assert time != null;
r = (VariableDS) ncd.findVariable("RadialVelocity");
assert r != null;
checkMissingValues(elev, azi, time, r);
r = (VariableDS) ncd.findVariable("SpectrumWidth");
assert r != null;
checkMissingValues(elev, azi, time, r);
}
private void checkMissingValues(VariableDS elev, VariableDS azi, VariableDS time, VariableDS q) throws IOException, InvalidRangeException {