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

The OLCI+SLSTR/Sentinel-3B 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 S3B_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）及海洋与陆地表面温度辐射计（SLSTR）/Sentinel-3B L2地表反射率和气溶胶参数产品，系通过整合搭载于Sentinel-3卫星的OLCI与SLSTR所采集的数据生成。OLCI为一台推帚式成像光谱仪，能够以约300米的地面空间分辨率测量地球表面在21个光谱波段内反射的太阳辐射，覆盖所有地表类型；而SLSTR则为一台双扫描温度辐射计。SLSTR产品的主要目标是提供全球及区域性的海洋与陆地表面温度（SST、LST），其精度达到极高的水平（优于0.3K），以满足气候和气象应用的需求。

欲了解更多关于仪器和任务的信息，请访问“Sentinel在线”网站：https://sentinel.esa.int/web/sentinel/home。

S3B_SY_2_SYN为二级产品，包含所有综合通道的地表反射率和陆地气溶胶参数。该产品包含29个测量数据文件和9个注释数据文件。所有测量数据集均以OLCI图像网格提供，与OLCI L1b产品中的网格相似。

欲获取更多关于该产品的信息，请阅读Sentinel-3协同用户指南：https://sentinel.esa.int/web/sentinel/user-guides/sentinel-3-synergy