• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>MERIS user workshop >VALIDATION OF CHLOROPHYLL FLUORESCENCE DERIVED FROM MERIS ONTHE WEST COAST OF CANADA
【24h】

VALIDATION OF CHLOROPHYLL FLUORESCENCE DERIVED FROM MERIS ONTHE WEST COAST OF CANADA

机译：来自加拿大西部海岸梅里斯市的叶绿素荧光的验证

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

MERIS on Envisat provides images of above-atmosphere spectral radiance in bands at 665, 681 and 709 nm, whichrnwere included in the baseline spectral band-set to allow detection of the fluorescence signal from surface chlorophyll inrnsea water, stimulated by ambient sun and sky light. Images of fluorescence derived from the level 1 MERIS data showrnsignificant patterns in coastal waters of western Canada. We compare the fluorescence signal levels with measurementsrnof extracted chlorophyll from research cruises during 2002 and 2003, with satellite estimates of chlorophyll from thernblue to green ratio observed by MERIS, and with fluorescence measurements made by MODIS. We present an averagernrelation between fluorescence and surface chlorophyll concentration based on a simple model accounting for absorptionrnof stimulating and emitted radiation by chlorophyll pigments, which gives a good fit to the observations. A possiblerndifference is found between the relation for offshore waters and those in coastal straits and inlets.
机译：Envisat上的MERIS提供了在665、681和709 nm波段的高于大气光谱辐射的图像，这些光谱被包括在基线光谱波段集中，从而可以检测到在环境阳光和天光的刺激下，来自表面叶绿素海水的荧光信号。从1级MERIS数据得出的荧光图像显示加拿大西部沿海水域的显着模式。我们将荧光信号水平与2002年和2003年从研究航行中提取的叶绿素的测量值，通过MERIS观测到的蓝绿色比值对卫星叶绿素的估计值以及通过MODIS进行的荧光测量值进行比较。我们基于一个简单的模型来说明荧光和表面叶绿素浓度之间的平均关系，该模型解释了叶绿素色素对吸收吸收的刺激和发出的辐射，这与观察结果非常吻合。在近海水域与沿海海峡和进水口之间的关系之间可能存在差异。

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