Difference between revisions of "General/PreprocessingOfLandUseData/hydrology/en"

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= Aufbereitung des Landnutzungsplans =
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= Pre-Processing of Land Use Data  =
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Die Landnutzung im Einzugsgebiet ist entscheidend zur Ableitung der Parameter des Versiegelungsgrades und der Vegetationsdaten. Ziel ist es unter Einbezug der Teilgebiets- und Bodendaten sogenannte Hydrotope (Flächen gleicher hydrologischer Eigenschaften) zu bilden und einen Parameterkatalog aufzustellen, welcher einer dem Hydrotop zugeordneten Landnutzung die weiteren Eigenschaften zuweist.
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Land use in the catchment area is crucial for deriving the parameters of the degree of sealing and vegetation data. The aim is to make known the inclusion of sub-catchment- and soil data hydrotope (which has identical hydrological characteristics) and draw up a parameter catalogue, which defines the associated land use data to the hydrotope properties.  
  
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Zunächst sind die auftretenden Landnutzungen in Versiegelungsklassen einzuteilen (siehe Tabelle ''Beispiel der Versiegelungsklassen''), welche die im Modellgebiet vorhandenen Landnutzungen zu Klassen gleicher Versiegelung gruppieren (z.B. Wald, Industrie, Einzelhausbebauung). Jede Versiegelungsklasse verfügt über einen Versiegelungsgrad, welcher für jedes Teilgebiet oder für jedes Landnutzungspolygon mit einem Faktor korrigiert werden kann. Durch den Versiegelungsgrad, bzw. den evtl. zusätzlich gesetzten Korrekturfaktor der Versiegelung wird jedes Hydrotop in einen natürlichen und versiegelten Flächenanteil untergliedert, welches bei der Modellberechnung unterschiedliche Abflussbildungsprozesse bewirkt.
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First, the land use type must be classified in sealing classes (see Table of ''The sealing classes''), which divides the existing model in the field of land use to classes of the same sealing (as forest, industrial, single family homes). Every sealing class has a degree of sealing, which can be corrected for each sub catchment or for each land use polygon by a factor. By the degree of sealing, or possibly the correction factor, each hydrotope is subdivided into a natural and sealed area ratio, which causes different run off generation processes in the model calculation.
  
 
<div style="float:left; margin-right:1em">
 
<div style="float:left; margin-right:1em">
 
{| class="wikitable" width="400"
 
{| class="wikitable" width="400"
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|colspan="4" style="text-align:center" | '''Beispiel der Versiegelungsklassen'''
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|colspan="4" style="text-align:center" | '''Sealing classes '''
 
|- style="text-align:center"
 
|- style="text-align:center"
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|width="50%"| '''Nutzungstyp'''  
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|width="50%"| '''Land Use Type '''  
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|width="16.67%" | '''Klasse'''
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|width="16.67%" | '''Class '''
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|colspan="2" style="text-align:center; width:33.33%" | '''Effektiver Versiegelungsgrad*'''
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|colspan="2" style="text-align:center; width:33.33%" | '''Effective Sealing degree*'''
 
|-style="text-align:center"
 
|-style="text-align:center"
 
| || ||'''[%]''' ||'''[-]'''
 
| || ||'''[%]''' ||'''[-]'''
 
|-
 
|-
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|Einzelhaus||1||27,8||0,278
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|Single House||1||27,8||0,278
 
|-
 
|-
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|Neue Zeilenbebauung||2||40,8||0,408
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|New Row Buildings||2||40,8||0,408
 
|-
 
|-
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|Hochhaus||3||50,3||0,503
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|Sky scrapper||3||50,3||0,503
 
|-
 
|-
 
|Neue Randbebauung||4||60,6||0,606
 
|Neue Randbebauung||4||60,6||0,606
 
|-
 
|-
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|Blockbebauung mit Neubauten||5||80,8||0,808
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|Block houses||5||80,8||0,808
 
|-
 
|-
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|Große Bildungseinrichtungen||6||59,0||0,59
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|Large educational Institution||6||59,0||0,59
 
|-
 
|-
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|Verwaltung||7||78,2||0,782
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|Management ||7||78,2||0,782
 
|-
 
|-
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|Industrie||8||70,8||0,708
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|Industry||8||70,8||0,708
 
|-
 
|-
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|Sonstiges Gewerbe||9||72,9||0,729
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|Other Commercial Sites||9||72,9||0,729
 
|-
 
|-
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|Sportanlagen, Deichanlagen||10||35,6||0,356
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|Sport facilities , dikes||10||35,6||0,356
 
|-
 
|-
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|Schienenverkehrsflächen||11||13,7||0,137
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|Rail transport ||11||13,7||0,137
 
|-
 
|-
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|Grün- und Parkanlagen||12||19,6||0,196
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|Green and Parks ||12||19,6||0,196
 
|-
 
|-
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|Kleingartenanlagen||13||2,9||0,029
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|Allotments||13||2,9||0,029
 
|-
 
|-
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|Acker- und Grünland||14||0,0||0
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|Arable grassland ||14||0,0||0
 
|-
 
|-
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|Grünland||15||0,0||0
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|Grassland ||15||0,0||0
 
|-
 
|-
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|Laubwald||16||0,0||0
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|Deciduous Forest||16||0,0||0
 
|-
 
|-
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|Mischwald||17||0,0||0
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|Mixed Forest||17||0,0||0
 
|-
 
|-
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|Wasserflächen||18||0,0||0
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|Water Areas||18||0,0||0
 
|-
 
|-
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|Straßen und Plätze||19||95,0||0,95
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|Streets and Squares||19||95,0||0,95
 
|-
 
|-
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|Nutzung unbekannt||20||56,1||0,561
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|Nutzung unbekannt / Unknown land use||20||56,1||0,561
 
|-
 
|-
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|Wege||21||0,0||0
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|Roads||21||0,0||0
 
|-
 
|-
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|Wasserflächen RHB's||22||100,0||1
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|Water Areas  RHB's||22||100,0||1
 
|-
 
|-
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|Nadelwald||23||0,0||0
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|Coniferous Forest ||23||0,0||0
 
|-
 
|-
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|Gehölz, Gebüsch||24||0,0||0
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|Wood, bushes ||24||0,0||0
 
|-
 
|-
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|Flughafengelände||25||40,8||0,408
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|Airport  areas/runways ||25||40,8||0,408
 
|}
 
|}
 
</div>
 
</div>
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<div style="float:left">
 
<div style="float:left">
 
{|class="wikitable" width="300"
 
{|class="wikitable" width="300"
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|colspan="4" style="text-align:center" | '''Beispiel der Vegetationsklassen'''
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|colspan="4" style="text-align:center" | '''Examples of Vegetation Classes'''
 
|- style="text-align:center"
 
|- style="text-align:center"
 
|width="80%"| '''Vegetation'''  
 
|width="80%"| '''Vegetation'''  
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|width="20%" | '''Klasse'''
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|width="20%" | '''Class'''
 
|-
 
|-
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| Bebauung || 1
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| Buildings  || 1
 
|-
 
|-
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| Straßen und Wege|| 2
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| Streets and Roads || 2
 
|-
 
|-
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| Mischwald (nach ''DISSE'' und ''DVWK'')|| 3
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| Mixed forest(according to ''DISSE'' and ''DVWK'')|| 3
 
|-
 
|-
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| Acker (nach ''DISSE'', s 90)|| 4
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| Open Fields (According to ''DISSE'', s 90)|| 4
 
|-
 
|-
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| Laubwald|| 5
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| Deciduous forest || 5
 
|-
 
|-
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| Grünland (nach ''DISSE'' und ''DVWK'')|| 6
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| Grassland (according to ''DISSE'' und ''DVWK'')|| 6
 
|-
 
|-
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| Nadelwald|| 7
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| Coniferous forest|| 7
 
|-
 
|-
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| Gewässer || 8
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| Water Areas || 8
 
|}
 
|}
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'*Die Versieglungsgrade wurden mit dem Methode von Berlekamp und Pranzas (1992) abgeleitet.
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'** The sealing levels were derived using the method of Berlekamp and Pranzas (1992)..
 
</div>
 
</div>
  
 
[[Category:Hydrology/en]]
 
[[Category:Hydrology/en]]
 
{{Languages|Contents/hydrology}}
 
{{Languages|Contents/hydrology}}

Latest revision as of 22:06, 8 November 2016

[edit] Pre-Processing of Land Use Data

Land use in the catchment area is crucial for deriving the parameters of the degree of sealing and vegetation data. The aim is to make known the inclusion of sub-catchment- and soil data hydrotope (which has identical hydrological characteristics) and draw up a parameter catalogue, which defines the associated land use data to the hydrotope properties.

First, the land use type must be classified in sealing classes (see Table of The sealing classes), which divides the existing model in the field of land use to classes of the same sealing (as forest, industrial, single family homes). Every sealing class has a degree of sealing, which can be corrected for each sub catchment or for each land use polygon by a factor. By the degree of sealing, or possibly the correction factor, each hydrotope is subdivided into a natural and sealed area ratio, which causes different run off generation processes in the model calculation.

Sealing classes
Land Use Type Class Effective Sealing degree*
[%] [-]
Single House 1 27,8 0,278
New Row Buildings 2 40,8 0,408
Sky scrapper 3 50,3 0,503
Neue Randbebauung 4 60,6 0,606
Block houses 5 80,8 0,808
Large educational Institution 6 59,0 0,59
Management 7 78,2 0,782
Industry 8 70,8 0,708
Other Commercial Sites 9 72,9 0,729
Sport facilities , dikes 10 35,6 0,356
Rail transport 11 13,7 0,137
Green and Parks 12 19,6 0,196
Allotments 13 2,9 0,029
Arable grassland 14 0,0 0
Grassland 15 0,0 0
Deciduous Forest 16 0,0 0
Mixed Forest 17 0,0 0
Water Areas 18 0,0 0
Streets and Squares 19 95,0 0,95
Nutzung unbekannt / Unknown land use 20 56,1 0,561
Roads 21 0,0 0
Water Areas RHB's 22 100,0 1
Coniferous Forest 23 0,0 0
Wood, bushes 24 0,0 0
Airport areas/runways 25 40,8 0,408
Examples of Vegetation Classes
Vegetation Class
Buildings 1
Streets and Roads 2
Mixed forest(according to DISSE and DVWK) 3
Open Fields (According to DISSE, s 90) 4
Deciduous forest 5
Grassland (according to DISSE und DVWK) 6
Coniferous forest 7
Water Areas 8

'** The sealing levels were derived using the method of Berlekamp and Pranzas (1992)..

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