02017nab a2200253 i 4500003000900000005001700009008004100026040001800067072000800085100001900093100002300112100002100135100002200156245005900178500007000237520109300307650000901400650003101409650002501440773019001465856008101655942000801736999001901744BR-BrBNA20260401181947.0260401b2019    bl.qr|pooa||| 00| 0 eng |  aBR-BrBNAbeng  aP10  aFicher, Kevin   aPereira, Donizete   aAlmeida, André  aOliveira, Josiane  aWater Basin Delimitation in a Relief Transition Region  aPublicação on-line; 26 ref.; 2 tables; 7 illus.; Summary (En)  a

ABSTRACT

The objective of this work was to evaluate the performance accuracy of digital elevation models
in delimiting a water basin located in the relief transition region between the São Francisco
Plateau, São Franciscana Depression and the Espinhaço mountain range. Four digital elevation
models with data from the Shuttle Radar Topographic Mission (SRTM) and map topography were
generated using the Topo To Raster interpolator with and without support from hydrography maps
(IBGE), and another with the original SRTM data. For each digital elevation model, its accuracy
was evaluated for representing: the drainage, the hydrography and basin mouth in comparison
to the references obtained from IBGE maps. The models generated with SRTM and topographic
data supported by hydrography maps showed good performance, with small delimitation errors
in the water basin. Those generated without support from hydrography maps showed gross
errors due to non-representation of the hydrography in the São Franciscana Depression region.

Keywords: SRTM, topographic maps, interpolation.  aMAPA  aLEVANTAMENTO TOPOGRÁFICO  aBACIA HIDROGRÁFICA0 029299347952dRio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994o2025-0451tFloresta e Ambiente (Brazil)x1415-0980  /  ISSN 2179-8087 0nlinegv. 26(3) p. 1-12; (2019)wBR2026000248  uhttps://www.scielo.br/j/floram/a/KvXwGcDCBHkTRMB8L6PxfHN/?format=pdf&lang=en  cANA  c341207d341207