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:6/11/2015)... , June 11, 2015 Daon, a ... today that its IdentityX Mobile Authentication Platform v4.0 ... Online) Alliance is an industry consortium launched in ... for simpler, stronger authentication.  In order to receive ... a rigorous series of tests that measure compliance ...
(Date:6/9/2015)... Minn. , June 9, 2015   MedNet ... supports the entire spectrum of clinical research, will be ... eClinical technology platform at the 2015 Drug Information Association ... on June 15-17.  These presentations will include previews ... rolled out in the upcoming iMedNet 2015 ...
(Date:6/8/2015)... -- Trovagene, Inc. (NASDAQ: TROV ), a developer of cell-free ... Cancer Monitoring SM platform will be presented at the ... San Diego, CA on June 11-12 , ... Genomics and Cancer Therapy in Salt Lake ... "We continue to advance our clinical programs and present data ...
Breaking Biology News(10 mins):Daon's IdentityX Mobile Authentication Platform One of First Products to be Certified by FIDO Alliance 2MedNet To Provide Sneak Peeks Of Its iMedNet "2015 Feature 1 Release" At The DIA Annual Meeting 2MedNet To Provide Sneak Peeks Of Its iMedNet "2015 Feature 1 Release" At The DIA Annual Meeting 3Clinical Data Featuring Trovagene's Urine-Based Liquid Biopsy Platform to be Presented at Two Upcoming Medical Conferences 2Clinical Data Featuring Trovagene's Urine-Based Liquid Biopsy Platform to be Presented at Two Upcoming Medical Conferences 3Clinical Data Featuring Trovagene's Urine-Based Liquid Biopsy Platform to be Presented at Two Upcoming Medical Conferences 4
... Ariz. A group of researchers from Arizona State University ... in the study of human proteins that could open up ... work is being reported in this week,s Science ... G-protein-coupled receptors," the team reports that they have been successful ...
... forests, a Michigan State University (MSU) sustainability scholar proposes a ... fall in China, can you hear it elsewhere in the ... Pacific Policy Studies , MSU,s University Distinguished Professor Jianguo "Jack" ... and expand its forests even as its cities and population ...
... presence of male sperm and seminal fluid causes female worms to ... week in the journal Science . The demise of the ... the mating pool for other males. The researchers found ... to dehydrate, prematurely age and die. "Their lifespans are ...
Cached Biology News:ASU researchers develop new device to help image key proteins at room temperature 2ASU researchers develop new device to help image key proteins at room temperature 3Telecoupling science shows China's forest sustainability packs global impact 2Mating is the kiss of death for certain female worms 2Mating is the kiss of death for certain female worms 3
(Date:6/30/2015)... VANCOUVER , June 30, 2015 /PRNewswire/ - ... a clinical stage regenerative medicine company focused on ... the first participant in its Phase 1/2 clinical ... of chronic unilateral Achilles tendinosis, has been enrolled ... to intra-tendon ultrasound-guided injections. RCT-01 is comprised of ...
(Date:6/30/2015)... Florida (PRWEB) , ... June 30, 2015 , ... ... cannabis digital media company, launched “Cannavoices,” an unprecedented digital video and broadcast ... largest but also the most dynamic collection of legal medical cannabis stories ever ...
(Date:6/29/2015)... ... ... The global microfluidics market is expected to grow at ... The market is mainly driven by the rising geriatric population, growing Asian healthcare ... adequate healthcare and research infrastructure in emerging markets, dearth of skilled professionals in ...
(Date:6/29/2015)...  Neuralstem, Inc. (NYSE MKT: CUR), a biopharmaceutical company ... and cell therapy treatments for central nervous system diseases, ... on the NASDAQ Capital Market under the symbol "CUR." ... the NYSE MKT until the market close on July ... expected to commence on July 13, 2015. ...
Breaking Biology Technology:RepliCel Life Sciences Enrolls First Participant in Phase 1/2 Clinical Trial of RCT-01 for Chronic Achilles Tendinosis 2RepliCel Life Sciences Enrolls First Participant in Phase 1/2 Clinical Trial of RCT-01 for Chronic Achilles Tendinosis 3RepliCel Life Sciences Enrolls First Participant in Phase 1/2 Clinical Trial of RCT-01 for Chronic Achilles Tendinosis 4Cannavoices Launches a Legal Medical Cannabis Documentary Initiative 2Cannavoices Launches a Legal Medical Cannabis Documentary Initiative 3Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 2Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 3Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 4Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 5Neuralstem, Inc. Announces Approval for Listing on the NASDAQ Capital Market 2Neuralstem, Inc. Announces Approval for Listing on the NASDAQ Capital Market 3
... Group, Inc.,released its third annual TreatmentTrends(TM): The Use ... the management of,Rheumatoid Arthritis (RA), Psoriatic Arthritis (PsA), ... responses to an online survey,completed by 100 US ... study, the majority of Rheumatologists reported an,increase in ...
... CryoLife, Inc. (NYSE: CRY ),a biomaterials, medical ... scheduled to participate in the upcoming UBS Global Life,Sciences ... York City., D. Ashley Lee, executive vice president, ... will present Wednesday,September 24 at 2:30 p.m., Eastern Time., ...
... Conn., Sept. 17 MannKind Corporation,(Nasdaq: MNKD ) ... States,Food and Drug Administration to use AFRESA as the ... uh-FRESS-uh) was unveiled today by Alfred Mann,Chairman and Chief ... Danbury, Conn., location that marked the completion and,dedication of ...
Cached Biology Technology:Use of Biologic Agents Continues to Expand Among US Rheumatologists - Can New Agents Shift the Treatment Paradigm in Rheumatoid Arthritis? 2CryoLife to Present at UBS Global Life Sciences Conference 2MannKind Unveils Proposed Trade Name at Dedication of Danbury Manufacturing Facility 2MannKind Unveils Proposed Trade Name at Dedication of Danbury Manufacturing Facility 3
... Sigma-Genosys offers custom peptide synthesis with a wide ... best fit your research needs. Purity: ... Yield: 2mg-1g Sequence Length: ... Biotin, Fluorescein, N-acetylation, C-amidation, phosphorylation, D-amino acids, MAPs, ...
... liquid handling system from Molecular Devices provides ... one instrument. The system handles a variety ... washing96-, 384- and 1536-welland is the first ... has been optimized to dispense from four ...
A univariate (peak height or area) quantitative multi-component analysis package....
... micro 1 is a dramatic breakthrough in accurate, ... with 10nL resolution, the micro 1 has unique ... And, the micro 1 never needs re-calibration as ... Screen programming on an LCD Display , Graphical ...
Biology Products: