Thermal infrared dust optical depth and coarse-mode effective diameter over oceans retrieved from collocated MODIS and CALIOP observations

Abstract µ m (DAOD10 µ m) and the coarse-mode dust effective diameter (D eff) over global oceans. The accuracy of the D eff D eff 10 µ m 10.6 µ m R ∼ 0.7) and a significant reduction in (∼ 50  %) retrieval uncertainties largely thanks to the better constraint on dust size. In a climatological comparison, the seasonal and regional (2 ∘ × 5 ∘ 10 µ m R = 0.9), Indian Ocean (IO; R = 0.8) and North Pacific (NP; R = 0.7)). D eff D eff ∼ 50  % reduction in the number of retrievals with D eff > 5  µ m from 15 to 35∘  W and a stable trend of D eff µ m from 35∘  W throughout the Caribbean Sea (90∘  W). Over NP in spring, only ∼ 5  % of retrieved pixels with D eff > 5  µ m are found from 150 to 180∘  E, while the mean D eff µ m throughout eastern NP. To the best of our knowledge, this study is the first to retrieve both DAOD and coarse-mode dust particle size over global oceans for multiple years. This retrieval dataset provides insightful information for evaluating dust longwave radiative effects and coarse-mode dust particle size in models.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Thermal infrared dust optical depth and coarse-mode effective diameter over oceans retrieved from collocated MODIS and CALIOP observations ; volume:23 ; number:14 ; year:2023 ; pages:8271-8304 ; extent:34 ; Atmospheric chemistry and physics ; 23, Heft 14 (2023), 8271-8304 (gesamt 34)

Contributors, Places and Time

• Creator: Zheng, Jianyu ; Zhang, Zhibo ; Yu, Hongbin ; Garnier, Anne ; Song, Qianqian ; Wang, Chenxi ; Di Biagio, Claudia ; Kok, Jasper ; Derimian, Yevgeny ; Ryder, Claire

Further information

• DOI: 10.5194/acp-23-8271-2023
• URN: urn:nbn:de:101:1-2023072704213078571197
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:53 AM CEST