Spatiotemporal Heterogeneity of Aerosol and Cloud Properties Over the Southeast Atlantic: An Observational Analysis

Chang, Ian; Gao, Lan; Burton, Sharon P.; Chen, Hong; Diamond, Michael S.; Ferrare, Richard A.; Flynn, Connor J.; Kacenelenbogen, Meloë; LeBlanc, Samuel E.; Meyer, Kerry G.; Pistone, Kristina; Schmidt, Sebastian; Segal‐Rozenhaimer, Michal; Shinozuka, Yohei; Wood, Robert; Zuidema, Paquita; Redemann, Jens; Christopher, Sundar A.

doi:10.1029/2020gl091469

i

Spatiotemporal Heterogeneity of Aerosol and Cloud Properties Over the Southeast Atlantic: An Observational Analysis

2021
By Chang, Ian ; Gao, Lan ; Burton, Sharon P. ; ...

Details

Journal Title:

Geophysical Research Letters
Personal Author:

Chang, Ian ; Gao, Lan ; Burton, Sharon P. ; Chen, Hong ; Diamond, Michael S. ; Ferrare, Richard A. ; Flynn, Connor J. ; Kacenelenbogen, Meloë ; LeBlanc, Samuel E. ; Meyer, Kerry G. ; Pistone, Kristina ; Schmidt, Sebastian ; Segal‐Rozenhaimer, Michal ; Shinozuka, Yohei ; Wood, Robert ; Zuidema, Paquita ; Redemann, Jens ; Christopher, Sundar A.
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; CSL (Chemical Sciences Laboratory)
Description:

The southeast Atlantic has expansive aerosol plumes overlying clouds for a third of each year. Aerosol optical depths (AODs) were measured from the airborne Sun photometer and lidar during the 2016 NASA ObseRvations of Aerosols above CLouds and their intEractionS (ORACLES) field campaign. We compare these measurements with one another and with collocated Moderate Resolution Imaging Spectroradiometer (MODIS) observations at native spatial resolutions using <15‐min and 3‐h temporal collocation criteria. We find better statistical relationships for the <15‐min temporal resolution, indicating that AODs in the southeast Atlantic commonly vary below three‐hourly temporal scales over MODIS spatial resolutions. We also use the airborne Solar Spectral Flux Radiometer (SSFR) to conduct the first comprehensive evaluation of attenuation‐corrected below‐aerosol cloud optical depths (CODs) from MODIS and the Spinning Enhanced Visible and Infrared Imager (SEVIRI). MODIS COD retrievals improve their agreement with the SSFR when accounting for overlying aerosol attenuation whereas SEVIRI CODs are mostly underestimated.
Source:

Geophysical Research Letters, 48(7)
DOI:

https://doi.org/10.1029/2020gl091469
ISSN:

0094-8276 ; 1944-8007
Format:

pdf
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Rights Information:

Other
Compliance:

Library
Main Document Checksum:

urn:sha-512:c1b8198bf7e98cb50d3416ba8b0c8ea905f1be91a9b3376f6c7571751878b409cbaebe41b11803744d84e956a0cea4929bad55a66fc26d0a02b226985abd1fae
Download URL:

https://repository.library.noaa.gov/view/noaa/68538/noaa_68538_DS1.pdf
File Type:

[PDF - 1.84 MB ]

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