Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24539
Title: Reconstructing complete MODIS LST based on temperature gradients in northeastern Qinghai-Tibet Plateau
Authors: Ke, L
Song, C
Ding, X 
Keywords: Image reconstruction
LST
MODIS
Qinghai-Tibet Plateau
Issue Date: 2012
Source: International Geoscience and Remote Sensing Symposium (IGARSS), 2012, 6350664, p. 3505-3508 How to cite?
Abstract: MODIS LST products provided by NASA may suffer from missing values and noises from various sources, which can degrade the LST quality and hamper its efficient applications. The paper presents an algorithm to reconstruct complete LST image based on regression analysis of LST with elevation in each sliding window, after filtering low-quality and unreliable pixels. Comparison of reconstructed LST with meteorological temperature measurements (T) indicates that LST is significantly correlated with T with an average correlation coefficient of 0.96 and a mean absolute difference (MAE) of 2.02 K. LSTs and Ts show no significant differences at monthly and yearly scale. The differences between LSTs and Ts have certain correlations with their different spatial and temporal definitions; however some residual noises existing in the reconstructed LSTs indicate more meticulous algorithm needed to work out more accurate RS-LST data.
Description: 2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012, Munich, 22-27 July 2012
URI: http://hdl.handle.net/10397/24539
DOI: 10.1109/IGARSS.2012.6350664
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