OLCI+SLSTR/Sentinel-3A L2 Surface Reflectance and Aerosol parameters over Land

The OLCI+SLSTR/Sentinel-3A L2 Surface Reflectance and Aerosol parameters over Land product with shortname S3A_SY_2_SYN, is generated by combining data acquired by the Ocean and Land Colour Instrument (OLCI) and the Sea and Land Surface Temperature Radiometer (SLSTR), on-board SENTINEL-3. The OLCI is a push-broom imaging spectrometer that measures solar radiation reflected by the Earth at a ground spatial resolution of around 300m, over all surfaces, in 21 spectral bands whereas the SLSTR is a dual scan temperature radiometer. The principal objective of SLSTR products is to provide global and regional Sea and Land Surface Temperature (SST, LST) to a very high level of accuracy (better than 0.3 K) for both climatological and meteorological applications.

For more information about the instrument and the mission, visit "Sentinel Online" at https://sentinel.esa.int/web/sentinel/home.

The S3A_SY_2_SYN is a Level 2 product which consist of surface reflectances for all SYN channels and aerosol parameters over Land. There are 29 Measurement Data Files and 9 Annotation Data Files included in this product. All measurement datasets are provided on the OLCI image grid, similar to the one included in the OLCI L1b product.

For more information about the product, read the SENTINEL-3 Synergy User Guide at https://sentinel.esa.int/web/sentinel/user-guides/sentinel-3-synergy

S3A_SY_2_SYN，即海洋与陆地色彩仪器（OLCI）及海陆表面温度辐射计（SLSTR）/Sentinel-3A L2表面反射率与气溶胶参数陆地产品，通过整合搭载于Sentinel-3卫星上的OLCI与SLSTR获取的数据生成。OLCI是一种推帚式成像光谱仪，其在约300米的地面空间分辨率下，对所有地表进行21个光谱带的太阳辐射反射测量；而SLSTR则是一款双扫描温度辐射计。SLSTR产品的首要目标是提供全球及区域性的海陆表面温度（SST，LST）数据，其精确度极高（优于0.3 K），适用于气候及气象应用。有关仪器及任务更详细的信息，请访问“Sentinel在线”网站：https://sentinel.esa.int/web/sentinel/home。S3A_SY_2_SYN属于二级产品，包括所有综合通道的表面反射率及陆地气溶胶参数。该产品包含29个测量数据文件和9个标注数据文件。所有测量数据集均基于OLCI图像网格提供，与OLCI L1b产品中的网格类似。有关该产品的更多信息，请参阅Sentinel-3协同用户指南：https://sentinel.esa.int/web/sentinel/user-guides/sentinel-3-synergy。