Tagged Questions

Questions relating to the sea or ocean.

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1
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1answer
36 views

Extract all unique values from a RGB raster

I have a .png file in RGB format showing the intensity of ship traffic: For my analysis I need to convert it to a one-band raster with values between 0 and 1 where 0 means lowest density and 1 ...
1
vote
1answer
221 views

What is the coordinate system of this maritime natural gas field map?

The Israeli Ministry of Natural Infrastructure, Energy and Water Resources published a maritime map of the borders of a new natural gas field. The map is a part of a full license (PDF), a legal ...
1
vote
0answers
132 views

Help with running this ArcGIS AddIn for Parsing AIS Shipping Data to GDB?

I was wondering if someone could try the same Add-In with the same data and see if they have an error. I have downloaded the 'AIS Data Handler Pre-Processor' ...
1
vote
1answer
179 views

Volume of Land Below Sea Level

How could one use a GIS (or other appropriate system) to calculate the change in mean ocean levels across the world if all the land below sea level were flooded (Death Valley, Caspian Depression, Afar ...
3
votes
3answers
114 views

How does GIS intervene in ports and coastal areas?

I guess my question is pretty clear and yet broad, but what I was kind of hoping for is some insight on how GIS would be helpful in managing the ports or coastal areas. I can imagine it could serve ...
3
votes
0answers
166 views

Where can I get free nautical route planner Data?

Please read - and understand - before closing; I do not yet have an answer. Thanks. I made a mistake. I phrased my original question so that it could be answered by recommending an application. It ...
3
votes
1answer
963 views

Seeking free nautical route planner

Not actually a route planner, but it amounts to the same thing. I want to know the distance a vessel at sea must travel between two points. Obviously this isn't just a straight line thing, if there ...