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Soil and topography surveying

A soil and geographic area technology, applied in the field of soil and terrain survey and mapping, can solve problems such as errors, increase flexibility, improve survey efficiency, and reduce on-site detection time

Inactive Publication Date: 2005-04-06
SOIL & TOPOGRAPHY INFORMATION LLC
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This limited vertical soil information leads to errors when attempting to model the spatial distribution and volume of soil properties across the territory

Method used

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  • Soil and topography surveying
  • Soil and topography surveying
  • Soil and topography surveying

Examples

Experimental program
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Effect test

Embodiment Construction

[0060] Referring first to FIG. 1, soil topology information is displayed in an aerial photograph 10 with superimposed closed boundaries or polygons 12, each enclosing a geographic area 14 or "soil map unit" marked with a number corresponding to the A reference profile of specific subsurface material properties as determined by the USDA-NRCS soil survey for soil system description. In this demo, which covers approximately 1000 acres (4.0 square kilometers), there are several polygons 12 each defining a numbered soil map cell 14 . Because the numerical designation 15 of a soil map unit corresponds to a soil type and profile of a particular characteristic, many soil map units at the site have the same designation. As shown, these polygons are irregularly shaped, as determined by the local topology and coarse sampling at survey time.

[0061] figure 2A probe vehicle 16 suitable for the collection of live subsurface data and other available data for the site is illustrated. The ...

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Abstract

Methods of characterizing subsurface conditions in a selected geographic region (14) previously associated as a whole with a specific subsurface material characteristic reference profile such as from a USDA-NRCS soil survey. The method includes deploying a sensing tool (18,20) at selected positions (44) within the geographic region to determine a depth-referenced subsurface material characteristic such as soil type or strata, comparing the determined subsurface material characteristic to the subsurface material characteristic reference profile associated with the geographic region (14) to determine a correlation between the subsurface material characteristic reference profile and the depth-referenced subsurface material characteristic, and then deciding whether to deploy the tool at another position (44), and at what optimum position to deploy the tool, by considering the correlation.

Description

technical field [0001] This invention relates to methods of soil and topographic surveying and mapping, and more particularly to directing soil sampling and detector placement in areas where existing survey data of various types are available. Background technique [0002] In the United States, soil information is available to the public in the form of aerial photographs superimposed with closed boundaries, or polygons, respectively enclosing a geographical area or "soil map unit" marked with a number corresponding to a particular subsurface material Property reference profile, as determined in USDA-NRCS soil surveys, as soil system description. Such soil surveys are currently available for more than ninety percent of the US geographic areas; and other types of soil characteristic maps are also available for the US and other geographic areas. In any given area, there may be several polygons, each enclosing a numbered soil map cell. On average, there will be about 5.5 polyg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/38G01V11/00G05D11/00
CPCG01V11/00A01C21/007
Inventor 丹尼尔·J·鲁尼马雷克·杜德卡马克·A·切恩
Owner SOIL & TOPOGRAPHY INFORMATION LLC
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