An examination of scale issues involved with remotely sensed data.

摘要

The effects of horizontal variability in remotely sensed surface radiometric temperature and fractional vegetation are examined, using data collected during the Southern Great Plains, 1997 Hydrology Experiment. The first chapter provides relevant background information and examines a few of the broad issues involved with the scale problem in land atmosphere interactions. The second chapter examines the variation in horizontal length scales determined using wavelet multi-resolution analysis. In addition, the co-variation between the length scales of radiometric temperature and vegetation, and the resultant estimations of surface energy fluxes are examined for various initial resolutions of remotely sensed data. The third chapter examines, in further detail, the self-similar nature observed with the satellite temperature and vegetation fields. Finally, the fourth chapter provides general conclusions on this research.