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Author (up) Vincent, G.; Sabatier, D.; Blanc, L.; Chave, J.; Weissenbacher, E.; Pélissier, R.; Fonty, E.; Molino, J.-F.; Couteron, P. url  openurl
  Title Accuracy of small footprint airborne LiDAR in its predictions of tropical moist forest stand structure Type Journal Article
  Year 2012 Publication Remote Sensing of Environment Abbreviated Journal Remote Sens. Environ.  
  Volume 125 Issue Pages 23-33  
  Keywords Basal area; Lidar; Tropical moist forest  
  Abstract We predict stand basal area (BA) from small footprint LiDAR data in 129 one-ha tropical forest plots across four sites in French Guiana and encompassing a great diversity of forest structures resulting from natural (soil and geological substrate) and anthropogenic effects (unlogged and logged forests). We use predictors extracted from the Canopy Height Model to compare models of varying complexity: single or multiple regressions and nested models that predict BA by independent estimates of stem density and quadratic mean diameter. Direct multiple regression was the most accurate, giving a 9.6% Root Mean Squared Error of Prediction (RMSEP). The magnitude of the various errors introduced during the data collection stage is evaluated and their contribution to MSEP is analyzed. It was found that these errors accounted for less than 10% of model MSEP, suggesting that there is considerable scope for model improvement. Although site-specific models showed lower MSEP than global models, stratification by site may not be the optimal solution. The key to future improvement would appear to lie in a stratification that captures variations in relations between LiDAR and forest structure. © 2012 Elsevier Inc.  
  Address ONF, Direction régionale de la Guyane, Cayenne, 97300 France  
  Corporate Author Thesis  
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  Series Volume Series Issue Edition  
  ISSN 00344257 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 9 August 2012; Source: Scopus; Article in Press; Coden: Rseea; doi: 10.1016/j.rse.2012.06.019; Language of Original Document: English; Correspondence Address: Vincent, G.; IRD AMAP CIRAD, TA A-51/PS2, 34398 Montpellier cedex 5, Franceemail: Approved no  
  Call Number EcoFoG @ webmaster @ Serial 418  
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