A three-dimensional simulation of the ozone annual cycle using winds from a data assimilation system

摘要: The wind fields from the NASA Goddard stratospheric data assimilation procedure are used in a three-dimensional chemistry and transport model to produce an ozone simulation for year September 11, 1991 10, 1992. Photochemical production loss taken two-dimensional model. calculated is compared with observations total mapping spectrometer (TOMS) onboard Nimbus 7 microwave limb sounder on upper atmospheric research satellite. Although about 50 Dobson units (DU; =2.69 × 10−16 molecules cm−2) lower than TOMS tropics up 70 DU higher middle high latitudes, simulated reproduce many of features observations. Even at end this integration, synoptic modeled very similar observations, indicating that maintains realistic values horizontal vertical gradients, least stratosphere. From good comparison between timescales ranging days months, we infer driven by assimilated closely approximates actual transport. Therefore winds useful applications which may be sensitive