Main Page - Revision history

Julia Glenday: /* Background */

2023-11-23T12:55:33Z

Background

Julia Glenday at 14:59, 15 September 2023

2023-09-15T14:59:50Z

Julia Glenday: /* Welcome! */

2023-09-15T14:45:42Z

Welcome!

Julia Glenday: /* Welcome! */

2022-10-31T12:19:20Z

Welcome!

Julia Glenday at 12:52, 28 October 2022

2022-10-28T12:52:59Z

Julia Glenday at 12:40, 28 October 2022

2022-10-28T12:40:01Z

Julia Glenday: /* Welcome! */

2022-02-08T15:12:56Z

Welcome!

Julia Glenday at 11:28, 24 May 2021

2021-05-24T11:28:31Z

Julia Glenday at 11:26, 24 May 2021

2021-05-24T11:26:32Z

Julia Glenday at 11:18, 24 May 2021

2021-05-24T11:18:11Z

@@ Line 30: / Line 30: @@
 ==='''Background'''===
-The idea for this site came from a group of early-career hydrologists facing many tricky modelling decisions in their research and projects. A salient challenge was selecting which modelling tool to use for a project. This decision has impacts on the structure of the model, what processes can be represented explicitly vs implicitly in the model, the kinds of input data and parameters that will be required, what outputs can be produced, etc.  There weren't resources available that compared the structures and capabilities of different modelling tools available which included the South African developed tools, the Pitman model tools and ACRU, and were tailored to the South African context. In response, the Water Research Commission (WRC) funded the initial development of the material in this wiki through the “Critical catchment model inter-comparison and model use guidance development” project (2019-2021). More information and reports from that project are found [[Model inter-comparison study (2020-21)|here]].
+The idea for this site came from a group of early-career hydrologists facing many tricky modelling decisions in their research and projects. A salient challenge was selecting which modelling tool to use for a project. This decision has impacts on the structure of the model, what processes can be represented explicitly vs implicitly in the model, the kinds of input data and parameters that will be required, what outputs can be produced, etc.  There weren't resources available that compared the structures and capabilities of different modelling tools available which included the South African developed tools, the Pitman model tools and ACRU, and were tailored to the South African context. In response, the Water Research Commission (WRC) funded the initial development of the material in this wiki through the “Critical catchment model inter-comparison and model use guidance development” project (2019-2021). More information and reports from that project are found [[Model inter-comparison study|here]].
 [[File:Modelled_vs_observed_flow_demo.jpg|alt=|500x500px|thumb|Modelled vs observed streamflow]]
 ==='''Need more help?'''===
 If you have modelling questions that you cannot resolve by consulting the modelling tool's manual or other resources, we recommend trying the question and answer platform [https://earthscience.stackexchange.com Stack Exchange, Earth Sciences subsite], to look for help (tag question with "hydrology" and "model"). If you have gained experience using a tool, consider using Stack Exchange to provide help to others so that the questions and answers become freely available to anyone online. Guidance on using this resource for hydrological modelling assistance can be found [[Stack Exchange Question & Answer platform |here]].

@@ Line 1: / Line 1: @@
 [[File:Kouga_weir_resize.JPG|alt=|thumb|Weir on the Wabooms River, Eastern Cape]]
 ==='''<big>Welcome!</big>'''===
@@ Line 5: / Line 7: @@
 '''This wiki site was built to provide guidance for people working on hydrological modelling projects in South Africa, with a focus on catchment-scale modelling.'''
-Catchment modelling entails ''a lot'' of decision-making, from deciding how many land cover types to include, or which rainfall datasets to use, to deciding which modelling software tool to use. This wiki aims to assist people in making informed decisions about model structure and using modelling software tools to achieve their intended catchment representation.  It aims to promote the ‘wise-use’ of modelling tools for the benefit of water resources management.
+Catchment modelling entails ''a lot'' of decision-making, from deciding how many land cover types to include, or which rainfall datasets to use, to deciding which modelling software tool to use. This wiki aims to assist people in making informed decisions about model structure and using modelling software tools to achieve their intended catchment representation.  The goal is to promote the ‘wise-use’ of modelling tools for the benefit of water resources management.
 The material assumes that users have a background in hydrology and exposure to modelling. ''You can find more details about the scope of this wiki [[Scope: what’s covered (and not!) in this wiki|here]].''
@@ Line 22: / Line 25: @@
-'''This wiki is a living resource:'''
+==='''A wiki as a "living resource"'''===
 With your help this wiki site will adapt to the needs and developments in the South African modelling community. There are [[How to use "Discussion" pages|discussion pages]] associated with every content page where the user community can suggest updates. A moderator group will review and make content changes.
-'''Background:'''
+==='''Background'''===
 The idea for this site came from a group of early-career hydrologists facing many tricky modelling decisions in their research and projects. A salient challenge was selecting which modelling tool to use for a project. This decision has impacts on the structure of the model, what processes can be represented explicitly vs implicitly in the model, the kinds of input data and parameters that will be required, what outputs can be produced, etc.  There weren't resources available that compared the structures and capabilities of different modelling tools available which included the South African developed tools, the Pitman model tools and ACRU, and were tailored to the South African context. In response, the Water Research Commission (WRC) funded the initial development of the material in this wiki through the “Critical catchment model inter-comparison and model use guidance development” project (2019-2021). More information and reports from that project are found [[Model inter-comparison study (2020-21)|here]].
@@ Line 32: / Line 35: @@
-'''Need more help?''' If you have modelling questions that you cannot resolve by consulting the modelling tool's manual or other resources, we recommend trying the question and answer platform [https://earthscience.stackexchange.com Stack Exchange, Earth Sciences subsite], to look for help (tag question with "hydrology" and "model"). If you have gained experience using a tool, consider using Stack Exchange to provide help to others so that the questions and answers become freely available to anyone online. Guidance on using this resource for hydrological modelling assistance can be found [[Stack Exchange Question & Answer platform |here]].
+==='''Need more help?'''===

@@ Line 5: / Line 5: @@
 '''This wiki site was built to provide guidance for people working on hydrological modelling projects in South Africa, with a focus on catchment-scale modelling.'''
-Catchment modelling entails ''a lot'' of decision-making, from deciding how many land cover types to include to deciding which modelling software tool to use for a project. The goal of this site is to assist people in making informed decisions about model structure and using modelling software tools to achieve their intended catchment representation.  It aims to promote the ‘wise-use’ of modelling tools for the benefit of water resources management.
+Catchment modelling entails ''a lot'' of decision-making, from deciding how many land cover types to include, or which rainfall datasets to use, to deciding which modelling software tool to use. This wiki aims to assist people in making informed decisions about model structure and using modelling software tools to achieve their intended catchment representation.  It aims to promote the ‘wise-use’ of modelling tools for the benefit of water resources management.
 The material assumes that users have a background in hydrology and exposure to modelling. ''You can find more details about the scope of this wiki [[Scope: what’s covered (and not!) in this wiki|here]].''

← Older revision		Revision as of 12:19, 31 October 2022
Line 30:		Line 30:

	[[File:Modelled_vs_observed_flow_demo.jpg\|alt=\|500x500px\|thumb\|Modelled vs observed streamflow]]		[[File:Modelled_vs_observed_flow_demo.jpg\|alt=\|500x500px\|thumb\|Modelled vs observed streamflow]]
		+
		+
		+	'''Need more help?''' If you have modelling questions that you cannot resolve by consulting the modelling tool's manual or other resources, we recommend trying the question and answer platform [https://earthscience.stackexchange.com Stack Exchange, Earth Sciences subsite], to look for help (tag question with "hydrology" and "model"). If you have gained experience using a tool, consider using Stack Exchange to provide help to others so that the questions and answers become freely available to anyone online. Guidance on using this resource for hydrological modelling assistance can be found [[Stack Exchange Question & Answer platform \|here]].

@@ Line 21: / Line 21: @@
 Modelling tools also change as new versions are released and new tools are constantly being developed.   [[File:Conceptual_model_diagram_bucket_style.jpg|alt=|420x420px|thumb|Example conceptual model diagram (Glenday, 2015)|left]]
 The idea for this site came from a group of early-career hydrologists facing many tricky modelling decisions in their research and projects. A salient challenge was selecting which modelling tool to use for a project. This decision has impacts on the structure of the model, what processes can be represented explicitly vs implicitly in the model, the kinds of input data and parameters that will be required, what outputs can be produced, etc.  There weren't resources available that compared the structures and capabilities of different modelling tools available which included the South African developed tools, the Pitman model tools and ACRU, and were tailored to the South African context. In response, the Water Research Commission (WRC) funded the initial development of the material in this wiki through the “Critical catchment model inter-comparison and model use guidance development” project (2019-2021). More information and reports from that project are found [[Model inter-comparison study (2020-21)|here]].
 [[File:Modelled_vs_observed_flow_demo.jpg|alt=|500x500px|thumb|Modelled vs observed streamflow]]

@@ Line 13: / Line 13: @@
 * WRSM-Pitman
 * SPATSIM-Pitman
-* ACRU
+* ACRU4
-* SWAT
+* SWAT2012
 * MIKE-SHE

@@ Line 5: / Line 5: @@
 '''This wiki site was built to provide guidance for people working on hydrological modelling projects in South Africa, with a focus on catchment-scale modelling.'''
-Catchment modelling entails ''a lot'' of decision-making, from deciding how many land cover types to include to deciding which modelling software tool to use for a project. The goal of this site is to assist people in making informed decisions about model structure and using modelling software tools to achieve this.  It aims to promote the ‘wise-use’ of modelling tools for the benefit of water resources management. The material assumes that users have a background in hydrology and exposure to modelling. ''You can find more details about the scope of this wiki [[Scope: what’s covered (and not!) in this wiki|here]].''
+Catchment modelling entails ''a lot'' of decision-making, from deciding how many land cover types to include to deciding which modelling software tool to use for a project. The goal of this site is to assist people in making informed decisions about model structure and using modelling software tools to achieve their intended catchment representation.  It aims to promote the ‘wise-use’ of modelling tools for the benefit of water resources management.
 This wiki focuses on several modelling tools that are commonly used in South Africa:
@@ Line 15: / Line 17: @@
 * MIKE-SHE
-These tools represent a variety of modelling approaches, however there are many tools out there with a wide variety of capabilities ([[Model types & tools#Table Anchor|see examples]]). Modelling tools also change as new versions are released and new tools are constantly being developed.   [[File:Conceptual_model_diagram_bucket_style.jpg|alt=|420x420px|thumb|Example conceptual model diagram (Glenday, 2015)|left]]
+These tools represent a variety of modelling approaches, however there are many tools out there with a wide variety of capabilities ([[Model types & tools#Table Anchor|see examples]]).
 '''This wiki is a living resource:''' With your help this wiki site will adapt to the needs and developments in the South African modelling community. There are [[How to use "Discussion" pages|discussion pages]] associated with every content page where the user community can suggest updates. A moderator group will review and make content changes.
@@ Line 21: / Line 25: @@
-The idea for this site came from a group of early-career hydrologists facing many tricky modelling decisions in their research and projects. A salient challenge was selecting which modelling tool to use for a project. This decision has impacts on the structure of the model, what processes can be represented explicitly vs implicitly in the model, the kinds of input data and parameters that will be required, what outputs can produced, etc.  There weren't resources available that compared the structures and capabilities of different modelling tools available which included the South African developed tools, the Pitman model tools and ACRU, and were tailored to the South African context. In response, the Water Research Commission (WRC) funded the initial development of the material in this wiki through the “Critical catchment model inter-comparison and model use guidance development” project (2019-2021). More information and reports from that project are found [[Model inter-comparison study (2020-21)|here]].
+The idea for this site came from a group of early-career hydrologists facing many tricky modelling decisions in their research and projects. A salient challenge was selecting which modelling tool to use for a project. This decision has impacts on the structure of the model, what processes can be represented explicitly vs implicitly in the model, the kinds of input data and parameters that will be required, what outputs can be produced, etc.  There weren't resources available that compared the structures and capabilities of different modelling tools available which included the South African developed tools, the Pitman model tools and ACRU, and were tailored to the South African context. In response, the Water Research Commission (WRC) funded the initial development of the material in this wiki through the “Critical catchment model inter-comparison and model use guidance development” project (2019-2021). More information and reports from that project are found [[Model inter-comparison study (2020-21)|here]].
 [[File:Modelled_vs_observed_flow_demo.jpg|alt=|500x500px|thumb|Modelled vs observed streamflow]]

