Blar i NORCE vitenarkiv på forfatter "Parker, Douglas John"
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Effects of the Congo Basin Rainforest on Rainfall Patterns
Barimalala, Rondrotiana; Kolstad, Erik Wilhelm; Parker, Douglas John; Williams, D. Aled (Research report, 2023)Large-scale deforestation in the Congo Basin has an impact on rainfall patterns, both in the Basin and beyond. Factors like socio-economic drivers contribute to ongoing deforestation, and forest loss rates are expected to ... -
Effects on early monsoon rainfall in West Africa due to recent deforestation in a convection-permitting ensemble
Crook, Julia; Klein, Cornelia; Folwell, Sonja; Taylor, Christopher M.; Parker, Douglas John; Bamba, Adama; Kouadio, Kouakou (Peer reviewed; Journal article, 2023)Tropical deforestation can have a significant effect on climate, but research attention has been directed mostly towards Amazonian deforestation. The southern part of West Africa (a region dependent on rain-fed agriculture ... -
Nowcasting tracks of severe convective storms in West Africa from observations of land surface state
Taylor, Christopher M; Klein, Cornelia; Dione, Cheikh; Parker, Douglas John; Marsham, John; Abdoulahat Diop, Cheikh; Fletcher, Jennifer; Saidou Chaibou, Abdoul Aziz; Nafissa, Dignon Bertin; Semeena, Valiyaveetil Shamsudheen; Cole, Steven J; Anderson, Seonaid R (Peer reviewed; Journal article, 2022)In tropical convective climates, where numerical weather prediction of rainfall has high uncertainty, nowcasting provides essential alerts of extreme events several hours ahead. In principle, short-term prediction of intense ... -
Synoptic-scale and mesoscale controls for tornadogenesis on cold fronts: Shear-zone vortex-genesis in a developing frontal wave
Clark, Matthew R; Parker, Douglas John; Hanley, Kirsty E (Peer reviewed; Journal article, 2021)High-resolution model simulations and radar observations are used to investigate the onset of vortex-genesis in a tornadic narrow cold-frontal rain band (NCFR). The timing and location of vortex-genesis was strongly ... -
Upper-level midlatitude troughs in boreal winter have an amplified low-latitude linkage over Africa
Ward, Neil; Fink, Andreas H.; Keane, Richard J.; Parker, Douglas John (Peer reviewed; Journal article, 2022)In boreal winter, strong upper-level midlatitude troughs across the Atlantic–Africa–southwestern Asia sector generate substantial tropical–extratropical interaction and have become recognized as important factors in some ...