Seasonal sensitivity analysis of the St. Marys River loran-C time difference grid
By: the Analytic Sciences Corporation ; prepared for U.S. Department of Transportation, United States Coast Guard, Office of Research and Development.
Contributors: United States. Coast Guard. Office of Research and Development.
Publisher: The Office; National Technical Information Service [distributor
Published: 1978
Place of publication: Washington, D.C; Springfield, Va
Language: eng
Subjects: Loran.; Aids to navigation -- Saint Mary's River (Mich. and Ont.)
Notes: Cover title.

"Interim report."

"June 1978."

Contract no. DOT-CG-81-77-1785--1st prelim. p.

"Report no. CG-D-33-80."

Includes bibliographical references.