Articles | Volume 4, issue 3
https://doi.org/10.5194/wcd-4-725-2023
https://doi.org/10.5194/wcd-4-725-2023
Research article
 | 
31 Aug 2023
Research article |  | 31 Aug 2023

Adverse impact of terrain steepness on thermally driven initiation of orographic convection

Matthias Göbel, Stefano Serafin, and Mathias W. Rotach

Related authors

Numerically consistent budgets of potential temperature, momentum, and moisture in Cartesian coordinates: application to the WRF model
Matthias Göbel, Stefano Serafin, and Mathias W. Rotach
Geosci. Model Dev., 15, 669–681, https://doi.org/10.5194/gmd-15-669-2022,https://doi.org/10.5194/gmd-15-669-2022, 2022
Short summary

Related subject area

Boundary-layer dynamics incl. coupling to land, ocean and ice
Exploring the daytime boundary layer evolution based on Doppler spectrum width from multiple coplanar wind lidars during CROSSINN
Nevio Babić, Bianca Adler, Alexander Gohm, Manuela Lehner, and Norbert Kalthoff
Weather Clim. Dynam., 5, 609–631, https://doi.org/10.5194/wcd-5-609-2024,https://doi.org/10.5194/wcd-5-609-2024, 2024
Short summary
Forcing for varying boundary layer stability across Antarctica
Mckenzie J. Dice, John J. Cassano, and Gina C. Jozef
Weather Clim. Dynam., 5, 369–394, https://doi.org/10.5194/wcd-5-369-2024,https://doi.org/10.5194/wcd-5-369-2024, 2024
Short summary
Variations in boundary layer stability across Antarctica: a comparison between coastal and interior sites
Mckenzie J. Dice, John J. Cassano, Gina C. Jozef, and Mark Seefeldt
Weather Clim. Dynam., 4, 1045–1069, https://doi.org/10.5194/wcd-4-1045-2023,https://doi.org/10.5194/wcd-4-1045-2023, 2023
Short summary
Effects on early monsoon rainfall in West Africa due to recent deforestation in a convection-permitting ensemble
Julia Crook, Cornelia Klein, Sonja Folwell, Christopher M. Taylor, Douglas J. Parker, Adama Bamba, and Kouakou Kouadio
Weather Clim. Dynam., 4, 229–248, https://doi.org/10.5194/wcd-4-229-2023,https://doi.org/10.5194/wcd-4-229-2023, 2023
Short summary
Vortex streets to the lee of Madeira in a kilometre-resolution regional climate model
Qinggang Gao, Christian Zeman, Jesus Vergara-Temprado, Daniela C. A. Lima, Peter Molnar, and Christoph Schär
Weather Clim. Dynam., 4, 189–211, https://doi.org/10.5194/wcd-4-189-2023,https://doi.org/10.5194/wcd-4-189-2023, 2023
Short summary

Cited articles

Baek, S.: A Revised Radiation Package of G-packed McICA and Two-Stream Approximation: Performance Evaluation in a Global Weather Forecasting Model, J. Adv. Model Earth Syst., 9, 1628–1640, https://doi.org/10.1002/2017MS000994, 2017. a
Banacos, P. C. and Ekster, M. L.: The Association of the Elevated Mixed Layer with Significant Severe Weather Events in the Northeastern United States, Weather Forecast., 25, 1082–1102, https://doi.org/10.1175/2010WAF2222363.1, 2010. a
Banta, R. M.: The Role of Mountain Flows in Making Clouds, in: Atmospheric Processes over Complex Terrain, Springer, 229–283, https://doi.org/10.1007/978-1-935704-25-6_9, 1990. a, b
Bechis, H., Galligani, V., Alvarez Imaz, M., Cancelada, M., Simone, I., Piscitelli, F., Maldonado, P., Salio, P., and Nesbitt, S. W.: A Case Study of a Severe Hailstorm in Mendoza, Argentina, during the RELAMPAGO-CACTI Field Campaign, Atmos. Res., 271, 106127, https://doi.org/10.1016/j.atmosres.2022.106127, 2022. a
Chen, F. and Dudhia, J.: Coupling an Advanced Land Surface–Hydrology Model with the Penn State–NCAR MM5 Modeling System. Part I: Model Implementation and Sensitivity, Mon. Weather Rev., 129, 569–585, https://doi.org/10.1175/1520-0493(2001)129<0569:CAALSH>2.0.CO;2, 2001. a
Download
Short summary
On summer days over mountains, upslope winds transport moist air towards mountain tops and beyond, making local rain showers more likely. We use idealized simulations to investigate how mountain steepness affects this mechanism. We find that steeper mountains lead to a delayed onset and lower intensity of the storms, because less moisture accumulates over the ridges and the thermal updraft zone at the top is narrower and thus more prone to the intrusion of dry air from the environment.