elevation
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The aerial laser scanning (ALS) dataset, acquired in 2004, covers three plots of Counami site in French Guiana. The laser recorded last reflected pulse. Ground points data where not delivered by ALTOA.
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The aerial laser scanning (ALS) dataset, acquired in October 2004, covers five plots of Crique Plomb and Montagne Plomb area in French Guiana. In this area. the forest presents contrasting and diversified characteristics : high forest, forest grown on ferricrust, and superficial saprolit with high density of stem per hectare. Ground echoes are available as well as a digital terrain model (DTM), a digital surface model (DSM), and a digital canopy model (DCM) with a 1 meter resolution.
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The aerial laser scanning (ALS) dataset, acquired in 2007, covers the research area in the Nouragues reserve. Ground echoes are available as well as a digital terrain model (DTM), a digital surface model (DSM), and a digital canopy model (DCM) with a 1 meter resolution.
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Aerial laser scanning (ALS) dataset, Montagne Trinité, French Guiana, acquired on 24 September 2014.
The aerial laser scanning (ALS) dataset acquired on 24 September 2014 covers eastern and western side of Montagne Trinité. Data acquired in the framework of DynForDiv project. Z1 ( East side of the montain); point density: all returns 17.83 last only 10.62 (per meter square) Z2 ( West part of the moutain); point density: all returns 18.97 last only 10.61 (per meter square)
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The aerial laser scanning (ALS) dataset acquired on 24 September 2014 covers three ares of Montagne Plomb. Z1 (North Eastern part, north of crique Plomb); point density: all returns 19.30 last only 10.62 (per meter square) Z2 (central part, Eastern part of the mountain); point density: all returns 16.80 last only 10.16 (per meter square) Z3 (most western part, western side of the mountain) ; point density: all returns 17.08 last only 10.48 (per square units) Lidar Riegl LMS Q560 onboard a plane operated by Altoa, swath angle +/-20deg
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The aerial laser scanning (ALS) dataset was acquired on 7 and 8 August 2014 in the framework of DynForDiv project. It covers mount Itoupé (altitude 830m above sea level) in French Guiana (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
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High density (20 pt/m2) aerial laser scanning (LIDAR) dataset acquired in march 2012. Covers 24 km2 including the research station in the Nouragues reserve.
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The aerial laser scanning (ALS) dataset acquired on 20 October 2015 covers the experimental station Paracou in French Guiana. The coverage includes all Guyafor and Guyaflux plots completely with logged-over, unlogged and swamp forest ("Pinot" or "Açai").
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The aerial laser scanning (ALS) dataset, acquired in 2008, covers three plots of the research area in the Nouragues reserve. Ground echoes are available as well as a digital terrain model (DTM), a digital surface model (DSM) , and a digital canopy model (DCM) with a 1 meter resolution.
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Bathymetric datasets are an extraction of surveys belonging to the Shom public database. For depth up to 50m, the vertical precision of soundings varies from 30cm to 1m and the horizontal precision varies from 1 to 20m. In deep ocean, the vertical precision is mainly around 1 or 2% of the bottom depth. It is sometimes more, it depends on the technology used. The data are referenced to ZH which is assimilated to LAT. Data are corrected for sound velocity variations.