摘要
为了研究成都市水质富营养化情况,选取了龙泉湖作为研究对象,通过对龙泉湖实地采集水样以及高分一号实时遥感影像数据进行处理,准确地评价出了龙泉湖水体所处的富营养级别。通过对龙泉湖实地数据进行水样参数浓度测量以及实地光谱曲线处理,获得相关的水质反演所需的敏感波段或者波段组合,得出了5个水质参数的反演公式,既而对校正预处理过的高分一号遥感数据进行富营养等级评价。在对各个评价的指标参数进行分析后,选择适合龙泉湖富营养状态评价的叶绿素chl_a、总磷TP、总氮TN、透明度SD、高锰酸盐CODmn五个参数指标,利用综合营养状态指数法对整体水域进行水质富营养化评价,得出龙泉湖目前处于中度营养状态,并初步进行了准确性分析论证。
In order to study the eutrophication status of Chengdu water,we selected the Longquan Lake as the research object.Based on the field data collected from the Longquan lake,then we can accurately evaluate the eutrophication level of Longquan Lake water.Through measuring parameters＇ s concentration of Longquan Lake water and processing spectral curve in the field,we got the sensitive wave bands or band combination for relevant water inversion,five water quality parameters inversion formula is obtained.Then using these formulas to evaluate the eutrophication level of Gaofen-1Satellite Data which have been pre processed.After the analysis in the evaluation of various parameters,we choose chlorophyll_a,Total phosphorus,total nitrogen,potassium permanganate and transparency as evaluation index that suitable for Longquan Lake Eutrophication status Evaluation.Using comprehensive nutrition state index method to assess the eutrophication of integral water.Then we get the conclusion is that Longquan Lake is currently in the moderate nutritional status,and preliminary analysis of the accuracy of the argument.
出处
《地质灾害与环境保护》
2016年第2期57-62,共6页
Journal of Geological Hazards and Environment Preservation
关键词
龙泉湖
富营养化
遥感影像
高分一号卫星
浓度反演
Longquan Lak
eutrophication
remote sensing image
Gaofen-1Satellite
con centration inversion
