mpas_analysis.shared.plot.plot_vertical_section

mpas_analysis.shared.plot.plot_vertical_section(config, field, colorMapSectionName, xCoords=None, zCoord=None, triangulation_args=None, xOutline=None, zOutline=None, suffix='', colorbarLabel=None, title=None, xlabels=None, ylabel=None, figsize=(10, 4), dpi=None, titleFontSize=None, defaultFontSize=None, titleY=None, axisFontSize=None, xLim=None, yLim=None, lineWidth=2, lineStyle='solid', lineColor='black', contourColormap=None, backgroundColor='grey', invalidColor='white', outlineValid=True, numUpperTicks=None, upperXAxisTickLabelPrecision=None, invertYAxis=True, xCoordIsTime=False, movingAveragePoints=None, firstYearXTicks=None, yearStrideXTicks=None, maxXTicks=20, calendar='gregorian', plotAsContours=False, contourComparisonField=None, comparisonFieldName=None, originalFieldName=None, comparisonContourLineWidth=None, comparisonContourLineStyle=None, comparisonContourLineColor=None, labelContours=False, contourLabelPrecision=1, maxTitleLength=None)

Plots a data set as a x distance (latitude, longitude, or spherical distance) vs depth map (vertical section).

Or, if xCoordIsTime is True, plots data set on a vertical Hovmoller plot (depth vs. time).

Typically, the field data are plotted using a heatmap, but if contourComparisonField is not None, then contours of both field and contourComparisonField are plotted instead.

Parameters

• config (instance of ConfigParser) – the configuration, containing a [plot] section with options that control plotting

• field (xarray.DataArray) – field array to plot. For contour plots, xCoords and zCoords should broadcast to the same shape as field. For heatmap plots, xCoords and zCoords are the corners of the plot. If they broadcast to the same shape as field, field will be bilinearly interpolated to center values for each plot cell. If the coordinates have one extra element in each direction than field, field is assumed to contain cell values and no interpolation is performed.

• colorMapSectionName (str) – section name in config where color map info can be found.

• xCoords (xarray.DataArray or list of xarray.DataArray, optional) – The x coordinate(s) for the field. Optional second and third entries will be used for a second and third x axis above the plot. The typical use for the second and third axis is for transects, for which the primary x axis represents distance along a transect, and the second and third x axes are used to display the corresponding latitudes and longitudes.

• zCoord (xarray.DataArray, optional) – The z coordinates for the field

• triangulation_args (dict, optional) – A dict of arguments to create a matplotlib.tri.Triangulation of the transect that does not rely on it being on a logically rectangular grid. The arguments rather than the triangulation itself are passed because multiple triangulations with different masks are needed internally and there is not an obvious mechanism for copying an existing triangulation. If this option is provided, xCoords is only used for tick marks if more than one x axis is requested, and zCoord will be ignored.

• xOutline (numpy.ndarray, optional) – pairs of points defining line segments that are used to outline the valid region of the mesh if outlineValid = True and triangulation_args is not None

• zOutline (numpy.ndarray, optional) – pairs of points defining line segments that are used to outline the valid region of the mesh if outlineValid = True and triangulation_args is not None

suffixstr, optional

the suffix used for colorbar config options

colorbarLabelstr, optional

the label for the colorbar. If plotAsContours and labelContours are both True, colorbarLabel is used as follows (typically in order to indicate the units that are associated with the contour labels): if contourComparisonField is None, the colorbarLabel string is parenthetically appended to the plot title; if contourComparisonField is not None, it is parenthetically appended to the legend entries of the contour comparison plot.

titlestr, optional

title of plot

xlabelsstr or list of str, optional

labels of x-axes. Labels correspond to entries in xCoords.

