XNI 24h accumulation

The typical collection has an example showing blockage, and an example showing the appearance of extreme AP.
(Some radars have multiple examples.)
If a radar in fact has minimal blockage an image may have been selected to illustrated that.
At some radars there are examples of other things (interference, sea clutter, etc).

smp/RadarFieldGuide/XNI_Blockage_Example1.gif

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smp/RadarFieldGuide/XNI_Blockage_Example2.gif

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smp/RadarFieldGuide/XNI_Blockage_Example3.gif

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smp/RadarFieldGuide/XNI_SuperAP_Example1.gif

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Line Maps in Polar Coordinates

These maps are based on line features extracted from Gooogle Earth for case studies. The display is in the radar's native polar coordinates (range,azimuth).

The features have been selected primarily because they relate to features seen on radar maps. So while many autoroute-style highways are in place, many are not. Less "important" roads will have been added if they have been relevant to some specific study. The same applies to geographic outlines, like shore lines, rivers and lakes. So for example Jimmy Lake is a minor feature that is included because is a source of sea clutter and some small islands near Montreal River appear as gaps in sea clutter.

Other features may appear: airports, wind farms, hydrolines and ship channels.

White dots show some point locations of interest, such as airports.

Colours are not complely consistent, but coast and rivers are blue, political boundaries are blue (too!), and transport is generally orange. Red has been used for ship channels and power corridors. Wind farms are magneta dots (incomplete).