Questions tagged [volume]

Volume is the quantity of three-dimensional space enclosed by some closed boundary

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37 views

Volume of excavated pond

I am trying to obtain Cut/Fill Volumes of a large on-site pond using the new Volume Calculation Tool in QGIS. My files are: DTM (DSM) in TIFF format Contours in DXF and SHP format I have no problem ...
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31 views

Volume calculation of different termite mouts

So i know how to calculate the volume of 1 indiviual mountain, but my problem is that i have a data set (LiDAR) with a lot of those. I was thinking if there was a more effecient way to calculate the ...
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30 views

Cut-and-fill, will my method output a valid result asumming absolute DEM accuracy?

I'm using QGIS and have to calculate the cut-and-fill volume given a new topography profile. Right now, I have both elevation data (old and new) in DEM with projected CRS. I've tried using zonal ...
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1answer
55 views

QGIS 3.16 different results in volume calculation

I am trying to find ways to calculate a volume with : 1 base DEM resolution 1m 1 elevation DEM resolution 1m First method: Using the extension volume calculation tool as follows. The result seems ...
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2answers
54 views

Building a table from for loop values in QGIS

I am calculating the volume of a few lakes at 1 cm intervals. In QGIS I am using the raster surface volume tool and I am trying to iterate the process in a for loop so that I don't have to manually ...
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85 views

Calculate raster volumes within polygons - GDAL & Python [closed]

I have a shapefile with 625 polygons. I have a .tif raster DEM file at a 1m resolution. Objective: get 625 values that describe the volume of the raster (above 0m elevation) within each polygon. (...
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71 views

Calculating volume of areas from CHM [duplicate]

I classified laying logs (tree trunks) from CHM (Canopy Height Model = Digital Surface Model (DSM) - Digital Terrain Model (DTM)) created from LiDAR point cloud. I converted classified logs into ...
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1answer
759 views

Elevation and Volume relationship curve in QGIS

Is there any tool in QGIS3 or any open source tool which does a Volume against Elevation curve when you provide a polygon? For clarity enter link description here has a good way to calculate the ...
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1answer
220 views

Calculate volume of MultiPolygon Z using Postgis

I am trying to calculate the volume of a multipolygon z using Postgis. SELECT ST_Volume(geom) from grb; And I get this error: MultiPolygon is invalid : Polygon 0 is invalid: points don't lie in ...
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42 views

Calculating sink volume in R via rgrass7

I want to calculate the volume of sinks in a DEM raster in R, since I have to automatize the workflow later. Following the results of my previous question (Creating depressionless DEMs with rgrass7) I ...
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1answer
47 views

Converting road segments into one full link and taking mean of traffic volume

I have road segments and want to convert them into one link (intersection to intersection). Image 1 shows the segments. The biggest issue is that each link has traffic volume and when converted to ...
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1answer
107 views

Calculating volume of several TINs in ArcGIS Desktop

I am trying to calculate the volume of several TINs using the 3D Analyst of ArcGIS 10.5. My data can be found here: https://drive.google.com/open?id=1ERFdsqDGLH1a_FbxwawE_gPm0Au0Q9vT For a start, I ...
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56 views

ArcGIS Polygon Volume - Variable height field

I'm using ArcMap 10.6 I have a TIN of a landscape which has a series of mounds on it. I have isolated polygons for each mound, which are not flat but variable in height as they go around each mound. ...
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72 views

Extracting object volume in eCognition?

I am a beginner in eCognition and am working on trying to extract volume for certain classified objects. When I extract volume with the ruleset given in the program it is the same value as the area (...
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1answer
575 views

QGIS - processing area and calculating volume of polygon with know elevation from a DEM

I got a DEM of a watershed and I need to create a dam at a fixed elevation (with a rectangular polygon corresponding at the top of the dam) and calculate it's area (including the slope (fixed value) ...
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351 views

Calculate volume of space defined by multiple overlapping 3D polygons

I have thousands of 3D polygons scattered in space but they mostly overlap with many of their neighbors in big extent. Is there any way how to compute volume they define effectively? I would love ...
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1answer
199 views

Raster Volume Returning Wrong Volume

I have a clipped surface using Washington State Plane North (feet) added to a QGIS project using the same CRS. I am trying to calculate the area under this surface (a dirt pile) using SAGA Raster ...
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1answer
417 views

Calculating volume between polygon and raster?

