MATLAB Answers

How much is (in kms) 1 degree of Longitude in the Earth?

조회 수: 54(최근 30일)
Leonardo Colavitti
Leonardo Colavitti 2017년 9월 5일
편집: José-Luis 2017년 9월 5일
Hi all, I am quiet new to Matlab and maybe my question sounds a bit trivial. I would like to know how many km corresponds 1 degree of LONGITUDE in the Earth (average radius: 6371 km, I am using the global model IASP91). I know that 1 degree in LATITUDE is about 111 km (k = (pi/180)*earth_radius) and that the corresponding longitude is a function of latitude. In particular, I suppose that near the equator the longitude in kms is about the cosine of the latitude at the same position. I would like to know if there is a more precise relationship or an existing function in Matlab which calculates that. Thank you so much for your help,
Leonardo

답변(1개)

José-Luis
José-Luis 2017년 9월 5일
편집: José-Luis 2017년 9월 5일
  댓글 수: 2
José-Luis
José-Luis 2017년 9월 5일
If you're happy with assuming a WGS-ellipsoid:
I don't get it. Your question says:
"How much is (in kms) 1 degree of Longitude in the Earth?"
And then in your comment:
"I don't have to compute any distance."
What gives?
Just calculate the distance along a pair of coordinates.

댓글을 달려면 로그인하십시오.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by