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2025

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Comparison Of In Situ Plant Area Index And Remotely Sensed Leaf Area Index Of Northeastern American Deciduous, Mixed, And Coniferous Forests For Smapvex19-22, Christopher Cook, Laura Bourgeau-Chavez, Dorthea Vander Bilt, Mary E. Miller, Simon Kraatz, Michael H. Cosh, Victoria R. Kelly, Andreas Colliander Jan 2025

Comparison Of In Situ Plant Area Index And Remotely Sensed Leaf Area Index Of Northeastern American Deciduous, Mixed, And Coniferous Forests For Smapvex19-22, Christopher Cook, Laura Bourgeau-Chavez, Dorthea Vander Bilt, Mary E. Miller, Simon Kraatz, Michael H. Cosh, Victoria R. Kelly, Andreas Colliander

Michigan Tech Publications

Leaf Area Index (LAI) and Plant Area Index (PAI) are critical biophysical parameters for quantifying foliage density of crops and trees. As such they may also be effective metrics to estimate the impact of leafy vegetation on microwave signals, like the radiometer on board NASA’s Soil Moisture Active Passive (SMAP) satellite. This study presents a comprehensive analysis of PAI and LAI measurements acquired through in situ and remotely sensed (RS) methods in diverse forest ecosystems of northeastern America, including deciduous, mixed, and coniferous forests. We compare RS LAI and ground-truth PAI data to understand the variation between the RS LAI …