Fig. 6: Spatiotemporal evolution of the vortex and its thermodynamical properties. | Communications Earth & Environment

Fig. 6: Spatiotemporal evolution of the vortex and its thermodynamical properties.

From: The 2019/20 Australian wildfires generated a persistent smoke-charged vortex rising up to 35 km altitude

Fig. 6

a Composite horizontal sections of the vortex. The background shows the relative vorticity field on 24 January 2020 6UTC from the ECMWF operational analysis on the surface 46.5 hPa (21.3 km at the location of the vortex) corresponding to the level of highest vorticity in the vortex. The boxes show the vorticity field at other times as horizontal sections at the level of maximum vorticity centroid projected onto the background field. The yellow curve is the twice-daily sampled trajectory of the vortex centroid. The red dots show the location of the CALIOP bubble centroid for all the cases where it is clearly intersected by the orbit. The magenta crosses show the location of the center of the compact aerosol index anomaly as seen from TROPOMI (Supplementary notes 3). b Composite vertical section of the vortex. The background is here the longitude-altitude section of the vortex on 24 January 2020 6 UTC at the latitude 47°S. The boxes show vertical sections at the same time as (a) at the latitude of maximum vorticity. The black, red and white dots show, respectively, the CALIOP bubble top, centroid and bottom. c Composite of the vortex vorticity in the longitude–altitude plane at the level and at the latitude of the vortex centroid performed during the most active period of the vortex between 14 January and 22 February. d Same as (c) for the meridional wind deviation with respect to the mean in the displayed box. e Same as (c) but for the ozone mixing ratio deviation with respect to the zonal mean. f Same as (c) but for the temperature deviation with respect to the zonal mean.

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