This icon derives (and returns) a vertical cross section data unit of upper air fields along a specified arbitrary transect line. For each upper air field, point values are interpolated along the transect line, with a spacing consistent with the resolution of the input GRIB data. The cross section data can be plotted (using a default visualisation and with the plot area based on the range of data values) or saved as a NetCDF data file. If an orography is plotted it can be customised by applying a Graph Plotting visual definition icon.
If access to the output computed values is not required, or for more control of the plotting, use the Cross Section View icon. The macro language equivalent is mcross_sect(). | 