Image Error and Photogrammetric Requirements
A major factor limiting photogrammetric accuracy is the effect of residual errors that displace the photographic image from its ideal (projective) position. Sources of image error and...

Use of Remote Sensing for Mapping Wetlands
This paper summarizes contemporary remote sensing methodology and its application in wetlands. Using color, color infrared, black-and-white, and black-and-white infrared photography, multiband...

Control Densification by Analytic Photogrammetry
Numerical methods in photogrammetry began to receive wide-spread attention in the early fifties with the development of the large digital computers. The Worldwide Satellite Triangulation...

Use of Satellite Data in Urban Hydrologic Models
The study investigates the use of computer-aided analysis of LANDSAT multispectral data in estimating percentage of imperviousness and associated land uses needed in urban hydrologic modeling....

Improved Design of Highway Culvert
New culvert design procedures, incorporating improved inlet concepts, make significant construction savings possible through hydrauically efficient use of the culvert barrel. Two representative...

Surface Currents in the Arctic and Sub-Arctic Seas as Deduced from Satellite Photographs of Ice Floes

Satellite Measurements of Turbidity of Coastal Waters

Orthophotoquads for Arizona Land-Use Mapping and Planning
After initial evaluation of National Aeronautics and Space Administration (NASA) high altitude aerial photography in 1971, the interest in application of high altitude coverage of Arizona...

Aerotriangulation Precision Attainable for Highway Photogrammetry
The magnitude of the standard error, 0.00012 times flight height for large-scale photography was empirically determined by analyzing data from 137 stereo models in 22 flights at heights...

Surveying and Mapping from Orbital Platforms
The methods of triangulation and photogrammetric mappings have been successfully applied to the surveying and mapping of both the moon and the earth. The accuracy of lunar phototriangulation...

Photogrammetric Control Extension for Route Design
It is of utmost importance to select such a method and instrument for aerial triangulation which provides the required accuracy in a most economical way. Nine strips of wide and super-wide...

Clarks Fork Yellowstone River Remote Sensing Study
The Clarks Fork Yellowstone River of Montana and Wyoming, known for its historical sediment and siltation problems, is investigated to locate points at which sediment loads enter the river...

Data Collection Techniques — Time Lapse Photography

Measurement of Dye Concentrations by Photography
A method of measuring concentrations of solutions of dye for dispersion studies in laboratory channels is described. The method uses black and white photography, followed by analysis of...

Modified Methods in Numerical Radial Triangulation
Two new modifications in numerical radial triangulation for extending horizontal control are presented. The first method, called the Method of Independent Stereopairs, involves computation...

Photographic Study of Water Column Separation
The phenomenon of water column separation during hydraulic transient conditions in pipelines having small pressures at normal running conditions has been reported by a number of authors....

A Model to Predict Mean Annual Watershed Discharge
A method was developed for the estimation of long term discharge characteristics of small watersheds. It was shown that, besides the annual precipitation and the annual mean temperature,...

Water Features on Topographic Maps
Topographic maps are a prime source of information for planning the improvement of man's environment with respect to water. In order to utilize the tremendous amount of hydrologic...

Photogrammetry Aids Solution of Environment Problems
Photogrammetrists are engaged in the recognition, location, and description of environmental problems and the surveillance of completed environmental projects. Various types of aerial...

Applications of Extraterrestrial Surveying and Mapping
Extraterrestrial surveying and mapping is part of the profession of civil engineering. The ASCE Committee on Extraterrestrial Surveying and Mapping is preparing articles and bibliographies,...

 

 

 

 

Return to search