Navigation Links
AGU journal highlights -- Dec. 31, 2008
Date:1/2/2009

structures influence larger-scale phenomena. For instance, previous studies have demonstrated that the structure, dynamics, and evolution of thunderstorms are very sensitive to cloud microphysical parameters. However, those studies used resolutions too coarse to resolve tornadoes or tornado-like circulations and were therefore not able to study the sensitivity of tornadogenesis to microphysics. Snook and Xue have now conducted simulations of severe tornadic thunderstorms using a grid of 100-meter (328-feet) spacing. They find that when the sizes of rain and hail drops are large, weaker cold pools due to reduced evaporative cooling/melting over smaller geographic regions result. Such weak cold pools are found to produce conditions that enhance low-level rotation. The authors' simulations show that strong, sustained vertical updrafts are positioned near and above the low-level circulation centers, providing strong dynamic lifting and vertical stretching to the air at the lower levels, which favors the creation of tornadoes.

Title: Effects of microphysical drop size distribution on tornadogenesis in supercell thunderstorms.

Authors: Nathan Snook and Ming Xue: School of Meteorology and Center for Analysis and Prediction of Storms, University of Oklahoma, Norman, Oklahoma, U.S.A.

Source: Geophysical Research Letters (GRL) paper 10.1029/2008GL035866, 2008; http://dx.doi.org/10.1029/2008GL035866


3. Speediest sand dunes clocked from space

Monitoring the speeds of migrating dunes and the volumes of sand transported over time is important to understanding how arid landscapes respond to wind-driven changes. Traditionally, scientists have monitored such changes through detailed field surveys or long-term surveillance of stakes planted in dune fields. Vermeesch and Drake have developed a new and more convenient approach to monitoring the speed a
'/>"/>

Contact: Peter Weiss
pweiss@agu.org
202-777-7507
American Geophysical Union
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10

Related biology news :

1. News tips from the Journal of Neuroscience
2. Tips from the Journals of the American Society for Microbiology
3. Story ideas from the Journal of Lipid Research
4. Highlights from the September 2007 Journal of the American Dietetic Association
5. AGU journal highlights -- Sept. 6, 2007
6. Springer will publish Journal of Coastal Conservation
7. ESA celebrates 100 years of insect science journals
8. Springer and the New York Botanical Garden Press join forces to publish botanical journals
9. 200 journals join in theme issues on poverty and human development
10. New ETH Zurich article published in scientific journal Nature
11. Media highlights in the November issues of Biophysical Journal
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/24/2014)... -- Keryx Biopharmaceuticals, Inc. (Nasdaq:KERX) (the "Company") announced the ... Phase 3 study of Zerenex (ferric citrate), the Company,s ... of hyperphosphatemia in patients with end-stage renal disease (ESRD) ... delivery with FErric CiTrate in EsrD) was published online ... of Nephrology ( JASN ). , ...
(Date:7/24/2014)... has different effects on different species of fish, ... of Bristol and Exeter which tested fish anti-predator ... a flying seagull predator model when exposed to ... European minnows. , Lead author Dr Irene ... "Noise levels in many aquatic environments have increased ...
(Date:7/24/2014)... own microbial terroir, meaning the microbial populations found on ... product, creating the final flavor according to research published ... Environmental Microbiology . This is the first time investigators ... , Many sake makers inoculate with both bacteria ... the University of California, Davis, but he and his ...
Breaking Biology News(10 mins):Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 4The microbes make the sake brewery 2
... is pleased to announce the winners of its 2009 ... Plenary Session of the ESA Annual Meeting in Indianapolis, ... be presented on Tuesday, December 15, 7:00-8:00 p.m. ... with full biographies and photos available at http://www.entsoc.org/resources/press_releases/2009-awards.htm ...
... recently completed a comparative analysis of marine ecosystems in ... factors support fisheries production, leading to new insights that ... Known as MENU, for Marine Ecosystems of Norway and ... NOAA Fisheries Service,s Northeast Fisheries Science Center and Alaska ...
... The University of North Carolina at Chapel Hill is ... part of an unprecedented large-scale, collaborative effort by the National ... (NHGRI) to systematically characterize the genomic changes that occur in ... a five-year award, expected to bring $13 to $20 million ...
Cached Biology News:Entomological Society of America names 2009 award winners 2Joint US-Norwegian study provides new insights into marine ecosystems and fisheries production 2Joint US-Norwegian study provides new insights into marine ecosystems and fisheries production 3UNC awarded Cancer Genome Atlas grant 2
(Date:7/24/2014)... by group leader Yung-Eun Sung has announced that ... and nitrogen-doped graphenes which can be applied as ... cells. Yung-Eun Sung is both a group leader ... for Basic Science* (IBS) and a professor at ... great significance with regards to the development of ...
(Date:7/24/2014)... Yushan Yan, Distinguished Professor of Engineering at the ... nanomaterials to solve problems in energy engineering, environmental ... focused on zeolites, porous rock with a well-defined, ... size is so precisely decided that zeolites can ... fraction of an angstrom (one-tenth of a nanometer), ...
(Date:7/24/2014)... , July 24, 2014 Research and ... "Global Cell Culture Market 2014-2018" report to their ... Cell culture is the in vitro growth of ... research, cell studies, and biopharmaceutical production. Cell culture is ... Cell culture instruments and cell culture consumables are necessary ...
(Date:7/24/2014)... 2014 Your cell phone may ... lithium-ion battery storage capacity. , New research indicates ... model created at Lawrence Livermore National Laboratory ... how carbon components will perform as electrodes. , ... urgent need for higher-performance batteries. Several key characteristics ...
Breaking Biology Technology:University of Delaware researcher describes new approach for creating organic zeolites 2Global Cell Culture Market 2014-2018: Key Vendors are Becton, Dickinson and Co, EMD, GE Healthcare, Lonza Group, Sigma Aldrich and Thermo Fisher Scientific 2Getting More Life out of Lithium-ion Batteries 2
... - Ranked Number 7 out of top 20 Employers ... 9 EMD Serono, Inc., an affiliate,of Merck KGaA, ... Science magazine as a top employer in the biotechnology ... 20 employers,across the life sciences., "We are honored ...
... (Nasdaq: ERES ), a leading provider of ... to the pharmaceutical,biotechnology, medical device, and related industries, ... quarter results for the period ended,September 30, 2008 ... closes.,After the release, the Company will host a ...
... Million RMB Commercial Bank Loan With Interest Payment ... Biotech Ltd. (Amex:,SVA), a vaccine-focused biotech company in ... Promotion Association at the,Zhongguancun Science and Technology Park ... of that program, Sinovac Biotech Co. Ltd.,s,("the Company") ...
Cached Biology Technology:EMD Serono Named as a Top Employer by Science Magazine 2eResearchTechnology, Inc. to Announce 2008 Third Quarter Results on October 30, 2008 2Sinovac's Credit Rating Upgraded to AAZ, Second Highest Rating 2Sinovac's Credit Rating Upgraded to AAZ, Second Highest Rating 3
RAB32, member RAS oncogene family, mRNA (cDNA clone MGC:13500 IMAGE:4280407), complete cds...
EDTA, 0.5 M solution, 100 ml. Ethylene diaminetetraacetic acid.Sterile, nuclease-free. Category: Nucleotides & Enzymes & Biochemicals, Ultrapure Biochemicals ....
Human VEGF-D Biotinylated MAb (Clone 78923)...
One-step, microplate or cuvet, colorimetric, linear detection range 0.2 mg/dL to 20 mg/dL. Procedure: 20 min....
Biology Products: