Profiling of MAX-DOAS BrO measurements from Antarctica and NO2 measurements from CINDI


Contact
Robyn.Schofield [ at ] awi.de

Abstract

We will present a newly developed algorithm for the retrieval of tropospheric trace gas profiles from MAX-DOAS measurements. A Monte Carlo radiative transfer model, NIMO (NIWA Monte Carlo model) is used to calculate the weighting functions and forward model DSCDs (Differential Slant Column Densities). NIMO uses the local estimation technique to substantially speed up the determination of DSCDs for any given set of measurement ge- ometries, enabling use of the model online rather than using pre-calculated lookup tables. The optimal estimation method is used to retrieve profiles for either single or multiple scan sequences or over prescribed time intervals. This inversion method is used to derive NO2 profiles from MAX-DOAS measurements made during the CINDI campaign at Cabauw, Netherlands, in June/July 2009. BrO profiles retrieved from sea-ice MAX-DOAS measure- ments, made during two Antarctic springtime campaigns in 2006 and 2007, are also presented.



Item Type
Conference (Poster)
Authors
Divisions
Programs
Publication Status
Published
Event Details
EGU General Assembly 2010, Vienna 2-7 May..
Eprint ID
22988
Cite as
Hay, T. , Kreher, K. , Johnston, P. V. , Bodeker, G. E. , Schofield, R. , Thomas, A. , McDonald, A. and Martinez-Aviles, M. (2010): Profiling of MAX-DOAS BrO measurements from Antarctica and NO2 measurements from CINDI , EGU General Assembly 2010, Vienna 2-7 May. .


Share
Add to AnyAdd to TwitterAdd to FacebookAdd to LinkedinAdd to PinterestAdd to Email

Research Platforms
N/A

Campaigns
N/A


Actions
Edit Item Edit Item