Lesson 309 Radar Imagery Interpretation Flashcards
Can the interpretation of RADAR imagery be done properly independent of other tools?
No
In general, we should know what for our area of responsibility?
Forecast and current weather
What echo system has an extensive area of coverage?
Stratiform echo systems
What echo system has a strong intensity gradient?
Convective echoes
What echo system can be observed at longer ranges?
Convective systems
Name the signatures that may identify the presence of potentially severe echoes.
LIVEPEEEE
Line echo wave patterns (LEWP) Intersecting lines Echoes ahead of a line Echoes at the trailing end of a line V notches Protuberances or Appendages Echo height (vertical development) Echo intensity Echo movement (colliding cells, echo speed, motion to right of mean flow, persistence)
What is “typed” by the observer using his knowledge of RADAR propagation characteristics, display features, and ground truthing?
Precipitation
Area coverage is identified as a function of the amount of echoes within an outline. They are described as:
WSBS
Widely scattered <1/10 Scattered 1/10-5/10 Broken 6/10-9/10 Solid 10/10 *A cell is always solid
The precipitation scale consists of 5 intensities:
VSMWV
Very strong Strong Moderated to strong Weak to moderate Very weak
When describing convective precipitation, describe the type with the _______ ________ and always ground truth if possible.
Maximum intensity
When describing Stratiform precipitation, describe the type with the ________ ________ and always ground truth if possible.
Maximum coverage
When describing convective echo tops always give the ________ ________.
Highest top
When describing Stratiform echo tops always give the ________ _______.
Average tops
How often is lightning data collected by the CLDN?
Every minute
How accurate is the CLDN?
Within 500 metres
