A new approach to crystal habit retrieval from far-infrared spectral radiance measurements
Abstract - 1 - 1, is very sensitive to cloud ice crystal shapes; thus, FORUM measurements could also represent an opportunity to study the ice cloud composition in terms of ice crystal habit mixtures. To investigate this possibility, we developed an accurate and advanced scheme allowing us to model ice cloud optical properties – also in cases of clouds composed of mixed ice crystal habits. This feature is in fact necessary because in situ measurements acquired over the years also point out that the shape of ice cloud crystals varies depending on the crystal size range. In our model, the resulting cloud optical properties are also determined by the input habit fractions. Thus, the retrieval of these fractions from spectral radiance measurements can be attempted. Using 375 different cloudy scenarios, we assess the performance of our retrieval scheme in the determination of crystal habit mixtures starting from FORUM-simulated measurements. The most relevant error components affecting the retrieved cloud parameters are not very large and are of random nature; thus, FORUM measurements will allow us to set up an accurate climatology of cloud parameters. To provide an example of the benefit that one could get from the habit mixture retrievals, we also show the improved accuracy of the thermal outgoing fluxes calculations compared to using assumed mixtures.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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A new approach to crystal habit retrieval from far-infrared spectral radiance measurements ; volume:17 ; number:10 ; year:2024 ; pages:3171-3186 ; extent:16
Atmospheric measurement techniques ; 17, Heft 10 (2024), 3171-3186 (gesamt 16)
- Urheber
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Di Natale, Gianluca
Ridolfi, Marco
Palchetti, Luca
- DOI
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10.5194/amt-17-3171-2024
- URN
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urn:nbn:de:101:1-2405300422254.813783960776
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:59 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Di Natale, Gianluca
- Ridolfi, Marco
- Palchetti, Luca
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