NS numbers

Quoted message said:

Hi,

New to this. Can anyone tell me what an NS number is and how I can
translate it to a geographical reference? e.g., NS 374613

TIA

Chandy

This page should tell you all you need to know:

http://www.ordnancesurvey.co.uk/oswebsite/gi/nationalgrid/nghelp1.html

Colin

Colin MacDonald said:

Quoted message said:

Hi,

New to this. Can anyone tell me what an NS number is and how I can
translate it to a geographical reference? e.g., NS 374613

TIA

Chandy

This page should tell you all you need to know:

http://www.ordnancesurvey.co.uk/oswebsite/gi/nationalgrid/nghelp1.html

Colin

or

http://www.ordnancesurvey.co.uk/oswebsite/gi/nationalgrid/nationalgrid.pdf

if you want a printable reference.

Colin

Quoted message said:

New to this. Can anyone tell me what an NS number is and how I can
translate it to a geographical reference? e.g., NS 374613

See http://en.wikipedia.org/wiki/British_national_grid_reference_system

The "NS" is a 100 km square in the grid, within which you will have grid
eastings and northings to give your grid reference.

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net [email hidden] http://www.dundee.ac.uk/~pjclinch/

In article <[email hidden]>,
[email hidden] writes

Quoted message said:

Hi,

New to this. Can anyone tell me what an NS number is and how I can
translate it to a geographical reference? e.g., NS 374613

NS is the identifier for the 100km square (round about the Glasgow
area). The numbers are the grid ref in that square.

As for conversion - what do you mean by 'geographical reference'? What
are you hoping to do with the coordinates?

Further reading should tell you all you need:

http://www.ordnancesurvey.co.uk/oswebsite/gi/nationalgrid/nghelp1.html
http://www.ordnancesurvey.co.uk/oswebsite/mapshop/
http://www.gps.gov.uk/

--

Dominic Sexton

Quoted message said:

New to this. Can anyone tell me what an NS number is and how I can
translate it to a geographical reference? e.g., NS 374613

That NS number is a grid reference. NS are the letters denoting the
100km square. So NS 374613 is a stone near Clochodrick, Renfrewshire.

If you change the letters you get different references, NT 37613 is
close to Crichton Castle, Midlothian.

See here for more on grid references.
http://www.ordnancesurvey.co.uk/oswebsite/getamap/help.html#gridref
--
Phil Cook looking north over the park to the "Westminster Gasworks"

Dominic Sexton said:

In article <[email hidden]>,
[email hidden] writes

Quoted message said:

New to this. Can anyone tell me what an NS number is and how I can
translate it to a geographical reference? e.g., NS 374613

Further reading should tell you all you need:

http://www.ordnancesurvey.co.uk/oswebsite/gi/nationalgrid/nghelp1.html
http://www.ordnancesurvey.co.uk/oswebsite/mapshop/
http://www.gps.gov.uk/

Or if you haven't got a suitable OS map and just want to know where
that reference is, go to www.streetmap.co.uk and put NS374613 in the
search box. No need to select from the options - just Search and a
map will appear with that point marked. Zoom out or in until it
shows at a useful scale.

-adrian

"Peter Clinch" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Quoted message said:

New to this. Can anyone tell me what an NS number is and how I can
translate it to a geographical reference? e.g., NS 374613

See http://en.wikipedia.org/wiki/British_national_grid_reference_system

The "NS" is a 100 km square in the grid, within which you will have grid
eastings and northings to give your grid reference.

Thats OK but what does NS mean? Or for that matter NT! There must be a way
to translate these 100K Sq to an area surely;-)

JS

John Smith said:

Thats OK but what does NS mean? Or for that matter NT! There must be a way
to translate these 100K Sq to an area surely;-)

Of themselves, they don't 'mean' anything - it's just a co-ordinate
system. But, just for fun, let's assume an origin at the lower left of
the SV square, such that we have X=0 and Y=0. We'll use Km for units.

First, take the first letter. If it is J, O, or T, then add 500 to X.
Now take the second letter. If it is B, G, M, R, or W then add a
further 100 to X. Similarly, if it is C, H, N, S or X then add 200,
and so on.

Back to the first letter: if it is N or O then add 500 to Y. If it is
H or J then add 1000 to Y.
Second letter again: if it is Q, R, S, T, or U then add 100 to Y. If
it is L, M, N, O or P then add 200 to Y, and so on.

Now take the first three digits: they are the number of 10m blocks into
the 100Km square, i.e. 1000ths of a square, so we can take the original
374, divide it by 1000, and add it to X. Do the same with Y for the
last three digits.

That is the way to translate these to an area.

A word of caution for anyone wanting to do this computationally -
redefine your alphabet to not include the letter I, otherwise it'll all
go wrong.

