Sentinel-5P TROPOMI – Ozone (O3), Level 3 – Global

The TROPOMI instrument onboard the Copernicus SENTINEL-5 Precursor satellite is a nadir-viewing, imaging spectrometer that provides global measurements of atmospheric properties and constituents on a daily basis. It is contributing to monitoring air quality and climate, providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the top of atmosphere solar radiation reflected by and radiated from the earth and its atmosphere. The four spectrometers of TROPOMI cover the ultraviolet (UV), visible (VIS), Near Infra-Red (NIR) and Short Wavelength Infra-Red (SWIR) domains of the electromagnetic spectrum. The operational trace gas products generated at DLR on behave ESA are: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4), together with clouds and aerosol properties. Daily observations are binned onto a regular latitude-longitude grid. This product displays the ozone (O3) concentration globally (in Dobson Unit). The ozone layer in the stratosphere protects the biosphere from harmful solar ultraviolet radiation. Ozone in troposphere can pose risks to the health of humans, animals, and vegetation. This product is generated in the scope of the DLR project INPULS. INPULS develops (a) innovative retrieval algorithms and processors for the generation of value-added products from the atmospheric Copernicus missions Sentinel-5 Precursor, Sentinel-4, and Sentinel-5, (b) cloud-based (re)processing systems, (c) improved data discovery and access technologies as well as server-side analytics for the users, and (d) data visualization services.搭载于哥白尼哨兵-5号前驱卫星（Copernicus SENTINEL-5 Precursor）的TROPOMI仪器是一款天底观测成像光谱仪，可每日开展全球大气属性与成分探测。该仪器助力空气质量与气候监测，为相关业务部门及决策者提供关键数据支撑。其采用被动遥感技术，通过测量地球及其大气反射与辐射的大气层顶太阳辐射实现探测。TROPOMI搭载的四台光谱仪覆盖电磁频谱的紫外（Ultraviolet, UV）、可见光（Visible, VIS）、近红外（Near Infra-Red, NIR）以及短波红外（Short Wavelength Infra-Red, SWIR）波段。由德国航空航天中心（DLR）代表欧洲空间局（ESA）生成的业务痕量气体产品包括：臭氧（Ozone, O3）、二氧化氮（Nitrogen Dioxide, NO2）、二氧化硫（Sulfur Dioxide, SO2）、甲醛（Formaldehyde, HCHO）、一氧化碳（Carbon Monoxide, CO）与甲烷（Methane, CH4），以及云与气溶胶属性产品。每日观测数据会被网格化至规则经纬网格。 本产品展示全球臭氧（Ozone, O3）浓度分布，单位为多布森单位（Dobson Unit）。平流层中的臭氧层可保护生物圈免受有害太阳紫外辐射伤害，而对流层臭氧则会对人类、动物及植被的健康构成威胁。 本产品由德国航空航天中心（DLR）的INPULS项目研发生成。INPULS项目的研发内容包括：(a) 面向哥白尼大气任务（Sentinel-5 Precursor、Sentinel-4及Sentinel-5）的数据，研发创新性反演算法与处理处理器以生成增值产品；(b) 构建基于云的（再）处理系统；(c) 优化面向用户的数据发现与访问技术及服务端分析工具；(d) 提供数据可视化服务。