Zobrazeno 1 - 10 of 45 pro vyhledávání: '"Erik W. Kolstad"'
1
Akademický článek
Challenges and ways forward for sustainable weather and climate services in Africa
Autor: Benjamin Lamptey, Salah SAHABI ABED, Masilin Gudoshava, Joseph Mutemi, Mary-Jane Bopape, Elijah Adesanya Adefisan, Moudi Pascal Igri, Ibrah Seidou Sanda, Ousmane Ndiaye, Douglas J. Parker, Andrew J. Dougill, Andreas H. Fink, Peter Knippertz, Steve Woolnough, Erik W. Kolstad
Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-4 (2024)
Sustainability of African weather and climate information can only be ensured by investing in improved scientific understanding, observational data, and model capability. These requirements must be underpinned by capacity development, knowledge manag
Externí odkaz: https://doaj.org/article/d952815287bd46b6852472c7b25dcc00
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2
Akademický článek
Sensitivity of Rainfall Extremes to Unprecedented Indian Ocean Dipole Events
Autor: David MacLeod, Erik W. Kolstad, Katerina Michaelides, Michael Bliss Singer
Publikováno v: Geophysical Research Letters, Vol 51, Iss 5, Pp n/a-n/a (2024)
Abstract Strong positive Indian Ocean Dipole (pIOD) events like those in 1997 and 2019 caused significant flooding in East Africa. While future projections indicate an increase in pIOD events, limited historical data hinders a comprehensive understan
Externí odkaz: https://doaj.org/article/449e82414a88473cac5c0bc55bac6551
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3
Akademický článek
Downscaling an intense precipitation event in complex terrain: the importance of high grid resolution
Autor: Marie Pontoppidan, Joachim Reuder, Stephanie Mayer, Erik W. Kolstad
Publikováno v: Tellus: Series A, Dynamic Meteorology and Oceanography, Vol 69, Iss 1 (2017)
Floods due to intense rainfall are a major hazard to both people and infrastructure in western Norway. Here steep orography enhances precipitation and the complex terrain channels the runoff into narrow valleys and small rivers. In this study we inve
Externí odkaz: https://doaj.org/article/3ed1666599c84adf9bbef3881435a9bc
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6
Lagged oceanic effects on the East African short rains
Autor: Erik W. Kolstad, Dave MacLeod
Publikováno v: Climate Dynamics
The East African ‘short rains’ in October–December (OND) exhibit large interannual variability. Drought and flooding are not unusual, and long-range rainfall forecasts can guide planning and preparedness for such events. Although seasonal forec
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::624b29ae22581756ddb12f819a529a59
https://hdl.handle.net/11250/2998608
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7
Diverse Surface Signatures of Stratospheric Polar Vortex Anomalies
Autor: Daniela Domeisen, Amy Butler, Ole Wulff, Simon Lee, Erik W. Kolstad
Publikováno v: Journal of Geophysical Research: Atmospheres, 127 (20)
Journal of Geophysical Research: Atmospheres, vol. 127, no. 20
Journal of Geophysical Research (JGR): Atmospheres
The Arctic stratospheric polar vortex is an important driver of winter weather and climate variability and predictability in North America and Eurasia, with a downward influence that on average projects onto the North Atlantic Oscillation (NAO). Whil
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2375606adc1873c3e916349e021bbd44
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8
Large‐scale regional model biases in the extratropical North Atlantic storm track and impacts on downstream precipitation
Autor: Roy Rasmussen, Changhai Liu, Asgeir Sorteberg, Marie Pontoppidan, Erik W. Kolstad, Stefan Sobolowski
Publikováno v: Quarterly Journal of the Royal Meteorological Society
Global climate models have circulation biases that the community aims to reduce, for instance through high‐resolution dynamical downscaling. We used the Weather Research and Forecasting model (WRF) to downscale both ERA‐Interim and a bias‐corre
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::283bd6d1caf44e3d1ba0f3c784bbde62
https://doi.org/10.1002/qj.3588
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9
Tracing North Atlantic Oscillation Forecast Errors to Stratospheric Origins, with a new analysis of the 2021 winter
Autor: Daniela I. V. Domeisen, Tim Woollings, Erik W. Kolstad, C. Ole Wulff
The North Atlantic Oscillation (NAO) is the main driver of weather variability in parts of Eurasia, Greenland, North America, and North Africa on a range of time scales. Successful extended-range NAO predictions would equate to improved predictions o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f2c41c8b65653689afb2889c81fb0fa3
https://doi.org/10.5194/egusphere-egu21-14216
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10
Tracing North Atlantic Oscillation forecast errors to stratospheric origins
Autor: Erik W. Kolstad, Tim Woollings, C. Ole Wulff, Daniela I. V. Domeisen
Publikováno v: Journal of Climate, 33 (21)
The North Atlantic Oscillation (NAO) is the main driver of weather variability in parts of Eurasia, Greenland, North America, and North Africa on a range of time scales. Successful extended-range NAO predictions would equate to improved predictions o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2131907407d04cfd5cf95c0b928a89e2
https://hdl.handle.net/20.500.11850/430689
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