Modelling local-scale frost variations using mobile temperature measurements with a GIS

Modelling local-scale frost variations using mobile temperature measurements with a GIS A stepwise linear regression model for local-scale temperature climates for clear and calm summer nights is presented for a heterogeneous and forested area in south Sweden. The spatial variations in measured air temperature 2 m above 5.5 km of roads were modelled from the following independent variables retrieved from a geographic information system (GIS): sky view factor, altitude, relative relief and presence of peat soils. The model explains 88% of the measured variations in air temperature and 87% of the variations in air temperature of a separate validation data set collected along 2.4 km of roads. Distributed model results for a 7.5-km 2 area generates a map with areas delineated that are prone to low temperature and frost after clear-cutting. The map gives useful information for efficient implementation of frost protection measures in forestry and is based on a simple methodology that can be applied in practical forestry. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Agricultural and Forest Meteorology Elsevier

Modelling local-scale frost variations using mobile temperature measurements with a GIS

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Publisher
Elsevier
Copyright
Copyright © 1998 Elsevier Ltd
ISSN
0168-1923
DOI
10.1016/S0168-1923(97)00057-9
Publisher site
See Article on Publisher Site

Abstract

A stepwise linear regression model for local-scale temperature climates for clear and calm summer nights is presented for a heterogeneous and forested area in south Sweden. The spatial variations in measured air temperature 2 m above 5.5 km of roads were modelled from the following independent variables retrieved from a geographic information system (GIS): sky view factor, altitude, relative relief and presence of peat soils. The model explains 88% of the measured variations in air temperature and 87% of the variations in air temperature of a separate validation data set collected along 2.4 km of roads. Distributed model results for a 7.5-km 2 area generates a map with areas delineated that are prone to low temperature and frost after clear-cutting. The map gives useful information for efficient implementation of frost protection measures in forestry and is based on a simple methodology that can be applied in practical forestry.

Journal

Agricultural and Forest MeteorologyElsevier

Published: Jan 1, 1998

References

  • Frost in July in a coastal area of southern Sweden
    Blennow, K.
  • Nocturnal air and road surface temperature variations in complex terrain
    Bogren, J.; Gustavsson, T.
  • The Climate Near the Ground
    Geiger, R.
  • Analyses of local climatological factors controlling risk of road slipperiness during warm-air advections
    Gustavsson, T.
  • Radiation frost susceptibility and the association between sky exposure and leaf size
    Jordan, D.N.; Smith, W.K.
  • Differential nocturnal cooling in the landscape detected by mobile measurements
    Persson, P.

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