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Surface aerosol radiative forcing derived from collocated ground-based radiometric observations during PRIDE, SAFARI, and ACE-Asia

机译:在PRIDE,SAFARI和ACE-Asia期间从并置的地面辐射观测获得的表面气溶胶辐射强迫

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An approach is presented to estimate the surface aerosol radiative forcing by use of collocated cloud-screened narrowband spectral and thermal-offset-corrected radiometric observations during the Puerto Rico Dust Experiment 2000, South African Fire Atmosphere Research Initiative (SAFARI) 2000, and Aerosol Characterization Experiment-Asia 2001. We show that aerosol optical depths from the Multiple-Filter Rotating Shadowband Radiometer data match closely with those from the Cimel sun-photometer data for two SAFARI-2000 dates. The observed aerosol radiative forcings were interpreted on the basis of results from the Fu-Liou radiative transfer model, and, in some cases, cross checked with satellite-derived forcing parameters. Values of the aerosol radiative forcing and forcing efficiency, which quantifies the sensitivity of the surface fluxes to the aerosol optical depth, were generated on the basis of a differential technique for all three campaigns, and their scientific significance is discussed.
机译:在2000年波多黎各粉尘试验,2000年南非火气研究计划(SAFARI)和气溶胶表征过程中,提出了一种通过使用并置的云屏蔽窄带光谱和热偏移校正的辐射观测来估算表面气溶胶辐射强迫的方法。 2001年亚洲实验。我们显示,两次过滤SAFARI-2000日期的多重过滤器旋转阴影带辐射计数据中的气溶胶光学深度与Cimel太阳光度计数据中的气溶胶光学深度非常匹配。根据Fu-Liou辐射传输模型的结果解释了观测到的气溶胶辐射强迫,并在某些情况下使用了卫星衍生的强迫参数进行了交叉检查。在所有三种运动的差分技术的基础上,得出了气溶胶辐射强迫和强迫效率的值,该值量化了表面通量对气溶胶光学深度的敏感性,并讨论了它们的科学意义。

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    《Applied optics》 |2003年第27期|共12页
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