Navigation Links
NOAA aircraft to probe arctic pollution
Date:4/7/2008

NOAA scientists are now flying through springtime Arctic pollution to find out why the region is warming - and summertime sea ice is melting - faster than predicted. Some 35 NOAA researchers are gathering with government and university colleagues in Fairbanks, Alaska, to conduct the study through April 23.

The Arctic is changing before our eyes, said A.R. Ravishankara, director of the chemistry division at NOAAs Earth System Research Laboratory in Boulder, Colo. Capturing in detail the processes behind this large and surprisingly rapid transformation is a unique opportunity for understanding climate changes occurring elsewhere.

Observations from instruments on the ground, balloons, and satellites show the Arctic is warming faster than the rest of the globe. Summer sea-ice extent has decreased by nearly 40 percent compared to the 19792000 average, and the ice is thinning.

Industry, transportation, and biomass burning in North America, Europe, and Asia are emitting trace gases and tiny airborne particles that are polluting the polar region, forming an Arctic Haze every winter and spring. Scientists suspect these pollutants are speeding up the polar melt.

Called ARCPAC (Aerosol, Radiation, and Cloud Processes affecting Arctic Climate Change), the project is a NOAA contribution to International Polar Year 2008. The experiment will be coordinated with the agencys long-term climate monitoring station at Barrow, Alaska, and with simultaneous projects conducted by NASA and the Department of Energy.

This is our first airborne deployment of a powerful new suite of instruments in the Arctic, said ARCPAC lead scientist Dan Murphy, also of NOAAs Earth System Research Laboratory. When we analyze all the data, well be able to piece together the equivalent of a high-def movie of the atmosphere as springtime sunlight warms the region and sparks a chain of chemical reactions.

Scientists aboard the NOAA WP-3D research aircraft will use nearly 30 airborne sensors to answer questions about airborne particles, altered clouds, low-altitude ozone, and soot deposited on snow. All are produced or affected by human activities and may be playing key roles in the rapid warming.

In a related study, also taking place this month, the NOAA-led International Chemistry Experiment in the Arctic Lower Troposphere (ICEALOT) will gather shipboard measurements of atmospheric fine particles and trace gases in the air above the North Greenland and Barents seas, which are closer to sources than the ARCPAC study area. NOAA scientists are eager to compare the pollution north of Alaska with the more recent emissions near Europe.


'/>"/>

Contact: Anatta
anatta@noaa.gov
303-497-6288
NOAA Headquarters
Source:Eurekalert

Related biology news :

1. New Delft material concept for aircraft wings could save billions
2. Using nanotubes to detect and repair cracks in aircraft wings, other structures
3. NOAA invests $3 million for unmanned aircraft system testing
4. Comet probes reveal evidence of origin of life, scientists claim
5. TAU scientists probe deep questions aboard EcoOceans environmental research ship
6. Studying component parts of living cells with carbon nanotube cellular probes
7. New MIT tool probes brain circuits
8. Researchers probe a DNA repair enzyme
9. Astronomy technology brings nanoparticle probes into sharper focus
10. Team probes mysteries of oceanic bacteria
11. Texas researchers and educators head for Antarctica
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/6/2017)... Forecasts by Product Type (EAC), ... End-Use (Transportation & Logistics, Government & Public Sector, Utilities ... Generation Facility, Nuclear Power), Industrial, Retail, Business Organisation (BFSI), ... you looking for a definitive report on the $27.9bn ... ...
(Date:4/3/2017)... 2017  Data captured by IsoCode, IsoPlexis ... a statistically significant association between the potency ... and objective response of cancer patients post-treatment. ... whether cancer patients will respond to CAR-T ... as to improve both pre-infusion potency testing and ...
(Date:3/28/2017)... 28, 2017 The report "Video ... Monitors, Servers, Storage Devices), Software (Video Analytics, VMS), and ... Global Forecast to 2022", published by MarketsandMarkets, the market ... is projected to reach USD 75.64 Billion by 2022, ... The base year considered for the study is 2016 ...
Breaking Biology News(10 mins):
(Date:8/16/2017)... ... August 16, 2017 , ... ... Food and Drug Administration (FDA) inspection at our Dilworth, MN site. The inspection ... issued. This inspection was conducted as part of a routine Bioresearch Monitoring Program ...
(Date:8/15/2017)... After spending the past two years building a state-of-the-art technology which ... offers this platform to healthcare stakeholders (hospitals, foundations, biopharma companies etc.) ... collection vis a vis their members, under their own brand. Three ... offer. ... ...
(Date:8/15/2017)... ... August 15, 2017 , ... Pittcon is ... for analytical and scientific instruments. This year’s symposium, organized by the Pittcon 2018 ... Spectrometry for Bioanalytical Applications.” This dynamic presentation will discuss novel ionization processes, high ...
(Date:8/15/2017)... ... August 15, 2017 , ... The Conference Forum ... 360° (IO360°) programming through a series of upcoming panels and events. The partnership culminates ... at The Roosevelt Hotel in New York City. , “With our experience in producing ...
Breaking Biology Technology: