River data wanted

GRASS GRASS user
1

Thanks to everyone who sent suggestions. I still have not found a simple
rivers layer to use. Does the DCW contain this? How can I find more
about it? There are some datasets of river flow available, BTW, but this
is both more and less than I need.

Its not free, but the Digital Chart of the World is inexpensive (US$150 IIRC).

The data is in Vector Product Format (VPF), comes on 4 CDs, and includes documentation and some DOS programs and C code for using the data.

There are some copyright/licensing issues on some of the data (UK, New Zealand & Australia).

I think it was put together by the USGS in the early 90s. In Australia this is available from AUSLIG; have no idea about European distribution.

- - - - - - - - - - - - - - Original Message - - - - - - - - - - - - - -
From: <bob@math.umn.edu>
Subject: River data wanted
Date: 11/06/99 05:23

Hi.

I'm looking for a "rivers of the world" scale data set, something for
students to use, i.e. low-resolution is fine. Are there any free
on-line sources?

Adios,
Chris
--
C.S. Cornuelle
School of Mathematics/MCIM, University of Minnesota
206 Church St. SE, Minneapolis, MN 55455
(612) 626-8930v, (612) 624-2333f, bob@math.umn.edu
Ferventer Vestite

2

Hi Bob

Actually the answer was in Juhana Nieminen´s reply, but to be more
speciphic, you can find rriver data with scale 1:2 mil in adress

http://crusty.er.usgs.gov/coast/getcoast.html

It is there as World Data bank II.

If you load it as matlab data, it is actually ASCII with missing values
spacial for matlab. You have to change that. Also there is the option
to download data as Arc/info gen files. There is help how to convert
gen files to GRASS under
http://www.geog.uni-hannover.de/grass/faq/e00_import.html

Seppo Kaitala

bob@math.umn.edu wrote:

Thanks to everyone who sent suggestions. I still have not found a simple
rivers layer to use. Does the DCW contain this? How can I find more
about it? There are some datasets of river flow available, BTW, but this
is both more and less than I need.

> Its not free, but the Digital Chart of the World is inexpensive (US$150 IIRC).
>
> The data is in Vector Product Format (VPF), comes on 4 CDs, and includes documentation and some DOS programs and C code for using the data.
>
> There are some copyright/licensing issues on some of the data (UK, New Zealand & Australia).
>
> I think it was put together by the USGS in the early 90s. In Australia this is available from AUSLIG; have no idea about European distribution.
>
> - - - - - - - - - - - - - - Original Message - - - - - - - - - - - - - -
> From: <bob@math.umn.edu>
> Subject: River data wanted
> Date: 11/06/99 05:23
>
>
> Hi.
>
> I'm looking for a "rivers of the world" scale data set, something for
> students to use, i.e. low-resolution is fine. Are there any free
> on-line sources?

Adios,
Chris
--
C.S. Cornuelle
School of Mathematics/MCIM, University of Minnesota
206 Church St. SE, Minneapolis, MN 55455
(612) 626-8930v, (612) 624-2333f, bob@math.umn.edu
Ferventer Vestite

--

Seppo Kaitala Ph. D. in Biology
University of Helsinki
Department of Ecology and Systematics
Division of Environmental Biology
P.O. Box 44 (Jyrängöntie 2, Botanical Garden)
FIN-00014, Finland
tel. +358 9 19140059, fax. +358 9 19140033
email: seppo.kaitala@helsinki.fi