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Comments (5)

PaulWessel avatar PaulWessel commented on June 27, 2024

It certainly can be improved. We have information about levels in coast and gshhg modules but there we talk about the levels of the lines. Here we are talking about the areas between the levels (or in the case of the ocean, the areas outside level 1 (shoreline). So a better description might be

  1. Ocean areas beyond the shoreline
  2. Land areas inside the shoreline
  3. Lakes inside the land area
  4. Islands in lakes in the land area
  5. Smaller lakes in islands that are found in lakes inside the land area

Not many of category 4 but there are at least one - not visible in this plot (neither are category 3 I think unless using full resolution).

I can work on this tomorrow unless you want to use this and put it in the right place. I think a link to the coast and/or gshhg documentation is probably also helpful here given the two Antarctica shorelines.

from remote-datasets.

PaulWessel avatar PaulWessel commented on June 27, 2024

Hi @seisman, looking at this information, isn't it pretty clear anyway?

from remote-datasets.

joa-quim avatar joa-quim commented on June 27, 2024

I don't see why we are distributing masks that go beyond level 2 (actually I don't understand why we are even distributing mask grids at all that can be computed with a one-liner.)

from remote-datasets.

seisman avatar seisman commented on June 27, 2024

Hi @seisman, looking at this information, isn't it pretty clear anyway?

Do you mean this sentence?

Given that GSHHG contains 5 levels (ocean, land, lake, island-in-lake, pond-in-island-in-lake) corresponding to levels 0-4, the mask grids were computed to reflect those 5 levels.

When I read this sentence, I know that there are 5 levels 0-4, but I'm still unsure if grid value=0 means level 0. So I feel a description you posted in #37 (comment) is better.

from remote-datasets.

PaulWessel avatar PaulWessel commented on June 27, 2024

I don't see why we are distributing masks that go beyond level 2 (actually I don't understand why we are even distributing mask grids at all that can be computed with a one-liner.)

Please try making a global GSHHG mask at full resolution and watch the clock...

from remote-datasets.

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