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Dr. Álvaro Ayala

Correo Electrónico: alvaro.ayala@ceaza.cl
 
Línea de investigación: Hidrología de nieve y glaciares
 
Fono: 51 2 2014378
 
Dirección (oficina): Raúl Bitrán 1305, Campus Andrés Bello, Universidad de La Serena, La Serena, Región de Coquimbo, Chile.
 
Descripción de investigación: Me interesa cuantificar la contribución hídrica de la nieve y los glaciares de montaña, y entender sus variaciones a distintas escalas espaciales (de cuencas a regiones) y temporales (de horas a décadas). Para esto, combino datos de terreno, productos satelitales y modelos meteorológicos para realizar simulaciones computacionales de la dinámica nival y el balance de masa glaciar.
   
Proyectos Publicaciones
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Proyectos:

  • Understanding the role of snow in runoff generation and glacier mass balance in dry mountain regions, FONDECYT Postdosctorado 3190732
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Publicaciones:

  • Shaw, T. E., Yang, W., Ayala, Á., Bravo, C., Zhao, C., and Pellicciotti, F. (2021). Distributed summer air temperatures across mountain glaciers in the south-east Tibetan Plateau: temperature sensitivity and comparison with existing glacier datasets, The Cryosphere, 15, 595–614, https://doi.org/10.5194/tc-15-595-2021
  • Ayala, A., Farías-Barahona, D., Huss, M., Pellicciotti, F., McPhee, J., and Farinotti, D.,(2020). Glacier runoff variations since 1955 in the Maipo River basin, in the semiarid Andes of central Chile. The Cryosphere. 14, 2005–2027. https://doi.org/10.5194/tc-14-2005-2020
  • Farías-Barahona, D., Wilson, R., Bravo, C., Vivero, S., Caro, A., Shaw, T.E., Casassa, G., Ayala, A., Mejías, A., Harrison, S., Glasser, N.F., McPhee, J., Wündrich, O., and Braun, M.H. (2020). A near 90-year record of the evolution of El Morado Glacier and its proglacial lake, Central Chilean Andes. Journal of Glaciology. Volume 66, Issue 259. https://doi.org/10.1017/jog.2020.52
  • Shaw, T.E., Caro, A., Mendoza, P., Ayala, A., Pellicciotti, F., Gascoin, S., McPhee, J. (2020). The Utility of Optical Satellite Winter Snow Depths for Initializing a Glacio‐Hydrological Model of a High‐Elevation, Andean Catchment. Water Resources Research. Volume56, Issue 8. https://doi.org/10.1029/2020WR027188
  • Troxler, P., Ayala, A., Shaw, T.E., Nolan, M., Brock, B.W., Pellicciotti, F. (2020). Modelling spatial patterns of near-surface air temperature over a decade of melt seasons on McCall Glacier, Alaska. Journal of Glaciology. Volume 66, Issue 257. https://doi.org/10.1017/jog.2020.12
  • Burger, F., Ayala, A., Farias, D., Shaw, T., MacDonell, S., & Brock, B., McPhee, J., Pellicciotti, F. (2018). Interannual variability in glacier contribution to runoff from a high-elevation Andean catchment: understanding the role of debris cover in glacier hydrology. Hydrological Processes, 33(2), 214-229. doi: 10.1002/hyp.13354
  • Ayala, Á., F. Pellicciotti, N. Peleg, and P. Burlando (2017), Melt and surface sublimation across a glacier in a dry environment: distributed energy-balance modelling of Juncal Norte Glacier, Chile, J. Glaciol., 63(241), 803–822, doi:10.1017/jog.2017.46.
  • Ayala, A., Pellicciotti, F., MacDonell, S., McPhee, J., Burlando, P. (2017), Patterns of glacier ablation across North-Central Chile: Identifying the limits of empirical melt models under sublimation-favorable conditions, Water Resour. Res., 53(7), 5601–5625, doi:10.1002/2016WR020126.
  • Ayala, A., Pellicciotti, F., MacDonell, S., McPhee, J., Vivero, S., Campos, C., Egli, P. (2016), Modelling the hydrological response of debris-free and debris-covered glaciers to present climatic conditions in the semiarid Andes of central Chile, Hydrol. Process., 30, 4036–4058, doi:10.1002/hyp.10971.
  • Ayala, A., Pellicciotti, F., Shea, J. M. (2015), Modeling 2 m air temperatures over mountain glaciers: Exploring the influence of katabatic cooling and external warming, J. Geophys. Res. Atmos., 120, 1–17, doi:10.1002/2013JD021272.