Advanced Search »

Newsletter


	We expect major site improvements soon. To be informed of important news about our site, enter your email here. Of course, you can always unsubscribe later. Your address will not be released to others.

Unsubscribe »

National Science Foundation Award #0421016

Development of a Multi-Axis Differential Optical Absorption Spectrometer for Measurements of Trace Gases in the Polar Troposphere

Investigator(s):

Roger Bales (PI) ; Jochen Stutz (Co-PI)

Sponsor:

University of California - Merced, CA 95344 2097244318

Start Date/Expiration Date

2004-08-01 to 2009-07-31 (amended 2004-07-30)

Awarded Amount to Date:

$477,039

Abstract: The Arctic environment is undergoing rapid changes, possibly due in part to anthropogenic causes. A number of these changes involve interaction with, and possibly feedback from, the atmosphere, so it is particularly important to investigate and monitor processes that could amplify atmospheric change. Complex exchange processes in the ocean-ice-atmosphere system often influence the levels of important atmospheric trace gases, such as the hydroxyl radical and ozone, and trace species are also photochemically transformed or produced within the sunlit snowpack. Because changes in Arctic atmospheric circulation are cyclic over 4-5 year or longer times, long-duration measurements are needed to understand circulation and to place observed changes in a long-term perspective. This proposal will include the development of a new generation of multi-axis differential optical absorption spectroscopy (MAX-DOAS) instruments to continually measure concentrations of the important trace species formaldehyde (HCHO), nitrous acid (HONO), nitric oxide (NO2), and halogen oxides in the Arctic. The instrument will augment ongoing observations at the Summit Greenland Environmental Observatory (GEOSummit), located at an elevation of 3100 m on the Greenland ice sheet. GEOSummit is currently the only high-altitude site for atmospheric and related measurements in the Arctic. The proposal has a strong broader impacts, especially in the area of education

NSF Org:

OPP - Office of Polar Programs

Award Number:

0421016

Award Instrument:

Standard Grant

Program Manager:

Dennis Conlon
OPP Office of Polar Programs
OPP Office of Polar Programs

NSF Program(s):

MAJOR RESEARCH INSTRUMENTATION, OCEANOGRAPHIC INSTRUMENTATION

Field Application(s):

Polar Programs-Related

Program Reference Code(s):

ARCTIC RESEARCH, 1079
UNASSIGNED, 0000

Program Element Code(s):

1189
OCEANOGRAPHIC INSTRUMENTATION, 5413