Navigation Links
Ocean conditions likely to reduce Colorado River flows during this winter's drought
Date:10/1/2010

e rings, Tingstad and MacDonald were able to reconstruct river flow and winter snowpack levels going back several hundred to almost 1,000 years for a mountainous region of northeastern Utah. Responsible for 10 percent to 15 percent of the flow in the river, the Uinta Mountains region has a climate representative of the upper Colorado River basin, the researchers say, so conditions experienced there are similar to those that occurred elsewhere in the upper basin.

The tree rings came from a combination of dead and living pinyon pines that grow on extremely dry slopes in the Uintas. Described by Tingstad as "listening posts for climate variability and drought," the trees produce annual rings that are so sensitive to water stress that the researchers can track changes in annual precipitation on the order of an inch by studying them under microscopes.

Tingstad and MacDonald then compared their records with existing records for La Nia, the Pacific Decadal Oscillation (PDO) and the Atlantic Multidecadal Oscillation (AMO). During a La Nia episode, the sea-surface temperature across the Pacific Ocean at the equator plummets by as much 18 degrees Fahrenheit, resulting in drops in precipitation rates of as much as 50 percent across the southwestern and southeastern United States for between five and 18 months.

The PDO is a pattern of climate variability with longer-term shifts that last between 20 and 30 years and also affect weather. A negative PDO is characterized by cooler sea-surface temperatures off the Pacific Coast of North America that can result in below-average precipitation in the southwestern U.S. The effect can be thought of as an extended La Nia event.

Each phase of the AMO can last for more than 60 years and is characterized by temperature changes in the North Atlantic Ocean. In its positive phase, the AMO has little impact on California weather if it occurs in absence of a negative PDO. But the positive AMO has bee
'/>"/>

