added error checking and logging to NetCDF reader
added error checking and logging to NetCDF reader

nakijun/vtp,markraz/vtp,seanisom/vtp,markraz/vtp,markraz/vtp,markraz/vtp,seanisom/vtp,markraz/vtp,nakijun/vtp,seanisom/vtp,nakijun/vtp,seanisom/vtp,seanisom/vtp,nakijun/vtp,nakijun/vtp