Navigation Links
NASA simulation portrays ozone intrusions from aloft
Date:4/10/2014

d can be fined, although the EPA can grant exceptions for natural events or those proven to be beyond reasonable control.

That's why ozone intrusions are on the minds of air quality managers like Patrick Reddy, lead forecast meteorologist at Colorado's Department of Public Health and Environment in Denver, Colo. Reddy co-leads the EPA Stratospheric Intrusion Work Group, tasked to identify ozone intrusion events and collect input for improved analysis.

The state of Colorado flagged the concentrations associated with the April 6 event as possibly exceeding the EPA's allowable threshold. Now it's up to Reddy and colleagues to determine if the intrusion on April 6 is a viable candidate for the preparation of documentation to be classified as an exceptional event.

"We need to use the best science that we can to demonstrate conclusively that 'but for' this intrusion there would not have been an exceedence," Reddy said.

Resolution Requirements

Reddy says it's fairly obvious when a stratospheric ozone intrusion has occurred, based on signatures in satellite data, air quality monitoring stations and meteorological data. For example, low water vapor, wind and high ozone at remote locations are often characteristic of stratospheric air.

Evidence of the intrusions, however, doesn't show up in the models currently used by air quality managers. Many of those models assume ozone moves from the stratosphere to the troposphere at a constant, average rate. This fails to capture the episodic intrusion events.

Meiyun Lin, an atmospheric scientist at Princeton University and NOAA's Geophysical Fluid Dynamics Laboratory (GFDL) in Princeton, New Jersey, set out to better quantify the impact of stratospheric ozone intrusions. Lin and colleagues used satellite and meteorological observations alongside a global chemistry-climate model to simulate intrusions in high-resolution.

Like the pixels in a photograph, the
'/>"/>

Contact: Kathryn Hansen
kathryn.h.hansen@nasa.gov
301-286-1046
NASA/Goddard Space Flight Center
Source:Eurekalert

Page: 1 2 3 4 5

Related biology news :