Contact: Meg Sullivan
msullivan@support.ucla.edu
310-825-1046
University of California -- Los Angeles
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Why fish dont freeze in the Arctic Ocean
2. New Naked Scientists series investigates our oceans
3. Ancient microbes responsible for breathing life into ocean deserts
4. Scripps Oceanography biologists awarded prestigious honors
5. Oceans color affects hurricane paths
6. NOAA, IOOS partners deploy new ocean observational equipment near San Juan
7. Coastal creatures may have reduced ability to fight off infections in acidified oceans
8. Study finds deep, open ocean is vastly under-explored
9. Ice-free ocean may not absorb CO2, a component in global warming
10. Findings overturn old theory of phytoplankton growth, raise concerns for ocean productivity
11. Study suggests more fish than thought may thrive in the oceans depths
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... some hope: A new research report published in October ... , explains how scientists developed a synthetic version of ... development in human and mouse eggs similar to the ... during fertilization. , "We believe that the results of ... understanding of human fertilization by providing a precise answer ...
(Date:9/30/2014)... suite of perilous threats in today,s ocean. From ... change, fragile coral ecosystems are disappearing at unprecedented ... species of corals surrounding the island of Moorea ... their tropical environment: coral guard-crabs. New research from ... Station scientist Seabird McKeon and the museum,s predoctoral ...
(Date:9/29/2014)... Clostridium ramosum , coupled with a high-fat diet, may ... week in mBio , the online open-access journal of ... from the German Institute of Human Nutrition Potsdam-Rehbruecke in Nuthetal ... ramosum gained weight when fed a high-fat diet. Mice ... obese even when consuming a high-fat diet, and mice that ...
Breaking Biology News(10 mins):Synthetic sperm protein raises the chance for successful in vitro fertilization 2Smithsonian scientists discover coral's best defender against an army of sea stars 2Gut bacteria promote obesity in mice 2
... food safety and traceability will be showcased at a ... The Food Integrity and Traceability Conference will take place ... leading scientists, food standards regulators and agri-food producers from ... Institute for Global Food Security and from across the ...
... BRCA2 gene have a worse prognosis and lower survival rates ... This is the main conclusion to come out of a ... Oncology , in which David Olmos, Head of the Prostate ... National Cancer Research Centre (CNIO), has taken part in, along ...
... making the disease difficult to study. However, K9 bone ... the disease, and over 10,000 canine patients develop the ... Cancer Center and the Colorado State University Flint Animal ... used easily available K9 osteosarcoma samples to discover a ...
Cached Biology News:International conference will put agri-food supply chain under the microscope 2First genetic factor in prostate cancer prognosis identified 2AACR news: K9 osteosarcoma samples identify drivers of metastasis in pediatric bone cancer 2
(Date:10/2/2014)... 2014  CSSi ( www.CSSiEnroll.com ), the leader ... industry, is pleased to announce its participation in ... October.  President Chris Trizna will be ... Clinical Trials New England conference sponsored by Arena ... annual Site Solutions Summit sponsored by the Society ...
(Date:10/1/2014)... , Cambridge Semantics, the leading provider of Smart ... announced its participation in the 2014 Big Data Leaders ... provide semantic linkage and meaning to Big Data to ... diverse data. Ben Szekely, vice president and founding engineer ... sciences data lake” and an approach for collecting and ...
(Date:10/1/2014)... Weighing applications in pharmaceutical manufacturing ... product. However, while the pharmaceutical industry is one ... Good Manufacturing Practices (GMP) usually provide only broad ... to interpret these guidelines and assess process risks ... TOLEDO experts have created a new white paper, ...
(Date:10/1/2014)... The participants committed to not only creating ... own time adjusting, tweaking and testing virtual models and ... for judging. , “I enjoyed being involved as a ... “The entries showed a commendable range exploring the technical ... print medium and the creativity of the contestants.” , ...
Breaking Biology Technology:Patient Recruitment Expert CSSi to be Featured at Upcoming Industry Events 2Patient Recruitment Expert CSSi to be Featured at Upcoming Industry Events 3Cambridge Semantics to Present ‘A Useful Approach to Big Data’ at 2014 Big Data Leaders Forum 2Comply with Weighing-Related Regulations in Pharma Manufacturing 2Array Architects Challenges Staff to Create with 3D Printer 2
... ANTONY, France, July 10 , - 1st Half-Year Sales Up 16%, - Revision Upwards of 2008 Sales Growth Guidance: (greater than or equal,to)12%, EUR millions ... 07/06 2008 08/07 ... ... Europe (1) 20.5 72 23.2 72 13 26.8 71 ...
... July 10 Today,s Pharmaceutical Research,and ... to end the practice,of providing non-educational ... toward,enhancing the value of the physician/industry ... CMR Institute, a leading non-profit,organization dedicated ...
... July 10 Quest Diagnostics,Incorporated (NYSE: DGX ), ... announced today that its second-quarter,2008 results will be made ... that it will hold its quarterly conference call with ... on that day., The public may access the ...
Cached Biology Technology:Stallergenes: Q2 2008 Sales up 18% Revision Upwards of 2008 Sales Growth 2CMR Institute: Education Key to Physician/Representative Relationship 2Quest Diagnostics to Release Second Quarter 2008 Financial Results 2
Rabbit polyclonal to GABA A Receptor gamma 2 ( Abpromise for all tested applications). entrezGeneID: 2566 SwissProtID: P18507...
... Cyclin D2 is a G1 cyclin ... strong candidate for a proto-oncogene. cyclin ... cdk4 and/or cdk6. Species Reactivity: Human, ... NeoMarkers DCS-3.1 MAb is particularly well suited ...
Mouse monoclonal [4A2.2] to SLC6A4 ( Abpromise for all tested applications). entrezGeneID: 6532 SwissProtID: P31645...
V beta 5 Purified Anti-Human clone MH3-2, Isotype Mouse IgG 2a , kappa, 0.1 mg Consult technical datasheet for details....
Biology Products: