Bathymetry is the study of underwater depth of lake or ocean floors.

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Importing MaxSea 3D Database to PostGIS

I am currently working on a project, where I combine several MaxSea 3D databases, which contain depth measurements made by the echosounder onboard on a ship. The idea is to combine these databases to ...
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231 views

shortest distance between a raster and another raster

i am using arcgis 10.1 i want to calculate the shortest distance between a raster and another raster. i have a bathymetric raster and an underlying fault plane raster. for each bathy raster cell, i ...
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75 views

Bathymetry dataset of Italy

I am looking for a dataset of bathymetry data of Italy. I shall use it in an application for collision avoidance of vessels coming into the port. I need to know how deep the sea bottom is at each ...
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43 views

Creating Dem from cross sections

I have a question I appreciate that if someone can help me I have a DEM in arcmap and cross section of a river which flows on the Dem in Hecras. I now the cross sections are more accurate. I want to ...
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1answer
52 views

QGIS - View bathymetry info in the status bar

PolyGo suggested that I split my earlier twofold question into separate questions. So: I am new to QGIS or any GIS software so please forgive me if the answer is obvious to you. I wish to view the ...
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1answer
534 views

Create a 3D surface from xyz csv using GRASS

Apologies if this is a repeat question guys. I am trying to create a 3D bathymetry surface from xyz data. There is approximately 300,000 points with lat, long and z (depth data). The data is sonar ...
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Using same line to interpolate multiple rasters, and put all profiles on same graph, using ArcGIS for Desktop?

I'm new to the website and new to ArcMap so please bear with me. I'm struggling with the "interpolate line" function on ArcMap. Long story short (hopefully): I have some bathymetry rasters of an ...
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18 views

Can I upload an LPA file (Long Profile) to QGIS

I have a .lpa file that I'd like to upload to QGIS - Can this be done and if so, how? Thanks!
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Lake Victoria bathymetric data

I am trying to find bathymetry for Lake Victoria (or portions). Any GIS format and almost any resolution will do. As a last resort a hydrographic chart will suffice.
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Whats the best way to create bathymetric contour lines?

I have a raster dataset with both Topographic and Bathymetric stored in it. What is the best way to create exact contours of the lake-bed? This becomes tricky when I want to make the contour for depth ...
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142 views

Turn bathymetry into elevation in arcGIS?

My raster is in depth of bathymetry however when this is shown in 3D it reverses the elevation making the deepest points the highest in elevation and the shallowest points the deepest. This makes a ...
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247 views

Best method to convert CSV file of lat/lon and depth data to bathymetry polygon?

I'm trying to create bathymetry polygons based on lat/long and depth data. I have tried several methods and the resulting polygons are clunky. Make XY Event Layer-->Copy Features--> Project--> ...
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Convert exported ArcGIS .dwg to 3D rendering on AutoCAD 2013?

We're working on a bathymetry mapping project of our reservoir, digitized as it was built in 1977. I have a polyline .shp for contours and polygon .shp for area between contours with fields including ...
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44 views

Trying to make a depth map of a lake but can't get the contours to show up right

I am trying to make a depth map of a lake. I am using the contour plugin to generate contour lines. The problem I am having is that when I use the plugin the contours come out right except on the ...
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0answers
48 views

using r.volume model GRASS plugin in QGIS

I am calculating volume of bathymetric data in the form of a clipped raster in GRASS with a Custom Lambert projection centered around 70degrees North, using the module r.volume in GRASS. Side note: ...
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Should i use cell registered or grid registered bathymetric data in QGIS?

I am planning on calculating habitat volume over great ocean distances and have the choice to use either Grid or cell registered data, downloadable from this link. ...
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107 views

producing a bathymetric map in qgis with limited depths measurements

i am new to your community and hope you to find tips on how to work with the following project. i want to produce a bathemetric map (depths profile) of a water area. I do have aerial images and 3 ...