Navigation Links
Desert Droughts Shorten Mountain Snow Cover, Reveals Study

A new study by American geologists has indicated that wind blown dust from drought-stricken and disturbed lands in the Southwest can shorten the duration of mountain snow cover hundreds of miles away in the Colorado mountains by roughly a month.

The study found that seasonal snow coverage in the sub-alpine and alpine areas of the San Juan Mountains of southwestern Colorado disappeared by about 30 days earlier in 2006 because of heavy dust deposition from the Colorado Plateau roughly 200 miles away.

The dust, which probably came from northeast Arizona and northwest New Mexico deserts, reduced the snows reflectivity, allowing more of the suns energy to warm the snow pack and cause it to melt earlier, researchers said.

The connection between dust and lower snow reflectance is already established, but the amount of impact measured and modelled in this system stunned us, said Tom Painter from the University of Colorado at Boulders National Snow and Ice Data Centre, who led the study.

The fact that dust can reduce snow cover duration so much a month earlier -- transforms our understanding of mountain sensitivity to external forcings, he said.

Findings further revealed that while just three or four significant dust deposition events occurred annually in the San Juan Mountains between 2003 and 2005, eight occurred in 2006.

In 2006, the sub-alpine regions of the San Juans melted out 24 to 35 days earlier, Painter said, quoting ground measurements and computer simulations.

Recent studies agree that with global warming, the Southwest will be warmer and drier. Enhanced dust deposition is likely, further shortening snow cover duration. Ultimately, a warming climate and the dust it generates will affect river run-off and soil moisture in the mountains, not only in the Western United States but across many of the worlds mountains, Painter added.

The findings appear onl ine in the June 23 issue of the Geophysical Research Letters.


'"/>




Related medicine news :

1. Rocket Factory Is Under The Risk Of Desert Fire In San Fernando
2. Melioidosis Disease Warning After Heavy Desert Rain
3. Common Desert Shrub may Increase Longevity
4. Desertification, a Major Threat, Says UN
5. Painkillers Do Not Shorten Dying Patients Lives
6. Males Lifespan Shortened By Elevated Levels Of Testosterone
7. Missing Link Stem Cells may Shorten Path to Therapies
8. Mountain biking connected to infertility
9. Spread Of Rocky Mountain Spotted Fever Is A Probability, Say Experts
10. Mountain Biking Results In Serious Injuries
11. Antioxidants Could Halt Rocky Mountain Spotted Fever
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/19/2017)... ... August 19, 2017 , ... Physician Partners ... Orlando location as an interventional pain management physician. He brings a wealth of ... of migraine headaches, and significant experience in spinal cord stimulation for chronic pain. ...
(Date:8/18/2017)... ... August 18, 2017 , ... More than 20,000 pairs of ... Congo (DRC) thanks to an ambitious venture that conjoined the passions of an NBA ... support of the Liberty community. These shoes will save lives from the rampant infections ...
(Date:8/18/2017)... ... August 18, 2017 , ... ... campaign, advocating for active, healthy lifestyles and highlighting the importance of proactive eye ... hearing impairments and shares the latest innovations in hearing aid technology. , ...
(Date:8/18/2017)... ... August 18, 2017 , ... ... handheld devices. Through an educational webinar, they will present the line of epMotion ... to learn how easy you can automate everyday pipetting tasks. , Ideal for ...
(Date:8/18/2017)... ... August 18, 2017 , ... Radabaugh ... protection assistance to communities in North-Central West Virginia, is embarking on a cooperative ... boys in the area. , The Chestnut Mountain Ranch (CMR) is a Christ-centered ...
Breaking Medicine News(10 mins):
(Date:8/17/2017)... ANGELES , Aug. 17, 2017 MJAC2017 ... CBMJ – Canna Broadcast Media, today reveals its leading lineup. ... Isodiol International Inc., a global cannabis innovator specializing in the ... sponsor of the conference. MassRoots, Rambridge™ and The Green Organic ... Bay Inc. and Namaste Vapes™ as silver sponsors. ...
(Date:8/17/2017)... Aug. 17, 2017 Bio-Ess Laboratories, LLC Chief Science Officer, Dr. ... and present new data on Cell-Ess® Universal Titer Boost at ... Boston, MA August 21-25.  The Bioprocessing Summit convenes more than ... ... ...
(Date:8/15/2017)... , Aug. 15, 2017 Diplomat Pharmacy, Inc. ... Michigan residents. Naloxone ... Flint retail pharmacy, G-3320 Beecher Road. ... the Food and Drug Administration, is intended to block ... slowed breathing, and loss of consciousness. The medication is ...
Breaking Medicine Technology: