Permafrost distribution modelling in the mountains of the Mediterranean: Corral del Veleta, Sierra Nevada, Spain

A statistical model for automated mapping of the spatial distribution of permafrost in the area of Corral del Veleta in south-east Spain (3703' N, 322' W; 3398 m a.s.l.) was developed and applied. The model uses a relationship between permafrost occurrence as indicated by BTS measurements, and variables such as altitude, solar radiation and summer snow cover. The model was implemented within a geographical information system (GIS) and determines the spatial distribution of probable permafrost in Corral del Veleta. Validation was achieved by comparing the predicted permafrost distribution with the results of recent fieldwork, such as geomorphic mapping, geophysical soundings and ground temperature logging.

[1]  A. G. Ortiz,et al.  Contribución al conocimiento de la deglaciación reciente y morfología asociada del Corral del Veleta (Sierra Nevada) , 1996 .

[2]  M. Hoelzle,et al.  A model of potential direct solar radiation for investigating occurrences of mountain permafrost , 1992 .

[3]  W. Haeberli,et al.  Construction, environmental problems and natural hazards in periglacial mountain belts , 1992 .

[4]  Ian D. Moore,et al.  Modelling environmental heterogeneity in forested landscapes , 1993 .

[5]  B. Etzelmüller,et al.  Topographic radiation balance models: Sensitivity and application in periglacial geomorphology , 2001 .

[6]  John P. Wilson,et al.  Terrain analysis : principles and applications , 2000 .

[7]  L. King,et al.  PERMAFROST DISTRIBUTION AND IMPLICATIONS FOR CONSTRUCTION IN THE ZERMATT AREA , SWISS ALPS , 2000 .

[8]  G. Patzelt,et al.  Permafrostkartierung im Gebiet der Hochebenkar-Blockgletscher, Obergurgl, Ötztaler Alpen , 1982 .

[9]  Miguel Ramos Sainz,et al.  Degradación de permafrost en Sierra Nevada y repercusiones geomorfológicas: el caso del Corral del Veleta. Resultados preliminares , 1999 .

[10]  Regula Frauenfelder,et al.  PERMAFROST INVESTIGATIONS WITH GIS Ð A CASE STUDY IN THE FLETSCHHORN AREA, WALLIS, SWISS ALPS , 1998 .

[11]  M. Hoelzle.  Mapping and modelling of mountain permafrost distribution in the Alps , 1996 .

[12]  Simulating the effects of mean annual air-temperature changes on permafrost distribution and glacier size: an example from the Upper Engadin, Swiss Alps , 1995 .

[13]  F. Keller,et al.  Automated mapping of mountain permafrost using the program PERMAKART within the geographical information system ARC/INFO , 1992 .

[14]  K. Isaksen,et al.  Comparison of BTS and Landsat TM data from Jotunheimen, southern Norway , 1999 .

[15]  John C. Gallant,et al.  TAPES-G: a grid-based terrain analysis program for the environmental sciences , 1996 .

[16]  H. Kienholz,et al.  Permafrost investigation in the Schilthorn Massif, Bernese Alps, Switzerland. , 2000 .

[17]  J. L. Sollid,et al.  THE DISTRIBUTION OF PERMAFROST IN SOUTHERN NORWAY - A GIS APPROACH , 1998 .

[18]  Martin Hoelzle,et al.  First results and interpretation of energy-flux measurements over Alpine permafrost , 2000, Annals of Glaciology.

[19]  M. Imhof,et al.  Modelling and verification of the permafrost distribution in the Bernese Alps (Western Switzerland) , 1996 .

[20]  M. Hoelzle,et al.  Permafrost mapping and prospecting in southern Norway , 1996 .

[21]  Martin Hoelzle,et al.  Permafrost occurrence from BTS measurements and climatic parameters in the eastern Swiss Alps , 1992 .

[22]  Distribution of Mountain Permafrost, Fontanesses Basin, Valaisian Alps, Switzerland , 1997 .

[23]  L. King,et al.  Prospecting and mapping of mountain permafrost and associated phenomena , 1992 .

[24]  Miguel Ramos,et al.  Location of permafrost in marginal regions: Corral del Veleta, Sierra Nevada, Spain , 2001 .

[25]  Bernd Etzelmüller,et al.  Terrain parameters and remote sensing data in the analysis of permafrost distribution and periglacial processes: principles and examples from southern Norway , 2001 .

[26]  W. Haeberli.  Die Basis-Temperatur der winterlichen Schneedecke als moglicher Indikator fur die Verbreitung von Permafrost in den Alpen , 1973 .

[27]  Bernd Etzelmüller,et al.  Surface energy fluxes and distribution models of permafrost in European mountain areas: an overview of current developments , 2001 .

[28]  Stephan Gruber,et al.  Statistical modelling of mountain permafrost distribution: local calibration and incorporation of remotely sensed data , 2001 .