North American Datum
The North American Datum (NAD) is the datum now used to define the geodetic network in North America. A datum is a formal description of the shape of the Earth along with an "anchor" point for the coordinate system. In surveying, cartography, and land-use planning, two North American Datums are in use: the North American Datum of 1927 (NAD27) and the North American Datum of 1983 (NAD83). Both are geodetic reference systems based on slightly different assumptions and measurements.
First North American Datum
In 1901 the United States Coast and Geodetic Survey adopted a national horizontal datum called the United States Standard Datum, based on the Clarke Ellipsoid of 1866. It was fitted to data previously collected for regional datums, which by that time had begun to overlap. In 1913, Canada and Mexico adopted that datum, so it was also renamed the North American Datum.
North American Datum of 1927
As more data were gathered, discrepancies appeared, so the datum was recomputed in 1927, using the same spheroid and origin as its predecessor.
Podcasts:
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by Night & Day
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by Night & Day
What The Deal Be
by: Night & DayHmm, listen
I noticed that you don't act the same
Always leaving home in the evening
It's driving me insane
Baby do you think I'm a fool?
Well I followed you today baby
And what I seen blew me away
I saw you, riding
On the north side with your baby's daddy
You didn't see me, I was low key
Just tell me baby
What the deal be?
I saw you, kicking it
On the north side with your baby's daddy
You didn't see me, I was low key
Just tell me baby
What the deal be?
You always say that he ain't no man
But you, you find a way to see him
Whenever you can, oh yeah
Baby do you think I'm a fool?
Well I followed you today baby, ha
And it blew my mind away
When I saw you...
I saw you, riding
On the north side with your baby's daddy
You didn't see me, I was low key
Just tell me baby
What the deal be?
I saw you, kicking it
On the north side with your baby's daddy
You didn't see me, I was low key
Just tell me baby
What the deal be?
So do you love him?
Or do you love me?
If you love me baby testify about it
Can you do that for me?
Oh so do you want him?
Or do you want me?
Me, me, me, me
Cause if you're down
I'll give you the chance to stay with me
Even though I saw you riding yeah
I saw you, riding
On the north side with your baby's daddy
You didn't see me, I was low key
Just tell me baby
What the deal be?
I saw you, kicking it
On the north side with your baby's daddy
You didn't see me, I was low key
Just tell me baby
What the deal be?