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06/08/2009 at 07:25AM PDT, ID: 24472227
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9.1

Converting distance in latitude and longitude to miles

Asked by andieje in GIS & GPS Programming

Hi

I am looking geographically at a very small area of the earth (the UK) so I am hoping it might be possible to consider this small bit of land as 'flat' for purposes of calculation.

I have a rectangular region with these coordinates

Left: -8.19
Top: 60.84
Right: 1.77
Bottom: 49.16

I used some software to calculate the width of this rectangle and the answer I got was approximately 397 miles. The widht in degress is 11.68. Does this mean that I can say that 1 mile = 0.029 degrees (11.68/397) and one degree is about 34 miles? So if someone moved from 60.84 degrees latitude due south to (60.84 - 0.29) degrees they have moved a mile?

many thanks
 
 
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[+][-]06/08/09 07:49 AM, ID: 24572664

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Zone: GIS & GPS Programming
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Solution Provided By: HainKurt
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Solution Grade: A
 
 
[+][-]06/08/09 07:53 AM, ID: 24572716

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[+][-]06/09/09 05:17 AM, ID: 24580276

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20091028-EE-VQP-88 - Hierarchy / EE_QW_3_20080625