I want to calculate the volume between a route alignment and a raster. I have the centerline of the route. The centerline is between point A and B as it is presented in the figure below. Point A and B ...
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38 views

Computing volume of pits with a variable surface edge in a DEM? Multiple TINS per surface? [closed]

I have a DEM of the seafloor. The grid is highly variable, with scour pits throughout the lower right quadrant. I want to compute volume for these pits. It seems all the standard tools such as Cut/...
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35 views

Attribute Table fields NULL for volume calculation - confused

I just tried a volume calculation with QGIS on a DSM. After using the zone statistics function the attributes (mean, max, min) for the corresponding polygon are all NULL. Anyone knows why that doesn´t ...
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1answer
113 views

sfcgal ST_Volume Issue

ST_Volume works with shape data pasted into the query in this form: SELECT (abs(ST_Volume(design)) - abs(ST_Volume(ST_3DIntersection(design,scan)))) FROM (SELECT (ST_MakeSolid('...
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1answer
70 views

Comparing DEM volume using GRASS

I have two DEMs of an open-pit mine taken a few weeks apart. I would like to estimate the volume that has been excavated during that interval, ie the difference of volume between the two DEMs. Can I ...
2
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1answer
833 views

3D Points within 3D Polygon in PostGIS

I've been working with PostGIS for a while now, and I'm able to run queries over massive datasets reasonably easy and fast. However, I do have an issue now that I don't know how to solve. I did find ...
3
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1answer
1k views

volume of a raster

I have two rasters from which i want to calculate the volume difference between the two. I made a 3rd raster that shows the difference between the first two rasters. So i think calculating the volume ...
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1answer
55 views

How precise is a volumetric calculation made with satellite stereo par imagery?

If I had an stereo par from Worldview-2 or GeoEye-1, how precise would be the calculation of mine's materials in cm3?
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30 views

Methods to differentiate between terrain

I am not specialized in GIS. I have some moisture contour maps, I want to compare each pair to trace the changes between either in a numeric way. I tried to get the mathematical difference between ...
3
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1answer
2k views

Calculating Volume differences between two DTM from different years with QGIS?

I need to calculate the volume of the differences between two DTM from different years with QGIS. I am trying to figure out how to do it, but I do not see anything clear about that. Could anyone ...
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2answers
7k views

How to measure volume in raster?

There are many similar questions like this. But I haven't found a usefull answer yet. So I hope some of you have a suggestion to this. I've done some flyovers with the drone at a contruction area, ...
4
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1answer
441 views

Change Detection in ArcGIS Desktop?

I have two .las files derived from UAV photogrammetry. From there, in global mapper, I created a shapefile for each survey (one week apart), cropped to a shapefile. Brought those two shapefiles into ...
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2answers
1k views

How to restore a scarp surface grid to calculate material loss

I would like to calculate the volume of material lost from a scarp like the one shown in the following image: Is there a way to do these calculations with open-source software such as GMT, QGIS and ...
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0answers
281 views

Make 3d model from picture and calculate volume

I have a picture (fictional) of a mountain. What I want and am not able to do without help, is to make the coordinates and height to the right scale. I have a line that represents 10 km on the ...
5
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1answer
3k views

Cut Fill Tool in QGIS?

Looking for the equivalent of the Cut Fill Tool in QGIS. I have multiple DSM rasters from a drone that I would like to do a volume analysis on. A cut-and-fill operation is a procedure in which the ...
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3answers
555 views

In DEM data there the elevation ranges from - 156 to 3877. What does this mean?

