convert polar to cartesian at sweep 1.5

[mr.nguye...@gmail.com]

I have a file RAW (sigmet) that has 5 sweeps (0.5, 1.5, 2.5, 4, 6,) when i extract sweep 0.5 and convert to grid it's ok, but when i choose to extract sweep 1.5  it's seem to be fail, someone can help me ???

this is my code:

import pyart

RADAR_NAME = 'PHA210207124005.RAWSB71'

# read in the data

radar = pyart.io.read_sigmet(RADAR_NAME)  

radar=radar.extract_sweeps([1]) #extract sweep 1.5

lat_0 = radar.latitude['data'][0]

lon_0 = radar.longitude['data'][0]

shape = (1, 601, 601)

grid = pyart.map.grid_from_radars(

            radar,

            grid_shape=shape, #Number of points in the grid (z, y, x)

            grid_limits=((30, 22000), (-300000, 300000), (-300000, 300000)), 

            grid_origin = (lat_0,lon_0),

            fields=['reflectivity'])

*this is with sweep 1.5

this is with sweep 0.5

[sherma...@gmail.com]

Hello,

What does a ppi plot with radarmapdisplay look like for that sweep?

[mr.nguye...@gmail.com]

this is a PPI for sweep 1.5

Vào lúc 09:45:24 UTC+7 ngày Thứ Sáu, 7 tháng 5, 2021, sherma...@gmail.com đã viết:

[sherma...@gmail.com]

I would check with your extracted sweep radar the height of your gates. Do radar.gate_z['data'].max(). I'm wondering if your grid limits for z are too low. Try setting higher height to maybe 50000 with 10 points in between and see what the new grid produces.

[leo lee]

I have the same issue, have you solve this issue yet?I tried to set higher height but it does not work for me, I tried other sweeps, neither of them works.

[sherma...@gmail.com]

Do you have an example file I can do some testing on? I'm not sure what is causing this, but if its both the PHA radar, wondering if an attribute is not being set correctly somewhere.