What does 8GK100K mean?

Question

I have a lot of mosaic datasets:

Zone8GK100k, Zone9GK100k, ... , Zone7GK25k, ... , Zone7Gk50K, ... , Zone7GK200K.

As I know, 7GK, 8GK... are utm zone numbers.

1) What does 25K, 50k, 100k, 200k mean?

2) What is the relation between these numbers and the ArcGis scales (1:1 000, 1:10 000, 1:24 000, 1:100 000, 1:250 000 ...)?

Update:

Thanks. I have layer Zone9GK200k. So, I set: "In beyond 1:200 000". What minimum scale(out beyond) for this layer do I set?

Looks like a custom grid naming scheme to me. UTM zone numbers (11N, 22S, etc.) don't normally look like that. Where did the data come from? Does it include metadata describing its coordinate system and naming convention? — blah238, Commented Oct 7, 2013 at 7:09
Your update sounds like a different question to your original (1+2) above so I recommend that you post it as such. — PolyGeo, Commented Oct 7, 2013 at 8:00
Spatial reference is Pulkovo_1942... Sorry, the reference is not UTM. — novicegis, Commented Oct 7, 2013 at 8:01

PolyGeo · Accepted Answer · 2013-10-07 08:26:34Z

4

100K is short for 100 thousand (kilo) and is used as shorthand for a scale of 1:100,000.

This can be extrapolated to the other examples.

For completeness 8GK appears to stand for Pulkovo 1942 / Gauss-Kruger zone 8.

answered Oct 7, 2013 at 6:19

PolyGeo♦

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Thanks. I have layer Zone9GK200k. So I set: In beyond 1:200 000. What minimum scale(out beyond) do I set?
– novicegis
Commented Oct 7, 2013 at 7:53
This sounds like a different question to your original (1+2) above so I recommend that you post it as such.
– PolyGeo ♦
Commented Oct 7, 2013 at 8:00

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