Cartografía De Susceptibilidad Y Estimación Del Máximo Alcance De Aludes en El Circo De Gredos (Sistema Central Ibérico)

García, Rodrigo; Gilsanz, Javier de Pedraza; González, Rosa María Carrasco

doi:10.18002/pol.v0i28.4296

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…There are some studies describing the behavior of the snowpack over different mountain ranges of Iberia. More specifically, most of these studies are focused on the Pyrenees and, to a lesser degree, in the Sierra Nevada (i.e., Herrero et al, 2011;López-Moreno et al, 2015;Quéno et al, 2016; with just some mention of other mountain ranges in Iberia where snow plays an important role (i.e., Palacios et al, 2003;Serrano Cañadas et al, 2016;Soteres García et al, 2016;.…”

Section: Introductionmentioning

confidence: 99%

El manto de nieve en la península ibérica: climatología y sensibilidad a la variabilidad climática

González¹

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Section: Introductionmentioning

confidence: 99%

El manto de nieve en la península ibérica: climatología y sensibilidad a la variabilidad climática

González¹

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Snow climatology for the mountains in the Iberian Peninsula using satellite imagery and simulations with dynamically downscaled reanalysis data

Alonso‐González

López‐Moreno

Navarro-Serrano

et al. 2019

Intl Journal of Climatology

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The presence of a seasonal snowpack determines the hydrology, geomorphology and ecology of wide parts of the Iberian Peninsula, with strong implications for the economy, transport and risk management. Thus, reliable information on snow is necessary from a scientific and operational point of view. This is the case of the Iberian Peninsula where, lack of observation has impeded proper analysis of snowpack duration, magnitude and interannual variability. In this study, we present the first snow climatology of the entire Iberian Peninsula. The scarcity of in situ observations has been overcome, using a newly developed remote sensing snow database from MODIS satellite sensors for the period 2000–2014 and a physically based snow model (Factorial Snow Model—FSM), driven by a regional atmospheric model (Weather Research and Forecast model—WRF) over the Iberian Peninsula for the period 1980–2014. The snowpack of the main mountain areas (Pyrenees, Cantabrian, Central, Iberian range and Sierra Nevada) are described, estimated from the generated databases. The information has been processed using a k‐means cluster algorithm, looking for similarities in snow indices at different elevation bands. Results show four different types of snowpack in terms of depth, duration and interannual variability, lying over different elevation bands in the different ranges, proving the variability of the snowpack over Iberia. Analyses reveal areas characterized by ephemeral snowpacks, while in some sectors snowpack lasts, on average, 198 days per year with 3.02 m of peak snow depth. The coefficient of variation of interannual peak snow depth oscillated between 35.2 and 162.4%. All the analysed indices show that at common elevations the Cantabrian range and the Pyrenees host the deepest and longest lasting snowpacks, followed by the Central and Iberian ranges. The Sierra Nevada exhibits the shortest, shallowest snowpack and more year‐to‐year variability.

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Snow avalanche susceptibility of the Circo de Gredos (Iberian Central System, Spain)

2020

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We present a detailed snow avalanche susceptibility map at scale 1:20,000 of the Circo de Gredos in the Sierra de Gredos (Iberian Central System, Spain). This cirque-shaped landscape is one of the most popular spots for winter sports in the region. However, no snow avalanche activity assessment has been conducted to date. We have, therefore, produced a snow avalanche susceptibility map based on aerial and satellite imagery, newspaper reviews and field work, including avalanche features recognition and interviews with frequent backcountry users. We extracted the spatial distribution of necessary and enhancer factors for triggering slab, wet and loose snow avalanches from a digital elevation model. Finally, calculations to evaluate each snow avalanche type susceptibility were performed using a Geographical Information System. By combining our map collection, we concluded that most of the area in the Circo de Gredos is highly susceptible to snow avalanches, especially slab and wet snow types.

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Cartografía De Susceptibilidad Y Estimación Del Máximo Alcance De Aludes en El Circo De Gredos (Sistema Central Ibérico)

Cited by 3 publications

References 12 publications

El manto de nieve en la península ibérica: climatología y sensibilidad a la variabilidad climática

El manto de nieve en la península ibérica: climatología y sensibilidad a la variabilidad climática

Snow climatology for the mountains in the Iberian Peninsula using satellite imagery and simulations with dynamically downscaled reanalysis data

Snow avalanche susceptibility of the Circo de Gredos (Iberian Central System, Spain)

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