246 jeux de données trouvés.
Bolivia : salinidades ionicas de los rios de la cuenca amazonica. A set of 3 map sheets. Scale of 1:10 000 000 to 1:1 000 000. Date of publication: 1986.
A set of 3 map sheets…
Carta pedo-geomorfologica de la provincia del Pastaza. One map sheet. Scale of 1:500 000. Date of publication: 1979.
The map sheet…
Bridge: plots of old-growth forest to gather information on tree diversity and to test ecological theories in French Guiana since 2007.
The project Bridging Information on Tree Diversity in French Guiana, and a Test of Ecological Theories (BRIDGE) brings together researchers from nine different European research groups in tropical ecology, and seeks to improve our knowledge on the various dimensions of tree biological diversity in French Guiana. The project includes ten one-hectare old-growth forest tree plots across a range of geology and rainfall in French Guiana. The amount…
Inventaires Papetiers Cayenne 02
This “Inventaire Papetier” was conducted by the CTFT in 1975. The block covers 23 706 ha. 11 427 trees have been inventoried in 97 plots (47 ha) Pre-census DBH is 10 cm on one plot out of 10 and 15 cm in the others. DBH have been measured by classes : 10-20 cm or 15-20 cm for the first class and with a range of 10 cm since 20 cm. Plots have been located on GIS in 2006 using original maps and field note-books (indicating slopes, rivers, etc...).
Aerial laser scanning (ALS) dataset, St Elie, French Guiana, acquired on 7 April 2009.
The aerial laser scanning (ALS) dataset, acquired on 7 April 2009, covers two seperate areas along the track leading to St Elie in French Guiana. The northern plot has an area of 4.5 sq.km. This area covers the 100 hectares IRD-biodiversity plot. The southern area (1.4 sq.km) covers a grove of Spirotropis longifolia. The Lidar data was acquired as part of the Guyafor project. It was shared with the ESA Tropisar project and the Biomass project at…
Habitats Kourouaï: transects to sample the local environmental variability in July 2008.
The site Kourouaï is composed of three 3km-transects (20m wide). 3419 trees with dbh>=20cm have been recorded by Office national des forêts (ONF). No fauna inventories on this site. 685 under-storey plants have been recorded on 25 25m²-plots. Soils have been described using 11 samples (1.20m depth max.). No laboratory analysis available for soils.
Landsat 7 ETM+ satellite image, path 227 row 56, acquired on 27 September 2005
The image is available for free on the USGS Glovis website.
Inventaires Papetiers Kourou 01
This “Inventaire Papetier” was conducted by the CTFT in 1975. The block covers 59 895 ha. 34 016 trees have been inventoried in 244 plots (120 ha) Pre-census DBH is 15 cm on all plot (originally trees with DBH 10-15cm have been measured on one plot out of 10 but not included in the digital version) DBH have been measured by classes : 15-20 cm for the first class and with a range of 10 cm since 20 cm. Plots have been located on GIS in 2008 using…
Collection of aerial photographs acquired by Institut Géographique National (IGN) in French Guiana since 1950.
Collection of aerial photographs acquired by Institut Géographique National (IGN) in French Guiana. All the aerial photographs are available for free on the IGN geoportail.
Inventaires Papetiers to assess the forest resources in French Guiana between 1972 and 1976.
The “Inventaire Papetier” was conducted by the CTFT (Centre Technique Forestier Tropical became CIRAD in 1984) and ONF between 1972 and 1976. To assess the forest resources in French Guiana, the forest was divided in large blocks along the coast (4 blocks near St Laurent, 4 blocks near Kourou and Sinnamary, 6 southern of Cayenne). Within the blocks, the forest was inventoried in 25*200m plots placed every 200-400m on parallel lines separated by…
Guyadiv Crique Cacao: plots of forest inventory since 1987.
Guyadiv is a network of permanent forest plots installed in French Guiana. The site of Crique Cacao is composed of two plots (20x530m and 20x200m). A complete inventory has been made in 1987, 662 trees with dbh >= 10cm have been inventoried. In the first plot, 433 species have been determined and 193 in the second plot. The percentages of trees identified to the species level are respectively 93.7% and 96.5% for each plot. We only have the…
Satellite Image SPOT 4 Panchromatic and Multispectral 10m, Cayenne, French Guiana, acquired on 1 july 2001
The satellite image covers the area around Cayenne in French Guiana.
Aerial laser scanning (ALS) dataset, Paracou, French Guiana, acquired between 6 and 7 April 2009.
The aerial laser scanning (ALS) dataset, acquired between 6 and 7 April 2009, covers the experimental station Paracou in French Guiyana. More precisely, the dataset covers 9 plots totally (Paracou 4, Paracou 5, Paracou 7, Paracou 8, Paracou 9 - Paracou 12, and Paracou 14) and 4 plots partly (Paracou 3, Paracou 6, Paracou 13, and Paracou 15). The area includes exploited and non-exploited forest and Pinot palm. Ground control points are available.…
Satellite Image Pléiades 1A Panchromatic and Multispectral 0.5m, Paracou, French Guiana, acquired on 21 October 2013
The image covers the experimental station Paracou in French Guiana.
Habitats Pic du Grand Croissant : transects to sample the local environmental variability in November 2005.
The site Pic du Grand Croissant is composed of 4 3km-transects (20m wide). 3986 trees with dbh>=20cm have been recorded by Office national des forêts (ONF). Fauna have been inventoried few days after (ONCFS). No under-storey survey on this site. Soils have been described using 12 samples (1.20m depth max.). Laboratory analysis are available for one soil profiles.
Monthly 0.25° x 0.25° Tropical Rainfall Measuring Mission (TRMM 3B43) data for French Guiana since 1998
The dataset (TRMM 3B43) comprises monthly rainfall datas (mm/hr) acquired during the Tropical Rainfall Measuring Mission (TRMM) since 1998. The TRMM algorithm 3B42 provides adjusted 3-hour cumulative estimates of rain using merged microwave and infrared (IR) precipitation information.
Guyafor Montagne Plomb: permanent plots of forest inventories since 2005
Guyafor is a network of permanent forest plots installed in French Guiana. The site of Montagne Plomb covers a 6ha area, managed by CIRAD. 3249 trees are being followed. Three campaignes of inventories have been made in 2005, 2008 and 2010.
Guyane française : hydrographie et relief : (feuille Nord). One map sheet. Scale of 1:500 000. Date of publication: 1949.
The map sheet…
Lenguages indigenas de la Amazonia colombiana. One map sheet. Scale of 1:3 500 000. Date of publication: 1998.
The map sheet…
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