Title: An empirical assessment of refraction error in leveling as a function of survey order and environment : an analysis of the results of three North Anerican field experiments designed to measure the systematic component of the atmospheric refractiob error in leveling /
Authors: Castle, Robert O.; Mark, Robert K.; Shaw, Roger H.; Mark, Robert K.,; Shaw, Roger H.,
Publisher: U.S. Geological Survey,
Year: 1994
Subjects: Leveling.; Refraction.; Surveying