Colin

In article <[email hidden]>, John Smith
<[email hidden]> writes

Quoted message said:

"Peter Clinch" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Quoted message said:

New to this. Can anyone tell me what an NS number is and how I can
translate it to a geographical reference? e.g., NS 374613

See http://en.wikipedia.org/wiki/British_national_grid_reference_system

The "NS" is a 100 km square in the grid, within which you will have grid
eastings and northings to give your grid reference.

Thats OK but what does NS mean? Or for that matter NT! There must be a way
to translate these 100K Sq to an area surely;-)

JS

Here are the metre eastings and northings for the bottom left of each
100km square.

Sq Easting Northing
HL 0 1200000
HM 100000 1200000
HN 200000 1200000
HO 300000 1200000
HP 400000 1200000
HQ 0 1100000
HR 100000 1100000
HS 200000 1100000
HT 300000 1100000
HU 400000 1100000
HV 0 1000000
HW 100000 1000000
HX 200000 1000000
HY 300000 1000000
HZ 400000 1000000
NA 0 900000
NB 100000 900000
NC 200000 900000
ND 300000 900000
NE 400000 900000
NF 0 800000
NG 100000 800000
NH 200000 800000
NJ 300000 800000
NK 400000 800000
NL 0 700000
NM 100000 700000
NN 200000 700000
NO 300000 700000
NP 400000 700000
NQ 0 600000
NR 100000 600000
NS 200000 600000
NT 300000 600000
NU 400000 600000
NV 0 500000
NW 100000 500000
NX 200000 500000
NY 300000 500000
NZ 400000 500000
OV 500000 500000
SA 0 400000
SB 100000 400000
SC 200000 400000
SD 300000 400000
SE 400000 400000
SF 0 300000
SG 100000 300000
SH 200000 300000
SJ 300000 300000
SK 400000 300000
SL 0 200000
SM 100000 200000
SN 200000 200000
SO 300000 200000
SP 400000 200000
SQ 0 100000
SR 100000 100000
SS 200000 100000
ST 300000 100000
SU 400000 100000
SV 0 0
SW 100000 0
SX 200000 0
SY 300000 0
SZ 400000 0
TA 500000 400000
TF 500000 300000
TG 600000 300000
TL 500000 200000
TM 600000 200000
TQ 500000 100000
TR 600000 100000
TV 500000 0
TW 600000 0

--

Dominic Sexton

On Tue, 28 Feb 2006 15:33:09 -0000, "John Smith" <[email hidden]> wrote:

|
|"Peter Clinch" <[email hidden]> wrote in message
|news:[email hidden]...
|> [email hidden] wrote:
|>
|>> New to this. Can anyone tell me what an NS number is and how I can
|>> translate it to a geographical reference? e.g., NS 374613
|>
|> See http://en.wikipedia.org/wiki/British_national_grid_reference_system
|>
|> The "NS" is a 100 km square in the grid, within which you will have grid
|> eastings and northings to give your grid reference.
|
|Thats OK but what does NS mean? Or for that matter NT! There must be a way
|to translate these 100K Sq to an area surely;-)

I does not *mean* anything it is just an identifier, Like counting
see link:
http://www.ordnancesurvey.co.uk/oswebsite/gi/nationalgrid/nghelp1.html
--
Dave Fawthrop <dave hyphenologist co uk>
Freedom of Speech, Expression, Religion, and Democracy are
the keys to Civilization, together with legal acceptance of
Fundamental Human rights.

John Smith said:

Thats OK but what does NS mean? Or for that matter NT! There must be a way
to translate these 100K Sq to an area surely;-)

The first letter (S, T, N, H or O) characterises a 500 km square, S is
the most South Westerly and has its SW point at the grid origin. The
second letter is one of 25 (I is not used) 100 km sub-squares within it:

ABCDE
FGHJK
LMNOP
QRSTU
VWXYZ

Many of these 100 km squares cover areas outwith the coastline so you'll
never see them on maps.

The overall distribution of the 500 Km squares is

H
NO
ST

So NS means go up 500 km from the origin to get to N, then another 100
km up to get to the relevant row of 100 km squares, and 200km to the
right to get to the right column of 100 km squares.

Within the 100 km square, a grid reference will give offsets from the
square's origin. A 10 figure reference (5 each for Eastings and
Northings, as a GPS gives) will give you number of meters along each
axis of the 100 kn square.

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net [email hidden] http://www.dundee.ac.uk/~pjclinch/

"Dominic Sexton" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

In article <[email hidden]>, John Smith
<[email hidden]> writes

Quoted message said:

"Peter Clinch" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

[email hidden] wrote:

> New to this. Can anyone tell me what an NS number is and how I can
> translate it to a geographical reference? e.g., NS 374613

See http://en.wikipedia.org/wiki/British_national_grid_reference_system

The "NS" is a 100 km square in the grid, within which you will have grid
eastings and northings to give your grid reference.

Thats OK but what does NS mean? Or for that matter NT! There must be a way
to translate these 100K Sq to an area surely;-)

JS

Here are the metre eastings and northings for the bottom left of each
100km square.

