Google
Official Google Earth Download Site

Google Earth Community
You are not logged in. [Login] Entrance · Main Index · Search · Active Topics
New user · Who's Online · FAQ · KML Reference · GE Guide

Earth >> Huge and Unique
Previous topic Previous   View all topics Index   Next topic Next   Threaded Mode Threaded  

Jump to first unread post. Pages: 1
sasroodkapje
Collection Editor


Reged: 05/27/06
Posts: 2066
Loc: Holland
Qanat, Farah, Afganistan.
      #451967 - 06/14/06 06:52 PM

View in Google Earth         View in Google Maps (173 downloads)

Qanat, Farah, Afganistan.

Qanats are constructed as a series of well-like vertical shafts, connected by gently sloping tunnels. This technique:

Taps into subterranean water in a manner that efficiently delivers large quantities of water to the surface without need for pumping. The water drains relying on gravity, with the destination lower than the source, which is typically an upland aquifer.
Allows water to be transported long distances in hot dry climates without losing a large proportion of the source water to seepage and evaporation.
It is very common in the construction of a qanat for the water source to be found below ground at the foot of a range of foothills of mountains, where the water table is closest to the surface. From this point, the slope of the qanat is maintained closer to level than the surface above, until the water finally flows out of the qanat above ground. To reach an underground aquifer qanats must often be of extreme length.



--------------------
Take care,,, before you are Amused To Death

Keep on searching, keep on posting, and most important,, Have fun .



Edited by sasroodkapje (11/28/07 01:10 AM)

Post Extras: Print Post   Remind Me!   Report this Post  
Arizona_Rick
Tourist


Reged: 10/30/07
Posts: 12
Re: bomb craters in adganistan [Re: sasroodkapje]
      #1061471 - 11/27/07 10:13 PM

What I see looks more like signs of qanats (under ground water canals). Looks like the typical access holes dug at interval.

See this Wikipedia article for more in depth info on the subject:

http://en.wikipedia.org/wiki/Qanat

Post Extras: Print Post   Remind Me!   Report this Post  
sasroodkapje
Collection Editor


Reged: 05/27/06
Posts: 2066
Loc: Holland
Re: bomb craters in adganistan [Re: Arizona_Rick]
      #1061566 - 11/28/07 12:34 AM

Thanks Rick.

Its a old post,, i know now thes are qanats, I change the post,,

Thanks and greetings.

--------------------
Take care,,, before you are Amused To Death

Keep on searching, keep on posting, and most important,, Have fun .



Post Extras: Print Post   Remind Me!   Report this Post  
Felippo
Collection Editor


Reged: 07/18/05
Posts: 1335
Loc: Hameln, Germany
Re: bomb craters in adganistan [Re: sasroodkapje]
      #1062870 - 11/30/07 04:11 AM

Hello

Here are some pictures: Quanat

Greetings Felippo

--------------------

Post Extras: Print Post   Remind Me!   Report this Post  
Pages: 1


Previous topic Previous   View all topics Index   Next topic Next   Threaded Mode Threaded  


Extra information
0 registered and 3 anonymous users are browsing this forum.

Moderator:  Jumble, Hill, Kempster, mcshea98, jeffryv, dulce, esterrett, NormB, Frank_McVey, BeadieJay, TheLedge, Cyclonic, no_stranger, LuciaM, tekgergedan, Noisette, danescombe, Michal_Drewniak, freezer_magnet, mutex 

Print Topic

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Topic views: 1077

Rate this topic

Jump to

earth.google.com    bbs.keyhole.com

*
UBB.threads™ 6.5.1.1