Questions tagged [land-survey]

The measurement of landscape features and their positions.

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2
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1answer
198 views

Adding a land survey to QGIS Canvas

I'm having difficulty adding land survey information to QGIS. What I need to do is add the survey boundaries of oil and gas leases, so that I can overlay additional data associated with land ...
1
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1answer
896 views

Locating land title technical description on Google Maps

I am planning to buy a certain property but I'm too far away from where it's located to check it personally. The seller sends me a technical description of the property and I'm trying to locate it on ...
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0answers
20 views

Tems Investigation and Garmin GPS 18x

I am new to Tems Investigation. I am using Garmin 18x as GPS Receiver, but it is not working. I already installed USBDrivers_2310 for my Garmin 18x. Does Tems Investigation supports Garmin 18x GPS ...
3
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1answer
939 views

Using PLSS or BLM Boundaries in Oklahoma?

In Oklahoma should i be using the PLSS or BLM Boundaries I am struggling with: Which Surveying system to use in ArcGIS. The PLSS (Public Land Survey System) or the BLM (Bureau of Land Management) ...
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0answers
22 views

How to create a roadway using a topo values shapefile (survey points data) in Sketchup Pro?

I am a GIS Technician, new to Sketchup, I would like to know how to create a roadway in Sketchup Pro using a shapefile which is a survey points data with elevations in meters. The topographic data is ...
5
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1answer
176 views

QGIS transformation local coordinate system to UTM35

I am creating a geo database for an archaeological excavation. We want to put data from a local system and from UTM35 in the same QGIS-project. I have Ground Control Points and I calculated ...
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0answers
24 views

Bearing convergence in digitizing property surveys

I'm digitizing and stitching together a number of adjacent/overlapping property surveys. The most recent ones provide clear UTM/MTM grid bearings and distances, and in some cases coordinates of ORPs, ...
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0answers
50 views

Export DEM as point cloud in LAS format

I have a huge Digital Elevation Model in AutoCAD Civil 3D. I used the NNI smoothing method on the DEM (with 0.2 meters raster). I want to export the surface data as a point cloud in the LAS format. ...
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0answers
15 views

Spheroid Flattening Impact on Elevation

I am importing points containing elevation from a survey controller into a GIS. The survey template on the controller contains a projection using a HT2 Geoid model, in NAD 83 Canada UTM. I can match ...
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1answer
61 views

What do the acronyms OBT and OCIP mean on a survey plan?

When looking at survey plans for British Columbia, Canada, there are various acronyms used to describe survey markers. Ones that I do know include: BT - bearing tree CIP - capped iron post PP - "...
3
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1answer
2k views

How to display survey calls using the traverse tool?

I use the Traverse Tool to run out legal descriptions on deeds and recorded subdivision plats. I'm looking for a way to display the survey calls once I'm done. Is there a way to do that? I'm using ...
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0answers
28 views

How to enter survey coordinates into parcel fabric traverse grid?

I have a survey that only gives me the coordinate points for a parcel I need to draw into the parcel fabric. I am used to seeing bearings and distances - how do I take these coordinate points and turn ...
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3answers
28k views

Outline a plot of land on a map

A client has a very old Certificate of Ownership document for a plot of land. We need to show the outline of the plot on Google maps to potential developers. Sadly the description of the plot is in ...
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0answers
17 views

Area measurement validation: ellipsoid vs geoid

I try to validate area measurements on orthomosaics using objects of known size on the ground. I'm working on centimeter level measurements. As far as i understand an orthomosaic in WGS 84 is ...
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0answers
144 views

Transforming Cassini coordinates to UTM

Why is it that when I transform certain Cassini coordinates to UTM, they give negative UTM coordinates, which should not be the case. Note that the equator passes through this particular area of ...
2
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3answers
1k views

Multiple font markers in shapefiles in QGIS?

I'm making a UK phase 1 vegetation survey map and require to show the dominant plant species in a given polygon. In phase 1 these are shown as 2- or 3-letter codes e g Ri, Cys. These codes need to ...
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3answers
170 views

Is there demand for higher resolution alternative to GPS tracking in GIS market?

