[Proj] Lease block definition

Campbell Smith campbell.smith at gmail.com
Mon Sep 1 10:58:49 EDT 2008

I think that the UK and Norwegian blocks are based on fractions of
lat/long in ED50 rather than sensible UTM.

Other countries may be different.

On 01/09/2008, Gerald I. Evenden <geraldi.evenden at gmail.com> wrote:
> A few weeks ago the item of oil lease blocks came up as an item to be
> plotted
> on extended range TM maps.  My encounter with lease blocks was only as a
> short spectator of someone digitizing the irregular shore boundaries of said
> lease blocks.
> My understanding is that the lease block boundaries are established in terms
> of UTM grid coordinates?  If so, what are the typical side lengths in
> meters?
> My recollection was that one of the reasons for selecting TM for large area
> mapping was because of "facilitating" the plotting of lease blocks.  True,
> false?
> Any information related to what has been done or proposed for large region
> mapping with TM would be appreciated.
> --
> The whole religious complexion of the modern world is due
> to the absence from Jerusalem of a lunatic asylum.
> -- Havelock Ellis (1859-1939) British psychologist
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