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Institut de recherche pour le développement (IRD)

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  • Guyadiv is a network of permanent forest plots installed in French Guiana. The site of Guyadiv in Counami is composed of 19 1200sq.m-plots. A complete inventory has been made on these plots, during 3 inventory sessions in 2000, 2001 and 2002. 1743 trees have been inventoried, with 92,2% to 100% of trees identified to species level. We only have the point coordinates and not the precise demarcation of the sample plots. In order to calculate the bounding box for these plots, we have expanded the point location 500 meters in each direction.

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    Emprises des acquisitions LIDAR effectuées par la société ALTOA dans le cadre du projet DYNFORDIV. Ce projet cherche à analyser les structure forestière de Guyane, il est porté par l'IRD en partenariat avec le Parc amazonien de Guyane, l'ONF, et l'AMAP. Ces emprises représentes 2 acquisitions: - La montagne Bellevue de l'Inini : 04/08/2014 - Western transect point density: all returns 17.05 last only 9.83 (per square units). Eastern transect point density: all returns 16.83 last only 10.28 (per square units). Lidar Riegl LMS Q560 onboard a plane operated by Altoa, swath angle +/-20deg - Le mont Itoupé : 07-08/08/2014 - (total covered area = 72 km²). Based on sample tiles (45, 70,192, 201, 256), the mean emitted pulse density is ~12/m², and the mean echo density ~ 19/m². Lidar Riegl LMS Q560 aboard a plane operated by Altoa