Replication Data for: Coordinated satellite, aircraft, and ground-based observations of a large transient methane release
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This dataset contains methane total column concentrations retrieved during a pipeline blowdown maintenance event, from the ABI instruments on NOAA GOES geostationary satellites. Actual location of the experiment cannot be shared due to NOAA's restrictions. File name convention:LonXXX_LatYYY_[Satellite]_[Mode]_[yyyyjjjhhmmss].nc Satellite: the GOES satellites include GOES-16/18/19Mode: FullDisk mode has 10 min scan frequency, CONUS mode scans every 5 min, Meso mode scans every 30 sec, and GOES-19 has a special 7-sec test mode. yyyy: 4 digits for yearjjj: 3 digits for day of the year (DOY)hhmmss: 6 digits for hour, minute, and second Variables in each netCDF file:CH4_enhance : CH4 enhancements from reference in [mol/m2]CH4_plume_mask : Binary plume mask (1=plume, 0=non-plume)CH4_reference : CH4 reference used in calculating CH4_enhance [mol/m2]CH4_target : CH4 retrieval for the target scene [mol/m2]Cloud_mask : Binary cloud mask (1=cloud, 0=clear), not available for G-19dR_reference : Band ratio between 1.6/2.3 um bands for the referencedR_target : Band ratio between 1.6/2.3 um bands for the target scenelat : latitude grid, central location obscuredlon : longitude grid, central location obscured RGB : True color image
本数据集收录了由美国国家海洋和大气管理局(National Oceanic and Atmospheric Administration, NOAA)的地球静止轨道环境卫星(Geostationary Operational Environmental Satellite, GOES)上搭载的先进基线成像仪(Advanced Baseline Imager, ABI)在管道吹扫维护事件期间反演得到的甲烷总柱浓度数据。受NOAA相关限制,本实验的实际位置无法对外公开。 文件名命名规范: 文件名遵循如下格式:LonXXX_LatYYY_[Satellite]_[Mode]_[yyyyjjjhhmmss].nc 各字段说明如下: 1. 卫星(Satellite):所用GOES系列卫星包括GOES-16/18/19; 2. 扫描模式(Mode):全圆盘模式(FullDisk mode)扫描周期为10分钟,美国本土区域模式(CONUS mode)扫描周期为5分钟,中尺度模式(Meso mode)扫描周期为30秒,GOES-19另有专属的7秒测试模式; 3. 时间字段:yyyy为4位年份,jjj为3位年内日序数(Day of Year, DOY),hhmmss为6位时、分、秒组合数值。 单个netCDF(网络通用数据格式)文件所含变量: 每个netCDF文件包含以下变量: - CH4_enhance:相对于参考基准的甲烷增强浓度,单位为mol/m²; - CH4_plume_mask:二元羽流掩膜(1代表羽流区域,0代表非羽流区域); - CH4_reference:计算CH4_enhance时所采用的甲烷参考浓度,单位为mol/m²; - CH4_target:目标场景的甲烷反演浓度,单位为mol/m²; - Cloud_mask:二元云掩膜(1代表云覆盖区域,0代表晴空区域),GOES-19数据暂未提供该变量; - dR_reference:参考场景1.6μm与2.3μm波段的波段比值; - dR_target:目标场景1.6μm与2.3μm波段的波段比值; - lat:纬度网格,核心位置已做隐去处理; - lon:经度网格,核心位置已做隐去处理; - RGB:真彩色影像。



