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PlotModes

(go to Plot Options
go to Data Return)

The main category of in the CCMC visualization is called PlotMode. Data can be displayed in different ways such as scalar mountain, contours or vector arrows, and multiple physical quantities can be displayed in a layered plot. Here are the PlotModes:

  • Surface: The data in the 2D slice (quantity Q1 at X=constant, Y=constant, or Z=constant, see below in the select cut plane section of the form) is displayed as a mountain-like surface (Fig 1).
    In the choose plot area section of the form the user can restrict the area plotted (this applies to all Plot Modes).
    EarthView replaces Surface in the ionosphere visualization interface. EarthView displays the variable wrapped onto the Earth showing the continents as geographical reference. The parameters AX and AZ can be used to look at the result from different directions.
  • Line Plot: Up to three variables (Q1,Q2,Q3, purged of duplicates) can be plotted along any straight line through the 3-D (2-D) domain. The start point [X1,Y1,Z1] and the end point [X2,Y2,Z2] are selected in the choose plot area section of the form. Masked areas will be shown as empty space between vertical thick lines. Small tick marks on the X-axis show location of grid points.
  • Vertical Plot: Data are plotted like Line Plot, but along the vertical line defined by the start point coordinates and over the entire range in the vertical (Z, H, or Alt) coordinate (Fig. 3). The data are either interpolated (101 elements) or sampled with maximum resolution (defined by the unique grid positions in the vertical direction). The vertical axis is the altitude and model output variables are plotted in horizontal direction.
  • Contour: the slice is shown as a 2D plot with contours (lines with constant levels of quantity Q1).
  • Vector: The components of a vector (e. g. V, B, J) in the slice plane are shown as arrows (centered on sample positions like compass needles). It is recommended to interpolate data onto an equidistant grid to get an even distribution of arrows in the plot domain.
    Choose Q1 to be any component of a vector (e. g. V_x, B_z, J_y), otherwise the (scalar) choice (e. g. N or P) will be displayed as a Surface.
  • ColorContour: Contour plot using color-filled levels (Fig. 4). The model grid and boundaries of interest (e.g., Fok model boundary, geosynchronous orbit) can be displayed on the plot.
  • Color+Vector: Combination of ColorContour plot with Vector (arrows) on top (Q1: any choice for color contour, Q2: any component of a vector, Fig. 5).
  • Contour+Vector: Combination of plain Contour with Vector (Q1: any choice, Q2: component of a vector).
  • Color+Contour: Combination of ColorContour and plain Contour (Q1 and Q3 are used and can be any choice of quantity).
  • Color,Vector+Contour: Combination of ColorContour, Vector and plain Contour plots. This option uses all three choices Q1, Q2, Q3 for ColorContour, Vector and Contour, respectively)
  • Color,Vector+Flow Lines: Combination of ColorContour,Vector and the display of vector flow lines (Q2 and Q3 must be components of a vector quantity). Fig. 6
    Flow lines are traced in 3D from cut plane, but are projected onto the cut plane, available start points are pre-defined in the cut plane, random (Flow Line Setup below) and user-defined.
  • 3D-Flowlines: This plot (Fig. 6) option uses variable Q1 to generate
    - magnetic field lines for B, or B1 (adding analytical expression for dipole if B1 is selected),
    or
    - flow lines for V, J, E, etc..
    Field lines and flow lines are traced in 3D, starting from predefined starting points and user-defined starting points according to the selection of the Flowline Setup Mode that determines the distribution of pre-defined start points.
  • Color Contour on Sphere: Using the radius of the exclusion area it is possible to render a sphere with the scalar quantity Q1 in color (Fig. 9). Interpolated values at the positions used for the plot can also be written to ASCII text files returned to the user. The view direction is controlled by the view angles AX (elevation angle in degrees) and AZ (azimuth angle from negative Y-axis).
  • SWX 3D-Flowlines: This plot (Fig. 8) option uses variable Q1 to generate
    - magnetic field lines for B, or B1 (adding analytical expression for dipole if B1 is selected),
    or
    - flow lines for V, J, E, etc..
    Field lines and flow lines are traced in 3D, starting from predefined starting points and user-defined starting points according to the selection of the Flowline Setup Mode that determines the distribution of pre-defined start points.
  • SWX Slice:(Fig. 10) Creates a slice through the 3D data, with the variable Q1 mapped to color.
  • SWX Contour Slice:(Fig. 11) Uses variable Q1
  • SWX Flowlines + Slice:(Fig. 12) Uses variable Q1 to generate flowlines and variable Q2 to generate the slice.
  • SWX Flowlines + Contour Slice:(Fig. 13) Uses variable Q1 to generate flowlines and variable Q2 to generate the slice.
  • SWX Slice-SurfacePlot:(Fig. 14) A surface plot version of the slice visualization. See the surface plot description above. Uses variable Q1 to generate the slice.
  • SWX Contour Slice-SurfacePlot:(Fig. 15) A surface plot version of the contour slice visualization. See the surface plot description above. Uses variable Q1 to generate the slice.
  • SWX Flowlines+Slice-SurfacePlot:(Fig. 16) Uses variable Q1 to generate flowlines and variable Q2 to generate the slice.
  • SWX Flowlines+Contour Slice-SurfacePlot:(Fig. 17) Uses variable Q1 to generate flowlines and variable Q2 to generate the slice.

