...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of remote sensing >Estimating chlorophyll-a concentration using first-derivative spectra in coastal water
【24h】

Estimating chlorophyll-a concentration using first-derivative spectra in coastal water

机译：利用一阶导数光谱估算沿海水域中的叶绿素a浓度

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study was intended to apply the technique of derivative analysis to estimate algal chlorophyll concentration in Pensacola Bay, Florida. The data collection was conducted over the 16 sampling sites on three separate occasions. A portable field spectroradiometer was used to collect the upwelling radiance of water and reference panel at each sampling station. The instrument records a continuous spectrum in 512 bands ranging from 350nm to 1050nm, with 1.37nm spectral resolution. The first derivatives were computed and correlated with the chlorophyll-a concentration. The results indicated the first derivatives at 630-645 nm, 660-670 nm, 680-687 nm and 700-735 nm were correlated strongly with chlorophyll-a. The R values reached 0.858 for the wavelength at 686.7 nm. The results support the hypothesis that derivative spectra are less impacted by wave effects and, therefore, are an effective tool for estimating chlorophyll concentration.
机译：这项研究旨在应用导数分析技术估算佛罗里达州彭萨科拉湾的藻类叶绿素浓度。在三个不同的场合对16个采样点进行了数据收集。在每个采样站，使用便携式场光谱辐射计收集水和参考板的上升流辐射。该仪器记录了从350nm到1050nm的512个波段的连续光谱，光谱分辨率为1.37nm。计算一阶导数并将其与叶绿素-a浓度相关。结果表明，在630-645 nm，660-670 nm，680-687 nm和700-735 nm的一阶导数与叶绿素-a密切相关。对于686.7nm处的波长，R值达到0.858。结果支持这样的假设，即导数谱受波效应的影响较小，因此是估算叶绿素浓度的有效工具。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号