Model:WOFOST

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WOFOST

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Summary Contact Technical specs In/Output Process Testing Other Component info Also known as Model type Single Model part of larger framework Note on status model Date note status model Incorporated models or components: Spatial dimensions 1D Spatial extent Point-Based, Watershed-Scale Model domain Terrestrial One-line model description WOFOST (WOrld FOod STudies) is a simulation model for the quantitative analysis of the growth and production of annual field crops. Extended model description It is a mechanistic model that explains crop growth on the basis of the underlying processes, such as photosynthesis, respiration and how these processes are influenced by environmental conditions. With WOFOST, you can calculate attainable crop production, biomass, water use, etc. for a location given knowledge about soil type, crop type, weather data and crop management factors (e.g. sowing date). WOFOST has been used by many researchers over the World and has been applied for many crops over a large range of climatic and management conditions. WOFOST is one of the key components of the European MARS crop yield forecasting system. In the Global Yield Gap Atlas (GYGA) WOFOST is used to estimate the untapped crop production potential on existing farmland based on current climate and available soil and water resources. Keywords: Crop production, Biomass production, phenology, agromanagement, Name Hendrik Boogaard Type of contact Project manager Institute / Organization Wageningen Environmental Research, Wageningen UR Postal address 1 PO Box 47 Postal address 2 Town / City Wageningen Postal code 6700AA State Country Netherlands Email address hendrik.boogaard@wur.nl Phone 0317-481635 Fax Name Allard de Wit Type of contact Model developer Institute / Organization Wageningen Environmental Research, Wageningen UR Postal address 1 PO Box 47 Postal address 2 Town / City Wageningen Postal code 6700AA State Country Netherlands Email address allard.dewit@wur.nl Phone 0317-481914 Fax Supported platforms Unix, Linux, Mac OS, Windows Other platform Programming language Fortran77, Fortran90, Python, Java Other program language Wageningen-UR maintains implementations of WOFOST in Fortran, python and java. However, there are currently 14 known implementations of WOFOST in a variety of programming languages. Code optimized Single Processor Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 1965 Does model development still take place? Yes If above answer is no, provide end year model development Code development status Active When did you indicate the 'code development status'? 2020 Model availability As code Source code availability (Or provide future intension) Through web repository Source web address https://github.com/ajwdewit/WOFOST https://github.com/ajwdewit/pcse https://www.swap.alterra.nl/ Source csdms web address Program license type Other Program license type other EUPL/GPL Memory requirements Depends on implementation: 20 Mb (Fortran) to 150 Mb (python) Typical run time seconds Describe input parameters The input data for WOFOST consists of three categories: 1. Daily weather variables (temperature, radiation, precipitation, humidity, windspeed) 2. Parameters for the crop, soil and site 3. Agromanagement information related to the cropping practices: sowing, harvesting, irrigation, nutrient application, etc. How these inputs are provided to the model depends on the implementation. Input format ASCII Other input format For the python and java implementations, the model itself is independent of the input/output format. Inputs can be read from files, relational databases or web resources while outputs can be written to files (CSV, Excel), databases or cloud storage (S3 buckets). The older Fortran implementations of the model require ASCII input files in the so-called CABO format. Describe output parameters WOFOST simulates the growth of a specific crop and its interaction with the soil. Its main output variables consist of crop variables (like total biomass, yield, phenological development and leaf area index) and soil variables like soil water content. More recent versions of WOFOST also include the N/P/K amounts in the crop organs and soil. Output format ASCII Other output format For the python and java implementations, the model itself is independent of the input/output format. Output can be queried from the model and written to any storage option available. The older Fortran implementation write ASCII output files Pre-processing software needed? No Describe pre-processing software Post-processing software needed? No Describe post-processing software Visualization software needed? Yes If above answer is yes Other visualization software The python version is used a lot in combination with Jupyter notebooks to visualize and analyze results. Describe processes represented by the model In WOFOST, crop growth is simulated on the basis of eco-physiological processes. The major processes are phenological development, light interception, CO2-assimilation, transpiration, respiration, partitioning of assimilates to the various organs, and dry matter formation. Further, the interaction with the soil is included in relation to soil moisture availability and (in more recent version) also soil N/P/K availability. Potential and water-limited growth is simulated dynamically, with a time step of one day. Nutrient-limited production is calculated either statically based on the QUEFTS approach (on the basis of soil characteristics and the water-limited production output) or dynamically using nutrient demand/supply at daily time steps. Describe key physical parameters and equations -- Describe length scale and resolution constraints -- Describe time scale and resolution constraints days Describe any numerical limitations and issues -- Describe available calibration data sets -- Upload calibration data sets if available: Describe available test data sets Model test data are available through https://github.com/ajwdewit/pcse and described in https://doi.org/10.1016/j.agwat.2019.105746 Upload test data sets if available: Describe ideal data for testing -- Do you have current or future plans for collaborating with other researchers? Is there a manual available? Yes Upload manual if available: Media:User manual WOFOST CONTROL CENTRE 2 1 v2.pdf Model website if any https://www.wur.nl/en/Research-Results/Research-Institutes/Environmental-Research/Facilities-Products/Software-and-models/WOFOST/Principles-of-WOFOST.htm Model forum / discussion board Several documents are available describing WOFOST: - An introductory paper: https://doi.org/10.1016/j.agsy.2018.06.018 - A reference manual describing the algorithms behind the model: https://wofost.readthedocs.io/en/latest/ - Description of implementations: * Fortran: https://www.wur.nl/en/show/WOFOST-7.1-User-Manual.htm * python: http://pcse.readthedocs.io/ Comments All links to documentation of WOFOST are available on the WOFOST page on the WageningenUR web site given above. This part will be filled out by CSDMS staff OpenMI compliant No but possible BMI compliant No but possible WMT component No but possible PyMT component Is this a data component Can be coupled with:

Model info Authors Hendrik Boogaard de Wit Source code [https://github.com/ajwdewit/WOFOST https://github.com/ajwdewit/pcse https://www.swap.alterra.nl/ Go to external source code site] Model citations Nr. of publications: 126 Total citations: 4957 h-index: 34 m-quotient: 0.83 QR-code Link to this page Other models by author WOFOST

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Nr. of publications:	126
Total citations:	4957
h-index:	34
m-quotient:	0.83

Featured reference(s)	Open Access Status	Year	Type of Reference	Cited
de Wit, Allard; Boogaard, Hendrik; Fumagalli, Davide; Janssen, Sander; Knapen, Rob; van Kraalingen, Daniel; Supit, Iwan; van der Wijngaart, Raymond; van Diepen, Kees; 2019. 25 years of the WOFOST cropping systems model. Agricultural Systems, 168154–167. 10.1016/j.agsy.2018.06.018	cc-by · publishedVersion	2019	a module overview describing a module	389
Diepen, C.A.; Wolf, J.; Keulen, H.; Rappoldt, C.; 1989. WOFOST: a simulation model of crop production. Soil Use and Management, 516–24. 10.1111/j.1475-2743.1989.tb00755.x	· submittedVersion	1989	a module overview describing a module	758

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