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:

(Date:6/26/2016)... Michigan (PRWEB) , ... June 26, 2016 , ... On ... as sponsor of the 2016 Cereal Festival and World’s Longest Breakfast Table in Battle ... honor of the city’s history as home to some of the world’s leading providers ...
(Date:6/25/2016)... Washington, D.C. (PRWEB) , ... June 25, 2016 ... ... will discuss health policy issues and applications at AcademyHealth’s Annual Research Meeting June ... share their work on several important health care topics including advance care planning, ...
(Date:6/25/2016)... ... 2016 , ... As a lifelong Southern Californian, Dr. Omkar Marathe earned his ... David Geffen School of Medicine at UCLA. He trained in Internal Medicine at Scripps ... in hematology/oncology at the UCLA-Olive View-Cedars Sinai program where he had the opportunity to ...
(Date:6/24/2016)... Marne, Michigan (PRWEB) , ... June 24, 2016 , ... ... To deal with these feelings, many turn to unhealthy avenues, such as drug or ... Center of Marne, Michigan, has released tools for healthy coping following a traumatic event. ...
(Date:6/24/2016)... ... June 24, 2016 , ... Dr. ... accelerated orthodontic treatment. Dr. Cheng has extensive experience with all areas of orthodontics, ... and accelerated osteogenic orthodontics. , Micro-osteoperforation is a revolutionary adjunct to orthodontic ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... , June 26, 2016 ... care operating models within the health care industry is ... financial efficiency , Deloitte offers a suite of ... business issues impacting efficient cost optimization: labor resource analysis, ... These services facilitate better outcomes and better economics ...
(Date:6/24/2016)... FRANCISCO, Calif. , June 24, 2016 /PRNewswire/ ... ), a biopharmaceutical company developing novel therapeutics for ... unmet needs, today announced the closing of its ... of common stock, at the public offering price ... in the offering were offered by GBT. GBT ...
(Date:6/24/2016)... , June 24, 2016 ... of the "Structural Electronics 2015-2025: Applications, Technologies, ... In-Mold Electronics, Smart Skin, ... Photovoltaics Structural electronics involves electronic ... load-bearing, protective structures, replacing dumb structures such as ...
Breaking Medicine Technology: