Combined Survey

Combined Survey

 

a type of field topographic work in which the altimetric and planimetric data of the terrain are entered on a photographic map, as a rule in a single unit, simultaneously and immediately on location. In a combined survey, the relief is reproduced in contour lines, using a plane table, on the basis of altimetric transverses and a set of stakes (altimetric points). The contours and ground features are reproduced by decoding their aerial photographic image (when necessary, with additional surveying of individual objects). A combined survey is used instead of a basic (largely laboratory) stereo-topographic survey in making topographic maps of certain forested, built-up, or open flat regions and in making large-scale maps with particularly detailed representation of the relief in areas of land reclamation, mine workings, or planned mining and industrial construction.

References in periodicals archive ?
The Menzel Lejmat survey is an extension of an ongoing 2000-km2 Algerian 3-D project, making the combined survey one of the world's single largest land 3-D programs.
which combined survey data from online consumers, rigorous shopping-experience tests, and unbiased expert analysis to provide objective rankings of the leading e-commerce sites.
which combined survey data from online consumers, rigorous shopping-experience tests and unbiased expert analysis to provide objective rankings of the leading e-commerce sites.
Based on combined survey and user audit research, "ath Power designed this first-of-its-kind study to provide banks with direct customer feedback about their mobile banking offerings and to offer actionable insight into how they can leverage this channel for improved adoption, customer loyalty and revenue opportunities," said Mike McEvoy, Managing Director, ath Power.
HP combined survey and industry data to examine when companies could save with in-house vs.
Forrester PowerRankings combined survey data from online consumers, shopping-experience tests, and unbiased expert analysis to provide objective rankings of the leading eCommerce sites.
The combined survey reduced the total number of questions by over 70 percent in comparison with the previously separate surveys.
Our new combined survey will encourage greater participation by higher education institutions, providing a more complete and accurate picture of non-profit endowments," said John S.
Just as with the combined survey results from the three countries, the survey responses across business sectors and regions within the U.
In addition, Trimble and Spectra Precision will be demonstrating the synergies of its combined survey solutions-Integrated Surveying(TM).
The combined survey results for the four countries revealed that the top expected drivers of data centre capacity growth were virtualization (47 percent), big data (46 percent), and data centre consolidation (41 percent).
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