Aircraft measurements of tracer correlations in the Arctic subvortex region during the Polar Stratospheric Aerosol Experiment (POLSTAR)
Total reactive nitrogen (NOy ), ozone (O 3 ), the tracer nitrous oxide (N 2 O), and carbon monoxide (CO) were measured in situ as part of the Polar Stratosphere Aerosol Experiment (POLSTAR 1 and 2). In total, 14 missions were performed in January and February 1997 and 1998 in the Arctic subvortex re...
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ftdlr:oai:elib.dlr.de:9210 2024-09-15T17:50:39+00:00 Aircraft measurements of tracer correlations in the Arctic subvortex region during the Polar Stratospheric Aerosol Experiment (POLSTAR) Ziereis, H. Schlager, H. Fischer, H. Feigl, C. Hoor, P. Marquardt, R. Wagner, V. 2000 https://elib.dlr.de/9210/ unknown Ziereis, H. und Schlager, H. und Fischer, H. und Feigl, C. und Hoor, P. und Marquardt, R. und Wagner, V. (2000) Aircraft measurements of tracer correlations in the Arctic subvortex region during the Polar Stratospheric Aerosol Experiment (POLSTAR). Journal of Geophysical Research, 105, 24,305-24,313. Institut für Physik der Atmosphäre Zeitschriftenbeitrag PeerReviewed 2000 ftdlr 2024-07-26T03:56:08Z Total reactive nitrogen (NOy ), ozone (O 3 ), the tracer nitrous oxide (N 2 O), and carbon monoxide (CO) were measured in situ as part of the Polar Stratosphere Aerosol Experiment (POLSTAR 1 and 2). In total, 14 missions were performed in January and February 1997 and 1998 in the Arctic subvortex region, by using the Deutsches Zentrum für Luft- und Raumfahrt research aircraft Falcon. During the two campaigns, no signatures of nitrification events in the lowermost stratosphere, due to sedimentation and evaporation of aerosol particles containing HNO 3 , were found. Compact correlations were observed between NO y and O 3 , between NOy and N 2 O, and between O3 and N2O. Mean NOy /O 3 ratios observed in the lowermost Arctic stratosphere in 1997 and 1998 were 0.0046 and 0.0030, respectively. During POLSTAR 1, NOy-N 2 O and O 3 -N 2 O slopes compare quite well with results of previous measurements in the lowermost stratosphere. However, indications for a nonstratospheric NOy source, possibly aircraft emissions, were found. During POLSTAR 2, inferred NOy-N 2 O and O 3 -N 2 O slopes were significantly lower than those previously observed in this region. This might indicate transport from lower latitudes to the Arctic subvortex region. Article in Journal/Newspaper Arctic German Aerospace Center: elib - DLR electronic library |
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Open Polar |
collection |
German Aerospace Center: elib - DLR electronic library |
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ftdlr |
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Institut für Physik der Atmosphäre |
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Institut für Physik der Atmosphäre Ziereis, H. Schlager, H. Fischer, H. Feigl, C. Hoor, P. Marquardt, R. Wagner, V. Aircraft measurements of tracer correlations in the Arctic subvortex region during the Polar Stratospheric Aerosol Experiment (POLSTAR) |
topic_facet |
Institut für Physik der Atmosphäre |
description |
Total reactive nitrogen (NOy ), ozone (O 3 ), the tracer nitrous oxide (N 2 O), and carbon monoxide (CO) were measured in situ as part of the Polar Stratosphere Aerosol Experiment (POLSTAR 1 and 2). In total, 14 missions were performed in January and February 1997 and 1998 in the Arctic subvortex region, by using the Deutsches Zentrum für Luft- und Raumfahrt research aircraft Falcon. During the two campaigns, no signatures of nitrification events in the lowermost stratosphere, due to sedimentation and evaporation of aerosol particles containing HNO 3 , were found. Compact correlations were observed between NO y and O 3 , between NOy and N 2 O, and between O3 and N2O. Mean NOy /O 3 ratios observed in the lowermost Arctic stratosphere in 1997 and 1998 were 0.0046 and 0.0030, respectively. During POLSTAR 1, NOy-N 2 O and O 3 -N 2 O slopes compare quite well with results of previous measurements in the lowermost stratosphere. However, indications for a nonstratospheric NOy source, possibly aircraft emissions, were found. During POLSTAR 2, inferred NOy-N 2 O and O 3 -N 2 O slopes were significantly lower than those previously observed in this region. This might indicate transport from lower latitudes to the Arctic subvortex region. |
format |
Article in Journal/Newspaper |
author |
Ziereis, H. Schlager, H. Fischer, H. Feigl, C. Hoor, P. Marquardt, R. Wagner, V. |
author_facet |
Ziereis, H. Schlager, H. Fischer, H. Feigl, C. Hoor, P. Marquardt, R. Wagner, V. |
author_sort |
Ziereis, H. |
title |
Aircraft measurements of tracer correlations in the Arctic subvortex region during the Polar Stratospheric Aerosol Experiment (POLSTAR) |
title_short |
Aircraft measurements of tracer correlations in the Arctic subvortex region during the Polar Stratospheric Aerosol Experiment (POLSTAR) |
title_full |
Aircraft measurements of tracer correlations in the Arctic subvortex region during the Polar Stratospheric Aerosol Experiment (POLSTAR) |
title_fullStr |
Aircraft measurements of tracer correlations in the Arctic subvortex region during the Polar Stratospheric Aerosol Experiment (POLSTAR) |
title_full_unstemmed |
Aircraft measurements of tracer correlations in the Arctic subvortex region during the Polar Stratospheric Aerosol Experiment (POLSTAR) |
title_sort |
aircraft measurements of tracer correlations in the arctic subvortex region during the polar stratospheric aerosol experiment (polstar) |
publishDate |
2000 |
url |
https://elib.dlr.de/9210/ |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Ziereis, H. und Schlager, H. und Fischer, H. und Feigl, C. und Hoor, P. und Marquardt, R. und Wagner, V. (2000) Aircraft measurements of tracer correlations in the Arctic subvortex region during the Polar Stratospheric Aerosol Experiment (POLSTAR). Journal of Geophysical Research, 105, 24,305-24,313. |
_version_ |
1810292457754066944 |