王鑫华; 邢前国
发表期刊海岸科学
2020-09-21
卷号7期号:2页码:1-9
关键词高分一号环境卫星浒苔混合像元监测能力
研究领域海洋遥感
英文摘要Based on the domestic satellites WFV images of GF-1 with 16m resolution and CCD images of HJ with 30m resolution, the monitoring capability about Enteromorpha of two kinds of data in different stages in southern Yellow Sea was compared, and we analyzed the reasons of differences between the monitoring results of two kinds of data. The results show that: 1) During the growth 8 海 岸 科 学 2020 年 and outbreak of Ulva prolifera, its own shape and patch composition changed significantly, which would lead to changes in the number of mixed pixels. 2) The coverage area of Enteromorpha of HJ satellite monitored from 6. 18% to 49. 86% more than that of GF-1, and the monitoring results of different stages were significantly different, while little differences in the same stage and different periods. 3) Through the comparison of the monitoring area of the two kinds of synchronous satellite data and the analysis of the composition of Enteromorpha patches, it was found that the changes of Enteromorpha patches would lead to changes in the mixed pixels, which could result in certain differences in the monitoring results of the two kinds of data. In addition, satellite imaging data, cloud cover and other external factors will also have an impact on the monitoring results.
中文摘要基于国产 16 m 分辨率高分一号 WFV 影像和 30 m 分辨率环境卫星 CCD 影像,对两种数据在南黄海浒苔 暴发各阶段的监测能力进行对比,并分析两种数据监测结果差异的原因。 结果表明:1) 浒苔生长暴发过程中,自身形 状和斑块组成发生了显著的变化,会导致混合像元数量产生变化;2) 环境卫星比高分一号多监测了 6． 18% ~ 49． 86% 的浒苔覆盖面积,各阶段监测结果差异明显,同一阶段不同时期相差较小;3) 通过对两种同步卫星数据监测面积的对 比和浒苔斑块组成分析,发现浒苔斑块变化会导致混合像元产生变化,导致两种数据的监测结果产生一定的差异。 此 外,卫星成像时间、云量变化等外界因素也会对监测结果造成一定影响。
语种中文
关键词[WOS]GF-1; HJ satellite; Enteromorpha; Mixed pixels; Monitoring capability
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/30239
专题《海岸科学》
中科院海岸带环境过程与生态修复重点实验室
作者单位1.中国科学院海岸带环境过程与生态修复重点实验室(烟台海岸带研究所);
2.中国科学院大学
推荐引用方式
GB/T 7714王鑫华,邢前国. 基于国产高分环境卫星的南黄海绿潮监测对比研究[J]. 海岸科学,2020,7(2):1-9.
APA王鑫华,&邢前国.(2020).基于国产高分环境卫星的南黄海绿潮监测对比研究.海岸科学,7(2),1-9.
MLA王鑫华,et al."基于国产高分环境卫星的南黄海绿潮监测对比研究".海岸科学 7.2(2020):1-9.
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