Methanol from TES global observations: retrieval algorithm and seasonal and spatial variability.

ABSTRACT: We present a detailed description of the TES methanol (CH₃OH) retrieval algorithm, along with initial global results showing the seasonal and spatial distribution of methanol in the lower troposphere. The full development of the TES methanol retrieval is described, including microwindow selection, error analysis, and the utilization of a priori and initial guess information provided by the GEOS-Chem chemical transport model. Retrieval simulations and a sensitivity analysis using the developed retrieval strategy show that TES: (i) generally provides less than 1.0 piece of information, (ii) is sensitive in the lower troposphere with peak sensitivity typically occurring between ~900-700 hPa (~1-3 km) at a vertical resolution of ~5 km, (iii) has a limit of detectability between 0.5

SUBMITTER: Cady-Pereira KE 

PROVIDER: S-EPMC7939070 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature