Matches in SemOpenAlex for { <https://semopenalex.org/work/W1618741032> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W1618741032 abstract "Email: mariotti@ictp.it , coppolae@ictp.it ABSTRACT Results are presented from regional climate model experiments over the African region. Simulated present day climate (1990 to 2007) is examined and compared to climate projections for the 1990 to 2007 period. The model used is the resident regional climate model at the International Centre for Theoretical Physics referred to as RegCM. Horizontal resolution was fixed at 50km as an optimal compromise between computing power and model performance. For the present day simulation, referred to here as the ‘control’ case, boundary conditions were derived from the ERAInterim database. The projected climate simulation, referred to here as the ‘scenario’ case, is intended to respond to a forcing described by the A1B emission scenario. The boundary conditions were derived from the global climate simulation carried out with the ECHAM5 model. The control simulation (forced by ERA-Interim) performs quite well in terms of temperature and precipitation during the eighteen years of validation. The bias differences for RegCM compared with CRU dataset show the West African Monsoon penetrates too far northward during the summer, resulting a negative precipitation bias over the Guinea Coast (Sylla MB. Et al. 2009). With ECHAM forcing we found an opposite bias to that of the ERA-Interim: the monsoon is located too far southward; this illustrates the important of the boundary conditions. The scenario simulation shows a warming of 0.5 to 6 degrees for the period 2081-2100 compared to present day everywhere on the continent and for all seasons. In general, future increases in temperature correspond with areas of decrease precipitation. For example, over the Sahel region precipitation decreases by 40% while the temperatures increases by almost 5 degrees. If precipitation decreases, temperatures can increase due to both reduced cloud cover and a decrease in soil moisture and latent heat flux (i.e., a greater Bowen ratio). Compared to the ECHAM change signal we notice a slightly bigger warming over the Guinea Coast both for summer and winter season. The GCM precipitation change signal over the western African region show a drying of the Sahel and an increase of precipitation over the Guinea Coast. In the regional model the same dipole is shown but slightly shifted to the south. If we compute the two model precipitation regression on to the SST anomaly mean index over the Guinea Coast we obtain a similar precipitation anomaly pattern." @default.
- W1618741032 created "2016-06-24" @default.
- W1618741032 creator A5034918601 @default.
- W1618741032 creator A5039454108 @default.
- W1618741032 creator A5048844940 @default.
- W1618741032 creator A5056274211 @default.
- W1618741032 creator A5060185862 @default.
- W1618741032 creator A5068662920 @default.
- W1618741032 date "2008-12-01" @default.
- W1618741032 modified "2023-09-30" @default.
- W1618741032 title "Dynamical Downscaling of Climate Change Projection over the African Region using the Regional Climate Model (RegCM3)" @default.
- W1618741032 hasPublicationYear "2008" @default.
- W1618741032 type Work @default.
- W1618741032 sameAs 1618741032 @default.
- W1618741032 citedByCount "0" @default.
- W1618741032 crossrefType "journal-article" @default.
- W1618741032 hasAuthorship W1618741032A5034918601 @default.
- W1618741032 hasAuthorship W1618741032A5039454108 @default.
- W1618741032 hasAuthorship W1618741032A5048844940 @default.
- W1618741032 hasAuthorship W1618741032A5056274211 @default.
- W1618741032 hasAuthorship W1618741032A5060185862 @default.
- W1618741032 hasAuthorship W1618741032A5068662920 @default.
- W1618741032 hasConcept C107054158 @default.
- W1618741032 hasConcept C111368507 @default.
- W1618741032 hasConcept C127313418 @default.
- W1618741032 hasConcept C132651083 @default.
- W1618741032 hasConcept C136996986 @default.
- W1618741032 hasConcept C153294291 @default.
- W1618741032 hasConcept C160467669 @default.
- W1618741032 hasConcept C168754636 @default.
- W1618741032 hasConcept C197115733 @default.
- W1618741032 hasConcept C205649164 @default.
- W1618741032 hasConcept C2778760939 @default.
- W1618741032 hasConcept C39432304 @default.
- W1618741032 hasConcept C41156917 @default.
- W1618741032 hasConcept C49204034 @default.
- W1618741032 hasConceptScore W1618741032C107054158 @default.
- W1618741032 hasConceptScore W1618741032C111368507 @default.
- W1618741032 hasConceptScore W1618741032C127313418 @default.
- W1618741032 hasConceptScore W1618741032C132651083 @default.
- W1618741032 hasConceptScore W1618741032C136996986 @default.
- W1618741032 hasConceptScore W1618741032C153294291 @default.
- W1618741032 hasConceptScore W1618741032C160467669 @default.
- W1618741032 hasConceptScore W1618741032C168754636 @default.
- W1618741032 hasConceptScore W1618741032C197115733 @default.
- W1618741032 hasConceptScore W1618741032C205649164 @default.
- W1618741032 hasConceptScore W1618741032C2778760939 @default.
- W1618741032 hasConceptScore W1618741032C39432304 @default.
- W1618741032 hasConceptScore W1618741032C41156917 @default.
- W1618741032 hasConceptScore W1618741032C49204034 @default.
- W1618741032 hasLocation W16187410321 @default.
- W1618741032 hasOpenAccess W1618741032 @default.
- W1618741032 hasPrimaryLocation W16187410321 @default.
- W1618741032 hasRelatedWork W1634875567 @default.
- W1618741032 hasRelatedWork W1949058172 @default.
- W1618741032 hasRelatedWork W1986964993 @default.
- W1618741032 hasRelatedWork W2068639806 @default.
- W1618741032 hasRelatedWork W2074923942 @default.
- W1618741032 hasRelatedWork W2342993412 @default.
- W1618741032 hasRelatedWork W2367340033 @default.
- W1618741032 hasRelatedWork W2777789425 @default.
- W1618741032 hasRelatedWork W2787600398 @default.
- W1618741032 hasRelatedWork W2810545085 @default.
- W1618741032 hasRelatedWork W3034204432 @default.
- W1618741032 hasRelatedWork W3041418709 @default.
- W1618741032 hasRelatedWork W3091802834 @default.
- W1618741032 hasRelatedWork W3134598291 @default.
- W1618741032 hasRelatedWork W3144524185 @default.
- W1618741032 hasRelatedWork W3208411903 @default.
- W1618741032 hasRelatedWork W3213877963 @default.
- W1618741032 hasRelatedWork W42074268 @default.
- W1618741032 hasRelatedWork W622773451 @default.
- W1618741032 hasRelatedWork W1677651890 @default.
- W1618741032 hasVolume "2008" @default.
- W1618741032 isParatext "false" @default.
- W1618741032 isRetracted "false" @default.
- W1618741032 magId "1618741032" @default.
- W1618741032 workType "article" @default.