I performed experiment using wrf for a particular cyclone. I noted its position (latitude & longitude) for every 6hr using the central pressure. I have the observed tack data, both in excel.
I used Pythagoras formula to calculate the displacement but in degree and not in km.
Any kind of help is appreciated!
Thank you!
It can give you a path:
Algorithms for Advanced Tropical Cyclone Visualization
https://fsu.digital.flvc.org/islandora/object/fsu:169154/datastream/PDF/.../citation.pdf
You can use spherical trigonometry to convert two (lat, long) measurements to a distance:
https://en.wikipedia.org/wiki/Great-circle_distance
If one is interested in distance on a sphere, as Dean points out above, the great circle distance is the thing to use. The best source i know of, in this regard, is "Smart's spherical astronomy" which also deals with the complexity of dealing with the terrestrial atmosphere, that contributes to such things as the Sun's apparent oblateness, and "differential refraction", etc.
It really is the peak of analytic methods for these kinds of effects.
Thank you William Dean Pesnell I will give it a try and get back to you if I face difficulty.
You can find simply answer here https://gis.stackexchange.com/questions/142326/calculating-longitude-length-in-miles But it is interesting how you calculate the displacement error.
- Badges
- Science topic
- Similar topics
- Thermodynamics
- Pressure