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Top
left: uncertainty glyphs – uncertainty
in direction mapped to width of arrow head.
Uncertainty in magnitude
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can be
mapped to extra bars on the arrow head (not shown).
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Top
right: contour lines showing
uncertainty. Solid contour lines
represent high certainty, while
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dashed
and broken contours represent places with higher uncertainty. Color can be used for other
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fields. Other possibilities include line thickness,
transparency, etc.
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Bottom
set: Shows volume rendering of ocean
circulation model data using a 2D transfer function.
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The
transfer function on the left is actually a scatterplot of data vs
uncertainty. The user then specifies
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what
color to render different parts of the scatterplot. In this example, low data values with low
uncertainties
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are
colored green, while high data values with low uncertainties are colored
red. The images on the right
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shows
volume rendered images of the circulation data. The dark regions correspond to places where
the
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uncertainty
values are higher – which also happen to be in the vicinity of a shelf break
region where there
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is
higher standard deviation of different physical fields such as temperature,
salinity, etc.
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