Title
Clear sky Net Surface Radiative Fluxes over rugged terrain from satellite measurements
Abstract
Net Surface Radiative Flux is the key parameter for global change studies. In this study, two models designed to directly estimate net surface radiative fluxes over horizontal surfaces are developed based on artificial neural network (ANN).These models not only avoid the error propagation involved in the existing algorithms, but also provide the necessary data for estimating fluxes over rugged terrain. The validation results show that the maximum root mean square error (RMSE) of the ANN models is less than 45W/m2 and 25 W/m2 for net shortwave and longwave fluxes, respectively. By coupling the outputs of ANN models, the shortwave and longwave topographic radiative models are subsequently proposed to derive the net surface fluxes over rugged terrain. The results indicate that great errors can be detected if the topographic effect is ignored over rugged area, especially for net shortwave radiative fluxes.
Year
DOI
Venue
2011
10.1109/IGARSS.2011.6050173
IGARSS
Keywords
Field
DocType
topographic effect,error propagation,satellite measurements,atmospheric techniques,artificial neuron network,modis,rugged terrain,net shortwave radiative fluxes,net surface radiative flux,topography (earth),net longwave radiative fluxes,horizontal surfaces,shortwave topographic radiative model,atmospheric boundary layer,tibetan plateau,clear sky net surface radiative fluxes,longwave topographic radiative model,artificial neural network models,neural nets,atmospheric radiation,maximum root mean square error,neuronal network,mathematical model,surface topography,data model,global change,root mean square error,artificial neural network,artificial neural networks,remote sensing,data models
Satellite,Propagation of uncertainty,Computer science,Remote sensing,Shortwave,Terrain,Atmospheric sciences,Radiative flux,Longwave,Radiative transfer,Planetary boundary layer
Conference
Volume
Issue
ISSN
null
null
2153-6996
ISBN
Citations 
PageRank 
978-1-4577-1003-2
0
0.34
References 
Authors
2
4
Name
Order
Citations
PageRank
Tianxing Wang12014.16
Guangjian Yan214038.69
Xihan Mu3248.90
Ling Chen453.99