Validation of Leaf Area Index (LAI) derived from moderate resolution remote sensing observations generally involves optical technique to measure ground LAI. As the current validation datasets are derived using multiple optical retrieval techniques, assessment of the consistency between these techniques is required. In this study the effective Plant Area Index (PAIeff) retrievals by three major ...

Validation of Leaf Area Index (LAI) derived from moderate resolution remote sensing observations generally involves optical technique to measure ground LAI. As the current validation datasets are derived using multiple optical retrieval techniques, assessment of the consistency between these techniques is required. In this study the effective Plant Area Index (PAIeff) retrievals by three major ...

Lodging is one of the main problems in maize production. Assessing self-recovery ability plants after lodging at different growth stages great significance for yield loss assessment and agricultural insurance claims. The objective this study was to quantitatively analyse effects severity on using UAV-LiDAR data. multi-temporal point cloud data obtained by RIEGL VUX-1 laser scanner were used con...

During the last decade, there have been numerous scientific studies verifying the accuracy of digital elevation models (DEM) derived from airborne laser scanning (ALS). Since ALS has increasingly been used for nationwide digital elevation model data acquisition, optimizing ALS acquisition parameters is a topic of interest to national land surveys. In particular, the effect of the scanning angle...

Forest leaf area index (LAI) is a key characteristic affecting a field canopy microclimate. In addition to traditional professional measuring instruments, smartphone-based methods have been used to measure forest LAI. However, when smartphone methods were used to measure conifer forest LAI, very different performances were obtained depending on whether the smartphone was held at the zenith angl...

Citation Nepf, H. et al. " Retention time and dispersion associated with submerged aquatic canopies. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. [1] The shear ...

In order to investigate the dynamics and vortex shedding of flexible supersonic canopies, a compressible permeability model combined with fabric structure parameters is proposed, periodic oscillation parachute which referred as breathing phenomenon simulated based on Arbitrary Langrangian Eulerian (ALE) method. The calculated results by new are consistent experimental results. underlying mechan...