HIRDLS: HIgh Resolution Dynamics Limb Sounder

O3 Lamina observations with HIRDLS V004 Ozone [individual profiles]


Figure 1.

Figure 1 is a double layered ozone filament in the NH spring UTLS, extending down to 300 hPa. The comparison between an ozonesonde and the closest eight coincident HIRDLS profiles (approximately 300 km, 3 hours), indicates that the vertical features are well captured by HIRDLS (Figure 2). The profiles are at latitude 50° North.

Figure 2.

Figure 3.

Figure 3.a. Cross-section of ozone as a function of latitude and potential temperature along a HIRDLS scan track at 122°W (Eastern Pacific). Blue indicates mixing ratios <= 0.3 ppmv, green is near 0.8 ppmv, and red approaches 1.8 ppmv. Broken white lines indicate contours of potential vorticity (PV) at 6 and 10 PVU, the red line is the tropopause location, both from the Goddard Modeling and Assimilation Office (GMAO) Earth Observing System (GEOS5.1) data, which is also the source of the dashed lines indicating contours of zonal wind.

Figure 3.b. Plot of GEOS 5.1 PV on the 380K surface from 90-180°W, and 10-70°N at 12Z on 1 April 2006. Contours highlighted in color are 2 PVU (blue), 6 PVU (red) 8 PVU (yellow) and 10PVU (black). Green dash-dot lines show the HIRDLS scan tracks this day. The tracks through 122°W can be seen.