Radiative Examination of Developing African Easterly Waves and Saharan Dust Interactions: Comparative Insights from Reanalysis and NASA Airborne Observations
This study thoroughly examines the impact of aerosols on atmospheric heating rates over the North Atlantic Ocean, with a specific focus on developing African Easterly Waves (AEWs). It utilizes data from the NASA DC-8 aircraft, dropsonde profiles, lidar observations, and satellite-based precipitation...
Main Authors: | , |
---|---|
Format: | Text |
Language: | English |
Published: |
2024
|
Subjects: | |
Online Access: | https://doi.org/10.5194/egusphere-2023-2972 https://egusphere.copernicus.org/preprints/2024/egusphere-2023-2972/ |
id |
ftcopernicus:oai:publications.copernicus.org:egusphere116706 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:egusphere116706 2024-09-15T18:23:26+00:00 Radiative Examination of Developing African Easterly Waves and Saharan Dust Interactions: Comparative Insights from Reanalysis and NASA Airborne Observations Burgess, Ruby Winter Oyola-Merced, Mayra Ivelisse 2024-01-16 application/pdf https://doi.org/10.5194/egusphere-2023-2972 https://egusphere.copernicus.org/preprints/2024/egusphere-2023-2972/ eng eng doi:10.5194/egusphere-2023-2972 https://egusphere.copernicus.org/preprints/2024/egusphere-2023-2972/ eISSN: Text 2024 ftcopernicus https://doi.org/10.5194/egusphere-2023-2972 2024-08-28T05:24:15Z This study thoroughly examines the impact of aerosols on atmospheric heating rates over the North Atlantic Ocean, with a specific focus on developing African Easterly Waves (AEWs). It utilizes data from the NASA DC-8 aircraft, dropsonde profiles, lidar observations, and satellite-based precipitation data obtained during NASA’s CPEX-CV field campaign, as well as MERRA-2 and CAMS reanalyses. Using a four-stream radiative transfer model, the research focuses specifically on days characterized by Saharan dust coinciding with AEWs and tropical storm development and also contrasts its findings with a notable dust-only event in June 2020. The findings reveal notable differences in shortwave (SW) and longwave/infrared (LW/IR) heating rates, underscoring the persistent challenges in accurately representing aerosol effects in the atmosphere, even after assimilating observational data. These discrepancies persisted on days with both background and high dust concentrations, emphasizing the challenges in accurately representing aerosol radiative effects in models and highlighting the urgent need for improved aerosol representation in reanalysis datasets. Text North Atlantic Copernicus Publications: E-Journals |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
This study thoroughly examines the impact of aerosols on atmospheric heating rates over the North Atlantic Ocean, with a specific focus on developing African Easterly Waves (AEWs). It utilizes data from the NASA DC-8 aircraft, dropsonde profiles, lidar observations, and satellite-based precipitation data obtained during NASA’s CPEX-CV field campaign, as well as MERRA-2 and CAMS reanalyses. Using a four-stream radiative transfer model, the research focuses specifically on days characterized by Saharan dust coinciding with AEWs and tropical storm development and also contrasts its findings with a notable dust-only event in June 2020. The findings reveal notable differences in shortwave (SW) and longwave/infrared (LW/IR) heating rates, underscoring the persistent challenges in accurately representing aerosol effects in the atmosphere, even after assimilating observational data. These discrepancies persisted on days with both background and high dust concentrations, emphasizing the challenges in accurately representing aerosol radiative effects in models and highlighting the urgent need for improved aerosol representation in reanalysis datasets. |
format |
Text |
author |
Burgess, Ruby Winter Oyola-Merced, Mayra Ivelisse |
spellingShingle |
Burgess, Ruby Winter Oyola-Merced, Mayra Ivelisse Radiative Examination of Developing African Easterly Waves and Saharan Dust Interactions: Comparative Insights from Reanalysis and NASA Airborne Observations |
author_facet |
Burgess, Ruby Winter Oyola-Merced, Mayra Ivelisse |
author_sort |
Burgess, Ruby Winter |
title |
Radiative Examination of Developing African Easterly Waves and Saharan Dust Interactions: Comparative Insights from Reanalysis and NASA Airborne Observations |
title_short |
Radiative Examination of Developing African Easterly Waves and Saharan Dust Interactions: Comparative Insights from Reanalysis and NASA Airborne Observations |
title_full |
Radiative Examination of Developing African Easterly Waves and Saharan Dust Interactions: Comparative Insights from Reanalysis and NASA Airborne Observations |
title_fullStr |
Radiative Examination of Developing African Easterly Waves and Saharan Dust Interactions: Comparative Insights from Reanalysis and NASA Airborne Observations |
title_full_unstemmed |
Radiative Examination of Developing African Easterly Waves and Saharan Dust Interactions: Comparative Insights from Reanalysis and NASA Airborne Observations |
title_sort |
radiative examination of developing african easterly waves and saharan dust interactions: comparative insights from reanalysis and nasa airborne observations |
publishDate |
2024 |
url |
https://doi.org/10.5194/egusphere-2023-2972 https://egusphere.copernicus.org/preprints/2024/egusphere-2023-2972/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
eISSN: |
op_relation |
doi:10.5194/egusphere-2023-2972 https://egusphere.copernicus.org/preprints/2024/egusphere-2023-2972/ |
op_doi |
https://doi.org/10.5194/egusphere-2023-2972 |
_version_ |
1810463644120514560 |