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:12/10/2014)... 2014 You,ve been here before: you desperately need ... your password, site key or the answer to your secret ... teacher? Today, Hoyos Labs , a ... will finally put an end to the frustration that comes ... . 1U leverages a user,s smartphone to acquire his or ...
(Date:12/10/2014)...     Jifflenow ...   Jifflenow, a leading provider ... business-to-business (B2B) events, today announced a partnership with ... communication (NFC), Bluetooth low energy (BLE), and cloud-based ... Jifflenow will integrate its meeting scheduling ...
(Date:12/3/2014)... , Dec. 2, 2014 As part of ... Inception Technologies is pleased to announce the release of ... customers to collect the workforce data that they need. ... have been left by existing readers. Many such devices ... connectivity and modern technology. Older models force users to ...
Breaking Biology News(10 mins):The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3Inception Technologies to Release New Biometric Reader 2
... Health announced today that it will fund 22 grants ... modifications to genes that result from diet, aging, stress, ... human diseases and biological processes. The awards ... of the NIH Roadmap for Medical Research,s Epigenomics Program. ...
... Prevention Institute at Kansas State University is being honored ... Prevention Roundtable. The K-State institute,s intern program has ... award, also called the MVP2 award, as the best ... Sept. 22, in Washington, D.C. The award is ...
... Calif., September 15, 2009 -- Researchers at the ... that reactive oxygen species, such as superoxide and ... invadopodia, cellular protrusions implicated in cancer cell migration ... director of the Tumor Microenvironment Program at Burnham,s ...
Cached Biology News:NIH funds grantees focusing on epigenomics of human health and disease 2NIH funds grantees focusing on epigenomics of human health and disease 3NIH funds grantees focusing on epigenomics of human health and disease 4K-State Pollution Prevention Institute's intern program named best 2Reactive oxygen's role in metastasis 2
(Date:12/19/2014)... December 18, 2014 Today, ... its pilot production facility and future company headquarters ... produce innovative new materials that safely and effectively ... only because of its historic, strong support for ... to attract leading edge, technology-based companies such as ...
(Date:12/19/2014)... 2014 In contrast to traditional LED ... various colors, Valoya uses proprietary LED technology to incorporate ... possible uniformity which is critical in low proximity installations. ... accuracy throughout its lifetime which is up to four ... , "The investment cost was clearly higher when compared ...
(Date:12/19/2014)...   ISN has released its third annual ... publication series. With data aggregated from over eight ... within its online contractor management platform, ISNetworld, this three-part ... (KPI) statistics. The Contractor ... is available in two industry specific volumes: Oil ...
(Date:12/17/2014)... (PRWEB) December 17, 2014 Achim Noack ... administration for Stoller Group. In this position, Noack will ... on administrative matters, develop marketing strategy and supervise global ... , “Achim has tremendous knowledge and experience in ... Stoller Group. “His experience and innovative thinking will be ...
Breaking Biology Technology:Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 2Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 4ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 2ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 3Achim Noack Joins Stoller Group as Global Vice President of Marketing and Administration 2
... TEL-AVIV, Israel, October 17 TopSpin Medical,(TASE: TOPMD), ... MRI,using an IntraVascular MRI (IVMRI) catheter for the ... Ph.D., as Vice President,Clinical Affairs. Dr. Setum ... research in,the medical device industry. She has a ...
... Oct. 17 Poniard,Pharmaceuticals, Inc. (Nasdaq: PARD ... that its lead product candidate, picoplatin,has been granted ... cell lung cancer (SCLC) by the European Commission. ... Committee for Orphan Medicinal,Products (COMP) of the European ...
... GenVault announced today that,the Henry C. Witelson Ocular ... purchased a Personal Archive biosample management system.,The laboratory ... will be a critical component of the Laboratory,s,research ... as uveal,melanoma and retinoblastoma and for developing new ...
Cached Biology Technology:TopSpin Medical Appoints Cindy Setum, Ph.D., Vice President Clinical Affairs 2Poniard Pharmaceuticals Announces European Commission Grants Orphan Medicinal Product Designation to Picoplatin for Treatment of Small Cell Lung Cancer 2Poniard Pharmaceuticals Announces European Commission Grants Orphan Medicinal Product Designation to Picoplatin for Treatment of Small Cell Lung Cancer 3Poniard Pharmaceuticals Announces European Commission Grants Orphan Medicinal Product Designation to Picoplatin for Treatment of Small Cell Lung Cancer 4McGill University Purchases GenVault's Personal Archive System to Manage Rare Cancer Samples 2
... Dyad thermal cycler is a flexible ... chassis accommodates a variety of interchangeable ... hold different types and numbers of ... with point-and-click navigation. Peltier heat pumps, ...
MiniCycler thermal cycler with Hot Bonnet heated lid, holds 25x0.2ml tubes...
For demonstration of Helicobacter pylori...
... SR-101 Labeled Substrates (red fluorescence; Ex=590 ... serine protease activation • No lysing, ... Kits utilize cell-permeable, fluorescently labeled inhibitors ... chymotrypsin-like activity in whole living cells. ...
Biology Products: