Influence of historical urban expansion on the regional climate
A case study in the Paris region with CNRM-Arome
Bibliographic Data
| ID | 19048111 |
|---|---|
| Authors | Léa Corneille (0009-0004-1964-3484, corresponding author), Aude Lemonsu (0000-0001-8894-0088), Vincent Viguié (0000-0002-8994-2648), Cécile Caillaud (0000-0003-2317-4129), Elizabeth Harader-Coustau (0009-0004-7440-8516) |
| Year | 2026 |
| Publication date | 2026-01-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | PREPRINT |
| Venue | SSRN Electronic Journal (REPOSITORY) |
| Journal identifiers | ISSN: 1556-5068 • E-ISSN: 1556-5068 |
| Publisher | RELX Group (Netherlands) (PUBLISHER • NL) |
| DOI | 10.2139/ssrn.6383778 |
| OpenAlex | W7134908432 |
| Language | EN |
| References cited | 41 |
Physical properties of urban covers alter surface-atmosphere exchanges, with feedback on local climate. The inline coupling of urban parametrisations in Convection-Permitting Regional Climate Models (CP-RCMs) is essential to consider these complex interactions, particularly when considering climate and land-use changes. Existing literature addresses consequences of future urbanisation on climate. But there is still no systematic overview of the effects of past urbanisation on regional climate variables and warming trends, informed by both observations and modeling. Taking the Paris region (France) and a continuous time period (2000-2022) as a case study, we analyse two simulations conducted by the CNRM-AROME CP-RCM (2.5 km horizontal resolution) coupled to the TEB Urban Canopy Model: one with the default land use land cover (LULC° map of the model (1990), another with an updated map (2018). Significant effects of urban expansion are notable for various meteorological variables (nighttime/daytime temperatures, wind speed, specific humidity), sometimes beyond the urbanised grid points and stronger for extreme values. By comparing these results to observational data from weather stations, the added-value of the updated map is assessed. A contribution of urban expansion to the local warming trend is quantified over the period, responsible for up to 20 % of the total warming. In line with other studies, this paper argues for the consideration of urban dynamics in climate models by insisting on the benefits that a dynamic evolution of the LULC map would have, at least for urban areas, in CP-RCMs, whether it is for historical or future climate simulations.
Climate change · Climate model · Land cover · Land use · Urban climate · Urban heat island · Urbanization · Climate variability and models · Land Use and Ecosystem Services · Urban Heat Island Mitigation
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| Citation velocity | historical |
|---|---|
| Highly cited | No |