@article{fdi:010072090, title = {{C}orrelation between soil erosion and satellite data on areas of current desertification : a case study in {S}enegal}, author = {{D}e {C}arvalho {J}unior, {W}. and {L}oireau, {M}aud and {F}argette, {M}ireille and {C}alderano {F}ilho, {B}. and {W}{\'e}l{\'e}, {A}.}, editor = {}, language = {{ENG}}, abstract = {{T}he purpose of the study is to verify whether some correlation exists between soil erodibility (i.e. {K} factor mentioned in {RUSLE} model) and data obtained from satellite images. {T}his piece of work represents a first attempt towards a model that would predict the risk for soil erosion, from information contained in satellite images. {O}uarchoch is a rural community in {F}erlo {R}egion, {S}enegal. {I}t lies in a {S}ahelian typical arid zone and is affected by desertification processes. {O}uarchoch site was the pilot area on which the test was performed. {K} factor was calculated by using soil textural data (sand, silt and clay) in the top (0 – 5 cm) soil layer (data obtained from the web). {L}andsat7 satellite images represented different seasonal snapshots ("cool" dry season, warm dry season, rainy season, end of rainy season or beginning of dry season) of the same year, 2014. {C}alculation used {B}ands 1 to 7 and {N}ormalized {D}ifference {V}egetation {I}ndex ({NDVI}). {T}he choice of data, calculation and analysis are detailed. {S}ome positive moderate correlation exists between soil erodibility on the one hand, and {NDVI} index displayed during the dry season (images in {J}anuary and {M}ay), as well as {B}and 5 radiations displayed at the beginning of the dry season (post-harvest, image in {O}ctober) on the other hand.}, keywords = {{TELEDETECTION} {SPATIALE} ; {IMAGE} {SATELLITE} ; {TEXTURE} {DU} {SOL} ; {ERODIBILITE} {DU} {SOL} ; {DESERTIFICATION} ; {GESTION} {DE} {L}'{ENVIRONNEMENT} ; {CORRELATION} ; {SENEGAL}}, booktitle = {}, journal = {{C}i{\^e}ncia e {T}rópico}, volume = {41}, numero = {2}, pages = {51--66}, ISSN = {0304-2685}, year = {2017}, URL = {https://www.documentation.ird.fr/hor/fdi:010072090}, }