Computer Science – Sound
Scientific paper
Apr 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17..611h&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 17, April 1990, p. 611-614.
Computer Science
Sound
3
Arctic Regions, Atmospheric Composition, Concentration (Composition), Nitric Oxide, Satellite Sounding, Annual Variations, Diurnal Variations, Measuring Instruments, Noaa Satellites
Scientific paper
Nitric oxide (NO) and total reactive nitrogen NO(y) were measured at the NOAA Geophysical Monitoring for Climatic Change baseline site near Barrow, Alaska, during July-August 1988. Concentrations of NO(y) in air from the clear-air sector ranged from nondetectable to 300 ppt (hourly-average), with a median value of 100 ppt. NO concentrations were generally less than the detection limit of 50 ppt and reached a maximum of 100 ppt. These levels are similar to those observed at other remote sites, and are lower than the two previous measurements of NO(y) and peroxyacetyl nitrate (PAN) in the Arctic during spring. A diurnal cycle in NO(y) concentrations was also observed, with maximum levels near local solar noon and minima near midnight.
Honrath Richard E.
Jaffe Dan A.
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