // System.out.println("year="+year);
short month = recHdr.get("month").shortValue();
short day = recHdr.get("day").shortValue();
int base_time = (recHdr.get("base_time").intValue());
// define number of gates for every sweep
sweep_bins = new int[nparams * number_sweeps];
if (number_sweeps > 1) {
sweep_bins = volScan.getNumberGates();
} else {
for (int kk = 0; kk < nparams; kk++) {
sweep_bins[kk] = bins;
}
}
// add Dimensions
Dimension scanR = new Dimension("scanR", number_sweeps, true);
Dimension radial = new Dimension("radial", num_rays, true);
Dimension[] gateR = new Dimension[number_sweeps];
String dim_name = "gateR";
for (int j = 0; j < number_sweeps; j++) {
if (number_sweeps > 1) {
dim_name = "gateR_sweep_" + (j + 1);
}
gateR[j] = new Dimension(dim_name, sweep_bins[j], true);
}
ncfile.addDimension(null, scanR);
ncfile.addDimension(null, radial);
for (int j = 0; j < number_sweeps; j++) {
ncfile.addDimension(null, gateR[j]);
}
ArrayList<Dimension> dims0 = new ArrayList<Dimension>();
ArrayList<Dimension> dims1 = new ArrayList<Dimension>();
ArrayList<Dimension> dims2 = new ArrayList<Dimension>();
ArrayList<Dimension> dims3 = new ArrayList<Dimension>();
ArrayList<Variable> varList = new ArrayList<Variable>();
Variable[][] v = new Variable[nparams][number_sweeps];
String var_name = "";
for (int j = 0; j < nparams; j++) {
int tp = type[j];
var_name = data_name[tp];
for (int jj = 0; jj < number_sweeps; jj++) {
if (number_sweeps > 1) {
var_name = data_name[tp] + "_sweep_" + (jj + 1);
}
v[j][jj] = new Variable(ncfile, null, null, var_name);
v[j][jj].setDataType(DataType.FLOAT);
dims2.add(radial);
dims2.add(gateR[jj]);
v[j][jj].setDimensions(dims2);
v[j][jj].addAttribute(new Attribute(CDM.LONG_NAME, var_name));
v[j][jj].addAttribute(new Attribute(CDM.UNITS, unit[tp]));
String coordinates = "time elevationR azimuthR distanceR";
v[j][jj].addAttribute(new Attribute(_Coordinate.Axes, coordinates));
v[j][jj].addAttribute(new Attribute(CDM.MISSING_VALUE, -999.99f));
ncfile.addVariable(null, v[j][jj]);
varList.add(v[j][jj]);
dims2.clear();
}
}
tsu_sec = new int[number_sweeps];
String[] tsu = new String[number_sweeps];
String[] time_units = new String[number_sweeps];
tsu_sec = volScan.getStartSweep();
for (int i = 0; i < number_sweeps; i++) {
String st1 = Short.toString(month);
if (st1.length() < 2) st1 = "0" + st1;
String st2 = Short.toString(day);
if (st2.length() < 2) st2 = "0" + st2;
date0 = String.valueOf(year) + "-" + st1 + "-" + st2;
tsu[i] = date0 + "T" + calcTime(tsu_sec[i], 0) + "Z";
}
for (int j = 0; j < number_sweeps; j++) {
time_units[j] = "secs since " + tsu[j];
}
dims0.add(radial);
// add "time" variable
Variable[] time = new Variable[number_sweeps];
String tm = "time";
String tm_name = "";
for (int j = 0; j < number_sweeps; j++) {
tm_name = tm;
if (number_sweeps > 1) {
tm_name = tm + "_sweep_" + (j + 1);
}
time[j] = new Variable(ncfile, null, null, tm_name);
time[j].setDataType(DataType.INT);
time[j].setDimensions(dims0);
time[j].addAttribute(new Attribute(CDM.LONG_NAME, "time from start of sweep"));
time[j].addAttribute(new Attribute(CDM.UNITS, time_units[j]));
time[j].addAttribute(new Attribute(_Coordinate.AxisType, AxisType.Time.toString()));
time[j].addAttribute(new Attribute(CDM.MISSING_VALUE, -99));
ncfile.addVariable(null, time[j]);
varList.add(time[j]);
}
// add "elevationR" variable
Variable[] elevationR = new Variable[number_sweeps];
String ele = "elevationR";
String ele_name = "";
for (int j = 0; j < number_sweeps; j++) {
ele_name = ele;
if (number_sweeps > 1) {
ele_name = ele + "_sweep_" + (j + 1);
}
elevationR[j] = new Variable(ncfile, null, null, ele_name);
elevationR[j].setDataType(DataType.FLOAT);
elevationR[j].setDimensions(dims0);
elevationR[j].addAttribute(new Attribute(CDM.LONG_NAME, "elevation angle"));
elevationR[j].addAttribute(new Attribute(CDM.UNITS, "degrees"));
elevationR[j].addAttribute(
new Attribute(_Coordinate.AxisType, AxisType.RadialElevation.toString()));
elevationR[j].addAttribute(new Attribute(CDM.MISSING_VALUE, -999.99f));
ncfile.addVariable(null, elevationR[j]);
varList.add(elevationR[j]);
}
// add "azimuthR" variable
Variable[] azimuthR = new Variable[number_sweeps];
String azim = "azimuthR";
String azim_name = "";
for (int j = 0; j < number_sweeps; j++) {
azim_name = azim;
if (number_sweeps > 1) {
azim_name = azim + "_sweep_" + (j + 1);
}
azimuthR[j] = new Variable(ncfile, null, null, azim_name);
azimuthR[j].setDataType(DataType.FLOAT);
azimuthR[j].setDimensions(dims0);
azimuthR[j].addAttribute(new Attribute(CDM.LONG_NAME, "azimuth angle"));
azimuthR[j].addAttribute(new Attribute(CDM.UNITS, "degrees"));
azimuthR[j].addAttribute(
new Attribute(_Coordinate.AxisType, AxisType.RadialAzimuth.toString()));
azimuthR[j].addAttribute(new Attribute(CDM.MISSING_VALUE, -999.99f));
ncfile.addVariable(null, azimuthR[j]);
varList.add(azimuthR[j]);
}
// add "distanceR" variable
Variable[] distanceR = new Variable[number_sweeps];
String dName = "distanceR";
String dist_name = "";
for (int j = 0; j < number_sweeps; j++) {
dist_name = dName;
if (number_sweeps > 1) {
dist_name = dName + "_sweep_" + (j + 1);
}
distanceR[j] = new Variable(ncfile, null, null, dist_name);
distanceR[j].setDataType(DataType.FLOAT);
dims1.add(gateR[j]);
distanceR[j].setDimensions(dims1);
distanceR[j].addAttribute(new Attribute(CDM.LONG_NAME, "radial distance"));
distanceR[j].addAttribute(new Attribute(CDM.UNITS, "m"));
distanceR[j].addAttribute(
new Attribute(_Coordinate.AxisType, AxisType.RadialDistance.toString()));
ncfile.addVariable(null, distanceR[j]);
varList.add(distanceR[j]);
dims1.clear();
}
// add "numGates" variable
dims3.add(scanR);
Variable numGates = new Variable(ncfile, null, null, "numGates");
numGates.setDataType(DataType.INT);
numGates.setDimensions(dims3);
numGates.addAttribute(new Attribute(CDM.LONG_NAME, "number of gates in the sweep"));
ncfile.addVariable(null, numGates);
varList.add(numGates);
// add global attributes
ncfile.addAttribute(null, new Attribute("definition", "SIGMET-IRIS RAW"));
ncfile.addAttribute(
null, new Attribute("description", "SIGMET-IRIS data are reading by Netcdf IOSP"));
ncfile.addAttribute(null, new Attribute("StationName", stnName));
ncfile.addAttribute(null, new Attribute("StationName_SetupUtility", stnName_util));
ncfile.addAttribute(null, new Attribute("radar_lat", radar_lat));
ncfile.addAttribute(null, new Attribute("radar_lon", radar_lon));
ncfile.addAttribute(null, new Attribute("ground_height", ground_height));
ncfile.addAttribute(null, new Attribute("radar_height", radar_height));
ncfile.addAttribute(null, new Attribute("radar_alt", radar_alt));
ncfile.addAttribute(null, new Attribute("num_data_types", nparams));
ncfile.addAttribute(null, new Attribute("number_sweeps", number_sweeps));
String sn = "start_sweep";
String snn = "";
for (int j = 0; j < number_sweeps; j++) {
snn = sn;
if (number_sweeps > 1) {
snn = sn + "_" + (j + 1);
}
ncfile.addAttribute(null, new Attribute(snn, tsu[j]));
}
ncfile.addAttribute(null, new Attribute("num_rays", num_rays));
ncfile.addAttribute(null, new Attribute("max_number_gates", bins));
ncfile.addAttribute(null, new Attribute("range_first", range_first));
ncfile.addAttribute(null, new Attribute("range_last", range_last));
ncfile.addAttribute(null, new Attribute("DataType", "Radial"));
ncfile.addAttribute(null, new Attribute(CDM.CONVENTIONS, _Coordinate.Convention));
// --------- fill all of values in the ncfile ------
doNetcdfFileCoordinate(
ncfile, volScan.base_time, volScan.year, volScan.month, volScan.day, varList, recHdr);
ncfile.finish();
return varList;
}
public Variable makeVariable(
NetcdfFile ncfile,
int datatype,
String shortName,
String longName,
String abbrev,
List groups)
throws IOException {
int nscans = groups.size();
if (nscans == 0) {
throw new IllegalStateException("No data for " + shortName);
}
// get representative record
List firstGroup = (List) groups.get(0);
Cinrad2Record firstRecord = (Cinrad2Record) firstGroup.get(0);
int ngates = firstRecord.getGateCount(datatype);
String scanDimName = "scan" + abbrev;
String gateDimName = "gate" + abbrev;
Dimension scanDim = new Dimension(scanDimName, nscans);
Dimension gateDim = new Dimension(gateDimName, ngates);
ncfile.addDimension(null, scanDim);
ncfile.addDimension(null, gateDim);
ArrayList dims = new ArrayList();
dims.add(scanDim);
dims.add(radialDim);
dims.add(gateDim);
Variable v = new Variable(ncfile, null, null, shortName);
v.setDataType(DataType.BYTE);
v.setDimensions(dims);
ncfile.addVariable(null, v);
v.addAttribute(new Attribute(CDM.UNITS, Cinrad2Record.getDatatypeUnits(datatype)));
v.addAttribute(new Attribute(CDM.LONG_NAME, longName));
byte[] b = new byte[2];
b[0] = Cinrad2Record.MISSING_DATA;
b[1] = Cinrad2Record.BELOW_THRESHOLD;
Array missingArray = Array.factory(DataType.BYTE.getPrimitiveClassType(), new int[] {2}, b);
v.addAttribute(new Attribute(CDM.MISSING_VALUE, missingArray));
v.addAttribute(
new Attribute("signal_below_threshold", new Byte(Cinrad2Record.BELOW_THRESHOLD)));
v.addAttribute(
new Attribute(CDM.SCALE_FACTOR, new Float(Cinrad2Record.getDatatypeScaleFactor(datatype))));
v.addAttribute(
new Attribute(CDM.ADD_OFFSET, new Float(Cinrad2Record.getDatatypeAddOffset(datatype))));
v.addAttribute(new Attribute(CDM.UNSIGNED, "true"));
ArrayList dim2 = new ArrayList();
dim2.add(scanDim);
dim2.add(radialDim);
// add time coordinate variable
String timeCoordName = "time" + abbrev;
Variable timeVar = new Variable(ncfile, null, null, timeCoordName);
timeVar.setDataType(DataType.INT);
timeVar.setDimensions(dim2);
ncfile.addVariable(null, timeVar);
// int julianDays = volScan.getTitleJulianDays();
// Date d = Cinrad2Record.getDate( julianDays, 0);
// Date d = Cinrad2Record.getDate(volScan.getTitleJulianDays(), volScan.getTitleMsecs());
Date d = volScan.getStartDate();
String units = "msecs since " + formatter.toDateTimeStringISO(d);
timeVar.addAttribute(new Attribute(CDM.LONG_NAME, "time since base date"));
timeVar.addAttribute(new Attribute(CDM.UNITS, units));
timeVar.addAttribute(new Attribute(CDM.MISSING_VALUE, new Integer(MISSING_INT)));
timeVar.addAttribute(new Attribute(_Coordinate.AxisType, AxisType.Time.toString()));
