Table 3 - Great Circle Distance Calculation See the Web References section for online examples. The difference betwen the sphere and ellipsoid is important when working with large areas. Complex geodetic models based on ellipsoids are necessary for precise meaurement. Long range radio navigation requires precise distances. Loran-C requires range computations with better than 10 meter accuracy over 2,000 kilometers.
Geodetic measurements using satellites requires very accurate range computations.
Table 4 - Ellipsoidal Distance Calculation 4. Review and Study Questions 4.1. Essay and Short Answer Questions Describe the relationship between the cartesian coordinate system and the geographic grid. Convert 35.40 into degrees, minutes, and seconds. Explain why the length of a degree of longitude decreases as one approaches the poles.