Details

Autor(en) / Beteiligte

• Ryoo, Ju-Mee
• Pfister, Leonhard
• Ueyama, Rei
• Zuidema, Paquita
• Wood, Robert
• Chang, Ian
• Redemann, Jens

Titel

A meteorological overview of the ORACLES campaign over the southeastern Atlantic during 2016-2018: Part 1 - Climatology

Ist Teil von

• Atmospheric chemistry and physics, 2021-11, Vol.21 (21), p.16689

Ort / Verlag

Copernicus GmbH

Erscheinungsjahr

2021

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• In 2016-2018, the ObseRvations of Aerosols above CLouds and their intEractionS (ORACLES) project undertook 3-month-long deployments to the southeastern (SE) Atlantic Ocean using research aircraft to better understand the impact of biomass burning (BB) aerosol transport to the SE Atlantic Ocean on climate. In this (part 1 of the meteorological overview) paper, the climatological features at monthly timescales are investigated. The southern African easterly jet (AEJ-S), defined as the zonal easterlies over 600-700 hPa exceeding 6 m s.sup.-1 around 5-15.sup." S, is a characteristic feature of the mid-level circulation over southern Africa that was also during the deployment months of August 2017, September 2016, and October 2018. Climatologically, the AEJ-S develops at lower altitudes (â¼ 3 km; 700 hPa) between 5-10.sup." S in August, while it develops at around 4 km (â¼ 600 hPa) and further south (5-15.sup." S) in September and October, largely driven by the strong sensible heating over the African plateau.