Journal of Surveying Engineering: Recent submissions
Now showing items 621-640 of 1001
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Global Congruency Test Methods for GPS Networks
(American Society of Civil Engineers, 2003)The determination of the deformation of a geodetic network is an objective of the analysis of many geodetic deformation measurements. The deformation analysis is a step-by-step procedure, which begins with the global ... -
Dynamic Model for Monitoring Landslides with Emphasis on Underground Water in Trabzon Province, Northeastern Turkey
(American Society of Civil Engineers, 2003)The aim of this study is to form a dynamic deformation model for landslides. Static and kinematic models used in practice in determining movements do not deal with the mechanical characteristics of the object and the ... -
Delaunay Triangulation Algorithms Useful for Multibeam Echosounding
(American Society of Civil Engineers, 2003)The Delaunay triangulation is a widely appreciated and investigated mathematical model for topographic surface representation. After a brief theoretical description, six possible basic algorithms to construct a Delaunay ... -
Discussion of “Analytical Solution for the Amplitude Ratio Method for Determining Mean High Water in Tidal Regions” by Joshua Greenfeld
(American Society of Civil Engineers, 2003) -
Effects of Errors in Coordinates on Transformation Parameters
(American Society of Civil Engineers, 2003)In the stage of transformation of global positioning system coordinates to a national coordinate system, the transformation parameters computed show local changes depending upon the selection of common points used in the ... -
Detection of Wind-Induced Response by Wavelet Transformed GPS Solutions
(American Society of Civil Engineers, 2003)Global positioning system (GPS) solutions offer direct measurements for the dynamic monitoring of long-span and tall civil structures. Timely and correct interpretation of the solutions is essential to improve monitoring ... -
Study on Accuracy of 1-Degree DEM Versus Topographic Complexity Using GIS Zonal Analysis
(American Society of Civil Engineers, 2003)Zonal analysis in geographic information systems is a useful and convenient tool to study the accuracy of the digital elevation model (DEM) in terms of topographic complexity, which is defined in this paper as the change ... -
Effect of Temporal Physical Correlation on Accuracy Estimation in GPS Relative Positioning
(American Society of Civil Engineers, 2003)Generally, in global positioning system (GPS) carrier phase relative positioning, the mathematical model does not describe the observations completely. This is mainly due to the lack of information about the physical ... -
Efficient Least Squares Coordinate Transformation for an Arbitrary Number of Parameters
(American Society of Civil Engineers, 2003)By means of constructing equivalent linear problems, Greenfeld (1997) derived closed-form formulas for four- and six-parameter least squares coordinate transformations between two planar systems, so that users can obtain ... -
Formulation of L1 Norm Minimization in Gauss-Markov Models
(American Society of Civil Engineers, 2003)norm minimization adjustment is a technique to detect outlier observations in geodetic networks. The usual method for implementation of -
Estimating Earthwork Volumes of Curved Roadways: Simulation Model
(American Society of Civil Engineers, 2003)Earthwork volumes represent the basis on which contractors are paid for highway construction. The earthwork volumes between successive roadway stations are also used in determining the economic distribution of earthwork. ... -
Digital Elevation Model Based Volume Calculations Using Topographical Data
(American Society of Civil Engineers, 2003)Volume calculations based on a digital elevation model (DEM) are widely used instead of traditional handmade cross-sectioning methods on contour maps. Cross sections can be derived from a DEM performed in a computer, when ... -
Generation of Digital Orthophotos from IKONOS Satellite Images
(American Society of Civil Engineers, 2003)Due to its high spatial resolution, IKONOS imagery has the highest potential for large-scale topographic mapping of the resource satellites currently available. The orthorectification of IKONOS images thus becomes an ... -
Monitoring Crustal Movements in West Anatolia by Precision Leveling
(American Society of Civil Engineers, 2003)In a previous study, the author investigated the best suited static and kinematic models for deformation analysis. In that study, the best results were obtained with the Kalman-filtering technique for the kinematic model. ... -
Correlation Survey for Shaft Deepening in Digwadih Underground Coal Mine
(American Society of Civil Engineers, 2003)While deepening a shaft of an underground mine, it is essential to maintain the verticality of the shaft for the smooth working of cages. The position of the center of the shaft should be known throughout the shaft and ... -
Study of Earth Tides Using Quartz Tiltmeter
(American Society of Civil Engineers, 2003)A high-resolution quartz tiltmeter was developed for measurement of small movements. It is used to record earth deformation during many months. This deformation is due particularly to earth tides. The fast Fourier transform ... -
Role of Surveyors under ISO 9000 in the Construction Industry
(American Society of Civil Engineers, 2002)This paper introduces the ISO 9000:2000 Standards and the role of engineering surveyors under the quality assurance and management standards of the construction industry. -
Surveying and Mapping: History, Current Status, and Future Projections
(American Society of Civil Engineers, 2002)Since the founding of ASCE in 1852, remarkable changes have occurred in all areas of civil engineering practice, including surveying and mapping. Instruments employed in surveying and mapping in the United States have ... -
Variance Component Estimation and Precise GPS Positioning: Case Study
(American Society of Civil Engineers, 2003)The underlying motivation of variance component estimation (VCE) is to construct an adequate variance-covariance (VC) matrix for the processing of global positioning system (GPS) code and phase data. Prior to developing a ... -
Georeferencing Aerial Photography: Beginners Approach
(American Society of Civil Engineers, 2002)Georeferencing aerial photographs has always been a challenge. Computer technology makes it possible to georeference digital aerial photographs without an in-depth understanding of the underlying theory. For students of ...