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:6/24/2017)... ... ... Doorknobs are for convenience, deadbolts are for security. , There are many ... an alarm system installed. But unless there is a working deadbolt lock that is ... Premier Locksmith in Killeen, TX says: “In the majority of home burglaries, intruders use ...
(Date:6/23/2017)... , ... June 24, 2017 , ... Studies show evidence ... reduce the risk of visual loss in these patients. , But how often do ... or smoking cessation to patients at risk of or with early symptoms of AMD? ...
(Date:6/23/2017)... ... ... Goodcents Deli Fresh Subs today announced the opening of a new restaurant ... Topeka, Kan. 66604 (near 21st and Gage). It is owned and operated by long-time ... in the Topeka and Bonner Springs, Kan. area. , “Goodcents has such a ...
(Date:6/23/2017)... ... June 23, 2017 , ... MD Now Urgent Care ... MD Now’s 28th facility overall and marks the urgent care center's eighth location in ... North of The Falls shopping mall. The new clinic offers a wide array of ...
(Date:6/23/2017)... ... June 23, 2017 , ... The Katyl Agency, ... to families and business owners in and around Lackawanna County, is joining Meals ... in the area. , Meals on Wheels of NEPA provides hand-delivered and nutritious ...
Breaking Medicine News(10 mins):
(Date:6/9/2017)... June 9, 2017 AirXpanders, Inc. (ASX: AXP) ... the design, manufacture, sale and distribution of the AeroForm® ... progress of its commercial roll-out in the ... more than one hundred (100) medical institutions and health ... offers a needle-free alternative for women who choose reconstructive ...
(Date:6/8/2017)...  Less than a month ago, amateur hackers executed ... including hospital networks, in over 150 countries. ... largest online extortion attempts ever recorded. With the increasing ... imperative that providers understand where the risks lie, and ... and many other very real cyber threats.  ...
(Date:6/8/2017)... , June 8, 2017  StatLab ... leading developer and manufacturer of diagnostic supplies ... today that Cressey & Company LP ("Cressey ... has completed a growth-focused investment in the ... majority ownership position from selling shareholder, Prairie ...
Breaking Medicine Technology: