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:11/18/2014)... , Nov. 18, 2014  The Secure Identity ... Association today jointly announce the formation of The ... of its Identity and Biometric Entry and ... Framework received official support from BORDERPOL, the international ... improve and provide expertise regarding border security, traveler ...
(Date:11/18/2014)... BETHESDA, Md. , Nov. 17, 2014 The ... European and U.S. regulatory agencies will speak and at least ... Quality Metrics Conference at the Omni Shoreham Hotel in ... is pleased once again to have significant support from the ... and Europe in our effort to ...
(Date:11/15/2014)... YORK , Nov. 13, 2014  While we may ... technology Doctor McCoy used in "Star Trek" to gain instant ... tools designed to work with smartphones and tablets for monitoring ... of the healthcare world. This may seem a tad Orwellian ... ready to adopt some of these technological opportunities into their ...
Breaking Biology News(10 mins):Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4
... like houses, need building materials for their walls. And as ... at just the right moment to protect and allow the ... of the global Ludwig Institute for Cancer Research (LICR) has ... but has also conducted proof-of-principle studies that indicate taking away ...
... coloured males because they are easier to see and ... following her study of fish speciation in the East ... preference and eventually to speciation. , Evolutionary theory ... different characteristics in males. Yet females often pay attention ...
... word pollen to most people and it triggers thoughts of ... Alberta researcher has found an important spin-off for this fine ... from the Department of Biological Sciences at the U of ... pollen on boreal lakes. Rich in nutrients, pollen is an ...
Cached Biology News:Choosy females make colourful males 2
(Date:11/26/2014)... SoundConnect , an award winning ... announce that Darren Suders has joined the team as ... drive the partner program through innovative offerings, ... , Darren brings more than 10-years of channel telecommunication ... channel operations, from policy development, to partner education and ...
(Date:11/26/2014)... /PRNewswrie/ -- Theravalues Corporation annuncia con orgoglio il lancio ... di Hi Europe 2014 (dal 2 al 4 dicembre, ... della curcumina con la maggiore biodisponibilità di sempre, con ... approvati dalle norme europee. La curcumina è ... ( Curcuma longa ) che è stata associata con ...
(Date:11/24/2014)... , Belgium , Nov. 24, 2014 ... sciences company focused on developing diagnostic tests for cancer and ... cancer study will be presented at the Science for Business ... Belgium . The data come from VolitionRx,s ... at the Pneumology department of the Centre Hospitalier Universitaire (CHU) ...
(Date:11/24/2014)... (PRWEB) November 24, 2014 2014 ... Dihydrazide Industry is a professional and in-depth research ... Adipic Dihydrazide information, like its definition, classification, application, ... overview. This report covers the international market analysis, ... (such as the US, Europe, Asia, China, Japan ...
Breaking Biology Technology:SoundConnect Appoints Director of Channel Development & Sales 2La curcumina con la maggiore biodisponibilità di sempre farà il suo debutto in Europa 2La curcumina con la maggiore biodisponibilità di sempre farà il suo debutto in Europa 3VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 2VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 3VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 4VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 5VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 6Adipic Dihydrazide Industry 2019 Research Forecasts on Worldwide, China Regions Now Available at ReportsnReports.com 2Adipic Dihydrazide Industry 2019 Research Forecasts on Worldwide, China Regions Now Available at ReportsnReports.com 3
... , , , BOULDER, ... LENA Autism Screen (LAS) to 91 percent for children 24 to 48 ... is now as accurate or more accurate than other autism screens currently ... http://www.newscom.com/cgi-bin/prnh/20090210/LA69114 ) , , "We,re thrilled with this leap ...
... , , , ... NGSX ), a biopharmaceutical company focused on developing and ... and Chief Executive Officer, is scheduled to present at two upcoming ... Healthcare Conference, to be held September 9 - 11th, 2009, and ...
... , , , ... in vivo imaging from research through medicine, announced today the ... measuring and monitoring apoptosis and cell death in vivo . ... established Annexin labeling standard in in vitro research. It is ...
Cached Biology Technology:Advancement Made in Automatic Autism Screen Increases Accuracy to 91%, Scheduled for Release This Month 2Advancement Made in Automatic Autism Screen Increases Accuracy to 91%, Scheduled for Release This Month 3NeurogesX to Present at Upcoming Fall Conferences 2NeurogesX to Present at Upcoming Fall Conferences 3NeurogesX to Present at Upcoming Fall Conferences 4VisEn Launches New Annexin-Vivo 750 Fluorescence Molecular Imaging Agent 2VisEn Launches New Annexin-Vivo 750 Fluorescence Molecular Imaging Agent 3
... kit allows for quick and reproducible immunoprecipitation (IP) ... system is more reproducible than regular IPs, which ... A/G agarose without disrupting the agarose bed. The ... Release is reversible, and elution of the immune ...
... locking design in ice/water bath This ... number, created to easily match Cornings ... yet, please order under the old ... service for assistance. ID clarifier: rack ...
Kit containing MACS equipment and reagents for immunopurification of proteins....
... software offers an intuitive, easy-to-use ... control, diverse data handling, and ... Comprehensive functions include data acquisition, ... management in both standalone and ...
Biology Products: