Wouter J. M. Knoben

University of Saskatchewan | Postdoctoral Fellow

 Recent Activity

ABSTRACT:

This resource contains the ESRI shapefiles used during basin delineation of the CAMELS-spat database. CAMELS-spat contains a collection of river basins in the United States and Canada that can be used for model evaluation and improvement. These shapefiles are provided here to increase reproducibility of the data set creation process.

Show More

ABSTRACT:

Test cases for the Structure for Unifying Multiple Modeling Alternatives (SUMMA; Clark et al., 2015a,b,c, 2021) v3.x.

Note that SUMMA v3.x is structured differently than SUMMA v1.x and v2.x, and these test cases do not work with earlier SUMMA versions. See the included README for further details.

Show More

ABSTRACT:

Hydrologic modeling can benefit from well-documented workflows that track every decision made during model configuration. Such a workflow is described in the paper "Community Workflows to Advance Reproducibility in Hydrologic Modeling: Separating model-agnostic and model-specific configuration steps in applications of large-domain hydrologic models". This resource contains the ESRI shapefiles used in this paper's global and continental test cases. The shapefiles are provided per continent (excluding Greenland and Antarctica) and contain both river basin discretizations and river networks. These shapefiles are based on the Merit Hydro basin delineation (Lin et al., 2019) and differ from that work only in small ways. They are provided here to provide full traceability of the work presented in the "Community Workflows" paper.

Show More

ABSTRACT:

This resource contains a global map of soil texture classes, derived from SOILGRIDS data (Hengl et al., 2017) using the revised soil texture triangle definitions from Benham et al. (2009). Global maps of sand, silt and clay percentages were downloaded for 7 soil depths (0, 5, 15, 30, 60, 100 and 200 cm) at the native SOILGRIDS resolution of 250 m by 250 m. For each depth, percentages were converted into 1 out of 12 possible soil texture classes. The map in this resource represents the mode soil texture class over the 7 depths at each pixel. In case of a tie on a given pixel (i.e. two or more soil texture classes occur the most often with an equal number of times), the lowest class number is shown. This is a choice of convenience; no physical considerations support this choice.

Soil texture class definitions:
0: no class assigned (source data sand, silt, clay percentages all contain "no data" values)
1: Clay
2: Clay loam
3: Loam
4: Loamy sand
5: Sand
6: Sandy clay
7: Sandy clay loam
8: Sandy loam
9: Silt
10: Silty clay
11: Silty clay loam
12: Silt loam

Source data downloaded on 25-26 April, 2020, from: https://files.isric.org/soilgrids/data/recent/. URL has since changed to: https://files.isric.org/soilgrids/former/2017-03-10/data/. Code used to generate this map can be found in the folder `code` that is part of this resource.

Show More

ABSTRACT:

Hydrologic simulations with the Structure for Unifying Multiple Modelling Alternatives (SUMMA) for the Bow river above Banff, AB, Canada. Contains simulations for four different spatial discretizations, including routing results where applicable.

Hydrologic model: SUMMA (Clark et al., 2015a,b)
Routing: mizuRoute (Mizukami et al., 2016)
Meteorologic forcing data: WRF (Liu et al., 2017)
Soil classes: derived from sand/soil/silt % in SOILGRIDS (Hengl et al., 2017)
Land use classes: MODIS Vegetation and land use (Friedl et al., 2019)

Show More

 Contact

Resources
All 0
Collection 0
Resource 0
App Connector 0
Resource Resource

ABSTRACT:

Hydrologic simulations with the Structure for Unifying Multiple Modelling Alternatives (SUMMA) for the Bow river above Banff, AB, Canada. Contains simulations for four different spatial discretizations, including routing results where applicable.

Hydrologic model: SUMMA (Clark et al., 2015a,b)
Routing: mizuRoute (Mizukami et al., 2016)
Meteorologic forcing data: WRF (Liu et al., 2017)
Soil classes: derived from sand/soil/silt % in SOILGRIDS (Hengl et al., 2017)
Land use classes: MODIS Vegetation and land use (Friedl et al., 2019)

Show More
Resource Resource
Global USDA-NRCS soil texture class map
Created: March 24, 2021, 10:31 p.m.
Authors: Knoben, Wouter J. M.

ABSTRACT:

This resource contains a global map of soil texture classes, derived from SOILGRIDS data (Hengl et al., 2017) using the revised soil texture triangle definitions from Benham et al. (2009). Global maps of sand, silt and clay percentages were downloaded for 7 soil depths (0, 5, 15, 30, 60, 100 and 200 cm) at the native SOILGRIDS resolution of 250 m by 250 m. For each depth, percentages were converted into 1 out of 12 possible soil texture classes. The map in this resource represents the mode soil texture class over the 7 depths at each pixel. In case of a tie on a given pixel (i.e. two or more soil texture classes occur the most often with an equal number of times), the lowest class number is shown. This is a choice of convenience; no physical considerations support this choice.

Soil texture class definitions:
0: no class assigned (source data sand, silt, clay percentages all contain "no data" values)
1: Clay
2: Clay loam
3: Loam
4: Loamy sand
5: Sand
6: Sandy clay
7: Sandy clay loam
8: Sandy loam
9: Silt
10: Silty clay
11: Silty clay loam
12: Silt loam

Source data downloaded on 25-26 April, 2020, from: https://files.isric.org/soilgrids/data/recent/. URL has since changed to: https://files.isric.org/soilgrids/former/2017-03-10/data/. Code used to generate this map can be found in the folder `code` that is part of this resource.

Show More
Resource Resource

ABSTRACT:

Hydrologic modeling can benefit from well-documented workflows that track every decision made during model configuration. Such a workflow is described in the paper "Community Workflows to Advance Reproducibility in Hydrologic Modeling: Separating model-agnostic and model-specific configuration steps in applications of large-domain hydrologic models". This resource contains the ESRI shapefiles used in this paper's global and continental test cases. The shapefiles are provided per continent (excluding Greenland and Antarctica) and contain both river basin discretizations and river networks. These shapefiles are based on the Merit Hydro basin delineation (Lin et al., 2019) and differ from that work only in small ways. They are provided here to provide full traceability of the work presented in the "Community Workflows" paper.

Show More
Resource Resource

ABSTRACT:

Test cases for the Structure for Unifying Multiple Modeling Alternatives (SUMMA; Clark et al., 2015a,b,c, 2021) v3.x.

Note that SUMMA v3.x is structured differently than SUMMA v1.x and v2.x, and these test cases do not work with earlier SUMMA versions. See the included README for further details.

Show More
Resource Resource

ABSTRACT:

This resource contains the ESRI shapefiles used during basin delineation of the CAMELS-spat database. CAMELS-spat contains a collection of river basins in the United States and Canada that can be used for model evaluation and improvement. These shapefiles are provided here to increase reproducibility of the data set creation process.

Show More