1. Computer simulations help explain why HIV cure remains elusive
2. New technique allows simulation of noncrystalline materials
3. Computer simulations for multiscale systems can be faster, better, more reliable
4. Computer simulations yield clues to how cells interact with surroundings
5. 3D simulation shows how form of complex organs evolves by natural selection
6. Ozone treated water v. lethal microbial material
7. Houston Clean Air Network offering real-time online ozone report
8. Ozones impact on soybean yield: Reducing future losses
9. University of Illinois receives grant to study ozone resistance in corn
10. Ozone levels have sizeable impact on worker productivity
11. 2 climate scientists win 2012 Vetlesen Prize for work on ozone hole, ice cores
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2015)... , Mar. 24, 2015 Research and Markets ... the "Global Iris Recognition Market 2015-2019" report ... Global Iris Recognition market to grow at a CAGR ... This report covers the present scenario and the growth ... period 2015-2019. To calculate the market size, the report ...
(Date:3/24/2015)... , March 24, 2015   NexID Biometrics ... critical security-authentication needs, today announced the beginning of shipments ... solution. The company, based in ... the three-day Connect:ID Expo, which began here today at ... said version 2.0 of its SDK boosts the accuracy ...
(Date:3/23/2015)... 2015 SoundView Technology Group issues a new research ... ) Wocket smart wallet. SoundView was one of the selected user ... with the Wocket in multiple scenarios and outlets. ... other retailers, making both debit and credit card payments.  ... "If the company meets their plans in 2015, it would ...
Breaking Biology News(10 mins):Global Iris Recognition Market 2015-2019 with 3M Cogent, Bioenable Technologies, Cross Match Technology, Iris ID Systems & Safran Dominating 2NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4
... Wistar Institute have deciphered the structure of the active ... role in the development of nearly all human cancers. ... of new, broadly effective cancer drugs, as well as ... a decade to find drugs that shut down telomerasewidely ...
... have long known to be related to each other women ... Now, a master switch has been found in the brain of ... Biological Studies say it may work the same way in humans. ... Aug. 31 online edition of Nature Medicine , suggest that ...
... was reached by the Alliance for a Healthier Generation ... on "competitive foods" such as soft drinks at schools. ... the availability of soft drinks at school may not ... children. In a study of more than 4,000 ...
Cached Biology News:Landmark study opens door to new cancer, aging treatments 2Landmark study opens door to new cancer, aging treatments 3New master switch found in the brain that regulates appetite and reproduction 2New master switch found in the brain that regulates appetite and reproduction 3New master switch found in the brain that regulates appetite and reproduction 4
(Date:4/17/2015)... 2015 /PRNewswire/ - SQI Diagnostics Inc. (TSX-V: SQD; OTCQX: ... develops and commercializes proprietary technologies and products for ... has received approval from the TSX Venture Exchange ... share purchase warrants ("the Warrants") of the Company, ... May 2013 private placement financing. Each ...
(Date:4/17/2015)... BellBrook Labs announced today that ... the powerful Orthogonal Pooled Screening (OPS) Platform developed ... the Lankenau Institute for Medical Research (LCGC) in ... improve successful drug discovery outcomes using far more ... libraries available nowhere else, coupled to a state-of-the-art ...
(Date:4/16/2015)... April 16, 2015 Capillus, LLC ... and physician network in Europe and Asia. The ... appointed Fernando Bermúdez, former Business Development Director of ... industry veteran, Mr. Bermúdez’s professional achievements include increasing ... Spain, while also penetrating the Portuguese marketplace with ...
(Date:4/16/2015)... OncoTAb, Inc., a University ... company, announced today the appointment of physician and ... Operating Officer (COO). Cooper brings to OncoTAb more ... diagnostic and biotechnology platforms in the fields of ... career transcends the field of medical and scientific ...
Breaking Biology Technology:SQI Diagnostics to Extend Warrant Expiry 2SQI Diagnostics to Extend Warrant Expiry 3BellBrook Labs and Lankenau Institute Partner to Accelerate Drug Discovery using Orthogonal Pooled Screening 2Capillus, LLC Extends Laser Hair Therapy Products to Europe and Asia 2OncoTAb Names Dr. David L. Cooper as COO 2
... Antidepressant Can Help Adults Living With ... Relief -(1), PRINCETON, N.J. and TOKYO, Nov. ... and Otsuka Pharmaceutical Co.,Ltd. announced today that the ... New Drug Application for ABILIFY(R),(aripiprazole) as adjunctive, or ...
... BB: CLBE), an emerging life sciences company ( http://www.CalbaTech.com ... stem cells for,possible future therapeutic uses and providing products ... to academic,institutions, said today in its 10Q filing with ... be profitable in 2007. The addition of sales ...
... will present at the Piper Jaffray 19th Annual Healthcare ... Pierre Hotel in New York. John L.,Bishop, Chief Executive ... Chief Financial Officer, will provide a corporate overview. ... be,accessed on Cepheid,s Web site at http://www.cepheid.com ...
Cached Biology Technology:U.S. Food and Drug Administration Approves ABILIFY(R) (aripiprazole) as the First Medication for Add-On Treatment of Major Depressive Disorder (MDD) 2U.S. Food and Drug Administration Approves ABILIFY(R) (aripiprazole) as the First Medication for Add-On Treatment of Major Depressive Disorder (MDD) 3U.S. Food and Drug Administration Approves ABILIFY(R) (aripiprazole) as the First Medication for Add-On Treatment of Major Depressive Disorder (MDD) 4U.S. Food and Drug Administration Approves ABILIFY(R) (aripiprazole) as the First Medication for Add-On Treatment of Major Depressive Disorder (MDD) 5U.S. Food and Drug Administration Approves ABILIFY(R) (aripiprazole) as the First Medication for Add-On Treatment of Major Depressive Disorder (MDD) 6U.S. Food and Drug Administration Approves ABILIFY(R) (aripiprazole) as the First Medication for Add-On Treatment of Major Depressive Disorder (MDD) 7U.S. Food and Drug Administration Approves ABILIFY(R) (aripiprazole) as the First Medication for Add-On Treatment of Major Depressive Disorder (MDD) 8U.S. Food and Drug Administration Approves ABILIFY(R) (aripiprazole) as the First Medication for Add-On Treatment of Major Depressive Disorder (MDD) 9CalbaTech Files Nine Month Financial Results; Anticipates Profitability in 2007 2CalbaTech Files Nine Month Financial Results; Anticipates Profitability in 2007 3Cepheid to Present at the Piper Jaffray 19th Annual Healthcare Conference 2
... Topo I, Wild Type ... Tris-HCl, 1 mM DTT, 200 µM EDTA, 20% ... topoisomerase I (Topo I) is a monomeric protein ... gene. It catalyzes the relaxation of both positive ...
RNase-Free DNase 50 l...
Request Info...
... is a DNA-dependent RNA polymerase which is ... It efficiently synthesizes in vitro transcripts from ... from a T7 promoter. Transcripts can ... in vitro translation, substrates in RNA processing ...
Biology Products: