This is a short chapter mainly to discuss other users of radar data apart from duty forecasters.
3.1. Quantitative precipitation estimates
3.2. Reflectivity
- Radar does not measure precipitation intensity (mm) but scattering of microwaves.
- Scattered power (W) is converted to reflectivity (dBZ) (radar equation, assumptions made) and that further to mm/h (ZR equation, assumptions made) z -> dBZ
- Marshal & Palmer RDSD
- Moments of RDSD (z, R, lwc)
- z not linear to R
- Typical z-R relations (write as R-z relation?)
- z of snow, graupel, hail
- Accumulation: role of time-interval
- vpr, melting layer (link to problems)
- Gauge comparisons are not straightforward
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
Uta Gjertsen: 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
