Geophysical Survey

Gravity Line Layout

Gravity Line Layout

Introduction

The Team’s hard work paid off and we won the contract on a large gravity station survey. Now we actually have to pull it off. I’m the “computer guy” on the team and what they usually need early on is a dataset of GPS points covering the area of interest, and an estimate of the number of stations, which translates into number of survey days, and cost to the Client.

Geophysical Surveys - Introduction

Geophysical Surveys - Introduction

Introduction

Geophysics has to do with physics of the earth. There are academic reasons for studying the shape and behavior of the earth, as well as commercial ones. The US Geological Survey USGS, and the Geological Survey of Canada GSC, as well as mapping agencies related to both of them are involved in geophysical surveys. A lot of data is available from these agencies for use by the public. We shall see later how to obtain gravity network control points and GPS survey control points from the GSC. Similar data is available in many other countries.