Estimating Canopy Gap Fraction Using ICESat GLAS within Australian Forest Ecosystems
نویسندگان
چکیده
منابع مشابه
Estimating Canopy Gap Fraction Using ICESat GLAS within Australian Forest Ecosystems
Spaceborne laser altimetry waveform estimates of canopy Gap Fraction (GF) vary with respect to discrete return airborne equivalents due to their greater sensitivity to reflectance differences between canopy and ground surfaces resulting from differences in footprint size, energy thresholding, noise characteristics and sampling geometry. Applying scaling factors to either the ground or canopy po...
متن کاملCharacterization of canopy fuels using ICESat/GLAS data
a COMPLUTIG-UAH, Department of Geography, University of Alcalá, C/ Colegios, 2, Alcalá de Henares, 28801, Madrid, Spain b Spatial Sciences Laboratory, Department of Ecosystem Science and Management, Texas A&M University, 1500 Research Parkway, Suite B 223, TAMU 2120, College Station, TX 77845, United States c Institute of Economics and Geography, Spanish National Research Council (CSIC), Albasa...
متن کاملCanopy Height Estimation in French Guiana with LiDAR ICESat/GLAS Data Using Principal Component Analysis and Random Forest Regressions
Estimating forest canopy height from large-footprint satellite LiDAR waveforms is challenging given the complex interaction between LiDAR waveforms, terrain, and vegetation, especially in dense tropical and equatorial forests. In this study, canopy height in French Guiana was estimated using multiple linear regression models and the Random Forest technique (RF). This analysis was either based o...
متن کاملEstimates of forest canopy height and aboveground biomass using ICESat
[1] Exchange of carbon between forests and the atmosphere is a vital component of the global carbon cycle. Satellite laser altimetry has a unique capability for estimating forest canopy height, which has a direct and increasingly well understood relationship to aboveground carbon storage. While the Geoscience Laser Altimeter System (GLAS) onboard the Ice, Cloud and land Elevation Satellite (ICE...
متن کاملImproved algorithm for estimating canopy indices from gap fraction data in forest canopies
An algorithm has been proposed to estimate the leaf area index (LAI) and canopy closure of forest canopies from the distribution of gap fraction measured by an LAI-2000 plant canopy analyser by inverting a forest gap fraction theoretical formula. The algorithm is based on the idea that the canopy closure is estimated from the reading of canopy analyser in the near-zenith ring. However, the meas...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Remote Sensing
سال: 2017
ISSN: 2072-4292
DOI: 10.3390/rs9010059