Monthly mean dataset of global phytoplankton taxonomic group concentrations Part.1 (2002.7-2012.12)

This dataset is a satellite product of global monthly mean phytoplankton taxonomic group (PTG) chlorophyll-a concentrations, including chlorophytes (Chlor), diatoms (Diat), haptophytes (Hapt), cryptophytes (Crypt), and cyanobacteria (Cyan). The time coverage of the dataset Part.1 is from July 2002 to December 2012. The data file includes PTG's chlorophyll-a concentration (unit: mg m-3), longitude, and latitude information, with a spatial resolution of 36 km. The values of non-water and invalid pixels are set to NaN. The data format is NetCDF (network common data form, nc). Naming rules: "data source identification_ month and year_PTG abbreviation_data production time.nc". Examples are as follows: MO_200207_chlor_data_20220520.nc where 'MO' refers to MODIS-Aqua data. '200207' represents July 2002. 'Chlor_data' means chlorophytes' chlorophyll-a concentration (unit: mg m-3). The data production time is expressed as "month, month, day day, year". '.nc' is the suffix of the NetCDF data file.

本数据集为全球逐月平均浮游植物类群（phytoplankton taxonomic group, PTG）叶绿素a浓度卫星产品，涵盖绿藻（chlorophytes, Chlor）、硅藻（diatoms, Diat）、定鞭金藻（haptophytes, Hapt）、隐藻（cryptophytes, Crypt）以及蓝细菌（cyanobacteria, Cyan）。数据集第一部分的时间覆盖区间为2002年7月至2012年12月。数据文件包含浮游植物类群的叶绿素a浓度（单位：mg·m⁻³）、经度与纬度信息，空间分辨率为36 km。非水体及无效像元的取值被设置为NaN。数据格式为NetCDF（网络通用数据格式，简称nc）。文件命名遵循"数据源标识_年月_PTG缩写_数据生产时间.nc"的规则，示例如下：MO_200207_chlor_data_20220520.nc，其中"MO"代表MODIS-Aqua卫星数据，"200207"表示2002年7月，"chlor_data"指代绿藻的叶绿素a浓度（单位：mg·m⁻³），数据生产时间采用"年、月、日"的格式表达，".nc"为NetCDF数据文件的后缀。