Plan a UXO Survey

Use the Plan a UXO Survey option (UCEPLAN GX) to establish the boundary and parameters of the survey. Database and planning map for each survey grid will be generated.

Plan a UXO Survey dialog options

Distance units	Fixed parameter showing the distance units.
Geographic location (1)	A Regional Geographic name for the project. Script Parameter: UCEPLAN. GEOLOC1
Geographic location (2)	A Local Geographic name files for the project. Script Parameter: UCEPLAN. GEOLOC2
Database name prefix	Prefix to be added to the name of database and map files for each survey grid. Script Parameter: UCEPLAN. PREFIX
Sector prefix	This entry is prefixed to the indexed grid names and allows the inclusion of multiple sectors into the project. Script Parameter: UCEPLAN. SECTOR
Instrument	Choose the instrument used for the survey from a drop down list of supported instruments. Script Parameter: UCEPLAN. INST
Calculate planned databases?	Select Yes or No to calculate the projected databases. Depending on the size of the survey, the calculation of the projected databases may be time consuming as each grid is masked to the survey boundaries of the study area. However if the total projected mileage calculation is required at the planning stage, this option should be turned on. Script Parameter: UCEPLAN. MAKEGDBS
Create planned maps	Select Yes or No to create the planned maps. Depending on the size of the survey, the creation of the maps may be time consuming. Script Parameter: UCEPLAN. MAKEGDBS
Define survey boundary via	The survey boundaries can be specified through a Geosoft Polygon file, an ArcView shape file, DXF file, or DGN micro station file. Alternatively you may select No boundary, and you will be prompted for the lower left corner of the survey as well as the number of grids in each direction. The grids may also be specified directly through Predefined grids files. This is the recommended approach for randomly spread grids in the project area. The supported formats are TXT, CSV, ArcView Shape, DXF, and excel. The last option is the Meandering path option where the area is calculated so as to include the bounding rectangle of the meandering path coverage. Script Parameter: UCEPLAN.FILE
Cultural Mask File	Using the browse button, locate a cultural mask file (*.PLY). Script Parameter: UCEPLAN.CULTMASKFILE
[Next>]	To advance to the next dialog in the Plan a UXO Survey wizard.

Plan a UXO Survey: Grid Specification

Survey direction (cw angle from true north)	Azimuth of the grid Y-axis, upward from the origin. In degree, clockwise from the True north. Script Parameter: UCEPLAN. GNORTH
Grid X dimension	Width of the survey grid. Script Parameter: UCEPLAN. SIZEX
Grid Y dimension	Length of the survey grid. Script Parameter: UCEPLAN. SIZEY
[Next>]	Proceed to the next appropriate dialog.

Plan a UXO Survey: Grid Direction

Survey direction (cw angle from true north)

Azimuth of the survey direction. In degree, clockwise from the True north.

Script Parameter: UCEPLAN. GNORTH

[Next>]

Proceed to the next appropriate dialog.

Plan a UXO Survey: Survey Geometry

Line spacing	If the projected databases are to be calculated, specify the distance between survey lines. Script Parameter: UCEPLAN. LINESEP
Sample spacing	Distance between samples. Script Parameter: UCEPLAN. DATASEP
Line azimuth (cw from true north)	Azimuth of the survey lines. In degree, clockwise from the True north. Script Parameter: UCEPLAN. AZIMUTH
First line number	Line number located at the bottom left of the survey. Script Parameter: UCEPLAN. LINE1
Line number increment	Line number increment. Script Parameter: UCEPLAN. LINEINC
[Update Spacing]	This will set the appropriate "line spacing" and "sample spacing" for the selected instrument.
[Next>]	Proceed to the next appropriate dialog.

Create Survey Plan

Number of grids in X direction	Number of grids in X direction. Script Parameter: UCEPLAN. GRIDX
Number of grids in Y direction	Number of grids in Y direction. Script Parameter: UCEPLAN. GRIDY
X origin	X coordinate of origin. Script Parameter: UCEPLAN. XORIGIN
Y origin	Y coordinates of origin. Script Parameter: UCEPLAN. YORIGIN
[Preview]	Preview the locations of the survey grids generated by these parameters.
[OK]	Proceeds to generate the survey plan and the corresponding theoretical path databases.

Create Survey from PLY /SHAPE /DXF /Microstation DGN /Meandering Path File

"Polygon"/Shape file	Depending on the format of the input survey boundary file (Polygon, ArcView shape, DXF, DGN, Meandering path), select the file in the format provided. Script Parameter: UCEPLAN. PLYFILE
X origin	X coordinate of origin. If X/Y origin is left blank, it sets the origin to the lower left corner of the project bounding rectangle. The bounding rectangle is oriented along the direction of the survey, as the Origin button has been selected. Script Parameter: UCEPLAN. XORIGIN
Y origin	Y coordinates of origin. If X/Y origin is left blank, it sets the origin to the lower left corner of the project bounding rectangle. The bounding rectangle is oriented along the direction of the survey, as the Origin button has been selected. Script Parameter: UCEPLAN. YORIGIN
[Preview]	Preview the locations of the survey grids with the polygon generated by these parameters.
[OK]	Proceeds to generate the survey plan and the corresponding theoretical path databases.