← Older revision		Revision as of 11:18, 24 May 2021
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	[[File:Modelled_vs_observed_flow_demo.jpg\|alt=\|500x500px\|thumb\|Modelled vs observed streamflow]]		[[File:Modelled_vs_observed_flow_demo.jpg\|alt=\|500x500px\|thumb\|Modelled vs observed streamflow]]
−
−
−	~~{\| class="wikitable"~~
−	~~! Modelling tool !! Current curator / developer / owner !! Proprietary !! Time step !! Spatial discretization options* !! Documentation references~~
−	\|-
−	\| ACRU (Agricultural Catchment Research Unit model) \|\| University of KwaZulu Natal (UKZN) Centre for Water Resources Research (CWRR) \|\| no \|\| Daily \|\| Semi-distributed: HRUs (not catena) in subcatchments \|\| (Schulze, 1986, 1995; Schulze and Davis, 2018)
−	\|-
−	~~\| FLEX- Topo \|\| Delft University of Technology, Water Resources (TU-Deft) \|\| no \|\| Daily & sub-daily \|\| Semi-distributed: HRUs (catena or not) in subcatchments \|\| (Savenije, 2010)~~
−	\|-
−	\| HBV (Hydrologiska Byråns Vattenbalansavdelning) \|\| Swedish Meteorological and Hydrological Institute (SMHI) \|\| no \|\| Daily & sub-daily \|\| Lumped/semi-distributed: Subcatchment (zone option for snow & soil moisture) \|\| (Bergström, 1976, 1995)
−	\|-
−	\| HEC-HMS + HEC-RAS (Hydrologic Engineering Center - Hydrologic Modelling System & River Analyses System) \|\| US Army Corps of Engineers (USACE) \|\| no \|\| Daily & sub-daily \|\| Semi-distributed: HRUs (not catena) in subcatchments \|\| (USACE-HEC, 2000, 2010, 2018)
−	\|-
−	\| HPSF (Hydrological Simulation Program – FORTRAN) \|\| U.S. Environmental Protection Agency (EPA) & U.S. Geological Survey (USGS) \|\| no \|\| Daily & sub-daily \|\| Lumped/semi-distributed: Subcatchment OR HRUs in subcatchments \|\| (Bicknell et al., 1993; Johanson et al., 1980)
−	\|-
−	\| HYPE (Hydrological Predictions for the Environment) \|\| Swedish Meteorological and Hydrological Institute (SMHI) \|\| no \|\| Daily \|\| Semi-distributed: HRUs (not catena) in subcatchments \|\| (Arheimer et al., 2008; Lindström et al., 2010)
−	\|-
−	\| MIKE-SHE + MIKE-11 (Système Hydrologique Européen) \|\| Danish Hydrologic Institute (DHI) \|\| yes \|\| Daily & sub-daily \|\| Distributed/semi-distributed: Gridded OR HRUs (catena or not) in subcatchments \|\| (Abbott et al., 1986; DHI, 2014; Refsgaard and Storm, 1995)
−	\|-
−	\| Pitman / WRSM-Pitman (Water Resources System Model) / SPATSIM-Pitman ( \|\| Water Research Commission (WRC); SPATSIM: Rhodes University Institute of Water Resources (IWR) \|\| no \|\| Monthly (daily version exists) \|\| Lumped/semi-distributed: Subcatchments (internal subdivision options: irrigated, IAP, wetland, impervious) \|\| (Bailey and Pitman, 2015; Hughes, 2004, 2013; Pitman, 1973)
−	\|-
−	\| RHESSys (Regional Hydro-Ecological Simulation System) \|\| University of California Santa Barbara, Bren School of Environmental Science & Management \|\| no \|\| Daily \|\| Semi-distributed: HRUs (catena routing) in subcatchments (‘patches’ along ‘hillslopes’ in ‘basins’) \|\| (Running and Coughlan, 1988; Tague and Band, 2004)
−	\|-
−	\| SWAT (Soil and Water Assessment Tool) \|\| Texas A&M University & US Department of Agriculture (USDA-ARS) \|\| no \|\| Daily & sub-daily \|\| Semi-distributed: HRUs (not catena) in subcatchments \|\| (Arnold et al., 1998; Neitsch et al., 2011)
−	\|-
−	~~\| TOPMODEL \|\| Lancaster University, Department of Environmental Science \|\| no \|\| Daily & sub-daily \|\| Distributed: Gridded \|\| (Beven and Kirkby, 1979)~~
−	\|-
−	~~\| VIC (Variable Infiltration Capacity model) \|\| University of Washington, Department of Civil and Environmental Engineering \|\| no \|\| Daily & sub-daily \|\| Distributed: Gridded \|\| (Liang et al., 1994)~~
−	\|-
−	\| WEAP (Water Evaluation and Planning System) \|\| Stockholm Environment Institute's U.S. Center \|\| no \|\| Month \|\| Semi-distributed: HRUs (not catena) in subcatchments \|\| (Sieber, 2019; Yates et al., 2005)
−	\|-
−	~~\| 3Di \|\| 3Di Foundation (Delft University of Technology, Deltares, Nelen & Schuurmans consulting) \|\| yes \|\| Daily & sub-daily \|\| Distributed: Gridded \|\| (3Di Foundation 2015)~~
−	\|}