The purpose of the Surveying and Mapping Conference was to provide both technical information and a forum for discussion of surveying problems common to the engineer, surveyor, technician, and student. Without a growing fund of general knowledge, no profession can expect for long to survive. Conference papers contribute to the...
Generally, surveying means gathering and processing information about the physical earth. It’s the science of determining relative positions of existing points on the earth’s surface or of establishing such points. Methods range from aerial and satellite systems to conventional ground methods. Survey professionals use a variety of methods to produce...
Three special cases of the resection problem of surveying
are examined and solved. The coordinates of unknown points are
found with respect to given points in a rectangular coordinate system.
This is accomplished in the case of (a) one unknown point and three
given points (Snell's problem), (b) two unknown...
The effects of five data processing methods on the accuracy of
geostrophic computations are analyzed using hydrographic data collected
from a set of 24 hour triangular stations off the Oregon coast.
Sources of error are assessed by comparison with an available in
situ Salinity/Temperature/Depth record (STD) trace at a control...
Land use planning, zoning, and subdivisions are integrally tied
to the land resource. The need for a land surveyor and for statutes
which govern his operation when working in these areas is stressed.
A brief history of Vermont and Oregon, illustrating the role of land
surveys on settlement, is given....
A technique for solving efficiently the catenary problem encountered in surveying with tapes is presented. The theory of the catenary solution is outlined, and our technique is shown to solve correctly the catenary for all conditions. Analysis of error that compared the catenary correction to the more commonly used parabolic...
Unmanned aircraft systems (UAS), also known as drones, are an increasingly popular method of collecting surveying and mapping data. Two common drone-based mapping techniques are lidar and structure from motion (SfM) photogrammetry, and a frequently-heard (yet nearly impossible to answer) question is: “which is better?” The most common metric for...
CTD observations were made in the Code region near Pt. Arena on the northern California coast at 39° N during 14-27 July 1982. The observations in the Code region included three repeated sections along the Central Line, two mesoscale surveys of the shelf/slope region, and an alongshore section over the...
CTD observations were made in the CODE region between Pt. Arena (39°N) and Pt. Reyes (38°N) during 20-24 April 1982. The observations were made along seven sections: Irish Gulch, Arena, North, Code-North, Code Central, Code-2 Central and Ross Lines, and along the fifty fathom contour. Maximum sampling depth was 1000...