Re: Quiz -- Fortune Bay Expeditionary Team Campfire

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Subject:

Re: Quiz

Author:
Andy Kursch

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Date Posted: 15:00:56 02/03/04 Tue
In reply to: Pathfinder 's message, "Quiz" on 21:07:55 02/01/04 Sun

>Three more questions to add to the campfire.
>
>
>1. What does WGS84 and NAD27 stand for? Which should
>you use on your recreational GPS?
These are different models for overlaying map coordinates onto actual terrain.

WGS84=World Geodetic System 1984
NAD27=North American Datum 1927

All USGS topo quads are based on NAD27, so if using those your GPS should be set to NAD27.

>
>2. The UTM system consistes of how many zones and at
>what longitude do they begin?
>
60 zones, they are numbered 1 to 60 going east. They start at the international date line, 180 degrees.

>3. What does MGRS stand for? And what grid system is
>it similar to?
>

It is the U.S. Military Grid Reference System. It uses the 60 zones of UTM, with a few modifications. It also includes a system of letters that designate now far N or S the lattitude is.

>These are questions that will be covered in depth in
>the Advanced Land Navigation Class. These questions
>become more important for the GPS users as they learn
>their tool.
>
>One question remains unanswered.
>
>1. Why did Native Michigan Tribes fill their canoes
>with rocks and swamp them. (Hint, they did this in
>time of war)
>

Guess #1. To hide their canoes

>Looking forward to your answers, as usual.
>
>Pathfinder

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Replies:

Subject	Author	Date
Re: Quiz	Pathfinder	21:02:01 02/03/04 Tue
Re: Quiz -- andy Kursch, 22:27:50 02/05/04 Thu Re: Quiz -- Pathfinder, 00:19:31 02/06/04 Fri Re: Quiz -- Andy Kursch, 21:24:09 02/08/04 Sun