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56 years of solifluction measurements in the Abisko mountains, northern Sweden - analysis of temporal and spatial variations of slow soil surface movement

Ridefelt, Hanna; Åkerman, Jonas LU ; Beylich, Achim A.; Boelhouwers, Jan; Kolstrup, Else and Nyberg, Rolf (2009) In Geografiska Annaler. Series A. Physical Geography 91A(3). p.215-232
Abstract
Solifluction movement rates from 1952 to 2008 for the Abisko region, northern Sweden, have been compiled and analysed through correlation tests and multiple regression. The temporal analysis is based on two datasets (Lobe11 & gridAB and Line B) from Karkevagge. The dataset Lobe11 & gridAB show a strong correlation between movement rates and mean annual air temperature (MAAT) and MAAT is also identified as one of the significant contributing parameters in the multiple regression model. No significant correlations were found for the Line B dataset. The spatial analysis indicates generally higher movement rates in the western part of the region and at lower altitudes mainly between 700 and 900 m a.s.l., but the spatial variability is... (More)
Solifluction movement rates from 1952 to 2008 for the Abisko region, northern Sweden, have been compiled and analysed through correlation tests and multiple regression. The temporal analysis is based on two datasets (Lobe11 & gridAB and Line B) from Karkevagge. The dataset Lobe11 & gridAB show a strong correlation between movement rates and mean annual air temperature (MAAT) and MAAT is also identified as one of the significant contributing parameters in the multiple regression model. No significant correlations were found for the Line B dataset. The spatial analysis indicates generally higher movement rates in the western part of the region and at lower altitudes mainly between 700 and 900 m a.s.l., but the spatial variability is high. To reduce the influence of the temporal variation the data for the correlation tests of the spatial variations were divided into two parts: 1957 to 1980 and 1981 to 2008. The correlation analysis of the dataset 1957 to 1980 shows a significant negative correlation between annual average movement rates and permafrost probability and altitude. The dataset 1981 to 2008 shows a positive correlation between movement rates and wetness index. It is concluded that movement rates may increase with higher MAAT in the western part of the region (Karkevagge), the spatial variability of movement rates within the region is very high and that altitude (and/or permafrost) together with wetness index are the main controls on the regional spatial variation. The study highlights the limitations in establishing statistical relationships between movement rates and climate using data from different field empirical studies. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Abisko, long-term measurement, solifluction movement
in
Geografiska Annaler. Series A. Physical Geography
volume
91A
issue
3
pages
215 - 232
publisher
Wiley-Blackwell
external identifiers
  • wos:000269868300005
  • scopus:70349849412
ISSN
0435-3676
DOI
10.1111/j.1468-0459.2009.00365.x
language
English
LU publication?
yes
id
2844efe7-9ab2-4173-91d3-abc5865b5954 (old id 1492370)
date added to LUP
2009-10-16 16:41:56
date last changed
2017-01-01 05:08:13
@article{2844efe7-9ab2-4173-91d3-abc5865b5954,
  abstract     = {Solifluction movement rates from 1952 to 2008 for the Abisko region, northern Sweden, have been compiled and analysed through correlation tests and multiple regression. The temporal analysis is based on two datasets (Lobe11 & gridAB and Line B) from Karkevagge. The dataset Lobe11 & gridAB show a strong correlation between movement rates and mean annual air temperature (MAAT) and MAAT is also identified as one of the significant contributing parameters in the multiple regression model. No significant correlations were found for the Line B dataset. The spatial analysis indicates generally higher movement rates in the western part of the region and at lower altitudes mainly between 700 and 900 m a.s.l., but the spatial variability is high. To reduce the influence of the temporal variation the data for the correlation tests of the spatial variations were divided into two parts: 1957 to 1980 and 1981 to 2008. The correlation analysis of the dataset 1957 to 1980 shows a significant negative correlation between annual average movement rates and permafrost probability and altitude. The dataset 1981 to 2008 shows a positive correlation between movement rates and wetness index. It is concluded that movement rates may increase with higher MAAT in the western part of the region (Karkevagge), the spatial variability of movement rates within the region is very high and that altitude (and/or permafrost) together with wetness index are the main controls on the regional spatial variation. The study highlights the limitations in establishing statistical relationships between movement rates and climate using data from different field empirical studies.},
  author       = {Ridefelt, Hanna and Åkerman, Jonas and Beylich, Achim A. and Boelhouwers, Jan and Kolstrup, Else and Nyberg, Rolf},
  issn         = {0435-3676},
  keyword      = {Abisko,long-term measurement,solifluction movement},
  language     = {eng},
  number       = {3},
  pages        = {215--232},
  publisher    = {Wiley-Blackwell},
  series       = {Geografiska Annaler. Series A. Physical Geography},
  title        = {56 years of solifluction measurements in the Abisko mountains, northern Sweden - analysis of temporal and spatial variations of slow soil surface movement},
  url          = {http://dx.doi.org/10.1111/j.1468-0459.2009.00365.x},
  volume       = {91A},
  year         = {2009},
}