Questions tagged [bathymetry]

For questions that concern the topographic characteristics or landforms present on the floor of lakes, rivers, and other bodies of water.

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1answer
118 views

Best way to interpolate bathymetry with a directional component?

I have a bathymetry dataset that has a small section missing. I need to fill in this section. The bathymetry in this region has some strongly directional features (e.g. a canyon that runs through the ...
1
vote
0answers
129 views

Issues with projection and fig using python and mpl_toolkits.basemap

I currently have depth data that I am plotting with the code below. The problem that I am having has to do with the figure python is spitting out. The figure is really tiny. I have tried a few things ...
8
votes
1answer
1k views

Why do fjords have sills?

I have read about some of the geologic processes that are related to the formation of fjords. Is the presence of sills in fjords related to the deposition of glacial moraine?
9
votes
4answers
211 views

Confusion about grid registration concepts and their relevance in modelling

I'm trying to make use of the ETOPO1 dataset as the bathymetry input of a wave model. I came upon this discussion of grid registration: Registration of Structured Square-Cell Grids. I read this ...
8
votes
1answer
92 views

What is the error in bathymetric observations in the presence of vegetation?

How can we determine the error associated with bathymetric measurements when we survey over submerged vegetation? Let's say we are using single-beam echo-sounder over a patch of Posidonia, what are ...
9
votes
1answer
584 views

Does bathymetry affect ocean topography/height?

Here is a map of ocean surface height or topography: Source: http://www.esa.int/var/esa/storage/images/esa_multimedia/images/2010/12/mean_dynamic_topography_of_global_ocean/9930795-2-eng-GB/...
10
votes
1answer
463 views

How do I find the volume of ocean between any two layers of ocean depth?

I'm interested in this problem because I'm interested in obtaining a rough estimate of the average temperature increase of the sea given a net radiative forcing of 0.6 W/m^2. But in order to obtain ...