遇见数据集

Daily Meteorological Records for Operational SMN Stations in Mexico (1991–2020) with NASA POWER Co-located Variables

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Zenodo2025-11-18 更新2026-05-26 收录
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This dataset contains daily meteorological records for operational weather stations of the Servicio Meteorológico Nacional (SMN) of Mexico, covering the period 1991–2020.All records were obtained using the SMNdataR package, which provides direct access, retrieval, and harmonization of long-format station data from the national network. Each SMN observation was complemented with co-located NASA POWER variables extracted at the exact geographic coordinates of each station. This integration enables multi-source modeling, quality assessment, and development of hybrid meteorological datasets for machine learning, imputation, downscaling, and agroclimatic research. Contents The dataset includes, for each station and each day in the period 1991–2020: Metadata: station — SMN station identifier latitude, longitude, altitude date (YYYY-MM-DD) SMN observed daily variables: prec (precipitation, mm) tmax (maximum temperature, °C) tmin (minimum temperature, °C) evap (evaporation, mm) NASA POWER co-located variables: T2M_MIN, T2M_MAX (min/max temperature at 2 m) PRECTOTCOR (corrected precipitation) EVLAND (land evaporation) Data Characteristics Format: long format, one row per station-day Missing values: represented as "NA" Spatial coverage: all operational SMN stations with data in the period 1991–2020 Temporal resolution: daily Coordinate reference: WGS84 Data sources: SMN official daily records NASA POWER v2.0 global meteorology Intended Use This dataset is designed for: Missing-data imputation research Machine learning modeling of climate variables Hydrological and agroclimatological studies Time-series reconstruction Benchmarking of new imputation algorithms

本数据集包含墨西哥国家气象局(Servicio Meteorológico Nacional, SMN)业务气象站的逐日气象观测记录,时间跨度为1991年至2020年。所有观测数据均通过SMNdataR包获取,该工具可直接访问、提取并标准化处理国家气象站网的长格式站点数据。 每一条墨西哥国家气象局(SMN)的观测记录,均补充了在各测站精确地理坐标处提取的NASA POWER协同变量。这种多源整合方案可支撑机器学习、缺失值插补、降尺度以及农业气候研究领域的多源建模、质量评估与混合气象数据集构建工作。 数据集内容 在1991-2020年的观测周期内,本数据集涵盖每个测站每日的如下信息: 元数据: - 测站标识:SMN测站编号 - 纬度、经度、海拔高度 - 观测日期(格式为YYYY-MM-DD) SMN实测逐日气象变量: - prec(降水量,单位:毫米) - tmax(最高气温,单位:℃) - tmin(最低气温,单位:℃) - evap(蒸发量,单位:毫米) NASA POWER协同观测变量: - T2M_MIN、T2M_MAX(2米高度处的最低、最高气温) - PRECTOTCOR(校正后降水量) - EVLAND(陆地蒸发量) 数据特征 - 格式:长格式,每个测站单日为一行 - 缺失值:以"NA"表示 - 空间覆盖范围:1991-2020年期间有有效观测数据的全部SMN业务气象站 - 时间分辨率:逐日 - 坐标参考系:WGS84 - 数据来源: 1. 墨西哥国家气象局(SMN)官方逐日观测记录 2. NASA POWER v2.0全球气象数据集 适用场景 本数据集适用于以下研究方向: - 缺失数据插补相关研究 - 气候变量的机器学习建模 - 水文与农业气候学研究 - 时间序列重建 - 新型插补算法的性能基准测试

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2025-11-18
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