EarthScope

Many fundamental aspects of continental structure and dynamics, including those responsible for earthquakes and volcanic eruptions, are not yet well understood. This is, in part, because of the diffi culty of piecing together the results of many focused, regional studies carried out by a single investigator or a small team of investigators.

EarthScope is funded by the

National Science Foundation

Produced by: the U.S. Army Environmental Center (USAEC) and the Topographic Engineering Center (TEC)

1. Objective
This guide provides an organized tool to help land managers take advantage of existing remote sensing technology.
2. Included in this guide
· what remote sensing can do
· keys to help users select appropriate imagery
· Sensor Fact Sheets - details on sensors and samples of imagery
· Statements of Work (SOW) samples & procurement assistance information

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PostGis
PostGIS adds support for geographic objects to the PostgreSQL object-relational database. In effect, PostGIS “spatially enables” the PostgreSQL server, allowing it to be used as a backend spatial database for geographic information systems (GIS), much like ESRI’s SDE or Oracle’s Spatial extension. PostGIS follows the OpenGIS “Simple Features Specification for SQL” and has been certified as compliant with the “Types and Functions”