Least Squares for Mapping Polynomials

Photogrammetry means To Measure With Light. As with any type of measurement there are of course a series of components that all contain some error, many of which are unknown at the time of observation. Images are recorded in the image space, which is to say that units of length in the x and y direction are … Continue reading Least Squares for Mapping Polynomials

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Sample Lesson Plan: Intro to Satellite Altimetry

REQUIRED READING Ch. 5.2.7 Satellite Alitmetry - Torge, Wolfgang (2001) Geodesy. De Gruyter. Berlin, New York Overview of Satellite Altimetry Satellite Gravimetry v. Altimetry for Geoid Determination OVERVIEW What is Satellite Altimetry? Active remote sensing Missions Application of Satellite Altimetry Mean Sea Surface Geoid Determination Dynamic Ocean Topography OBJECTIVES Understand the basic principles of satellite … Continue reading Sample Lesson Plan: Intro to Satellite Altimetry

Satellite Gravimetry v. Altimetry for Geoid Determination

The question posed in this post is; whether it is better to use satellite gravimetry or satellite altimetry to determine a marine geoid? Satellite Gravimetry Major Missions: GOCE (ESA), GRACE (NASA) How it works: GOCE uses a gradiometer which is comprised of six accelerometers that measure differences in the gravity field. GRACE measures gravity by … Continue reading Satellite Gravimetry v. Altimetry for Geoid Determination