How can I plot RHI from weather radar data ?

14 visualizaciones (últimos 30 días)
ss
ss el 23 de Jun. de 2020
Comentada: Xu Zhou el 17 de Nov. de 2020
I have radar reflectivity in (range,azimuth,elevation) coordinates. How can plot range height indiacator (RHI) of reflectivity along an azimuth in matlab?

Respuestas (1)

millercommamatt
millercommamatt el 23 de Jun. de 2020
I suggest using PyART.
But, for Matlab:
If you have a cfradial type data file the data are stored in 2-D arrays (gates x rays or range x time). For RHIs you need to parse through this to get the constant azimuth section to find the RHI in your volume. If you're trying to create an RHI from PPI scans, you'll need to match rays with the same elevation. Then you need to turn along beam range into along the ground range. You need to compute the height above the geoid the beam is. etc... It's a non-trivial exercise to do this from scratch and do it right. Hence, PyART.
Anyway, paring down the data you want to view is the hard part. Once you do that you can use surf.
surf(downrange_distance,beam_altitude,reflectivity,'EdgeColor','none');view(2);
  1 comentario
Xu Zhou
Xu Zhou el 17 de Nov. de 2020
which commdand can I use from Pyart if I create a RHI from PP scans?

Iniciar sesión para comentar.

Categorías

Más información sobre Environment and Clutter en Help Center y File Exchange.

Etiquetas

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by