ANALYSIS OF SUBMILLIMETRE-WAVE MEASUREMENTS OF THE UTLS REGION DURING THE ESA SOUNDER CAMPAIGN 2011

摘要

We present results from an updated retrieval algorithmrnfor the sub-millimetre wave limb sounderrnMARSCHALS. The measurements we analysed wererntaken during the air-borne ESA Sounder Campaignrn(ESSenCe, Dec 2011, Kiruna). ESSenCe saw the firstrndeployment of the high resolution, infrared limb imagerrnGLORIA-AB. Deployed adjacent to and simultaneousrnwith MARSCHALS, GLORIA-AB measured a filamentrnstructure in the atmospheric O3 and HNO3rnconcentration of ~500m thickness (Fig. 1). The existingrnRAL retrieval code uses a vertical retrieval grid of 2 kmrnand was therefore not able to resolve this atmosphericrnfeature. On the basis of the ESSenCe data we havernincreased the resolution of our retrieval grid to see if werncan reproduce (and validate) the feature observed byrnGLORIA.