[Geo4All] asking for help

[labrinos at eled.auth.gr]

Thank you very much Christian.
That was really helpful.
Is wikipedia a trusted site? I mean, can we proceed in the future with  
a publication based on data from wikipedia?

regards
Nikos


Παραθέτοντας από Christian Willmes <c.willmes at uni-koeln.de>:

> Hello,
>
> This is an interesting question, which I asked myself also recently.
>
> I would prefer plate tectonics as the ground for defining  
> continents, but this is not a Law. ;) In the according Wikipedia  
> article [1] you can find a nice map, which clarifies at least the  
> border between Asia and Africa, that is through the Red Sea and  
> Jordan valley (east of Sinai). Arabia has its own plate, but  
> geographically it is part of Asia.
>
> For Europe and Asia, this is more complicated, because Eurasia is  
> one large tectonic plate. According to the German Wikipedia article  
> [2], there is no international law based definition of this border.  
> But you will find two maps showing borders in this article, based on  
> different historic definitions.
>
> I would propose to define the inner Eurasian border based on River  
> catchments or Hydrobasins. HydroSHEDS [3] draws the border between  
> Europe and Asia, where the Volga (Europe) and the Ob (Asia) Basins  
> meet. Further south, I would go west of Caspian Sea through the  
> Caucasus to the Black Sea through the Bosporus... but this is not  
> clearly defined as fa as I know?
>
> Best regards,
> Christian
>
> [1] https://en.wikipedia.org/wiki/Plate_tectonics
>
> [2] https://de.wikipedia.org/wiki/Eurasien
>
> [3] https://www.hydrosheds.org/page/hydrobasins
>
> Am 02.11.18 um 08:33 schrieb labrinos at eled.auth.gr:
>>
>> Dear GeoForAll members,
>>
>> In the context of an undergraduate thesis, a student of mine is  
>> looking for the official borders between continents.
>> The "problem" rises between Europe and Asia, Asia and Africa.
>> Can you show me references and/or links where I can find official  
>> documents regarding the borders between these areas?
>> I understand that in many cases it is a matter arranged between  
>> countries (except Russia where the borders divide the country into  
>> European and Asian part and Turkey where Vosporus separates the two  
>> continents) because the borders between countries form the borders  
>> between continents.
>> I would appreciate any idea and help.
>>
>> Thank you very much
>> Nikos Lambrinos
>>
>>
> -- 
> Dr. Christian Willmes
> AG GIS & Fernerkundung      | GIS & RS Group
> Geographisches Institut     | Institute of Geography
> Universität zu Köln         | University of Cologne
> Tel.: +49 (0)221 470 6234
> http://www.geographie.uni-koeln.de/14126.html
> http://www.sfb806.de
> http://crc806db.uni-koeln.de
> http://publons.com/a/1316706/
> http://orcid.org/0000-0002-5566-6542
>
> _______________________________________________
> GeoForAll mailing list
> GeoForAll at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/geoforall



-- 
Δρ. Νίκος Λαμπρινός
Καθηγητής της Διδασκαλίας της Γεωγραφίας
Τμήμα Δημοτικής Εκπαίδευσης
Α.Π.Θ. 54124 Θεσσαλονίκη
Τηλ.: 2310 991201 / 991230
Email: labrinos at eled.auth.gr
Web Page: http://users.auth.gr/labrinos/
	  http://www.digital-earth.edu.gr/
	  https://www.auth.gr/univUnits

---------------------------------------------------------------------
Dr. Nikos Lambrinos
Professor of Geography Teaching
Director of Digital Analysis and Educational Design Laboratory
President of the Hellenic digital earth Centre of Excellence
Faculty of Education
School of Primary Education
Dept. of Science and New Technologies
Aristotle University of Thessaloniki
GR-54124 Thessaloniki, Greece
Tel: +30 2310 991201
Email: labrinos at eled.auth.gr
Web Page:     http://users.auth.gr/labrinos/
	      http://www.digital-earth.edu.gr/
	      https://www.auth.gr/en/univUnits