If there was an alternative to GPS that provided higher resolution tracking, what applications would there be for it in GIS? Note that this means higher resolution, but not necessarily higher ...
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0answers
78 views

Getting the latitude and longitude coordinates (to plot 2D) from a well survey

I basically want to do what you did here How to create a layer of directional/horizontal wells?. I am able to get the coordinates from a well survey to create a shapefile to be able to visualize the ...
2
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0answers
48 views

Shifting points along normal vector to path

I have list of points which are connected with line in "zig-zag" fashion: Using QGIS, I'm trying to create a line connecting all the middle or inside points and then shift all outside points to this ...
6
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2answers
6k views

COGOing Legal Descriptions using ArcMap

I successfully used the COGO traverse tool to create a polygon for a piece of property described in a legal description. My issue arose because it did not line up with data I already have of the area. ...
3
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1answer
721 views

Can QField record GPS Z-Value

We are a land survey company and are considering using QField to perform asset surveys for local government agencies. Looking through the documentation it appears that QField can do most of what we ...
5
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2answers
167 views

Cheap relative positioning

I have a 6 acre permaculture farm, and I would like to be able to plant something at a location, log the location, and be able to find it again to within about a foot accuracy. I do not need the ...
2
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3answers
3k views

Why can't lines plotted on google maps suffice for legal determination of property boundaries?

If there is a way to calculate a maximum error in a line plotted on google maps (road map, or satellite view) , then that should be admissible in a court of law, shouldn't it ? For example, my deed ...
4
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2answers
10k views

How to Calculate North?

I am working on a field survey and a client requirement is to differentiate various norths, like magnetic north, true north and grid north. My question is what is the methodology of calculating north ...
3
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0answers
96 views

Recreate a Local Custom Coordinate System from Survey Data in GIS?

I have a .DWG file of a series of survey points that has no associated projection file with it. The surveying group I received the data from states that the system they use is a local coordinate ...
1
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1answer
205 views

Difference between a GNSS receiver and GNSS antenna

I´m relative new using GNSS data and I would like to understand a little more about the instruments that I´m planning to use in my future research. I was looking information on the UNAVCO website ...
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1answer
63 views

Seeking list of geodetic benchmark locations for all of Canada? [duplicate]

Does anyone know where I can find a list of geodetic benchmark locations for all of Canada? I am looking for a few specific control monuments in Arctic Canada with accurate coordinates
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0answers
304 views

What does "CLEAR" mean on a land survey map?

I paid for a land survey of my house lot, and there was one term on the survey map that I wasn't 100% sure about: "CLEAR". It's used on the map to refer to a short distance (e.g. 0.1' CLEAR or 0.2' ...
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2answers
652 views

GIS Survey Line Plans [closed]

Has anyone ever heard of any tools in either Arcmap, QGIS, Mapwindow GIS etc, that could create a line plan (Survey Lines) across a polygon (Survey Area)? A form of input such as distance between ...
2
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0answers
40 views

Seeking method for determining survey points?

I'm trying to write software to create a topographic map, my goal is to select several points of interest and create a minimal mapping that is inclusive of the points and interpolates the topography. ...
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0answers
32 views

Details on Topcon theodolite data format (<3595959+3595959+****d094)

I am interfacing to a Topcon DT-102 (circa 1995) digital theodolite and wonder if anyone can help with the transmission format. It is perhaps shared with Sokkia or Leica/Wild. Background The unit ...
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0answers
67 views

Distance calibration between GNSS RTK receiver and display/processing device?

