MLS/Aura Level 3 Daily Binned Nitrous Oxide (N2O) Mixing Ratio on Assorted Grids V004 (ML3DBN2O) at GES DISC

ML3DBN2O is the EOS Aura Microwave Limb Sounder (MLS) daily binned on various vertical grids product for nitrous oxide (N2O) derived from radiances measured primarily by the 640 GHz radiometer (Band 12) until August 6, 2013, after this date using the 190 GHz radiometer (Band 3). The data version is 4.2. Spatial coverage is near-global (-82 to +82 degrees latitude) at a spatial resolution of 4 degrees latitude by 5 degrees longitude. The recommended useful vertical range is from 68.1 to 0.464 hPa, and the vertical resolution is between 4 and 6 km. Users of the ML3DBN2O data product should read chapter 4 and section 3.17 of the EOS MLS Level 2 Version 4 Quality Document for more information.

The data files are archived in the netCDF4 format, which is also compatible with HDF5 readers and tools. Each file contains six group objects: lat-lon map vs pressure, lat vs pressure zonal mean, lat-lon map vs "potential temperature", lat vs "potential temperature" zonal mean, "equivalent latitude" vs "potential temperature" zonal mean, and vortex average vs "potential temperature". Each group has a set of data (average, min, max, std dev, rms) and geolocation fields, grid attributes, and metadata.

ML3DBN2O是EOS Aura微波临边探测仪（MLS）针对一氧化二氮（N₂O）生成的、按多种垂直网格划分的逐日分箱数据集产品。2013年8月6日前，其数据主要源自640 GHz辐射计（12波段）的观测辐射亮温；2013年8月6日之后，则改用190 GHz辐射计（3波段）的观测数据。该数据集版本为4.2，空间覆盖范围接近全球（纬度范围为-82°至+82°），空间分辨率为4°纬度×5°经度。推荐的有效垂直范围为68.1 hPa至0.464 hPa，垂直分辨率介于4 km至6 km之间。如需获取更多信息，ML3DBN2O数据集的使用者请参阅《EOS MLS Level 2 Version 4质量文档》的第4章及第3.17节。
数据集文件以netCDF4格式归档，同时兼容HDF5读取器与相关工具。每个数据文件包含6个组对象：气压-经纬度分布图、气压-纬度纬向平均值、位温-经纬度分布图、位温-纬度纬向平均值、位温-等效纬度纬向平均值，以及位温-涡旋平均值。每个组均包含一组数据（平均值、最小值、最大值、标准差、均方根值）以及地理定位字段、网格属性与元数据。