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Modelling and Remote Sensing of Land Surface Temperature in Turkey |
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| Authors: | Mehmet ?ahin B Yi?it Y?ld?z Ozan ?enkal Vedat Pe?temalc? |
| Institution: | 1. Siirt Vocational School, Siirt University, 56100, Siirt, Turkey 2. Karaisal? Vocational School, ?ukurova University, 01770, Karaisal?, Adana, Turkey 3. Faculty of Education Department of Computer Education and Instructional Technology, ?ukurova University, 01330, Sar??am, Adana, Turkey 4. Physics Department, ?ukurova University, 01330, Sar??am, Adana, Turkey |
| Abstract: | This study introduces artificial neural networks (ANNs) for the estimation of land surface temperature (LST) using meteorological and geographical data in Turkey (26?C45°E and 36?C42°N). A generalized regression neural network (GRNN) was used in the network. In order to train the neural network, meteorological and geographical data for the period from January 2002 to December 2002 for 10 stations (Adana, Afyon, Ankara, Eski?ehir, ?stanbul, ?zmir, Konya, Malatya, Rize, Sivas) spread over Turkey were used as training (six stations) and testing (four stations) data. Latitude, longitude, elevation and mean air temperature are used in the input layer of the network. Land surface temperature is the output. However, land surface temperature has been estimated as monthly mean by using NOAA-AVHRR satellite data in the thermal range over 10 stations in Turkey. The RMSE between the estimated and ground values for monthly mean with ANN temperature(LSTANN) and Becker and Li temperature(LSTB-L) method values have been found as 0.077?K and 0.091?K (training stations), 0.045?K and 0.003?K (testing stations), respectively. |
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