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Erosion Map of the Dano Catchment as Simulated by SHETRAN, Burkina Faso, 2013-2014

This map shows the spatial soil erosion and deposition pattern as simulated by the hydrological and soil erosion model SHETRAN. A general discussion on the creation of this map and the uncertainty is given under: http://www.mdpi.com/2073-4441/9/2/101

Simple

Date (Publication)
2018-04-04T09:00:00
Presentation form
Digital map
Status
Completed
Author
  Department of Geography - University of Bonn - Felix Op de Hipt ( Junior Researcher )
Meckenheimer Allee 166 , Bonn , North Rhine-Westphalia , 53115 , Germany
+49 (0)228 / 73-60710
Maintenance and update frequency
As needed
GEMET - Concepts, version 2.4
  • erosion
  • soil erosion
  • water erosion
  • modelling
  • map
Theme
  • soil deposition
Region
  • Burkina Faso
  • Western Africa
Place
  • Dano catchment
Access constraints
License
Use constraints
License
Other constraints

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

http://creativecommons.org/licenses/by-sa/4.0/

Citation:

Op de Hipt, F. (2018): Erosion Map of the Dano Catchment as Simulated by SHETRAN, Burkina Faso, 2013-2014

https://wascal-dataportal.org/geonetwork/?uuid=6dbd9c4f-1009-49b7-9be4-a1ac55b74cf5

Aggregate Datasetindentifier
44ecebe6-6ffd-41f4-8eff-09405ca3bb26
Association Type
Cross reference
Initiative Type
Study
Spatial representation type
Grid
Denominator
70000
Metadata language
English
Character set
UTF8
Topic category
  • Environment
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W
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Begin date
2013-01-01
End date
2014-12-31
Supplemental Information
Erosion and deposition is expressed as tons/ha/year
Reference system identifier
WGS 1984
Distribution format
  • GeoTIFF ( 1.0 )

Distributor
  WASCAL -
OnLine resource
Soil_erosion.lyr ( WWW:DOWNLOAD-1.0-http--download )

Layer File

OnLine resource
soilerosion.tif ( WWW:DOWNLOAD-1.0-http--download )

Data as TIFF (in WGS 84)

OnLine resource
WASCAL:WSC_soil_erosion_shetran_dano-catch_burkina-faso_ras ( OGC:WMS-1.1.1-http-get-map )

Erosion Map of the Dano Catchment as Simulated by SHETRAN

Hierarchy level
Dataset
Statement
The map shows the spatial pattern of soil erosion and deposition on hillslopes as simulated by the best SHETRAN simulation for the calibration period. Erosion ranges from 1.6 to almost 0 t/ha/year and deposition from 0 to 1.8 t/ha/year. Regarding erosion 55% of the grid cells are within the range of 0.03 to <0 t/ha/year. However, given the spatial heterogeneity of the controlling factors that are considered (slope, land use, soil properties, hydrological conditions) and the complex model approach it is difficult to clearly identify erosion hot spots and to explicitly attribute these hot spots to a single factor or reason. One example in this context is the hilly area in the western part of the catchment: We assumed the highest erosion rates would be found here due to the steep slopes and the partly practiced agriculture but simulated erosion is not especially high compared with other parts of the catchment. The small erosion rates are attributed to the low simulated surface runoff due to a small drainage area of these cells. Hence, rain drop detachment may be high but surface runoff is insufficient to transport the available sediment. High erosion rates simulated close to the river channel are a result of higher surface runoff simulated in cells close to the valley bottoms as a result of larger drainage areas and overbank flow. Field observations confirm overbank flow during large events but the areas are rather characterized by deposition of fine material and not necessarily by erosion as simulated. To get a more realistic representation of the vegetation close to the rivers (gallery forests), a fifth land use type with the same properties as savannah vegetation was introduced around the river links. Though this led to lower erosion rates, it negatively affected the performance of the simulated hydrograph and was therefore discarded.
File identifier
6dbd9c4f-1009-49b7-9be4-a1ac55b74cf5 XML
Metadata language
English
Character set
UTF8
Parent identifier
Modeling climate and land use change impacts on water resources and soil erosion in the Dano catchment (Burkina Faso, West Africa) - Dissertation 2018 c47ea007-ec78-473c-a161-9c8c2b8952c4
Date stamp
2021-03-18T16:57:35
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0
Author
  Felix Op de Hipt
+49 (0)228 / 73-60710
 
 

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Spatial extent

N
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E
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Keywords

soil deposition
GEMET - Concepts, version 2.4
erosion map modelling soil erosion water erosion

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