ausblenden:
Schlagwörter:
Geology;
Zusammenfassung:
Lower stratosphericin situ observationsa re usedt o quantify both the accumulated ozone loss and the ozone
chemical loss rates in the Arctic polar vortex during the 1999-
2000 winter. Multiple long-lived trace gas correlations are
used to identify parcels in the inner Arctic vortex whose
chemical loss rates are unaffected by extra-vortex intrusions.
Ozone-tracer correlations are then used to calculate ozone
chemical loss rates. During the late winter the ozone
chemical loss rate is found to be-46 q- 6 (1•) ppbv/day. By
mid-March 2000, the accumulated ozone chemical loss is 58
q- 4 % in the lower stratosphere near 450 K potential
temperature(- 19 km altitude).
