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| '''The Waterwijzer API connection is currently not functional, therefor this overlay has been deprecated!'''
| | The Waterwijzer functionality has been removed in 2025. Please contact Tygron for more information. |
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| The waterwijzer overlay provides the yield loss of crops based on several [[Waterwijzer Overlay#Considerations|input parameters]]. The yield loss is currently calculated by the Waterwijzer Landbouw module, which is described [https://waterwijzerlandbouw.wur.nl/ here].
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| ==Usage==
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| The Waterwijzer Overlay results can be used to:
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| * Calculate the yield loss based on existing crops for currently known highest and lowest groundwater levels.
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| * Calculate the yield loss for crops when using different groundwater level management strategies simulated by a Groundwater Overlay or a Subsidence Overlay.
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| * Determine the best type of crop per parcel given the highest and lowest groundwater levels and type of soil.
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| ==Considerations==
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| The Waterwijzer Overlay calculates yield loss for agriculture crops based on:
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| * A [[Climate_scenario_(Waterwijzer_Overlay)|climate scenario]];
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| * A [[Weather_station_(Waterwijzer_Overlay)|weather station]];
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| * [[Bofek_id_(Waterwijzer_Overlay)|Type of soil]];
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| * [[Brp_code_(Waterwijzer_Overlay)|Type of crop]];
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| * [[High_ground_water_prequel_(Waterwijzer_Overlay)|Highest]] and [[Low_ground_water_prequel_(Waterwijzer_Overlay)|lowest]] (averaged) groundwater levels;
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| Additionally:
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| * The Overlay makes use specifically of version 2.0.0 of the [https://waterwijzerlandbouw.wur.nl/tool.html Waterwijzer tool].
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| * The irrigation parameter, which in the [https://waterwijzerlandbouw.wur.nl/tool.html Waterwijzer tool] is active for a number of the crop types, is currently not taken into account.
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| ==Result types==
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| The overlay offers multiple result types. Each result type expresses the yield loss due to specific circumstances as a percentage.
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| {{result types|suppresscategory=true|allowselflinks=true|
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| {{:Damage dry result type (Waterwijzer Overlay)}}
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| {{:Damage wet result type (Waterwijzer Overlay)}}
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| {{:Damage indirect result type (Waterwijzer Overlay)}}
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| {{:Damage salt result type (Waterwijzer Overlay)}}
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| {{:Damage total result type (Waterwijzer Overlay)}}
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| }}
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| <ul>
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| <li style = "display:inline-block">[[File:Waterwijzer_damage_dry.jpeg|200xpx]]</li>
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| <li style = "display:inline-block">[[File:Waterwijzer_damage_wet.jpeg|200xpx]]</li>
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| <li style = "display:inline-block">[[File:Waterwijzer_damage_indirect.jpeg|200xpx]]</li>
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| <li style = "display:inline-block">[[File:Waterwijzer_damage_salt.jpeg|200xpx]]</li>
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| <li style = "display:inline-block">[[File:Waterwijzer_damage_total.jpeg|200xpx]]</li>
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| </ul>
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| ==How-to's==
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| * [[How to add and remove an Overlay]]
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| * [[How to edit an overlay legend]]
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| * [[How to add the Waterwijzer Overlay]]
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| * [[How to configure the Waterwijzer Overlay to use groundwater results from other calculations]]
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| ==Module==
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| A Waterwijzer Overlay can be configured by opening the Waterwijzer Overlay Wizard. More in-depth information can be found under each of the categories below.
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| {{WaterwijzerOverlay model attribute nav}}
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| {{Overlay nav}}
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| [[Category:Overlays with result types]]
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The Waterwijzer functionality has been removed in 2025. Please contact Tygron for more information.