Dry deposition velocities (assimilated data)

Dry deposition of gases to the land surface is an important sink for reactive trace gases in the troposphere. Understanding dry deposition is of importance for understanding air quality and its impacts on human health and vegetation. SURFEX calculates dry deposition using a software scheme that was recently developed in the SEEDS project (deliverable D3.4). The dry deposition software scheme calculates dry deposition velocities, which can be used as an input to calculate dry deposition fluxes in an air quality model. The dry deposition velocities are provided for ozone, sulphur dioxide, and reactive nitrogen compounds (NOx, ammonia, nitric acid, organic nitrates, and per-nitric acid). All of the dry deposition data are output on an hourly time resolution.

https://www.seedsproject.eu/data/dv-assim

气体向陆地表面的干沉降（dry deposition）是对流层内反应性痕量气体的重要汇。明晰干沉降过程，对于认知空气质量及其对人体健康与植被的影响至关重要。SURFEX采用SEEDS项目（deliverable D3.4）新近开发的软件方案开展干沉降计算。该干沉降软件方案可计算干沉降速率（dry deposition velocities），该速率可作为输入参数用于空气质量模型的干沉降通量计算。本次提供的干沉降速率涵盖臭氧（ozone）、二氧化硫（sulphur dioxide）以及反应性氮化合物（reactive nitrogen compounds，包括NOx、氨、硝酸、有机硝酸盐与过硝酸）。所有干沉降数据均按小时时间分辨率输出。
https://www.seedsproject.eu/data/dv-assim