 

3D Flowline Plot
Fig. 6: 3D Flow Line plot: Name of variable shown at end of Z axis. Line colors as in 2D flow line plots. In this example, a series of user-selected field line start points (at 15° intervals at 3 RS) was provided in addition to the pre-defined start points on the solar surface. SWX-Flowlines
Fig. 8: SWX 3D Flow Line plot. SWX-Slice
Fig. 10: SWX Slice. SWX-Flowlines + Slice
Fig. 12: SWX Flowlines + Slice. SWX Slice-SurfacePlot
Fig. 14: SWX Slice-SurfacePlot. SWX-Flowlines + Slice-SurfacePlot
Fig. 16: SWX Flowlines + Slice-SurfacePlot.

Surface plot
Fig. 1: Surface: Single quantity data as elevation plot.

EarthView Plot
Fig. 2: EarthView plot Earthview is availabe for ionospheric data plotted at constant altitude.

Vertical Line plot
Fig. 3: Vertical Line: Multiple quantities along line in Z.

Color Contour plot with model grid
Fig. 4: Color Contour (with model grid): Single variable in color with model grid (Fok Ring Current: irregular Lagrangian grid).

Color Contour + Vector Plot
Fig. 5: Color Contour and Vector: Variable shown in color is named with color bar, vector variable and largest amplitude printed in upper right.
Outline of continents establishes reference to geographic coodinates.

Color Contour,Vector Arrows and Flow Lines
Fig. 7: Color Contour, Vector, and Flow Line:: Name of variable in third layer (flow lines) is shown in the center of the right margin: Colors of flow lines are selected depending on their connectivity to the central body (Earth).

Color Contour on Sphere Plot
Fig. 9: Color Contour on Sphere:: Scalar variable rendered in color on sphere around the central body (here: Earth).

SWX Slice
Fig. 11: SWX Contour Slice:

SWX Slice
Fig. 13: SWX Flowlines + Contour Slice:

SWX Slice
Fig. 15: SWX Contour Slice-SurfacePlot

SWX Slice
Fig. 17: SWX Flowlines + Contour Slice-SurfacePlot

General options for all PlotModes

(subsections: ASCII output options, Options that modify appearance of plots or Plot options for 2D ionosphere )

Note: "X", "Y", "Z" stand here not only for the Cartesian coordinates but also for the names of the first, second, and third coordinates of any model grid (e. g., radius "r", longitude "lon", and latitude "lat" for a spherical grid).

Selection of plot area

These fields are only present for the interface accessing three-dimensional data (see options for two-dimensional data below).

Exclude Region

A certain region around the central body (Earth, Sun, or other object, depending of model and domain) can be excluded from a plot (changing the automatically calculated plot data range).
In 2D slice plots, the excluded region shows up as a black disk around the origin with the (partially sunlit) Earth in center, if applicable.
In Line plots, no data are displayed in the excluded region which is bounded by vertical lines in the plot.
3D-Flowline plots show a ball at the origin representing the location of the Earth, the Sun or any other "Central body" future models may have). The ball radius is either the radius of the body or is specified by the radius of the excluded region.

Options for Flow lines:

Flow lines are set up with pre-defined start points in the plot area selected with field lines starting at the inner bioundary or the boundary of the excluded region, along the X-axis (Earth magnetosphere), along the box boundaries (upstream boundary for veclocity in global magnetosphere). Special separation lines such as the solar coronal neutral line (PFSS, at outer radius of domain). Flow lines are tracked up to the inner boundary (boundary near the "Central Body") of the simulation domain.
Flow lines are color-coded depending on their connection to the inner boundary:

ASCII output options:

Raw data may be returned to the user by checking and selecting the following options:

Options that modify appearance of plots:

Plot options for 2D ionosphere:

Cut plane and plot area selections described for the 3D interface are replaced by the following, simpler interface options:
Page maintenance:
Authorizing NASA Official:
Last updated: April 2, 2007
National Aeronautics and Space Administration Air Force Materiel Command Air Force Office of Scientific Research Air Force Research Laboratory Air Force Weather Agency NOAA Space Environment Center National Science Foundation Office of Naval Research

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