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Determining Distance from Latitude and Longitude
Is there a formula for deriving the great circle distance between two points on the earth's surface when you have their latitude and longitude? The format I have the latitude/longitude in is: Latitude Longitude 017/025S 145/030W 026/045S 141/000E 031/008N 033/048E 036/050N 008/000E -- morchard ------------------------------------------------------------------------ morchard's Profile: http://www.excelforum.com/member.php...o&userid=24761 View this thread: http://www.excelforum.com/showthread...hreadid=489407 |
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#2
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Determining Distance from Latitude and Longitude
http://www.cpearson.com/excel/latlong.htm
-- Kind regards, Niek Otten "morchard" wrote in message ... Is there a formula for deriving the great circle distance between two points on the earth's surface when you have their latitude and longitude? The format I have the latitude/longitude in is: Latitude Longitude 017/025S 145/030W 026/045S 141/000E 031/008N 033/048E 036/050N 008/000E -- morchard ------------------------------------------------------------------------ morchard's Profile: http://www.excelforum.com/member.php...o&userid=24761 View this thread: http://www.excelforum.com/showthread...hreadid=489407 |
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#3
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Determining Distance from Latitude and Longitude
Take a look at Chip Pearson's notes:
http://cpearson.com/excel/latlong.htm morchard wrote: Is there a formula for deriving the great circle distance between two points on the earth's surface when you have their latitude and longitude? The format I have the latitude/longitude in is: Latitude Longitude 017/025S 145/030W 026/045S 141/000E 031/008N 033/048E 036/050N 008/000E -- morchard ------------------------------------------------------------------------ morchard's Profile: http://www.excelforum.com/member.php...o&userid=24761 View this thread: http://www.excelforum.com/showthread...hreadid=489407 -- Dave Peterson |
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#4
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Determining Distance from Latitude and Longitude
I have been racking my brain triple checking my equation, and it's not
computing correctly. I have: =($M$1*ACOS(COS(I1)*COS(K5)))+(SIN(I1)*SIN(K5)*COS (J1-L5)) M1 is the earth radius All in radians I1: lat1 K5: lat2 J1: long1 L5: long2 For this example, city 1: 0.74933823, 1.56014357 city 2: 0.750862496, 1.560638039 And it gives me 3985 as the answer. It should be 14.2. Help please!! Thanks "Dave Peterson" wrote: Take a look at Chip Pearson's notes: http://cpearson.com/excel/latlong.htm morchard wrote: Is there a formula for deriving the great circle distance between two points on the earth's surface when you have their latitude and longitude? The format I have the latitude/longitude in is: Latitude Longitude 017/025S 145/030W 026/045S 141/000E 031/008N 033/048E 036/050N 008/000E -- morchard ------------------------------------------------------------------------ morchard's Profile: http://www.excelforum.com/member.php...o&userid=24761 View this thread: http://www.excelforum.com/showthread...hreadid=489407 -- Dave Peterson |
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