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首页> 外文会议>Sensors, systems, and next-generation satellites XXI >Image quality validation of Sentinel 2 Level-1 products: performance status at the beginning of the constellation routine phase
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Image quality validation of Sentinel 2 Level-1 products: performance status at the beginning of the constellation routine phase

机译：Sentinel 2 Level-1产品的图像质量验证：星座常规阶段开始时的性能状态

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Sentinel-2 is an Earth Observation mission developed by the European Space Agency (ESA) in the frame of the Copernicus program of the European Commission. The mission is based on a constellation of 2-satellites: Sentinel-2A launched in June 2015 and Sentinel-2B launched in March 2017. It offers an unprecedented combination of systematic global coverage of land and coastal areas, a high revisit of five days at the equator and 2 days at mid-latitudes under the same viewing conditions, high spatial resolution, and a wide field of view for multispectral observations from 13 bands in the visible, near infrared and short wave infrared range of the electromagnetic spectrum. The mission performances are routinely and closely monitored by the S2 Mission Performance Centre (MPC), including a consortium of Expert Support Laboratories (ESL). This publication focuses on the Sentinel-2 Level-1 product quality validation activities performed by the MPC. It presents an up-to-date status of the Level-1 mission performances at the beginning of the constellation routine phase. Level-1 performance validations routinely performed cover Level-1 Radiometric Validation (Equalisation Validation, Absolute Radiometry Vicarious Validation, Absolute Radiometry Cross-Mission Validation, Multi-temporal Relative Radiometry Vicarious Validation and SNR Validation), and Level-1 Geometric Validation (Geolocation Uncertainty Validation, Multi-spectral Registration Uncertainty Validation and Multi-temporal Registration Uncertainty Validation). Overall, the Sentinel-2 mission is proving very successful in terms of product quality thereby fulfilling the promises of the Copernicus program.
机译：Sentinel-2是由欧洲航天局（ESA）在欧盟委员会哥白尼计划的框架内开发的对地观测任务。该任务基于两颗卫星组成的星座：2015年6月发射的Sentinel-2A和2017年3月发射的Sentinel-2B。它空前地结合了对陆地和沿海地区的系统化全球覆盖，在5天的高访问时间在相同的观察条件下，高空间分辨率和宽视野的赤道和中纬度2天，可从电磁波谱的可见，近红外和短波红外范围内的13个波段进行多光谱观察。 S2任务执行中心（MPC）包括一个专家支持实验室（ESL）组成的联盟定期对任务的执行情况进行严格监控。该出版物重点介绍了MPC执行的Sentinel-2 Level-1产品质量验证活动。它在星座例行程序阶段的开始时提供了Level-1任务性能的最新状态。常规执行的1级性能验证包括1级放射线验证（均等验证，绝对放射线替代验证，绝对放射线交叉验证，多时相相对放射线替代验证和SNR验证）和1级几何验证（地理位置不确定性）验证，多光谱注册不确定性验证和多时间注册不确定性验证）。总体而言，Sentinel-2任务在产品质量方面非常成功，从而实现了哥白尼计划的承诺。

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