// add elevation coordinate variable
String elevCoordName = "elevation" + abbrev;
Variable elevVar = new Variable(ncfile, null, null, elevCoordName);
elevVar.setDataType(DataType.FLOAT);
elevVar.setDimensions(dim2);
ncfile.addVariable(null, elevVar);
elevVar.addAttribute(new Attribute(CDM.UNITS, "degrees"));
elevVar.addAttribute(
new Attribute(
CDM.LONG_NAME,
"elevation angle in degres: 0 = parallel to pedestal base, 90 = perpendicular"));
elevVar.addAttribute(new Attribute(CDM.MISSING_VALUE, new Float(MISSING_FLOAT)));
elevVar.addAttribute(new Attribute(_Coordinate.AxisType, AxisType.RadialElevation.toString()));
// add azimuth coordinate variable
String aziCoordName = "azimuth" + abbrev;
Variable aziVar = new Variable(ncfile, null, null, aziCoordName);
aziVar.setDataType(DataType.FLOAT);
aziVar.setDimensions(dim2);
ncfile.addVariable(null, aziVar);
aziVar.addAttribute(new Attribute(CDM.UNITS, "degrees"));
aziVar.addAttribute(
new Attribute(CDM.LONG_NAME, "azimuth angle in degrees: 0 = true north, 90 = east"));
aziVar.addAttribute(new Attribute(CDM.MISSING_VALUE, new Float(MISSING_FLOAT)));
aziVar.addAttribute(new Attribute(_Coordinate.AxisType, AxisType.RadialAzimuth.toString()));
// add gate coordinate variable
String gateCoordName = "distance" + abbrev;
Variable gateVar = new Variable(ncfile, null, null, gateCoordName);
gateVar.setDataType(DataType.FLOAT);
gateVar.setDimensions(gateDimName);
Array data =
Array.makeArray(
DataType.FLOAT,
ngates,
(double) firstRecord.getGateStart(datatype),
(double) firstRecord.getGateSize(datatype));
gateVar.setCachedData(data, false);
ncfile.addVariable(null, gateVar);
radarRadius = firstRecord.getGateStart(datatype) + ngates * firstRecord.getGateSize(datatype);
gateVar.addAttribute(new Attribute(CDM.UNITS, "m"));
gateVar.addAttribute(new Attribute(CDM.LONG_NAME, "radial distance to start of gate"));
gateVar.addAttribute(new Attribute(_Coordinate.AxisType, AxisType.RadialDistance.toString()));
// add number of radials variable
String nradialsName = "numRadials" + abbrev;
Variable nradialsVar = new Variable(ncfile, null, null, nradialsName);
nradialsVar.setDataType(DataType.INT);
nradialsVar.setDimensions(scanDim.getName());
nradialsVar.addAttribute(new Attribute(CDM.LONG_NAME, "number of valid radials in this scan"));
ncfile.addVariable(null, nradialsVar);
// add number of gates variable
String ngateName = "numGates" + abbrev;
Variable ngateVar = new Variable(ncfile, null, null, ngateName);
ngateVar.setDataType(DataType.INT);
ngateVar.setDimensions(scanDim.getName());
ngateVar.addAttribute(new Attribute(CDM.LONG_NAME, "number of valid gates in this scan"));
ncfile.addVariable(null, ngateVar);
makeCoordinateDataWithMissing(
datatype, timeVar, elevVar, aziVar, nradialsVar, ngateVar, groups);
// back to the data variable
String coordinates =
timeCoordName + " " + elevCoordName + " " + aziCoordName + " " + gateCoordName;
v.addAttribute(new Attribute(_Coordinate.Axes, coordinates));
// make the record map
int nradials = radialDim.getLength();
Cinrad2Record[][] map = new Cinrad2Record[nscans][nradials];
for (int i = 0; i < groups.size(); i++) {
Cinrad2Record[] mapScan = map[i];
List group = (List) groups.get(i);
for (int j = 0; j < group.size(); j++) {
Cinrad2Record r = (Cinrad2Record) group.get(j);
int radial = r.radial_num - 1;
mapScan[radial] = r;
}
}
Vgroup vg = new Vgroup(datatype, map);
v.setSPobject(vg);
return v;
}