[Qgis-user] Lat Lon Tools question

[chris hermansen]

David and list

On Sat, Feb 6, 2021, 10:50 David Strip <qgis-user at stripfamily.net> wrote:

> On 2/6/2021 11:33 AM, chris hermansen wrote:
>
>
> Your lat long 35,-106 are far west in the northern hemisphere. Therefore
> the UTM zone is 13N not 13S.
>
> This is somewhere near Memphis Tennessee if I am not wrong.
>
> Actually, that's pretty close to me. It's in Los Alamos, NM. (I'm about 75
> miles WNW).
>
> There is some confusion about the naming of UTM zones. According to
> Wikipedia
> <https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system#UTM_zone>,
> the latitude bands are not part of the UTM description, but rather from the
> MGRS. Nonetheless, UTM grid references are sometimes given, creating the
> ambiguity between 13S meaning latitude band S vs. meaning a UTM coordinate
> south of the equator. In the case of the coordinates given here, 13N means
> zone 13 north, and is not a latitude band reference.
>

The latitude band thing is different than the N or S convention, I believe.

13N gives metres north of the equator.

13S gives metres north of the south pole.

>
>
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