Retrieving instantaneous extinction of aerosol undetected by the CALIPSO layer detection algorithm
نویسندگان
چکیده
Abstract. Aerosols significantly affect the Earth–atmosphere energy balance and climate change by acting as cloud condensation nuclei. Specifically, susceptibility of precipitation to aerosols is stronger when are faint but tends be saturated in polluted conditions. However, previous methodologies generally miss these based on instantaneous observations because they too optically thin detected therefore usually unretrieved. This result a large underestimation quantifying aerosol impacts. Here, we focus retrieving verifying extinction undetected CALIPSO layer detection algorithm global scale. Using during Stratospheric Aerosol Gas Experiment III International Space Station (SAGE III/ISS) constraints, lidar ratios estimated with median 42.2 24.5 sr at stratosphere troposphere, respectively. The retrieved night-time shows good agreement independent 12-month SAGE III/ISS product 1∘ average. corresponding correlation coefficient averaged normalized root-mean-square error 0.66 % 100.6 %, minimum coefficients can extended 10−3 10−4 km−1 an uncertainty 35 125 night-time, retrieval daytime has positive bias relatively low due signal-to-noise ratio caused sunlight. study great potential for improving understanding variations quantification impacts change.
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2022
ISSN: ['1680-7316', '1680-7324']
DOI: https://doi.org/10.5194/acp-22-10589-2022