I have a csv:

	direction	frequency	strength
0	0	278	2.91
1	22.5	178	2.91
2	45	231	3.62
3	67.5	588	4.61
4	90	633	3.58
5	112.5	360	3.67
6	135	296	3.52
7	157.5	357	4.64
8	180	469	5.08
9	202.5	546	4.73
10	225	436	4.02
11	247.5	300	3.63
12	270	281	3.72
13	292.5	290	3.19
14	315	200	3.76
15	337.5	222	3.07

"direction" suggests the wind direction angle (0 means North).

"frequency" suggests the concentration of something.

"strength" suggests the wind speed.

May I know how can I make a plot like these two:

with speed and direction being plotted and the concentration suggesting the color map!

I'll thumbs up, thanks!