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CO2湍流通量误差的修正和不确定性研究进展

汪瑛 卞林根 谌志刚

汪瑛, 卞林根, 谌志刚. CO2湍流通量误差的修正和不确定性研究进展. 应用气象学报, 2004, 15(2): 234-244..
引用本文: 汪瑛, 卞林根, 谌志刚. CO2湍流通量误差的修正和不确定性研究进展. 应用气象学报, 2004, 15(2): 234-244.
Wang Ying, Bian Lingen, Chen Zhigang. Correction of errors and uncertainty in the measurements of CO2 turbulent flux. J Appl Meteor Sci, 2004, 15(2): 234-244.
Citation: Wang Ying, Bian Lingen, Chen Zhigang. Correction of errors and uncertainty in the measurements of CO2 turbulent flux. J Appl Meteor Sci, 2004, 15(2): 234-244.

CO2湍流通量误差的修正和不确定性研究进展

资助项目: 

中国气象局气候专项项目 

CORRECTION OF ERRORS AND UNCERTAINTY IN THE MEASUREMENTS OF CO2 TURBULENT FLUX

  • 摘要: 目前国内外对能量和CO2涡动相关通量的测量误差的谱修正缺乏一致性,导致各测量站之间的资料对比难以进行,给全球尺度资料的合成造成很大困难。因此在强调长期CO2通量测量精度的同时,还应该注重确定对测量误差修正的首选方法和研究重点。该文主要介绍了两种用于修正测量仪器误差的谱方法;二维和三维的气流运动对通量误差的影响;资料处理中的误差;夜间CO2通量的测量问题。
  • 图  1  2000年1月两天的比和垂直压力通量的时间序列(引自Leuning,R,1992) [3]

    图  2  一阶滤波器和线性滤波器的位相比较[3]

    图  3  夜间观测的CO2 通量与摩擦速度(u*)的相关性[3]

    图  4  储量修正的CO2 通量与摩擦速度的关系[3]

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出版历程
  • 收稿日期:  2002-09-22
  • 修回日期:  2003-03-10
  • 刊出日期:  2004-04-30

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