ylabelstr, optional

label of y-axis

figsizetuple of float, optional

size of the figure in inches, or None if the current figure should be used (e.g. if this is a subplot)

dpiint, optional

the number of dots per inch of the figure, taken from section plot option dpi in the config file by default

titleFontSizeint, optional

size of the title font

defaultFontSizeint, optional

the size of text other than the title

titleYfloat, optional

the y value to use for placing the plot title

axisFontSizeint, optional

size of the axis font

xLimfloat array, optional

x range of plot

yLimfloat array, optional

y range of plot

lineWidthfloat, optional

the line width of contour lines (if specified)

lineStylestr, optional

the line style of contour lines (if specified); this applies to the style of contour lines of fieldArray (the style of the contour lines of contourComparisonField is set using contourComparisonLineStyle).

lineColorstr, optional

the color of contour lines (if specified); this applies to the contour lines of fieldArray (the color of the contour lines of contourComparisonField is set using contourComparisonLineColor

backgroundColorstr, optional

the background color for the plot outside the limits of xCoord and zCoord.

invalidColorstr, optional

the color for invalid values (NaNs and masked areas will be shown in this color)

outlineValidbool, optional

whether to outline the boundary between the valid an invalid regions with a black contour

numUpperTicksint, optional

the approximate number of ticks to use on the upper x axis or axes (these are the second and third x axes, which are placed above the plot if they have been requested by specifying the secondXAxisData or thirdXAxisData arrays above)

upperXAxisTickLabelPrecisionint, optional

the number of decimal places (to the right of the decimal point) to use for values at upper axis ticks. This value can be adjusted (in concert with numUpperTicks) to avoid problems with overlapping numbers along the upper axis.

invertYAxislogical, optional

if True, invert Y axis

xCoordIsTimelogical, optional

if True, format the x axis for time (this applies only to the primary x axis, not to the optional second or third x axes)

movingAveragePointsint, optional

the number of points over which to perform a moving average NOTE: this option is mostly intended for use when xCoordIsTime is True, although it will work with other data as well. Also, the moving average calculation is based on number of points, not actual x axis values, so for best results, the values in the first entry in xCoords should be equally spaced.

firstYearXTicksint, optional

The year of the first tick on the x axis. By default, the first time entry is the first tick.

yearStrideXTicksint, optional

The number of years between x ticks. By default, the stride is chosen automatically to have maxXTicks tick marks or fewer.

maxXTicksint, optional

the maximum number of tick marks that will be allowed along the primary x axis. This may need to be adjusted depending on the figure size and aspect ratio. NOTE: maxXTicks is only used if xCoordIsTime is True

calendarstr, optional

the calendar to use for formatting the time axis NOTE: calendar is only used if xCoordIsTime is True

plotAsContoursbool, optional

if plotAsContours is True, instead of plotting field as a heatmap, the function will plot only the contours of field. In addition, if contourComparisonField is not None, the contours of this field will be plotted on the same plot. The selection of contour levels is still determined as for the contours on the heatmap plots, via the ‘contours’ entry in colorMapSectionName.

contourComparisonFieldfloat array, optional

a comparison field array (typically observational data or results from another simulation run), assumed to be of the same shape as field. If plotAsContours is True and countourComparisonFieldArray is not None, then contours of both field and contourComparisonField will be plotted in order to enable a comparison of the two fields on the same plot.

comparisonFieldNamestr, optional

the name for the comparison field. If contourComparisonField is None, this parameter is ignored.

originalFieldNamestr, optional

the name for the field field (for the purposes of labeling the contours on a contour comparison plot). If contourComparisonField is None, this parameter is ignored.

comparisonContourLineWidthfloat, optional

the line width of contour lines of the comparisonFieldName field on a contour comparison plot

comparisonContourLineStylestr, optional

the line style of contour lines of the comparisonFieldName field on a contour comparison plot

comparisonContourLineColorstr, optional

the line color of contour lines of the comparisonFieldName field on a contour comparison plot

labelContoursbool, optional

whether or not to label contour lines (if specified) with their values

contourLabelPrecisionint, optional

the precision (in terms of number of figures to the right of the decimal point) of contour labels

maxTitleLengthint or None, optional

the maximum number of characters in the title, beyond which it is truncated with a trailing ellipsis. The default is from the maxTitleLength config option.

Returns

• fig (matplotlib.figure.Figure) – The figure that was plotted

• ax (matplotlib.axes.Axes) – The subplot