The State of Qatar's national orthoimage database, comprising 10-centimeter pixel resolution imagery for all urban areas compiled from 1:4,000-scale aerial photography and one-meter pixel imagery for the whole country compiled from 1:54,000-scale aerial photography, is a major component of the national topographic database. This paper looks into core aspects of this computer manipulated imagery in true map projection--organization, quality control, accuracy, resampling, replication, cataloging, compression, and storage--including its wide usage.
Qassim Mohammed Ali Al Ghanim
Centre for GIS, State of Qatar
The Head, Centre for GIS, PO Box 22088
Doha, State of Qatar, Arabian Gulf.
Doha, 22088
State of Qatar
Telephone: 974-337556
Fax: 974-444036