Accession Number:

ADA056007

Title:

Test of Map-Read Magnetic Declination Accuracy.

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY ENGINEER TOPOGRAPHIC LABS FORT BELVOIR VA

Personal Author(s):

• Schmeidel,Glenn W.

Report Date:

1978-05-01

Pagination or Media Count:

29.0

Abstract:

This report covers a test of how accurately a map-referenced magnetic declination represents the actual magnetic declination found by measuring true north and magnetic north at various points selected at random within the mapped area. The undeveloped area in Quantico, Virginia was investigated and found to have individual variations as great as 23 mils, with a 1-sigma standard deviation of 8 mils from the map-read value. Author

Descriptors:

• *MAP READING
• MAGNETIC FIELDS
• ACCURACY
• POSITION FINDING
• ARMY CORPS OF ENGINEERS
• MAPPING
• COMPASSES
• AZIMUTH
• TEST FACILITIES

Subject Categories:

• Cartography and Aerial Photography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE