Discharge method (Watershed Overlay) - Revision history

Rudolf@tygron.nl at 11:50, 6 October 2020

2020-10-06T11:50:37Z

← Older revision		Revision as of 11:50, 6 October 2020
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	{{~~Overlay attribute~~		{{stub}}
	\|~~attribute~~=~~HEIGHT_MINIMA~~
	\|~~defaultvalue=0~~		The discharge method can be configured to the following settings:
	\|~~description=~~Restricted to absolute height data. Flow is directed to cells of lower height. For each local height minimum a watershed is created.		{\|class=wikitable
	\|~~attribute2=WATER_TERRAINS~~		! Option
	\|~~defaultvalue2=1~~		! Description
	\|~~description2=~~Restricted to directional data. Each water polygon starts as a unique discharge area.		\|-
	\|~~attribute3=SPECIFIC_AREAS~~		\| HEIGHT_MINIMA
	\|~~defaultvalue3=2~~		\| Restricted to absolute height data. Flow is directed to cells of lower height. For each local height minimum a watershed is created.
	\|~~description3=~~Restricted to directional data. Only water cells that intersect with a defined discharge area start as that discharge area. An additional step is added to the watershed algorithm, where discharge areas are expanded to include neighboring unassigned water cells. Discharge area can also expand to water cells that are connected by culverts. After this step, some water cells can still be unassigned. Depending on the option [[Discharge remaining water (Watershed Overlay)\|Discharge remaining water]], the remaining connected water cells are assigned to newly created discharge areas.		\|-
	}}		\| WATER_TERRAINS
			\| Restricted to directional data. Each water polygon starts as a unique discharge area.
			\|-
			\| SPECIFIC_AREAS
			\| Restricted to directional data. Only water cells that intersect with a defined discharge area start as that discharge area. An additional step is added to the watershed algorithm, where discharge areas are expanded to include neighboring unassigned water cells. Discharge area can also expand to water cells that are connected by culverts. After this step, some water cells can still be unassigned. Depending on the option [[Discharge remaining water (Watershed Overlay)\|Discharge remaining water]], the remaining connected water cells are assigned to newly created discharge areas.
			\|}

	~~==Notes=~~=		{{article end
			\|notes=
	* The HEIGHT-MINIMA option without the use of [[Discharge area (Watershed Overlay)\|discharge areas]] can quickly create too many watersheds.		* The HEIGHT-MINIMA option without the use of [[Discharge area (Watershed Overlay)\|discharge areas]] can quickly create too many watersheds.
			\|seealso=
	~~==See also=~~=		* [[Discharge area (Watershed Overlay)]]
	* [[~~Discharge_area_~~(~~Watershed_Overlay~~)~~\|Discharge areas~~]]		}}

Frank@tygron.nl at 08:35, 10 June 2020

2020-06-10T08:35:03Z

← Older revision		Revision as of 08:35, 10 June 2020
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	==Notes==		==Notes==
	* The HEIGHT-MINIMA option without the use of [[Discharge ~~Area~~ (Watershed Overlay)\|discharge areas]] can quickly create too many watersheds.		* The HEIGHT-MINIMA option without the use of [[Discharge area (Watershed Overlay)\|discharge areas]] can quickly create too many watersheds.

	==See also==		==See also==
	* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]		* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]

Frank@tygron.nl: /* Notes */

2020-06-10T08:34:48Z

Notes

← Older revision		Revision as of 08:34, 10 June 2020
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	==Notes==		==Notes==
	* The HEIGHT-MINIMA option can quickly create too many watersheds.		* The HEIGHT-MINIMA option without the use of [[Discharge Area (Watershed Overlay)\|discharge areas]] can quickly create too many watersheds.

	==See also==		==See also==
	* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]		* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]

Frank@tygron.nl at 08:33, 10 June 2020

2020-06-10T08:33:59Z

← Older revision		Revision as of 08:33, 10 June 2020
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	\|description3=Restricted to directional data. Only water cells that intersect with a defined discharge area start as that discharge area. An additional step is added to the watershed algorithm, where discharge areas are expanded to include neighboring unassigned water cells. Discharge area can also expand to water cells that are connected by culverts. After this step, some water cells can still be unassigned. Depending on the option [[Discharge remaining water (Watershed Overlay)\|Discharge remaining water]], the remaining connected water cells are assigned to newly created discharge areas.		\|description3=Restricted to directional data. Only water cells that intersect with a defined discharge area start as that discharge area. An additional step is added to the watershed algorithm, where discharge areas are expanded to include neighboring unassigned water cells. Discharge area can also expand to water cells that are connected by culverts. After this step, some water cells can still be unassigned. Depending on the option [[Discharge remaining water (Watershed Overlay)\|Discharge remaining water]], the remaining connected water cells are assigned to newly created discharge areas.
	}}		}}

			==Notes==
			* The HEIGHT-MINIMA option can quickly create too many watersheds.

