How to calculate Wind direction from uwind and vwind?
How to calculate wind direction from uwind and vwind?
if uwind and vwind are -1.82 , -3.18 respectively
meteorology oceanography
asked 4 hours ago
ThehalfarisedPheonix
61
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How to calculate wind direction from uwind and vwind?
if uwind and vwind are -1.82 , -3.18 respectively
meteorology oceanography
asked 4 hours ago
ThehalfarisedPheonix
61
New contributor
ThehalfarisedPheonix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
How to calculate wind direction from uwind and vwind?
if uwind and vwind are -1.82 , -3.18 respectively
meteorology oceanography
asked 4 hours ago
ThehalfarisedPheonix
61
New contributor
ThehalfarisedPheonix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
How to calculate wind direction from uwind and vwind?
if uwind and vwind are -1.82 , -3.18 respectively
meteorology oceanography
meteorology oceanography
asked 4 hours ago
ThehalfarisedPheonix
61
New contributor
ThehalfarisedPheonix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
ThehalfarisedPheonix
61
New contributor
ThehalfarisedPheonix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
ThehalfarisedPheonix
61
New contributor
ThehalfarisedPheonix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
ThehalfarisedPheonix
61
asked 4 hours ago
ThehalfarisedPheonix
61
61
New contributor
ThehalfarisedPheonix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
ThehalfarisedPheonix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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1 Answer
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The base formula for the direction $theta$ is
$theta=atan2left(frac{text{uwind}}{text{vwind}}right)$
Where $atan2$ is the four quadrant inverse tangent. Note that if you used the normal inverse tangent your results will be all collapsed to the first quadrant (0° to 90°). Also note that depending on the platform the result can be in radians or degrees (most often in radians, some platforms have a function atan2d that return values in degrees).
If you get a negative value (which is the same direction but measured counterclockwise), you have to add 360° (or $2pi$ radians).
This will give you the direction the wind is coming from. For the direction is going to, you have to add/substract 180° (or $pi$ radians).
For the values you provide, the answer would be 210°.
answered 3 hours ago
Camilo Rada
7,98812563
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
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active
oldest
votes
The base formula for the direction $theta$ is
$theta=atan2left(frac{text{uwind}}{text{vwind}}right)$
Where $atan2$ is the four quadrant inverse tangent. Note that if you used the normal inverse tangent your results will be all collapsed to the first quadrant (0° to 90°). Also note that depending on the platform the result can be in radians or degrees (most often in radians, some platforms have a function atan2d that return values in degrees).
If you get a negative value (which is the same direction but measured counterclockwise), you have to add 360° (or $2pi$ radians).
This will give you the direction the wind is coming from. For the direction is going to, you have to add/substract 180° (or $pi$ radians).
For the values you provide, the answer would be 210°.
answered 3 hours ago
Camilo Rada
7,98812563
add a comment |
The base formula for the direction $theta$ is
$theta=atan2left(frac{text{uwind}}{text{vwind}}right)$
Where $atan2$ is the four quadrant inverse tangent. Note that if you used the normal inverse tangent your results will be all collapsed to the first quadrant (0° to 90°). Also note that depending on the platform the result can be in radians or degrees (most often in radians, some platforms have a function atan2d that return values in degrees).
If you get a negative value (which is the same direction but measured counterclockwise), you have to add 360° (or $2pi$ radians).
This will give you the direction the wind is coming from. For the direction is going to, you have to add/substract 180° (or $pi$ radians).
For the values you provide, the answer would be 210°.
answered 3 hours ago
Camilo Rada
7,98812563
add a comment |
The base formula for the direction $theta$ is
$theta=atan2left(frac{text{uwind}}{text{vwind}}right)$
Where $atan2$ is the four quadrant inverse tangent. Note that if you used the normal inverse tangent your results will be all collapsed to the first quadrant (0° to 90°). Also note that depending on the platform the result can be in radians or degrees (most often in radians, some platforms have a function atan2d that return values in degrees).
If you get a negative value (which is the same direction but measured counterclockwise), you have to add 360° (or $2pi$ radians).
This will give you the direction the wind is coming from. For the direction is going to, you have to add/substract 180° (or $pi$ radians).
For the values you provide, the answer would be 210°.
answered 3 hours ago
Camilo Rada
7,98812563
The base formula for the direction $theta$ is
$theta=atan2left(frac{text{uwind}}{text{vwind}}right)$
Where $atan2$ is the four quadrant inverse tangent. Note that if you used the normal inverse tangent your results will be all collapsed to the first quadrant (0° to 90°). Also note that depending on the platform the result can be in radians or degrees (most often in radians, some platforms have a function atan2d that return values in degrees).
If you get a negative value (which is the same direction but measured counterclockwise), you have to add 360° (or $2pi$ radians).
This will give you the direction the wind is coming from. For the direction is going to, you have to add/substract 180° (or $pi$ radians).
For the values you provide, the answer would be 210°.
answered 3 hours ago
Camilo Rada
7,98812563
edited 3 hours ago
answered 3 hours ago
Camilo Rada
7,98812563
answered 3 hours ago
Camilo Rada
7,98812563
answered 3 hours ago
Camilo Rada
7,98812563
7,98812563
add a comment |
add a comment |
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