Estimation of daily mean air temperature from MODIS LST in Alpine areas Export

@inproceedings{Colombi2007_modis_lst_air, abstract = {This study is aimed at demonstrating the feasibility of the MODIS Land Surface Temperature (LST) product as a source for calculating spatially distributed daily mean air temperature to be used as input for hydrological or environmental models. The test area is located in the Italian Alpine area.The proposed procedure solves, by empirical approaches, the problem of relating LST to the Air Temperature (T\_air ) and instantaneous T\_air values to daily mean values, exploiting ground data weather station measurements as a reference. The relationship between LST and T\_air is determined by correlation analysis and equation generalisation for spatial distribution. The extrapolation of daily mean values of T\_air from instantaneous values is addressed again by correlation analyses taking into account the altitude variability and exploiting historical series. Validation was accomplished by accuracy assessment procedures both punctual and spatially distributed, the latter performed by comparison with the Inverse Distance Weighting (IDW) interpolation method.The proposed methodology produced satisfactory results as related to the objective: The daily mean air temperatures derived by LST showing an overall RMSE of 1.89°C, and slightly outperforms the interpolation method used as comparison.}, author = {Colombi, A. and De Michele, C. and Pepe, M. and Rampini, A.}, citeulike-article-id = {4053004}, citeulike-linkout-0 = {http://www.eproceedings.org/static/vol06_1/06_1_colombi1.html}, journal = {EARSeL eProceedings}, keywords = {air, gis, lst, modis, remote-sensing, satellite, temperature}, number = {1}, pages = {38--46}, posted-at = {2009-02-15 09:24:15}, priority = {2}, title = {Estimation of daily mean air temperature from MODIS LST in Alpine areas}, url = {http://www.eproceedings.org/static/vol06_1/06_1_colombi1.html}, volume = {6}, year = {2007} }

TY - CONF ID - Colombi2007_modis_lst_air L3 - citeulike-article-id:4053004 N2 - This study is aimed at demonstrating the feasibility of the MODIS Land Surface Temperature (LST) product as a source for calculating spatially distributed daily mean air temperature to be used as input for hydrological or environmental models. The test area is located in the Italian Alpine area.The proposed procedure solves, by empirical approaches, the problem of relating LST to the Air Temperature (T_air ) and instantaneous T_air values to daily mean values, exploiting ground data weather station measurements as a reference. The relationship between LST and T_air is determined by correlation analysis and equation generalisation for spatial distribution. The extrapolation of daily mean values of T_air from instantaneous values is addressed again by correlation analyses taking into account the altitude variability and exploiting historical series. Validation was accomplished by accuracy assessment procedures both punctual and spatially distributed, the latter performed by comparison with the Inverse Distance Weighting (IDW) interpolation method.The proposed methodology produced satisfactory results as related to the objective: The daily mean air temperatures derived by LST showing an overall RMSE of 1.89°C, and slightly outperforms the interpolation method used as comparison. IS - 1 JF - EARSeL eProceedings EP - 46 TI - Estimation of daily mean air temperature from MODIS LST in Alpine areas VL - 6 SP - 38 KW - air KW - gis KW - lst KW - modis KW - remote-sensing KW - satellite KW - temperature AU - Colombi, A AU - De Michele, C AU - Pepe, M AU - Rampini, A PY - 2007/// UR - http://www.eproceedings.org/static/vol06_1/06_1_colombi1.html ER -