首页 | 本学科首页   官方微博 | 高级检索  
     检索      

基于反距离加权插值法评价海域水质类别空间分布
引用本文:李翔宇,李曌,包艳英,李利,李玉璞.基于反距离加权插值法评价海域水质类别空间分布[J].中国环境监测,2019,35(6):70-77.
作者姓名:李翔宇  李曌  包艳英  李利  李玉璞
作者单位:大连市环境监测中心,辽宁 大连116023,中国环境监测总站,国家环境保护环境监测质量控制重点实验室,北京100012,大连市环境监测中心,辽宁 大连116023,海军大连舰艇学院,信息系统系,辽宁 大连 116018,大连市环境监测中心,辽宁 大连116023
摘    要:空间插值技术可以对污染物分布状况进行面状连续表征,是对点位法评价的有效补充。笔者根据现行海水水质评价方法,类比给出近岸海域水质类别空间分布评价的流程:单指标空间插值-单指标水质分类-多指标水质类别判定。研究了反距离加权插值参数的选取方法,并以点位密度不同的全国近岸海域(开放型)和渤海海域(近封闭型)为例进行了插值实验。 结果表明:对目前的点位分布情况而言,全国近岸海域参数设为p=3,N=4, C=200m较为适宜;渤海海域参数为p=2,N=5,C=200m较为适宜。反距离加权插值法在开放海域的拟合效果要优于近封闭海域。

关 键 词:反距离加权插值  海水水质  类别评价  参数设置  空间分布
收稿时间:2018/11/22 0:00:00
修稿时间:2019/2/12 0:00:00

Assessment of Seawater Quality Spatial Distribution Based on Inverse Distance Weighted Interpolation
LI Xiangyu,LI Zhao,BAO Yanying,LI Li and LI Yupu.Assessment of Seawater Quality Spatial Distribution Based on Inverse Distance Weighted Interpolation[J].Environmental Monitoring in China,2019,35(6):70-77.
Authors:LI Xiangyu  LI Zhao  BAO Yanying  LI Li and LI Yupu
Institution:Dalian Environmental Monitoring Centre,Dalian 116023,China,State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre,Beijing 100012,China,Dalian Environmental Monitoring Centre,Dalian 116023,China,Department of Information system,Dalian Naval Academy,Dalian 116018,China and Dalian Environmental Monitoring Centre,Dalian 116023,China
Abstract:Spatial interpolation technology can perform continuous surface characterization of pollutant distribution,which is an effective supplement to point assessment. According to the single-factor index, the paper provides a process of spatial distribution assessment of seawater quality classification:Single-factor interpolation, single-factor classification, class determination with multiple elements. It is focused on how to set the parameters of inverse distance weighted (IDW) interpolation and takes the open and near-closed sea area as example. Based on the current point distribution, it is suitable for China coastal sea that the parameters are set to p=3,N=4,C=200m. And it is suitable for the Bohai Sea that the parameters are set to p=2,N=5,C=200m. IDW interpolation result is better in the open sea area than the near-closed sea area.
Keywords:IDW interpolation  seawater quality  classification assessment  parameter settings  spatial distribution
点击此处可从《中国环境监测》浏览原始摘要信息
点击此处可从《中国环境监测》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号