this may be a silly question, but i can't figure out what the "O" means (SE O, N O, S O....)
It's certainly not wind speed.
this may be a silly question, but i can't figure out what the "O" means (SE O, N O, S O....)
It's certainly not wind speed.
because i never saw any other value, regardless of the wind conditions
It's the wind force scale... en.wikipedia.org/.../Beaufort_scale
It used to be the wind speed in MPH (for those of us int he USA). This too Garmin has broken.
that is a Zero 0 and not O, on the Australian Weather site (BOM) when its 0 wind speed(km/h) the direction defaults to N (0 or 360 degrees points north), when I am calculating Air Density for aerodynamics as a lower Air Density gives a faster riding speed.
It is (S)outh (E)ast with 0 wind speed, I said the Australian Government site, when I have seen it display N for 0 Wind on their website, it doesn't mean other sites do the same in their algorithms, and in a further check in their data, they have placed Calm instead of a wind direction.
"wind_dir": "CALM",
"wind_spd_kmh": 0,
"wind_spd_kt": 0
As I said to Calculate CdA (Coefficent of Drag Area metre2) in cycling aerodynamics you need windspeed as a parameter and another parameter is Air Density which requires another set of parameters, weather sites dont calculate that, I'm calculating that, I have to know what each value mean and I prefer to test CDA when there is 0 wind (image 3rdpart connectIQ app using aeropod sensor)
my JSON data as of a few minutes ago:
"2021-12-08T08:30:00Z", "feels_like": 6.7, "cloud": "Partly cloudy",
"air_temp": 13.2, "press": 1018.4, "rain": 1.0, "rel_hum": 63,
"wind_dir": "S", "wind_spd": 30, "air_density": 1.233016
JSON Weather data:
"air_temp": 13.2,
"dewpt": 6.3,
"press": 1018.4,
"press_msl": 1018.4,
"press_qnh": 1018.4,
"press_tend": "-",
"rain_trace": "1.0",
"rel_hum": 63,
"sea_state": "-",
"swell_dir_worded": "-",
"swell_height": null,
"swell_period": null,
"vis_km": "10",
"weather": "-",
"wind_dir": "S",
"wind_spd_kmh": 30,
"wind_spd_kt": 16