Immagine
 Trilingual World Observatory: italiano, english, română. GLOBAL NEWS & more... di Redazione
   
 
\\ Home Page : Articolo
ZeitNews: Global Map Reveals Water Supply.
By Admin (from 06/04/2011 @ 08:00:16, in en - Science and Society, read 1752 times)

Questions such as how much fresh water we have left on Earth, where it is located, and how we can access it are all nearly impossible to answer. However, scientists working on understanding and revealing the planet's surface structure are helping to hone in on an answer. University of British Columbia researchers have created a world's-first with their new map that outlines how fluid flows through Earth's various porous surfaces. Information gleaned from the map can help us discover more about water supplies worldwide.

According to Science Daily, the maps, published earlier this week in Geophysical Research Letters, could help with both water resource management and climate modeling, since a better understanding of how fluid permeates rock and sediments can reveal how and where rainwater travels as it flows into the water table. While most maps so far have dealt with permeability down to one or two meters of soil, and across smaller areas, this new map tracks permeability to depths of about 100 meters across the globe.

"This is the first global-scale picture of near-surface permeability, and is based on rock type data at greater depths than previous mapping," says Tom Gleeson, a postdoctoral researcher with the Department of Earth and Ocean Sciences.

Mapping groundwater supplies in such detail is important for managing use of water, especially in where and how much is extracted. Such water source mapping has helped recently in uncovering to what extent groundwater supplies in southern Asia are contaminated with arsenic. Researchers were able to create a 3D map to show that the deeper a well went for water, the more likely it was to be contaminated.

We still don't know exactly how much fresh water we have left, but we know it is shrinking and we are hitting (or have already hit) peak water, since we're draining aquifers, over-exploiting rivers, and dropping the groundwater table ever deeper.

Source: Treehugger

Articolo Articolo  Storico Storico Stampa Stampa  Share
Cannabis seeds, Autoflowering seeds, Greenhouse, Sweet Seeds, Dutch Passion
comments powered by Disqus
 
Nessun commento trovato. No comments found. Nici un comentariu găsit.

Anti-Spam: dial the numbers CAPTCHA
Text (max 5000 characters)
Nome - Name - Nume
Link ( OPTIONAL - visible on the site - NOT a must )


Disclaimer
Tuo commento sarŕ visibile dopo la moderazione. - Your comment will be visible after the moderation. - Comentariul tău va fi vizibil după moderare.
Ci sono 4851 persone collegate

< ottobre 2020 >
L
M
M
G
V
S
D
   
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 
             

Titolo
en - Global Observatory (605)
en - Science and Society (594)
en - Video Alert (346)
it - Osservatorio Globale (503)
it - Scienze e Societa (555)
it - Video Alerta (132)
ro - Observator Global (399)
ro - Stiinta si Societate (467)
ro - TV Network (149)
z - Games Giochi Jocuri (68)

Catalogati per mese - Filed by month - Arhivate pe luni:

Gli interventi piů cliccati

Ultimi commenti - Last comments - Ultimele comentarii:
Hi, it's Nathan!Pretty much everyone is using voice search with their Siri/Google/Alexa to ask for services and products now, and next year, it'll be EVERYONE of your customers. Imagine what you are ...
15/01/2019 @ 17:58:25
By Nathan
Now Colorado is one love, I'm already packing suitcases;)
14/01/2018 @ 16:07:36
By Napasechnik
Nice read, I just passed this onto a friend who was doing some research on that. And he just bought me lunch since I found it for him smile So let me rephrase that Thank you for lunch! Whenever you ha...
21/11/2016 @ 09:41:39
By Anonimo


Titolo





21/10/2020 @ 07:17:36
script eseguito in 883 ms