	==See also==		==See also==
	* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]		* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]

Frank@tygron.nl at 08:32, 10 June 2020

2020-06-10T08:32:54Z

← Older revision		Revision as of 08:32, 10 June 2020
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	\|attribute=HEIGHT_MINIMA		\|attribute=HEIGHT_MINIMA
	\|defaultvalue=0		\|defaultvalue=0
	\|description=Restricted to absolute height data. Flow is directed to cells of lower height.		\|description=Restricted to absolute height data. Flow is directed to cells of lower height. For each local height minimum a watershed is created.
	\|attribute2=WATER_TERRAINS		\|attribute2=WATER_TERRAINS
	\|defaultvalue2=1		\|defaultvalue2=1

Frank@tygron.nl at 09:57, 9 June 2020

2020-06-09T09:57:51Z

← Older revision		Revision as of 09:57, 9 June 2020
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	\|attribute3=SPECIFIC_AREAS		\|attribute3=SPECIFIC_AREAS
	\|defaultvalue3=2		\|defaultvalue3=2
	\|description3=Restricted to directional data. Only water cells that intersect with a defined discharge area start as that discharge area. An additional step is added to the watershed algorithm, where discharge areas are expanded to include neighboring unassigned water cells. Discharge area can also expand ~~through~~ water cells that are connected by culverts. After this step, some water ~~steps~~ can still be ~~unasigned~~. Depending on the option [[Discharge remaining water (Watershed Overlay)\|Discharge remaining water]], the remaining connected water cells are assigned to newly created discharge areas.		\|description3=Restricted to directional data. Only water cells that intersect with a defined discharge area start as that discharge area. An additional step is added to the watershed algorithm, where discharge areas are expanded to include neighboring unassigned water cells. Discharge area can also expand to water cells that are connected by culverts. After this step, some water cells can still be unassigned. Depending on the option [[Discharge remaining water (Watershed Overlay)\|Discharge remaining water]], the remaining connected water cells are assigned to newly created discharge areas.
	}}		}}

	==See also==		==See also==
	* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]		* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]

Frank@tygron.nl at 09:56, 9 June 2020

2020-06-09T09:56:55Z

← Older revision		Revision as of 09:56, 9 June 2020
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	\|attribute3=SPECIFIC_AREAS		\|attribute3=SPECIFIC_AREAS
	\|defaultvalue3=2		\|defaultvalue3=2
	\|description3=Restricted to directional data. Only water cells that intersect with a defined discharge area start as that discharge area. An additional step is added to the algorithm, where discharge areas are expanded to include neighboring unassigned water cells. Discharge area can also expand through water cells that are connected by culverts. After this step, some water steps can still be unasigned. Depending on the option [[Discharge remaining water (Watershed Overlay)\|Discharge remaining water]], the remaining connected water cells are assigned to newly created discharge areas.		\|description3=Restricted to directional data. Only water cells that intersect with a defined discharge area start as that discharge area. An additional step is added to the watershed algorithm, where discharge areas are expanded to include neighboring unassigned water cells. Discharge area can also expand through water cells that are connected by culverts. After this step, some water steps can still be unasigned. Depending on the option [[Discharge remaining water (Watershed Overlay)\|Discharge remaining water]], the remaining connected water cells are assigned to newly created discharge areas.
	}}		}}

	==See also==		==See also==
	* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]		* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]

Frank@tygron.nl at 09:48, 9 June 2020

2020-06-09T09:48:51Z

← Older revision		Revision as of 09:48, 9 June 2020
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	\|attribute2=WATER_TERRAINS		\|attribute2=WATER_TERRAINS
	\|defaultvalue2=1		\|defaultvalue2=1
	\|description2=Restricted to directional data. Each water ~~body~~ starts as a unique discharge area.		\|description2=Restricted to directional data. Each water polygon starts as a unique discharge area.
	\|attribute3=SPECIFIC_AREAS		\|attribute3=SPECIFIC_AREAS
	\|defaultvalue3=2		\|defaultvalue3=2
	\|description3=Restricted to directional data. ~~Water body~~ cells that intersect with a ~~specified~~ discharge area are ~~assigned~~ to ~~that~~ area~~. Water bodies~~ that are connected by culverts ~~to discharge area~~ water ~~bodies are assigned to that discharge area as well~~. Depending on the option [[Discharge remaining water (Watershed Overlay)\|Discharge remaining water]], the remaining water ~~bodies~~ are ~~stored as a separate~~ discharge ~~area~~.		\|description3=Restricted to directional data. Only water cells that intersect with a defined discharge area start as that discharge area. An additional step is added to the algorithm, where discharge areas are expanded to include neighboring unassigned water cells. Discharge area can also expand through water cells that are connected by culverts. After this step, some water steps can still be unasigned. Depending on the option [[Discharge remaining water (Watershed Overlay)\|Discharge remaining water]], the remaining connected water cells are assigned to newly created discharge areas.
	}}		}}

	==See also==		==See also==
	* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]		* [[Discharge_area_(Watershed_Overlay)\|Discharge areas]]

Frank@tygron.nl at 09:44, 9 June 2020

2020-06-09T09:44:04Z

← Older revision		Revision as of 09:44, 9 June 2020
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	\|attribute=HEIGHT_MINIMA		\|attribute=HEIGHT_MINIMA
	\|defaultvalue=0		\|defaultvalue=0
	\|description=Restricted to absolute height data		\|description=Restricted to absolute height data. Flow is directed to cells of lower height.
	\|attribute2=WATER_TERRAINS		\|attribute2=WATER_TERRAINS
	\|defaultvalue2=1		\|defaultvalue2=1

Frank@tygron.nl at 09:42, 9 June 2020

2020-06-09T09:42:59Z

← Older revision		Revision as of 09:42, 9 June 2020
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	\|attribute=HEIGHT_MINIMA		\|attribute=HEIGHT_MINIMA
	\|defaultvalue=0		\|defaultvalue=0
	\|description=Restricted to height ~~map input~~ data		\|description=Restricted to absolute height data
	\|attribute2=WATER_TERRAINS		\|attribute2=WATER_TERRAINS
	\|defaultvalue2=1		\|defaultvalue2=1