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• W3118992481 abstract "Accurate and precise characterization of cirrus cloud geometrical and optical properties is essential for better constraining their radiative footprint. A lidar-based retrieval scheme is proposed here, with its performance assessed on fine spatio-temporal observations over the Arctic site of Ny-Ålesund, Svalbard. Two contributions related to cirrus geometrical ( dynamic Wavelet Covariance Transform (WCT) ) and optical properties ( constrained Klett ) are reported. The dynamic WCT rendered cirrus detection more robust, especially for thin cirrus layers that frequently remained undetected by the classical WCT method. Regarding optical characterization, we developed an iterative scheme for determining the cirrus lidar ratio ( LR ci ) that is a crucial parameter for aerosol - cloud discrimination. Building upon the Klett-Fernald method, the LR ci was constrained by an additional reference value . In established methods, such as the double-ended Klett, an aerosol-free reference value is applied. In the proposed constrained Klett , however, the reference value was approximated from cloud-free or low cloud optical depth (COD up to 0.2) profiles and proved to agree with independent Raman estimates. For optically thin cirrus, the constrained Klett inherent uncertainties reached 50% (60-74%) in terms of COD ( LR ci ). However, for opaque cirrus COD ( LR ci ) uncertainties were lower than 10% (15%). The detection method discrepancies (dynamic versus static WCT) had a higher impact on the optical properties of low COD layers (up to 90%) compared to optically thicker ones (less than 10%). The constrained Klett presented high agreement with two established retrievals. For an exemplary cirrus cloud, the constrained Klett estimated the COD 355 ( <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline> <mml:mi>L</mml:mi> <mml:msubsup> <mml:mi>R</mml:mi> <mml:mrow class=MJX-TeXAtom-ORD> <mml:mi>c</mml:mi> <mml:mi>i</mml:mi> </mml:mrow> <mml:mrow class=MJX-TeXAtom-ORD> <mml:mn>355</mml:mn> </mml:mrow> </mml:msubsup> </mml:math> ) at 0.28 ± 0.17 (29 ± 4 sr), the double-ended Klett at 0.27 ± 0.15 (32 ± 4 sr) and the Raman retrievals at 0.22 ± 0.12 (26 ± 11 sr). Our approach to determine the necessary reference value can also be applied in established methods and increase their accuracy. In contrast, the classical aerosol-free assumption led to 44 sr LR ci overestimation in optically thin layers and 2-8 sr in thicker ones. The multiple scattering effect was corrected using Eloranta (1998) and accounted for 50-60% extinction underestimation near the cloud base and 20-30% within the cirrus layers." @default.
• W3118992481 created "2021-01-18" @default.
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• W3118992481 date "2021-03-04" @default.
• W3118992481 modified "2023-09-29" @default.
• W3118992481 title "An extended lidar-based cirrus cloud retrieval scheme: first application over an Arctic site" @default.
• W3118992481 cites W1835526183 @default.
• W3118992481 cites W1852713136 @default.
• W3118992481 cites W1968151054 @default.
• W3118992481 cites W1971219798 @default.
• W3118992481 cites W1995515323 @default.
• W3118992481 cites W1998441368 @default.
• W3118992481 cites W2008074672 @default.
• W3118992481 cites W2009591809 @default.
• W3118992481 cites W2015875244 @default.
• W3118992481 cites W2020598345 @default.
• W3118992481 cites W2029876857 @default.
• W3118992481 cites W2035570184 @default.
• W3118992481 cites W2038350547 @default.
• W3118992481 cites W2041246802 @default.
• W3118992481 cites W2051675011 @default.
• W3118992481 cites W2051856459 @default.
• W3118992481 cites W2059001516 @default.
• W3118992481 cites W2063980464 @default.
• W3118992481 cites W2067498567 @default.
• W3118992481 cites W2069717158 @default.
• W3118992481 cites W2071405466 @default.
• W3118992481 cites W2085028454 @default.
• W3118992481 cites W2086190558 @default.
• W3118992481 cites W2086916879 @default.
• W3118992481 cites W2087199341 @default.
• W3118992481 cites W2106538252 @default.
• W3118992481 cites W2108479099 @default.
• W3118992481 cites W2109606373 @default.
• W3118992481 cites W2113590935 @default.
• W3118992481 cites W2115104015 @default.
• W3118992481 cites W2116487968 @default.
• W3118992481 cites W2117181086 @default.
• W3118992481 cites W2122518875 @default.
• W3118992481 cites W2142438939 @default.
• W3118992481 cites W2143305933 @default.
• W3118992481 cites W2144991971 @default.
• W3118992481 cites W2152320768 @default.
• W3118992481 cites W2154074878 @default.
• W3118992481 cites W2155232959 @default.
• W3118992481 cites W2157862942 @default.
• W3118992481 cites W2158836488 @default.
• W3118992481 cites W2159660063 @default.
• W3118992481 cites W2162703778 @default.
• W3118992481 cites W2168502208 @default.
• W3118992481 cites W2172676685 @default.
• W3118992481 cites W2342822497 @default.
• W3118992481 cites W2345526234 @default.
• W3118992481 cites W2396548994 @default.
• W3118992481 cites W2470224965 @default.
• W3118992481 cites W2470467603 @default.
• W3118992481 cites W2562477910 @default.
• W3118992481 cites W2566939218 @default.
• W3118992481 cites W2587025695 @default.
• W3118992481 cites W2611705577 @default.
• W3118992481 cites W2748388677 @default.
• W3118992481 cites W2790803537 @default.
• W3118992481 cites W2792862060 @default.
• W3118992481 cites W2793252134 @default.
• W3118992481 cites W2808514622 @default.
• W3118992481 cites W2843634981 @default.
• W3118992481 cites W2883051424 @default.
• W3118992481 cites W2899361914 @default.
• W3118992481 cites W2902948481 @default.
• W3118992481 cites W2943522300 @default.
• W3118992481 cites W2956342374 @default.
• W3118992481 cites W2981454149 @default.
• W3118992481 cites W2990565962 @default.
• W3118992481 cites W3001066940 @default.
• W3118992481 cites W3003596193 @default.
• W3118992481 cites W3016037090 @default.
• W3118992481 cites W3035110454 @default.
• W3118992481 cites W3040429231 @default.
• W3118992481 cites W3084580710 @default.
• W3118992481 doi "https://doi.org/10.1364/oe.414770" @default.
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• W3118992481 hasPublicationYear "2021" @default.
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