Create Survey from Predefined Grid File

Predefined grid file	Choose Predefined grid file, supported formats are project CSV, TXT, ArcView Shape, DXF, Excel. All formats are converted to the project index file format for further processing Script Parameter: UCEPLAN. GPSFILE
Format (for csv/txt)	Applies only to CSV and TXT format files selected above. Define the format as Survey Index file, or Area,x0,y0,x1,y1,x2,y2,x3,y3 file. Note that the grids corners should be provided in the CCW direction with the lower left corner specified first. Script Parameter: UCEPLAN. FORMAT
[Preview]	Preview the locations of the survey grids with the polygon generated by these parameters.
[OK]	Proceeds to generate the survey layout and depending on the option of the first dialog, plan and corresponding theoretical path databases.

Application Notes

The purpose of this GX is to pre-design a geophysical survey. Part of the setup is to set the size, azimuth direction and number of the survey grids. Most ordnance surveys are laid out in square or rectangular grids of 100 x 100 feet in diameter. When a bounding polygon exists, the survey will automatically generate sufficient grids to cover the area enclosed by the polygon(s). Up to 16 separate polygons can be used in the survey planning.

The parameters entered are based on particularities and needs of the survey.

The Database name prefix is added to the name of database and map files created for each survey grid. This naming convention simplifies the need for organization of files within a project.

The sector prefix is added to the survey grid names. If left blank, the order of the grids will be 1,2,3 and A,B,C.

A planned map is created for each individual grid of the survey area. A user can choose not to display all of them when the GX is first run if working with many grids.

The survey boundary information can be brought in from various sources. It can be set manually through the "Create survey plan" dialog whereas the user specifies the number of grids in each direction and the size of the standard grid. It can also be brought in with Geosoft polygon file, ArcView shape file, DXF file, DGN file, Meandering Path file, or specified directly through a Predefined grids file. Note that since each grid is defined on a record the grids do not need to be adjacent to one another. The supported Predefined grid file formats are, Area,x0,y0,x1,y1,x2,y2,x3,y3 and Survey Index file. Note that when compiling the survey boundary file manually, the grid corners should be entered in the CCW direction with the lower left corner specified first.

When using an Excel XLS file as the "Predefined grid", the first row includes the title for each column, which reads: "Grid", "ll_x", "ll_y", "lr_x", "lr_y", "ur_x", "ur_y", "ul_x", and "ul_y", respectively. "Grid" is the area name, and the other columns are the X and Y coordinates of the four corners of the area (ll - lower-left, lr - lower-right, ur - upper-right, ul - upper-left). In case of an ArcView shape file, the SHP file should contain either "GRIDID" or "ROW" and "COL" attributes, as they are used to generate the area name. If "GRIDID" attribute exists, "ROW" and "COL" attributes will be ignored.

Line spacing and sample spacing can reflect the type of instrument used on the survey as well as the size of ordnance searched for. A typical sampling interval = 5 - 25 cm and a typical line spacing = 0.5 - 1.0 m. Once an instrument is indicated, select the [Update Spacing] button for this will set the appropriate "line spacing" and "sample spacing" for the particular instrument. Alternatively, you can manually enter values to reflect your needs.

The survey direction (cw angle from true north) may not parallel the direction of the grid lines. This parameter enables the user to set in which direction the survey will follow.

The [Origin] button will generate the origin of the coordinate system, which will be the lower left corner of the bounding rectangle of the polygon in the grid direction. Or, a user can enter the coordinates manually. When selecting the origin button, the boundary will end up within the grids with its edges adjacent to the outermost grid line.

By selecting the Preview button, a user will be able to preview the Survey_Index map with the outline of the grids and boundary. If the layout is incorrect, the parameters can be modified and the map regenerated. Once the new parameters are set, selecting the Preview button again will refresh the Survey_Index map. The legend of the index map provides self explanatory useful information. The acreage is calculated as the total area of the survey. If the user has specified any coinciding mask areas, they are taken into account when calculating the acreage and the total line kilometers.

Again, maps and projected path databases are generated for each grid with the proposed coverage. The legend of each map identifies the survey grid, displays the geographic coordinates as well as the project description.

Two summary reports are created and put in your project directory. The first, Survey_Summary.txt (ground coordinates such as UTM) and the second, Survey_Summary_local.txt (local reference system). They provide the total line kms and total number of lines and grids covering the survey. Please note that if the user has requested to calculate the planned databases the total number of lines reflects the actual total number of lines for all the grids. Otherwise the number of lines is calculated as if the area was not broken down into grids. The local reference units are available for when a user is in the field and not working in ground coordinates.

Each map shows the proposed coverage. The legend of each map identifies the survey grid, displays the geographic coordinates as well as the project description.

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