...
Specifies the data (GRIB icon) from which to derive the vertical profile data. The input GRIB icon must specify a multi-level (pressure or model levels) upper air meteorological variable, in a latitude-longitude or Gaussian grid. If the input data is specified in model levels, you must include the parameter LNSP should you want the vertical axis of the plot in pressure levels rather than model levels when visualising the output. Note that the input fields should be on the same grid. If more than one time and/or forecast step is contained in the GRIB icon, it returns a set of vertical profiles in the resulting data, but note that currently only the first of these will be plotted with a single plot() command.
Input Mode
Specifies whether to derive the vertical profile for a Point or an Area. Nearest Gridpoint will take In Point mode the nearest gridpoint to the point specified . Area 2 is an enhanced version of Area. It is more accurate and will work with a greater variety of projections. It should be used in preference to Area, which is included simply for backwards compatibilitywill be selected. The default value is Point.
Point
Specifies the coordinates of the point for which the vertical profile is calculated. Enter coordinates (lat/long) of a point separated by a "/". Alternatively, use the coordinate assist button.
...