CO2 Flux Estimates from a LETKF Data Assimilation System and Investigation of Observational Error Specification

Zhaohui Chen1, Parvadha Suntharalingam2, Andrew J. Watson3, Ute Schuster3, Jiang Zhu4 and Ning Zeng5, (1)University of East Anglia, Norwich, NR4, United Kingdom, (2)University of East Anglia, Norwich, United Kingdom, (3)University of Exeter, Exeter, United Kingdom, (4)Institute of Atmospheric Physics, International Center for Climate and Environment Sciences, Beijing, China, (5)University of Maryland, Department of Atmospheric and Oceanic Science, College Park, China