Sq Easting Northing
HL 0 1200000
HM 100000 1200000
HN 200000 1200000
HO 300000 1200000
HP 400000 1200000
HQ 0 1100000
HR 100000 1100000
HS 200000 1100000
HT 300000 1100000
HU 400000 1100000
HV 0 1000000
HW 100000 1000000
HX 200000 1000000
HY 300000 1000000
HZ 400000 1000000
NA 0 900000
NB 100000 900000
NC 200000 900000
ND 300000 900000
NE 400000 900000
NF 0 800000
NG 100000 800000
NH 200000 800000
NJ 300000 800000
NK 400000 800000
NL 0 700000
NM 100000 700000
NN 200000 700000
NO 300000 700000
NP 400000 700000
NQ 0 600000
NR 100000 600000
NS 200000 600000
NT 300000 600000
NU 400000 600000
NV 0 500000
NW 100000 500000
NX 200000 500000
NY 300000 500000
NZ 400000 500000
OV 500000 500000
SA 0 400000
SB 100000 400000
SC 200000 400000
SD 300000 400000
SE 400000 400000
SF 0 300000
SG 100000 300000
SH 200000 300000
SJ 300000 300000
SK 400000 300000
SL 0 200000
SM 100000 200000
SN 200000 200000
SO 300000 200000
SP 400000 200000
SQ 0 100000
SR 100000 100000
SS 200000 100000
ST 300000 100000
SU 400000 100000
SV 0 0
SW 100000 0
SX 200000 0
SY 300000 0
SZ 400000 0
TA 500000 400000
TF 500000 300000
TG 600000 300000
TL 500000 200000
TM 600000 200000
TQ 500000 100000
TR 600000 100000
TV 500000 0
TW 600000 0

Hurrah ;-) Looks correct ;-)

I want to convert it to co-ordinates to put into google maps to -see-
where it is as I live not far away 🙂

Thanks for all the replies, I think I can find my way now 🙂

Chandy

The message <[email hidden]>
from "John Smith" <[email hidden]> contains these words:

Quoted message said:

Quoted message said:

The "NS" is a 100 km square in the grid, within which you will have grid
eastings and northings to give your grid reference.

Quoted message said:

Thats OK but what does NS mean? Or for that matter NT! There must be a way
to translate these 100K Sq to an area surely;-)

There is some method in the madness but not as much as there was
originally when the National Grid was the sole preserve of the War
Office.

Take a 25000 km square. Subdivide it into 25 500 km squares and label
them consecutively from A to Z excluding I. Then subdivide each 500 km
square in the same manner. Within the 25000 km square each 100 km square
now has a unique 2 letter label.

The War Office put the false origin of their National Grid at the SW
corner of their 25000 km square. ie at the SW corner of the square VV.
When the OS extended the system to civilian maps they moved the true
origin of the grid a short distance and shifted the false origin much
further, to the SW corner of square SV. That change could of course have
been done out of bloody mindedness but it did mean that all of the
Northern half of mainland Britain (and the Western Isles) now fell in
square N and most of Southern Britain fell into square S. Almost all the
Northern Isles are orphaned in square H and the more Easterly part of
England in square T. I don't think St Kilda figured in either scheme.

Ireland had its own grid in the War Office scheme within one 500 km
square conveniently labelled with the missing I. Ireland still has a
grid of course but they have dropped the I so each 100 km square is
designated by a single letter. I don't know where the origins are but
there seems to have been little if any change in the position of the
Irish squares.

--
Roger Chapman

Adrian Godwin said:

Dominic Sexton said:

In article <[email hidden]>,
[email hidden] writes

Quoted message said:

New to this. Can anyone tell me what an NS number is and how I can
translate it to a geographical reference? e.g., NS 374613

Further reading should tell you all you need:

http://www.ordnancesurvey.co.uk/oswebsite/gi/nationalgrid/nghelp1.html
http://www.ordnancesurvey.co.uk/oswebsite/mapshop/
http://www.gps.gov.uk/

Or if you haven't got a suitable OS map and just want to know where
that reference is, go to www.streetmap.co.uk and put NS374613 in the
search box. No need to select from the options - just Search and a
map will appear with that point marked. Zoom out or in until it
shows at a useful scale.

-adrian

.... or multimap.

http://multimap.com/map/browse.cgi?lat=55.8175&lon=-4.5967&scale=25000&icon=x

BTW streetmap's arrow doesn't touch the target, you have to lok a little
SW of the tip.

Andy

Andy Champ said:

... or multimap.

http://multimap.com/map/browse.cgi?lat=55.8175&lon=-4.5967&scale=25000&icon=x

BTW streetmap's arrow doesn't touch the target, you have to lok a little
SW of the tip.

Andy

Or google maps 🙂

http://tinyurl.com/n6mm7

Can even see the stone 🙂

Craig