Are there any known procedures for calibrating a precise position of an external processing/display device (e.g. a smartphone or a tablet) relative to the GNSS receiver? Apparently, such a procedure ...
1
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1answer
48 views

Mapping & digitizing geographic features freehand? [closed]

I´m working on a project to map a colleague´s farm, and then ultimately digitizing that information to produce maps and signage. To start, we´re focusing on a small agroforestry plantation. We want ...
1
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0answers
603 views

Computing Shannon-Weiner biodiversity index using QGIS? [closed]

I wonder if anybody has some experience in calculating biodiversity index (such as Shannon-Weiner) using QGIS? I am also interested for similar experiences using R scripts within QGIS. The analysis ...
0
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1answer
264 views

WPF: How to change the Map Point coordinate(lat/long) to screen point (x-y) on ArcGIS

My project required me to perform a close traverse to plotting by placing a marker on that particular point. My problem now is that the traverse calculation are in x-y plane, but to plot a point using ...
1
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1answer
681 views

Open Traverse Method for the map survey

I need to use traverse method in my program on visual studio(WPF) so that the user can get their target point coordinate by using their initial data. In my knowledge there is two type of traverse that ...
7
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1answer
121k views

Locating property corners using plat map description?

I am interested in a piece of property for which I have a plat map description, giving what seem to be latitudes/longitudes of lines along the boundaries (not sure about this). The objective is to ...
2
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1answer
111 views

Hardware for Surveying and mapping total station

Is "Microsoft Windows CE 6.0 / Magnet Field" operating system the sole property of TOPCON total station or it can be found in other total stations as well?
4
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1answer
1k views

Interactive maps for a survey - Are there any tools yet?

i am working on a draft for an online-based survey. I would like to enable the participants of the survey to draw polygons, lines and points (several) on a basemap (e.g. google maps) and (extra ...
1
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2answers
4k views

Understanding the MUSYM field on SSURGO dataset?

What does the MUSYM field on the SSURGO data set mean? I have looked on the nrcs website have only found that it identifies soil. In the data set that I am looking at there are values like Ub and ...
6
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4answers
2k views

Reaching cm (inch) level elevation precision using drones

A road construction firm needs altitude data of road path before and after the construction and the error should be less than 3 cm (2 inch). Normally, they put a ground station and workers manually ...
2
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2answers
1k views

How to Convert Property Survey Monument Marker Coordinates to State Plane?

I have a set of Connecticut monument locations (a monumented property survey using monuments designated CGS Mon. No. 1577-1580). Their coordinates appear to me to be in meters (244536.84 N, 386409.67 ...
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1answer
242 views

Understanding CadNSDI versus GCDB PLSS datasets difference and accuracy?

I recently submitted some coordinates I acquired via ArcGIS to the BLM to go out into the field and pinpoint some locations. When I did the work at the computer I used ArcGIS and leveraged the BLM's ...
2
votes
1answer
6k views

Convert Cassini-Soldner Projection coordinates from Kenya to UTM

I have a list of coordinates from Kenya. The coordinates were recorded in old survey maps using Cassini-Soldner Projection, with Clarke 1858 Datum. The approximate geographic coordinates (WGS84) of ...
3
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2answers
366 views

American FactFinder by ZIP code

I'm doing a research project that involves using demographic data collected from both the national Census and the American Community Surveys. I am interested in about 40 zip codes within NYC. The ...
2
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0answers
341 views

Adding land survey info to QGIS?

I am looking for help digitizing or adding info from survey plans into QGIS. In this example I'm trying to add the lease boundaries highlighted in yellow and the pipeline right of ways to the right ...
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0answers
38 views

Geolocating dataset of well pumps?

I have a dataset of well pumps, and I am trying to geolocate them. Each of the wells has as "Service Address" field, but instead of giving an address, it lists something that looks like this: "NW NE ...
5
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2answers
6k views

Can we create topographical map of private land using GPS elevation data?

Is there a way to create a relatively precise topographical map of a private land using GPS elevation data? As the land is a little bit over 100,000 square meters, the available regional topographical ...
0
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1answer
570 views

How to map using more 'accurate' DATUM than WGS84? [closed]

WGS 84 is not very accurate as it is a compromise for the whole earth. Assuming theoretically I'm surveying using very accurate IMU and very accurate GPS (in WGS 84 of course). I think I'll get a ...
1
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1answer
622 views

DGPS post-processed Kinematic (PPK)

I did a dGPS survey last summer. Unfortunately, we didn't have a base station. So I did my survey in post-processed Kinematic PPK mode. Because we borrowed the equipment, we don't have access to post-...