4.1 General background

• How a Doppler radar works, S-band, C-band
• Folding
• Non-meteorological echoes

 4.2 PPI displays of raw Doppler data of radial wind

The aim of this chapter is for the forecaster to be able to recognize mesoscale vortices and convergence and recognize wind towards or away from the radar.

 4.3 Wind profiles

The aim of this chapter is for the forecaster to be able to identify and follow the warm and cold advection, layers of vertical shear, fronts, low level jets.

• risk of folding even here (how to recognize)

 4.4. Shear products and warnings

The aim of this chapter is for the forecaster to be able to be aware when and where the automatic warnings (of e.g. azimuthal shear) do not work

• Data fusion (compare to dBZ)
• Geometry (near and far away from the radar...)

Material to this section is available through:

 Laurent Delobbe: animations, PowerPoint presentations and case study material
 Iwan Hollemann: PowerPoint presentations
 Roger Deslandes: animations, PowerPoint presentations, quizzes and case study material
 Wilfried Jacobs: animations, PowerPoint presentations, case study material and other
 Urs Germann: animations, PowerPoint presentations, quizzes and other
 Evelyn Murphy: PowerPoint presentations
 A.J. Illingworth: PowerPoint presentations and other
 Paul Joe: animations, PowerPoint presentations and case study material
 R.J. Keeler: PowerPoint presentations and other
 Martin Hagen: PowerPoint presentations and quizzes
 Peter Rodriguez: case study material and other
 Frederic Fabry: animations and other
 Günther Haase: PowerPoint presentations