Dry deposition velocities (open loop)

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-ol

气体向陆地表面的干沉降是对流层中活性痕量气体的重要汇。厘清干沉降过程，对于理解空气质量及其对人体健康与植被的影响具有重要意义。SURFEX采用SEEDS项目近期开发的软件方案（交付物D3.4）计算干沉降过程。该干沉降软件方案可计算干沉降速率，该速率可作为输入参数用于空气质量模型中干沉降通量的计算。本次提供的干沉降速率涵盖臭氧、二氧化硫以及活性氮化合物，具体包括氮氧化物（NOₓ）、氨、硝酸、有机硝酸盐与过氧硝酸。所有干沉降数据均以小时时间分辨率输出。
https://www.seedsproject.eu/data/dv-ol