Tree-ring data gives history of droughts

Aug 21, 2005

Tree-ring data gives researchers a better idea of drought history in the Western United States.

Using data from tree rings, University of Arizona researchers conclude the water supply for the Upper Colorado, Salt and Verde river basin fluctuated in synchrony -- at the same time -- during periods of severe drought. The study goes back almost 800 years in the Salt-Verde basin and covers waterways from the states of Arizona, Colorado, New Mexico, Utah and Wyoming.

"Prior to the findings from this study, the conventional wisdom was that runoff from the Colorado River would be available to make up for deficits on the Salt and Verde rivers during times of extreme drought," said Charlie Ester, Salt River Project's manager of Water Resource Operations.

"The bottom line is that the Upper Colorado Basin and the Salt and Verde basins work together as one entire region."

Copyright 2005 by United Press International

Explore further: Explainer: How to solve a jewel heist (and why it takes so long)

Related Stories

Recommended for you

Top UK scientists warn against EU exit

May 22, 2015

A group of leading British scientists including Nobel-winning geneticist Paul Nurse warned leaving the European Union could threaten research funding, in a letter published in The Times newspaper on Friday.

How we discovered the three revolutions of American pop

May 22, 2015

Dr Matthias Mauch discusses his recent scientific analysis of the "fossil record" of the Billboard charts prompted widespread attention, particularly the findings about the three musical "revolutions" that shaped the musical la ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.