[Talk-br] Estados Unidos libera arquivos de fronteira internacional com maior precisão Fwd: [OSM-talk] Fw: Updated, more detailed international bdy. shapefiles (US Dept. of State Office of the Geographer)

Fernando Trebien fernando.trebien em gmail.com
Terça Junho 18 22:13:28 UTC 2013


Oi Arlindo,

Me parece que a versão oficial das fronteiras é a disponibilizada pelo
LNCC (http://info.lncc.br), então eu recomendo comparar com essa fonte
de dados. O LNCC tem outras coisas interessantes, como a posição dos
marcos de fronteira (boundary stones), que também podem ser importados
no OSM (mais a título de curiosidade).

Uma das vantagens do LNCC é a descrição textual da fronteira, que
permitiria dar nomes a vários elementos geográficos usados para
referência (como rios, morros, estradas, lagos, ilhas, etc.).

On Tue, Jun 18, 2013 at 5:21 PM, Arlindo Pereira
<openstreetmap em arlindopereira.com> wrote:
> Se alguém quiser trabalhar na importação de fronteiras internacionais, um
> órgão governamental dos EUA liberou um arquivo em domínio público com
> precisão supostamente maior que o que temos atualmente no OSM.
>
> []s
> Arlindo Pereira
>
> ---------- Forwarded message ----------
> From: Mikel Maron <mikel_maron em yahoo.com>
> Date: Sun, Jun 16, 2013 at 10:09 AM
> Subject: [OSM-talk] Fw: Updated, more detailed international bdy. shapefiles
> (US Dept. of State Office of the Geographer)
> To: "talk em openstreetmap.org" <talk em openstreetmap.org>
>
>
> Of interest to those of us working on boundaries. Some recent updates
> geographers at US State.
> -Mikel
>
> * Mikel Maron * +14152835207 @mikel s:mikelmaron
>
> ----- Forwarded Message -----
> Sent: Friday, June 7, 2013 5:10 PM
> Subject: Updated, more detailed international bdy. shapefiles (US Dept. of
> State Office of the Geographer)
>
> All,
>
>     I have you all on my list of folks interested in detailed international
> boundary lines.*
>
>      An update to our worldwide Large Scale International Boundaries (LSIB
> version 5) can be found as of today at http://HIU.state.gov (under “data”,
> down near the bottom (“June 2013 LSIB v. 5”, 17mb.))   This data set is in
> the public domain; no restrictions on its use.  It includes update such as
> an approximation of last month’s ICJ ruling on Burkina Faso-Niger’s
> boundary.
>
>      Also, after many requests, Kate Schaefer (in our sister “HIU” branch)
> and I put together last fall a worldwide country polygon file as well, which
> most closely matches the Sept. 2012 version (LSIB4b) of our international
> lines.  It is posted in the same place.
>
>     We’re fortunate in this office (intact here at DoS since 1921) to have
> or have easy access to voluminous maps, treaties, and other international
> boundary information from the past 150 years.  We are also fortunate that
> our colleagues in DoD (NGA) and in the UK (DGC) have been researching and
> digitizing international boundaries since the late 1990’s; we continue to
> work closely today.  That’s given us a pretty good head start on quality
> control for the world’s 320-some international land boundaries.
>
>     Considering the caveats in the attached doc (i.e., we follow US govt.
> policies; certainly anyone else using this data set can change it to conform
> to their own policies), we always welcome from professional geographers like
> yourselves  any corrections, suggestions, questions on international land
> (not maritime!) boundaries, their history, alignments, lengths, etc.
>
> all the best,
> Dave
>
> *if that’s not or no longer the case, let me know
>
>
>
>
>
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-- 
Fernando Trebien
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"The speed of computer chips doubles every 18 months." (Moore's law)
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