The elevation of that (project) particular landform cannot be negative (I think). Does this mean the DEM data is wrong?
3
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2answers
737 views

calculating a volume from points [closed]

I am trying to calculate the amount of water in this reservoir. The green dots are water depths in meters (possitive value). The water depth at the edges of the reservoir is 0. How can this be done ...
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1answer
1k views

Calculate volume from raster (GRASS) with depth per cell

I'm trying to calculate the volumes of depression areas filled with water. I have the depth for each cell in the raster, and I'm trying to get the total volume of cells adjacent to each other. Which I ...
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2answers
105 views

Volume Calculation for non-closed geometries in postgis

I have a problem regarding the volume-calculation in a specific 3D Dataset. The data consists of 3D multipatches that represent buildings. One building consists of one or more non- closed multi-...
2
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0answers
95 views

Calculate the volume of a surface above an irregular surface [closed]

I am working with repeat LiDAR data over a dune field. From the LiDAR I have generated a DEM with approximately 30cm accuracy over the entire dune field and generated a TIN from this as well. I need ...
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2answers
1k views

Calculating the volume between two interpolation layers in QGIS?

Given data From a shapefile with ca. 80 points (displaying borewells) I extracted two interpolations: interpolation values of the different borewells’s elevations; interpolation values for the ...
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0answers
383 views

Bathymetry map (DEM) and the reservoir Volume from bathymetry points

Could anyone provide me with a workflow from POINTS --> Bathymetry map (DEM) and Volume calculation in ArcGIS? I would like to create a bathymetry map (DEM) and calculate the volume for a large ...
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0answers
274 views

Sun Shadow Volume Tool ESRI [closed]

At my Sun Shadow Volume analysis I have the problem that not all of the shadow volumes reach the originating feature. I get a field named "HUGS_FEATR" where it is indicated if the shadow hugs the ...
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2answers
2k views

Estimation of volume from DTM

I'm using QGIS for quite a while now but I'm having some problems in measuring the volume of a depression zoned North of a waste dump I'm studying. For the analysis I'm using a recent 1mx1m DTM of ...
0
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1answer
567 views

ArcGIS Surface Volume - multiple results in one table

I'm calculating volumes and surfaces using Surface Volume tool. According to the help page: http://pro.arcgis.com/en/pro-app/tool-reference/3d-analyst/surface-volume.htm it should be possible to ...
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0answers
39 views

Volume calculation using Mosaic & Cut Tools [closed]

I'm new to ArcGIS and I'm taking an introductory course for it. I have a problem trying to quantify the volume of a lake. The lake is enclosed by two dams which are to be extended from 1909 to 1932 m....
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0answers
85 views

Arcpy - Calculate volume using CutFill tool

Currently i have the output of Pix4D which contains: DSM, DTM, LAS file. I want to calculate the volume of a polygon specified by coordinate. Here is the script i'm using right now: arcpy....
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0answers
119 views

GRASS r.volume Error

I am writing a Python script which uses a vector polygon outline to construct a raster map of a hypothetical 'mound'. Finally, the script will output the volume of this mound using r.volume. The ...
2
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1answer
778 views

calculating volume

I need to calculate removed material volume on arcmap 10.2. I have a present-day dem and a very large and irregular polygonal shapefile that is the area in which I have to calculate volume. How can I ...
3
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1answer
164 views

Pond Sediment Volume in QGIS/Grass

I have two rasters, one depicts current water depth and the second depicts the original pond depth. I wish to calculate the volume of the region between the two. -be gentle, I'm a noob.
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1answer
356 views

volume mass calculation

I have raw data with x, y, z coordinates before work and after work. I have to calculate mass volume between two of them. I have converted two files into tin. I have used surface difference (3D ...
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0answers
567 views

Results of volume calculation differ between cut/fill vs polygon volume in ArcGIS for Desktop? [closed]

I am using ArcGIS 10.3 for Desktop. We just have a project that require to create a pond. So I get to the field to collect survey points for topography and work expense purpose (we use volume of the ...
0
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1answer
1k views

Calculating volume using polygon instead of contour line in ArcGIS Desktop?

What I'm attempting to do is calculate the volume of a lake using a polygon I created by classifying an image for water. I then extracted the polygon from the classification process. What I'm left ...