Permafrost distribution in steep slopes in Norway ...

• Main Author: Department Of Geosciences, University Of Oslo
• Format: Dataset
• Language: unknown
• Published: Archive2014 2019
• Subjects: Natural sciences; FOS Natural sciences; Earth science; Environmental science; Norway; permafrost
• Online Access: https://dx.doi.org/10.11582/2019.00026; https://archive.sigma2.no/pages/public/datasetDetail.jsf?id=10.11582/2019.00026

Permafrost in steep slopes has been increasingly studied since the early 2000s in conjunction with a growing number of rock-slope failures, which likely resulted from permafrost degradation. In Norway, rock-slope destabilization is a widespread phenomenon and a major source of risk for the population and infrastructure. However, the lack of precise understanding of the permafrost distribution in steep slopes hinders the assessment of its role in these destabilizations. This study proposes the first nation-wide permafrost probability map for the steep slopes of Norway (CryoWall map). It is based on a multiple linear regression model fitted with multi-annual rock surface temperature (RST) measurements, collected at 25 rock-wall sites, spread across a latitudinal transect (59–69° N) over mainland Norway. The CryoWall map suggests that discontinuous permafrost widely occurs above 1300–1400 and 1600–1700 m a.s.l. in the north and south slopes of southern Norway (59° N), respectively. This lower altitudinal limit ... : 2 application/xml, totaling ...... 5.12 KB 1 ESRI Shapefile version -31784704 length 6430, totaling ...... 12.56 KB 1 ESRI Shapefile version 1000 length 888838 type Polygon, totaling ...... 1.7 MB 2 application/octet-stream, totaling ...... 61.97 GB 1 ESRI Shapefile version 1000 length 9325522 type Polygon, totaling ...... 17.79 MB 1 ESRI Shapefile version 87293952 length 994, totaling ...... 1.94 KB 1 FoxBase+/dBase III DBF, 222197 records * 69, update-date 118-12-3, at offset 193 1st record " 1 1 1 1.87433137907e+002 2.12255172718e+003 2 2 ", totaling ...... 14.62 MB 24 ASCII text, with no line terminators, totaling ...... 687 B 1 FoxBase+/dBase III DBF, 13317 records * 69, update-date 118-12-3, at offset 193 1st record " 1 1 1 1.02575785470e+002 4.16490173353e+002 2 2 ", totaling ...... 897.53 KB 1 ESRI Shapefile version -31784704 length 362710, totaling ...... 708.42 KB 3 ASCII text, with very long lines, with no line terminators, totaling ...... 1.17 KB 1 ESRI Shapefile version 1000 length 290858 type ...