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首页> 外文会议>Conference on calibration of passive remote observing optical and microwave instrumentation >Results of calibrations of the NOAA-11 AVHRR made by reference to calibrated SPOT imagery at White Sands N.M.
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Results of calibrations of the NOAA-11 AVHRR made by reference to calibrated SPOT imagery at White Sands N.M.

机译：NOAA-11 AVHRR的校准结果是在白色沙滩上校准的现场图像制成的NOAA-11 AVHRR。

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摘要

The calibration method reported here makes use of the reflectances of several large, uniform areas determined from calibrated and atmospherically corrected SPOT Haute Resolution Visible (HRV) scenes of White Sands, New Mexico. These reflectances were used to predict the radiances in the first two channels of the NOAA-11 Advanced Very High Resolution Radiometer (AVHRR). The digital counts in the AVHRR image corresponding to these known reflectance areas were determined by the use of two image registration techniques. The plots of digital counts versus pixel radiance provided the calibration gains and offsets for the AVHRR. A reduction in the gains of 4% and 13% in channels 1 and 2, respectively, was found during the period 19 November 1988 to 21 June 1990. An error budget is presented for the method and is extended to the case of cross-calibrating sensors on the same orbital platform in the Earth Observing System (Eos) era.
机译：这里报道的校准方法利用了几种大型均匀区域的反射，该区域由校准和大气纠正的斑点高级分辨率可见（HRV）的白色沙子，新墨西哥的场景。这些反射物用于预测NOAA-11先进的非常高分辨率辐射计（AVHRR）的前两个通道中的辐射。通过使用两个图像配准技术来确定与这些已知的反射区域对应的AVHRR图像中的数字计数。数字计数与像素辐射的曲线图提供了AVHRR的校准增益和偏移。在1990年11月19日至6月21日，分别在1980年11月19日期间发现了4％和13％的收益减少。该方法提出了错误预算，并扩展到交叉校准的情况地球观测系统（EOS）时代相同轨道平台上的传感器。

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