Naslov
Evolution of the atmospheric boundary layer in southern West Africa – an overview from the DACCIWA field campaign

Autori
Kalthoff, Norbert ; Lohou, Fabienne ; Brooks, Barbara ; Jegede, Gbenga ; Adler, Bianca ; Ajao, Adewale ; Ayoola, Muritala ; Babić, Karmen ; Bessardon, Geoffrey ; Delon, Claire ; Dione, Cheikh ; Handwerker, Jan ; Jambert, Corinne ; Kohler, Martin ; Lothon, Marie ; Pedruzo-Bagazgoitia, Xabier ; Smith, Victoria ; Sunmonu, Lukman ; Wieser, Andreas

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
European Geosciences Union General Assembly 2017 (EGU2017)

Mjesto i datum
Beč, Austrija, 23.04.2017. - 28.04.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Low-level jet, low-level stratus clouds, nocturnal boundary layer, West Africa

Sažetak
In southern West Africa, extended low-level stratus clouds form very frequently during night-time and persist long into the following day influencing the diurnal cycle of the atmospheric boundary layer (ABL). During the course of the day, a transition from nocturnal low-level stratus to stratocumulus, cumulus, and sometimes congestus and possibly cumulonimbus clouds is observed. In June and July 2016, a ground-based field campaign took place in southern West Africa within the framework of the Dynamics-aerosol-chemistry-cloud interactions in West Africa (DACCIWA) project with the aim to identify the meteorological controls on the stratus and the evolution of the ABL. During the measurement period, extensive remote sensing and in-situ measurements were performed at three supersites in Kumasi (Ghana), Savè (Benin) and Ile-Ife (Nigeria). We give an overview of the atmospheric conditions during the whole measurement period focusing on the vertical and temporal distribution of the stratus and relevant related atmospheric features.

Izvorni jezik
Engleski

Znanstvena područja
Geofizika

POVEZANOST RADA