@article{fdi:010061404, title = {{L}andform and landscape mapping, {F}rench {G}uiana ({S}outh {A}merica)}, author = {{G}uitet, {S}. and {C}ornu, {J}ean-{F}ran{\c{c}}ois and {B}runaux, {O}. and {B}etbeder, {J}. and {C}arozza, {J}. {M}. and {R}ichard-{H}ansen, {C}.}, editor = {}, language = {{ENG}}, abstract = {{I}n this paper two geomorphologic maps (landform level and landscape level) are presented covering the {F}rench {G}uianan rainforest (84,000km(2)) using full-resolution {S}huttle {R}adar {T}opography {M}ission ({SRTM}) data. {T}he entire country was segmented into 224,000 landform units on the basis of an original object-oriented approach using a modified counting box algorithm. {A} {P}rincipal {C}omponents {A}nalysis ({PCA}) followed by k-means clustering ({W}ard's method) identified 12 different landform types corresponding to theoretical elementary landforms. {T}he landscape map was generated by analyzing the spatial distribution of the different landform types. {T}he different maps and models were compared with topographic field data collected on 92 transects totaling 260km in length. {T}he object-focused approach is a very efficient method that preserves geomorphologic consistency and discriminates between landforms using simple descriptors that are easily understood by non-geomorphologists. {D}espite major noise in the data, the landform map proved to be reliable and provided a strong spatial structure for the definition of landscape units. {W}e recommend using the landform map at scales 1: 100,000-1: 250,000. {L}andscape map, used on a 1:1,000,000-1:2,000,000 scale, enabled us to draw bio-geographical limits in this region and provides exhaustive relief information that usefully supplements the geological map.}, keywords = {geomorphology ; geodiversity ; rainforest ; remote-sensing ; {SRTM} ; {G}uiana ; shield ; {GUYANE} {FRANCAISE}}, booktitle = {}, journal = {{J}ournal of {M}aps}, volume = {9}, numero = {3}, pages = {325--335}, ISSN = {1744-5647}, year = {2013}, DOI = {10.1080/17445647.2013.785371}, URL = {https://www.documentation.ird.fr/hor/fdi:010061404}, }