Model for Estimating Anthropogenic Nutrient diScharges with high Temporal and Spatial resolution dataset (MEANS-ST1.0)

The MEANS-ST1.0 dataset consists of a "Data File" and a "Readme File". The "Data File" serve as the core file, while the "Readme File" provides explanations of abbreviations and units, along with a list of key parameters. Within the data files, we offer three different formats of anthropogenic pollutant discharge datasets. The first format is stored as GeoTIFF files, which can be used in conjunction with GIS software for overall characterization and spatial distribution analysis. The spatial resolution is 1 km, covering three representative years (1980, 2000, and 2020) and providing data on total anthropogenic nitrogen discharges, as well as discharges from five types of anthropogenic pollutant sources: urban residential, rural residential, industry, crop farming and livestock farming. The second format comprises ten NetCDF files, suitable for constructing two-dimensional or multi-dimensional models and conducting data visualization analysis. These files have a spatial resolution of 1 km and contain monthly data for different years (1980, 2000, and 2020) on total TN and TP discharges and five types of anthropogenic pollutant sources. The third format of the dataset is Excel files, supporting the construction of a national integrated model and providing yearly data on anthropogenic pollutant discharges for provincial administrative units, including both total and categorized discharges. The MEANS-ST1.0 dataset incorporates the most comprehensive spatiotemporal dynamic parameters, enabling a fine-grained analysis of the long-term dynamics for China's anthropogenic nutrient discharges from both spatial and temporal perspectives.

MEANS-ST1.0数据集包含“数据文件”与“说明文档”两类文件。其中数据文件为核心载体，说明文档用于解释缩写词与计量单位，并列出关键参数清单。数据文件中共提供三种不同格式的人为污染物排放数据集：第一种格式为GeoTIFF格式文件，可配合地理信息系统（GIS, Geographic Information System）软件开展整体表征与空间分布分析。该类数据空间分辨率为1千米，覆盖1980、2000、2020三个典型年份，包含人为氮排放总量，以及城镇生活、农村生活、工业、种植业、养殖业五类人为污染源的排放数据。第二种格式包含10个NetCDF（Network Common Data Form）文件，适用于构建二维或多维模型并开展数据可视化分析。该类数据空间分辨率同样为1千米，涵盖1980、2000、2020年各月的总氮（TN, Total Nitrogen）、总磷（TP, Total Phosphorus）排放数据，以及五类人为污染源的排放数据。第三种格式为Excel文件，可支撑国家级综合模型构建，提供省级行政区尺度的年度人为污染物排放数据，包含排放总量与分类排放数据。MEANS-ST1.0数据集集成了目前最为全面的时空动态参数，能够从空间与时间双维度对中国人为养分排放的长期动态开展精细化分析。

搜集汇总

背景与挑战

背景概述

MEANS-ST1.0数据集提供了三种格式的污染物排放数据（GeoTIFF、NetCDF和Excel），覆盖1980、2000和2020三个代表性年份，空间分辨率为1公里。该数据集包含总人为氮排放量及五类污染源（城市居民、农村居民、工业、作物种植和畜牧业）的排放数据，适用于GIS分析、模型构建和可视化研究。