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Transcript of Friedrich- Jena ^ r } v Z K À } v ] v v ] v À ] } v u v d...
Friedrich-Schiller-Universität
Jena
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Area ln
Mas
s ln
1. Problem statement#Arid environments cover extensive areas # Remote sensing important tool# # Low signal compared to background (soil)#
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Satellite illustration: NASA 2013
2. Methods
circle area cm²
mass g
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Allometric modelR² = 0.87p < 0.001
Field measurements
Logarithmic linear Regression
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Landsat - s rub spectral angle 0. 55-2.2 μmRapidEye - MCARI MT I2
RapidEye - rub spectral angle 0. 57-0.805 μmRapidEye - color usted NDRE
RapidEye - color usted red edge WD IRapidEye - Ra o Principal Component and 2
ASTER - cosine o slope aspectLandsat - principal component 1
RapidEye - color usted WD I REIRapidEye - color usted red edge WD I REI
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sensors
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Harald Zandlera*, Alexander Brenningbc & Cyrus Samimiad
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RapidEye
ASTER DEM
#Texture variables#
#Spectral angle variables#Principal components
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Allometric model+
+ 60 m
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regression models
squares, lasso, ridge)#
with satellite data
lowest stepwise linear regression
highest lasso regression
increased
based
variable importance#Common
indices not listed
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