首页> 外文学位 >Mapping chlorophyll a concentration in Oneida Lake, New York using remote sensing and a semi-analytical reflectance model as a proxy for detecting harmful algal blooms.
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Mapping chlorophyll a concentration in Oneida Lake, New York using remote sensing and a semi-analytical reflectance model as a proxy for detecting harmful algal blooms.

机译:使用遥感和半分析反射模型作为代理来检测有害藻华,从而绘制纽约奥尼达湖中叶绿素的浓度图。

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摘要

Oneida Lake in central New York is a victim of noxious blue-green algae. One common pigment in these organisms is chlorophyll a, which has unique optical properties. In this research, in situ reflectance, spectrophotometric absorption and fluorometric chlorophyll a were measured at six stations on Oneida Lake on September 29 th, 2004. Remotely sensed images, captured on September 29 th and October 1st, 2004 by the Medium Resolution Imaging Spectroradiometer sensor were preprocessed and input into the semi-analytical optimization reflectance model by Roesler and Perry.; Though an exact correlation was not observed between the laboratory and image-predicted chlorophyll a, their observed ranges were similar. The availability of in situ reflectance and absorption for September 29th, 2004 allowed us to correct the September image and tune the reflectance model, thus giving a more accurate chlorophyll a prediction for the September image compared to the October image. The techniques show good potential for mapping chlorophyll a for smaller lakes.
机译:纽约市中心的奥尼达湖是有毒蓝藻的受害者。这些生物中一种常见的色素是叶绿素a,它具有独特的光学特性。在这项研究中,于2004年9月29日在奥尼达湖的六个站点上测量了原位反射率,分光光度吸收和荧光叶绿素a。2004年9月29日和10月1日用中分辨率成像分光辐射计传感器拍摄的遥感图像进行了预处理,并由Roesler和Perry输入到半分析优化反射率模型中。尽管在实验室和图像预测的叶绿素a之间未观察到确切的相关性,但它们的观察范围相似。 2004年9月29日可获得的原位反射率和吸收率使我们能够校正9月图像并调整反射率模型,从而与10月图像相比,对9月图像的叶绿素预测更为准确。该技术显示出在较小湖泊中绘制叶绿素a的良好潜力。

著录项

  • 作者

    Stephen, Pauline P.;

  • 作者单位

    State University of New York College of Environmental Science and Forestry.;

  • 授予单位 State University of New York College of Environmental Science and Forestry.;
  • 学科 Geotechnology.; Engineering Environmental.; Biology Limnology.; Remote Sensing.
  • 学位 M.S.
  • 年度 2007
  • 页码 113 p.
  • 总页数 113
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质学;环境污染及其防治;遥感技术;
  • 关键词

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