Navigation Links
Dirty snow causes early runoff in Cascades, Rockies
Date:1/12/2009

simulate snowpack in global models. The Cascades have lost 60 percent of their snowpack since the 1950s, most of that due to rising temperatures. We wanted to see if we could quantify the impact of soot."

Their simulations compared well to data collected on snowpack distribution and water runoff. But their first experiment did not include all sources of soot, so they modeled what would happen if enough soot landed on snow to double the loss of brightness. In this computer simulation, the regional climate and snowpack changed significantly, and not in a simply predictable way.

Overall, doubling the dimming of the snow did not lead to twice as high temperature changes -- it led to an approximate 50 percent increase in the snow surface temperature. The drop in snow accumulation, however, more than doubled in some areas. Snowpack over the central Rockies and southern Alberta, for example, dropped two to 50 millimeters over the mountains during late spring and early winter. The most drastic changes occurred in March, the model showed.

The team also found that soot decreased snow's brightness in two ways. About half of soot's effect came from its dark color. The other half came indirectly from reducing the size of the snowpack, exposing the underlying darker earth.

Studies like this one start to unmask pollution's role in the changing climate. While greenhouse gases work unseen, soot bares its dark nature, with a cloak that slowly steals summertime's snow.


'/>"/>

Contact: Mary Beckman
mary.beckman@pnl.gov
509-375-3688
DOE/Pacific Northwest National Laboratory
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Dirty air brings rain -- then again, maybe not
2. Myth about dirty old men supported by science
3. Dune and dirty: Hurricane teaches lessons through ecosystem research
4. Hidden interactions between predators and prey: evolution causes cryptic dynamics in ecology
5. Grubs passion for plastic causes water loss
6. St. Jude identifies the specific cell that causes eye cancer, disproving long-held theory
7. Influenza vaccine causes weaker immune response for children of rural Gabon than in semi-urban areas
8. First-ever study: lack of critical lubricant causes wear in joints
9. NIH selects LIAI for major study on allergy molecular causes and possible treatments
10. USC researchers explore genetic causes for male infertility
11. What are the causes and consequences of childhood obesity?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Dirty snow causes early runoff in Cascades, Rockies
(Date:7/11/2014)... Wildlife Conservation Society shows that no-take zones in ... such as lobster, conch, and fish recover from ... areas. , The reporttitled "Review of the Benefits ... literature from no-take areas around the world. The ... recognized expert in marine protected areas and fisheries ...
(Date:7/11/2014)... 11, 2014--Researchers at the Department of Energy,s Oak ... awards, presented by R&D Magazine in recognition of ... awards recognize the tremendous value of our National ... and development at the National Labs continues to ... pursue the scientific and technological innovations necessary to ...
(Date:7/11/2014)... were many fires burning in eastern New South Wales, ... 11. , At 03:35 UTC on July 11 (12:35 ... Aqua passed over eastern New South Wales (NSW), the ... visible image of the region and spotted smoke (light ... MODIS,s thermal bands, are outlined in red. , The ...
Breaking Biology News(10 mins):Belize's lobster, conch, and fish populations rebuild in no-take zones 2ORNL wins eight R&D 100s 2ORNL wins eight R&D 100s 3ORNL wins eight R&D 100s 4
... OTO EXPO of the American Academy of Otolaryngology Head ... nose, and throat doctors in the world, will convene September ... 305 scientific research sessions, 594 posters, and several hundred instruction ... opportunity for journalists from around the world to cover breaking ...
... Carolina State University researcher has shown that water-gel-based solar ... cells to produce electricity. The findings prove the concept ... They also have the potential to be less expensive ... solar cells. The bendable devices are composed of ...
... determined that teenagers who have abortions are no more likely ... whose pregnancies do not end in abortion. The study ... California, San Francisco, is the first to use both depression ... of adolescents. The researchers found that young women in ...
Cached Biology News:2010 AAO-HNSF miniseminars: Sunday, Sept. 26, 2010 22010 AAO-HNSF miniseminars: Sunday, Sept. 26, 2010 3Mimicking nature, water-based 'artificial leaf' produces electricity 2National study: Abortion does not cause depression or low self-esteem in adolescents 2National study: Abortion does not cause depression or low self-esteem in adolescents 3
(Date:7/11/2014)... PALM BEACH, Fla. , July 11, 2014 /PRNewswire-iReach/ ... variety of high-quality peptides that are used solely in ... To honor two successful years in business, Maxim Peptide, ... LLC, has just launched a new and updated website ... the research blog section has been updated with fascinating ...
(Date:7/11/2014)... July 11, 2014 , Not for ... into or from any jurisdiction where to do so would ... Shire plc ("Shire" or the "Company") (LSE: SHP, ... afternoon.  Shire confirms it has held a meeting with representatives ... Shire without the prior agreement or approval of AbbVie. ...
(Date:7/11/2014)... July 11, 2014 Research and Markets ... Technology Market - Global Industry Analysis, Size, Share, Growth, ... offering. http://photos.prnewswire.com/prnh/20130307/600769 ... acids (either DNA or RNA) into cells. This technology ... cancer cells and protein metabolism by affecting the nuclear ...
(Date:7/11/2014)... July 11, 2014 BCC Research ( ... DIGITAL POLYMERASE CHAIN REACTION (PCR) TECHNOLOGY: GLOBAL MARKETS , ... technology reached nearly $140 billion in 2013. This is ... a five-year compound annual growth rate (CAGR) of 28.6%. ... of interesting and exciting possibilities within the broader PCR ...
Breaking Biology Technology:Maxim Peptide Celebrates Second Anniversary Online with an Updated Website and Special Deals Section 2Shire plc - Statement re: Media Speculation 2International Transfection Technology Market - Industry Analysis, Size, Share, Growth, Trends and Forecast to 2019 2Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 2Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 3
... 11 Amicus Therapeutics,(Nasdaq: FOLD ), today announced ... at the 5th Annual Lazard Capital Markets Healthcare,Conference in ... p.m. EST., A webcast and audio archive of ... at http://www.amicustherapeutics.com . Participants,should allow approximately five to ...
... a privately-held,biopharmaceutical company focused on developing novel cancer ... viral vector, today announced,that executive management will participate ... to be held November 10 through November 12,2008 ... York City. Frank D. Stonebanks,President and Chief Executive ...
... Calif., Nov. 11 Cord Blood,America, Inc. (OTC ... preservation company ( http://www.cordblood-america.com ) focused on,bringing the ... nationwide and,internationally, said today that the stem cell ... Obama intends to use his executive,authority to reverse ...
Cached Biology Technology:Cord Blood America Salutes President-Elect Obama's Promise to Lift Restrictions on Stem Cell Research 2
Mouse Anti-Amyloid beta [1-16], clone 6E10, Monoclonal Antibody...
The pCDF Expression System 1 plus Competent Cells contains 10 µg of pET-45b(+) DNA. pET-45b carries an N-terminal His•Tag ® coding sequence that is cleavable with enterokinase as well...
Nucleobindin 1 [NUCB1]...
Request Info...
Biology Products: