Intro to Geometric Geodesy

Includes surveying, mapping, geodesy, photogrammetry, remote sensing, and information science.

encompasses the 3d geometrical elements of the earth and the location of points in that model

Relates to earth's geophysical internal constitution to its corresponding external gravity field

Deals with satellites orbits, tracking existing satellites, and predicting the trajectory of a given missile, satellite, or spacecraft.

Has been used extensively to compute positions and directions on the earth based on optical observation of stars in the sky,

1. Determining the size and shape of the earth
2. Describing the gravity field
3. Providing a means of locating points on or near the surface of the earth.

what we are doing is mapping a certain parcel of the surface of the earth

Referencing and reference systems for mapping

A defined surface in which we refer all our surveys or mapping acitivities

it is where we survey

the equipotential surface or the mean sea level

Is the ellipsoid

The process of gathering precise information about the Earth’s shape, size, gravity field, and positions of points on its surface

Positional data, distance & direction data, gravity data, astronomical data, and satellite data

A classical method of geodesy that measures angles in networks of triangles

A classical method of geodesy that measures distances using electronic distance measurement instruments

To measure height differences between points

To determine latitude, longitude, and azimuth by observing stars and the Sun

A modern method that uses satellites to determine precise positions

A technique that measures the distance to satellites using laser pulses

Uses radio telescopes to observe quasars and measure Earth orientation and positions

A satellite geodetic technique that measures satellite positions using ground-based beacons

Ground deformation using radar images from satellites

Planning, field measurement, data processing, adjustment, and storage/sharing

The method of least squares

Mapping, engineering projects, GPS navigation, tectonic monitoring, and sea-level measurement