Backscattering from rough interfaces and the parabolic approximation

1992 ◽  
Vol 91 (1) ◽  
pp. 99-106 ◽  
Author(s):  
Suzanne T. McDaniel
Atmosphere ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 12
Author(s):  
Yulia Ivanova ◽  
Anton Kovalev ◽  
Vlad Soukhovolsky

The paper considers a new approach to modeling the relationship between the increase in woody phytomass in the pine forest and satellite-derived Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) (MODIS/AQUA) data. The developed model combines the phenological and forest growth processes. For the analysis, NDVI and LST (MODIS) satellite data were used together with the measurements of tree-ring widths (TRW). NDVI data contain features of each growing season. The models include parameters of parabolic approximation of NDVI and LST time series transformed using principal component analysis. The study shows that the current rate of TRW is determined by the total values of principal components of the satellite indices over the season and the rate of tree increment in the preceding year.


2011 ◽  
Vol 109 (7) ◽  
pp. 07C118 ◽  
Author(s):  
A. N. Pogorily ◽  
G. V. Bondarkova ◽  
O. N. Razumov ◽  
E. V. Shypil

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