RT Journal Article
T1 Daily concentration of snowfalls in the mountains of the Iberian Peninsula
A1 Lemus Canovas, Marc
A1 Alonso González, Esteban
A1 Bonsoms, Josep
A1 López Moreno, Juan Ignacio
K1 Concentration index
K1 Iberian Peninsula
K1 Low-frequency climate modes
K1 Snowfall
K1 Synoptic patterns
AB The temporal concentration of snowfalls has direct implications on the management of water resources as well as on the economic activity of mountain areas, conditioning, for example, the seasonal performance of ski resorts. This work uses the daily concentration index (CI) for analysing the frequency concentration of snowfalls in the Iberian Peninsula Mountain ranges. First, we provide a spatiotemporal analysis of the CI patterns and trends for the1980–2014 period. Subsequently, we determine the atmospheric circulation patterns that control the CI variability. In addition, we determine the geographical and low-frequency climate modes that control the CI for this mid-latitude area. In addition, we have estimated the partial dependence relationship between the CI and several geographical factors by fitting a multiple linear regression. The results from these analyses show that elevation as well as the distance from the Atlantic are the main geographical pattern that controls the CI in the Iberian Peninsula Mountain ranges. These geographical factors also reflect the role of the main atmospheric circulation patterns in the Iberian Peninsula in controlling the spatial dynamics of the CI. The Cantab rian, Iberian, and northern slopes of the Pyrenees show the lowest CI due to their exposition to northern and Atlantic circulation weather types. On the contrary, the highest CI values are found in the southern and eastern slopes of the Pyrenees, eastern slopes of Sierra Nevada, and southern slopes of the Central system. Trend analysis shows a slight increase of CI in the Central system and in the western Sierra Nevada. However, eastern Sierra Nevada, Cantabrian, Central, and Iberian show a downward CI trend. CI is principally driven by the East-Atlantic/Western Russia pattern and the North Atlantic Oscillation(NAO) in the Cantabrian, Iberian, and northern slopes of the Central range. The CI values in the Pyrenees show a different relationship with the Western Mediterranean Oscillation (WeMO) depending on whether it is the southern or the northern slope. In addition, the positive phase of the NAO oscillation controls the higher values of CI for the whole Pyrenees, especially in the mid-south part. Finally, in Sierra Nevada the CI dynamics are controlled mostly by the WeMO
PB Wiley
SN 0899-8418
YR 2023
FD 2023
LK http://hdl.handle.net/10347/33627
UL http://hdl.handle.net/10347/33627
LA eng
NO Lemus-Canovas, M., Alonso-Gonz alez, E., Bonsoms, J., & Lopez-Moreno, J. I. (2024). Daily concentration of   snowfalls in the mountains of the Iberian Peninsula. International Journal of Climatology, 44(2), 485–500. https://doi.org/10.1002/joc.833
NO This work frames within the research topics examined by the research group, MARGISNOW (PID2021-124220OB-100) funded by the Spanish Ministry of Science and Innovation. M.L.-C. is supported by a postdoctoral contractfrom the programme named “Programa de axudas de apoio á etapa inicial de formacion posdoutoral (2022)”founded by Xunta de Galicia (Government of Galicia, Spain). Reference number: ED481B-2022-055. J.B. is supported by a pre-doctoral University Professor FPI grant (PRE2021-097046) funded by the Spanish Ministry of Science, Innovation and Universities
DS Minerva
RD 24 abr 2026