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Combined use of Multiple Linear Regression, Optimal Interpolation and GIS in producing temperature maps (CROSBI ID 514091)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Perčec Tadić, Melita ; Pandžić, Krešo Combined use of Multiple Linear Regression, Optimal Interpolation and GIS in producing temperature maps // Abstract book of the XXVII EGS General Assembly ; u: Geophysical Research Abstracts 4 (2002). European Geosciences Union (EGU), 2002. str. 05938-x

Podaci o odgovornosti

Perčec Tadić, Melita ; Pandžić, Krešo

engleski

Combined use of Multiple Linear Regression, Optimal Interpolation and GIS in producing temperature maps

In intention to produce climate maps of monthly and annual average air temperature for the CLINO period 1961-1990 the data from the meteorological stations are interpolated to regular grid. Combined use of multiple linear regression method and optimal interpolation was introduced. For every grid point, the temperature anomaly from the corresponding average is assumed in the form of linear combination of anomalies from the average on the meteorological stations. Weighting factors for every grid point are unique and calculated from the demand that the mean square difference between grid point temperature anomaly and suggested linear combination is minimal. An interpolation technique using these weighting factors is optimal interpolation and is formulated in details by L. S. Gandin. The obtained anomaly field is then added to average temperature field evaluated on regular grid using the regression equation to provide the final grided field. Multiple linear regression with measured temperature as predicted and stations altitude and geographic coordinates as predictors is used. Data for independent predictor variables are elaborated from 1 km resolution digital elevation model (DEM). GIS is used for calculation of average temperature field and for visualisation and producing final maps.

air temperature; multiple linear regression; optimal interpolation; GIS

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Podaci o prilogu

05938-x.

2002.

objavljeno

Podaci o matičnoj publikaciji

Abstract book of the XXVII EGS General Assembly ; u: Geophysical Research Abstracts 4 (2002)

European Geosciences Union (EGU)

Podaci o skupu

EGS General Assembly (27 ; 2002)

poster

21.04.2002-26.04.2002

Nica, Francuska

Povezanost rada

Geologija