{"id":"d856ad31-9367-4efa-bcd7-b9f06ec59ee2","title":"中国西南地区基于宇宙射线观测的土壤水分反演数据集（2018-2020）","title_en":"COSMOS-based Soil Moisture Observations in Southwest China (2018-2020)","serial":"","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。","instructions":"1. 文件命名：土壤水分和降水数据以excel格式存储。文件的名称为“QMG-Hydro_COSMOS_SM.xlsx”。文件内部分列展示数据记录时间（UTC+8）、原始快中子和慢中子浓度、以及反演得到的区域土壤土壤水分。缺省值记为-99。数据共有1个文件。\n2. 数据读取方式：该数据集格式为Excel格式文件，常见的EXCEL、MATLAB等数据处理软件都可以读取。","description":"宇宙射线中子法是一种百米尺度的土壤水分无损测量方法。本数据是以重庆市青木关槽谷区宇宙射线土壤水分观测系统（COSMOS）同步测得的中子序列为输入，结合周边多个站点的多层土壤水分观测数据，发展了针对该中子观测的土壤水分反演算法。反演算法引入S-G滤波以对COSMOS快中子数进行平滑，同时优化了算法率定和验证阶段不同的数据筛选方案。此外，反演所需气象数据（主要是气压）由布设在COSMOS站点周边的自动气象站提供，用于对原始中子数进行校正。算法生成的宇宙射线土壤水分反演序列时间分辨率为1h。","doi":"","projection":"","language":"zh","share_type":"offline","east":106.319,"west":106.319,"south":29.762,"north":29.762,"scale":null,"crs":null,"filesize":10.0,"share_policy":"c","ts_created":"2022-09-29T10:48:24.063512+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-10-17T19:32:07.283455+08:00","time_description":"2018-2020","datas_group":0,"time_description_en":"","data_format":null,"project":[10],"specials":["1832ecb3-70d0-4b5e-bdb5-2e9ff4ad1efe"],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":"Hourly","spatial_resolution":"--","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"d856ad31-9367-4efa-bcd7-b9f06ec59ee2","three_pole":null,"third_pole":null},"username":"张可","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":337}