Digital Elevation Models Overview

Apogee has experience and expertise to provide you with a wide range of Digital Elevation Models for your applications (geological survey, infrastructures studies, communication coverage, cartography, imagery orthorectification, mission planning, emergency management).

Source Data	Z Accuracy	Post Spacing	Comments
IFSAR	50cm, 1m, 3m	5m	» Archive available » New acquisition 5000 sq km minimum
EROS B	3.5m, 2m	2.5m	» Suitable for small area » New acquisition » Archive available
PRISM	2.5m	7.5m	» Suitable for large area » Archive only
ASTER	10–15m	30m	» Suitable for large area » Archive only
SRTM	10–15m	90m	» Worldwide » Mosaic and format conversion available