GCOM-C/SGLI L3 Binned Water cloud optical thickness (1-Day,1/12 deg)

GCOM-C/SGLI L3 Binned Water cloud optical thickness (1-Day,1/12 deg) is obtained from the SGLI sensor onboard GCOM-C and produced by the Japan Aerospace Exploration Agency (JAXA). GCOM-C is Sun-synchronous sub-recurrent Orbit satellite launched on December 23, 2017, which mounts SGLI and conducts long-term global observations of geophysical variables related to the global climate system across 28 items including aerosol and vegetation over 4 areas of atmosphere, land, ocean, and cryosphere. The data will be used to contribute to higher accuracy of global warming prediction. The SGLI has swath of 1150 km in the visible band and 1400 km in the infrared band. Level 3 products are defined to be products derived from Level 1B and Level 2 products by statistically processing the Level 1B and Level 2 products in time and space domains.This dataset is daily spatial binning statistics product by reducing the spatial resolution to 1/12 deg with EQA projection.This dataset includes water cloud optical thickness. The physical quantity unit is dimensionless. The stored statistics values are average (AVE), root-mean-square (RMS), maximum value (MAX), minimum value (MIN), number of input data (Ninput), number of used data (Nused), date of observation (Date), and quality flag (QA_flag). The provided format is HDF5. The Spatial resolution is 1/12 degree. The statistical period is 1 day, also 8 days and 1 month statistics are available. The projection method is EQA. The generation unit is Global. The current version of the product is Version 3. The Version 2 is also available.GCOM-C/SGLI L3 分箱式水云光学厚度（1日尺度、1/12度空间分辨率）数据由搭载于全球变化观测任务-C卫星（Global Change Observation Mission - C，简称GCOM-C）的第二代全球成像仪（Second Global Imager，简称SGLI）传感器获取，由日本宇宙航空研究开发机构（Japan Aerospace Exploration Agency，简称JAXA）生产。GCOM-C是2017年12月23日发射的太阳同步回归轨道卫星，搭载SGLI传感器，在大气、陆地、海洋、冰冻圈四大研究领域内，针对气溶胶、植被等28项与全球气候系统相关的地球物理变量开展长期全球观测。本数据可为提升全球变暖预测精度提供支撑。SGLI可见光波段幅宽达1150千米，红外波段幅宽达1400千米。L3级产品指通过对L1B级与L2级产品在时间与空间域内开展统计处理后衍生得到的产品。本数据集为日尺度空间分箱统计产品，采用等经纬度投影（Equirectangular Projection，简称EQA），将空间分辨率降为1/12度。本数据集包含水云光学厚度参数，其物理量单位为无量纲。存储的统计指标包括平均值（Average，AVE）、均方根值（Root Mean Square，RMS）、最大值（Maximum，MAX）、最小值（Minimum，MIN）、输入数据总数（Number of input data，Ninput）、有效使用数据总数（Number of used data，Nused）、观测日期（Date）以及质量标记（Quality Flag，QA_flag）。数据集提供格式为HDF5，空间分辨率为1/12度。统计周期支持1日尺度，同时亦提供8日尺度与月尺度的统计产品。投影方式为EQA，数据生成范围为全球。当前产品版本为V3，同时也可获取V2版本。