Matches in SemOpenAlex for { <https://semopenalex.org/work/W4322007042> ?p ?o ?g. }
Showing items 1 to 72 of
72
with 100 items per page.
- W4322007042 abstract "Extratropical cyclone airstreams, such as warm conveyor belts (WCBs), are linked to strong precipitation along with latent heat release at low levels and, thus, changes in the low-level PV distribution. Previous studies have shown significant changes in PV anomalies in a future climate under the RCP8.5 scenario, which are also associated with changes in strong near-surface winds. However, the source of these PV anomalies is still unclear, especially at upper levels. Based on the 1% strongest winter-cyclones in the North Atlantic (NA) region over the two periods 1990-2000 and 2091-2100, we adopt a Lagrangian perspective to investigate such changes in CESM Large Ensemble simulations.Backward trajectories are computed to explicitly identify the contributions of diabatic processes to future changes in cyclone-associated PV anomalies. Moreover, the role of specific airstreams in PV generation/destruction is examined with Lagrangian composites.The results show a sinificant change in the mean trajectory properties 24 hours before the maximum cyclone intensity at low and upper levels. This period of 24 hours is taken to construct Lagrangian composites at 700 hPa and 250 hPa, which provide insights into changes in WCB and dry intrusion (DI) airstreams. We further analyze these airstrem changes by constructing cross sections downstream (WCB regime) and at the equatorward side (DI regime) of the cyclone center.In general, increased diabatic heating along backward trajectories amplifies positive PV anomalies near the cyclone center at both lower and upper levels in a warmer future climate. More specifically, a poleward and upward shift of the WCBs with a larger PV production at middle levels are is found. DIs near the cyclone center are projected to be responsible for stronger PV production at low levels to the south of the cyclone center. At upper levels, the decreased PV anomaly to the south of the cyclone center results from a combined effect of a decreased climatological PV in the NA region and a shift in the origin of the air masses. The increasing importance of diabatic processes in a wamer climate suggests that a better representation of these processes in climate models is necessary to reduce uncertainties." @default.
- W4322007042 created "2023-02-26" @default.
- W4322007042 creator A5059142422 @default.
- W4322007042 creator A5079106626 @default.
- W4322007042 date "2023-05-15" @default.
- W4322007042 modified "2023-09-27" @default.
- W4322007042 title "Future changes in North Atlantic winter cyclones in CESM-LE simulations from a Lagrangian-composite perspective" @default.
- W4322007042 doi "https://doi.org/10.5194/egusphere-egu23-6851" @default.
- W4322007042 hasPublicationYear "2023" @default.
- W4322007042 type Work @default.
- W4322007042 citedByCount "0" @default.
- W4322007042 crossrefType "posted-content" @default.
- W4322007042 hasAuthorship W4322007042A5059142422 @default.
- W4322007042 hasAuthorship W4322007042A5079106626 @default.
- W4322007042 hasConcept C107054158 @default.
- W4322007042 hasConcept C109663097 @default.
- W4322007042 hasConcept C115852967 @default.
- W4322007042 hasConcept C120221134 @default.
- W4322007042 hasConcept C121332964 @default.
- W4322007042 hasConcept C127313418 @default.
- W4322007042 hasConcept C153294291 @default.
- W4322007042 hasConcept C2777864850 @default.
- W4322007042 hasConcept C29141058 @default.
- W4322007042 hasConcept C37914503 @default.
- W4322007042 hasConcept C39432304 @default.
- W4322007042 hasConcept C41008148 @default.
- W4322007042 hasConcept C42935608 @default.
- W4322007042 hasConcept C43058520 @default.
- W4322007042 hasConcept C49204034 @default.
- W4322007042 hasConcept C53469067 @default.
- W4322007042 hasConcept C72319357 @default.
- W4322007042 hasConcept C89901390 @default.
- W4322007042 hasConcept C91586092 @default.
- W4322007042 hasConcept C9390403 @default.
- W4322007042 hasConcept C97355855 @default.
- W4322007042 hasConceptScore W4322007042C107054158 @default.
- W4322007042 hasConceptScore W4322007042C109663097 @default.
- W4322007042 hasConceptScore W4322007042C115852967 @default.
- W4322007042 hasConceptScore W4322007042C120221134 @default.
- W4322007042 hasConceptScore W4322007042C121332964 @default.
- W4322007042 hasConceptScore W4322007042C127313418 @default.
- W4322007042 hasConceptScore W4322007042C153294291 @default.
- W4322007042 hasConceptScore W4322007042C2777864850 @default.
- W4322007042 hasConceptScore W4322007042C29141058 @default.
- W4322007042 hasConceptScore W4322007042C37914503 @default.
- W4322007042 hasConceptScore W4322007042C39432304 @default.
- W4322007042 hasConceptScore W4322007042C41008148 @default.
- W4322007042 hasConceptScore W4322007042C42935608 @default.
- W4322007042 hasConceptScore W4322007042C43058520 @default.
- W4322007042 hasConceptScore W4322007042C49204034 @default.
- W4322007042 hasConceptScore W4322007042C53469067 @default.
- W4322007042 hasConceptScore W4322007042C72319357 @default.
- W4322007042 hasConceptScore W4322007042C89901390 @default.
- W4322007042 hasConceptScore W4322007042C91586092 @default.
- W4322007042 hasConceptScore W4322007042C9390403 @default.
- W4322007042 hasConceptScore W4322007042C97355855 @default.
- W4322007042 hasLocation W43220070421 @default.
- W4322007042 hasOpenAccess W4322007042 @default.
- W4322007042 hasPrimaryLocation W43220070421 @default.
- W4322007042 hasRelatedWork W2016503175 @default.
- W4322007042 hasRelatedWork W2298948456 @default.
- W4322007042 hasRelatedWork W3090688137 @default.
- W4322007042 hasRelatedWork W3091632627 @default.
- W4322007042 hasRelatedWork W4211235336 @default.
- W4322007042 hasRelatedWork W4214607025 @default.
- W4322007042 hasRelatedWork W4220871227 @default.
- W4322007042 hasRelatedWork W4241930875 @default.
- W4322007042 hasRelatedWork W4293510669 @default.
- W4322007042 hasRelatedWork W4312190565 @default.
- W4322007042 isParatext "false" @default.
- W4322007042 isRetracted "false" @default.
- W4322007042 workType "article" @default.