EZG-File: Difference between revisions
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*'''R''': number of the [[TSIM.JGG | annual pattern]] to be utilized to scale the base flow ''(not used by soil moisture)'' | *'''R''': number of the [[TSIM.JGG | annual pattern]] to be utilized to scale the base flow ''(not used by soil moisture)'' | ||
<u> | <u>Calculation type 1: run-off coefficient method:</u> | ||
*'''S''': | *'''S''': run-off coefficient <code>(0 < ψ ≤ 1)</code> | ||
:<math>\psi = \frac{N_{eff} + E_T + h_v}{N}</math> | :<math>\psi = \frac{N_{eff} + E_T + h_v}{N}</math> | ||
: | :with: | ||
:<code>N<sub>eff</sub></code> = | :<code>N<sub>eff</sub></code>=effective rainfall | ||
:<code>E<sub>T</sub></code> = | :<code>E<sub>T</sub></code> = evaporation | ||
:<code>h<sub>v</sub></code> = | :<code>h<sub>v</sub></code> = initial losses (losses due to wetting and troughs) | ||
: | :also refer to http://de.wikipedia.org/wiki/Abflussbeiwert | ||
<u> | <u>Calculation type 2: SCS-Method:</u> | ||
:'' | :''refer to [[SCS-Verfahren|Theory:SCS-Method]]'' | ||
*'''T''': CN- | *'''T''': CN-Value <code>(0 < CN ≤ 100)</code> | ||
*'''U''': 21- | *'''U''': 21-Day prior rainfall height [mm] (''is distributed evenly over 21 days'') | ||
<u> | <u>Calculation type 3: soil moisture calculation:</u> | ||
:'' | :''refer to [[Bodenfeuchteberechnung|Theory: soil moisture calculation]]'' | ||
*'''V''': | *'''V''': initial soil moisture [% of field capacity] ''this value is overprinted by the global initial soil moisture specified in the [[ALL-Datei | ALL-File]].'' | ||
<u> | <u>Calculation type 4: specific discharge:</u> | ||
*'''Q1''': | *'''Q1''': constant specific discharge [m3/(s ha)] | ||
<u> | <u>Retention constant:</u> | ||
[[Bild:Retentionskonstanten.gif|thumb|{{:Literatur:Zaiß_1986|Berechnung der Retentionskonstanten}}]] | [[Bild:Retentionskonstanten.gif|thumb|{{:Literatur:Zaiß_1986|Berechnung der Retentionskonstanten}}]] | ||
[[Bild:Parallelspeicherkaskade_EZG.gif|thumb|Parallelspeicherkaskaden]] | [[Bild:Parallelspeicherkaskade_EZG.gif|thumb|Parallelspeicherkaskaden]] | ||
*'''R1''': | *'''R1''': manual input of the retention constants as well as the distribution factors [Y/N] <br/> | ||
*: | *:if No (<code>N</code>) the retention constants as well as the distribution factors are calculated internally according to {{:Literatur:Zaiß_1986|Zaiß}} on the basis of catchment characteristics anhand. The calculated parameters are written into the [[$LOG.TXT|Protocol-File]],if it's activated. | ||
*'''R2''': | *'''R2''': Retention constant of the sealed-off area cascade [h] | ||
*'''R3''': | *'''R3''': Retention constant of the fast cascade [h] | ||
*'''R4''': | *'''R4''': Retention constant of the slow cascade [h] | ||
*'''R5''': | *'''R5''': Retention constant of interflow [h] ''(only for soil moisture calculation)'' | ||
*'''R6''': | *'''R6''': Retention constant of base flow [h] ''(only for soil moisture calculation)'' | ||
*'''R7''': | *'''R7''': non-linear calculation [Y/N] | ||
*'''R8''': Exponent | *'''R8''': Exponent fot the non-linear calculation | ||
<u> | <u>Dstribution factors:</u><br/> | ||
Die Aufteilungsfaktoren Beta1 und Beta2 beziehen sich ''nur auf die unversiegelte Fläche''! | Die Aufteilungsfaktoren Beta1 und Beta2 beziehen sich ''nur auf die unversiegelte Fläche''! | ||
Revision as of 00:46, 1 February 2013
BlueM.Sim | Download | Application | Theory | Development
Input files · ALL SYS · FKT KTR · EXT JGG WGG TGG · TAL HYA TRS EIN URB VER RUE BEK EZG FKA · BOA BOD LNZ EFL · DIF
Rural catchment
also refer to Theory: Rural catchment
File
*Einzugsgebiete (*.EZG) *====================== *|------|-----|------------------------------|--------|------------------|------------------------|---------|-----|----------|-----|----------------------------------------------|--------------|-------------------------------------|--------------| *| Bez | KNG | Gebietskenngroessen | N | Verdunstung | Temperatur | QBASIS | PSI | SCS (2) | BF0 | Retentionskonstanten | Aufteilung | Schneekonstanten | QSpende | *| | | A VG Ho Hu L | Datei |Kng Sum Datei |Kng Tem JGG TGG Datei | qB JGG | (1) | CN VorRg| (3) | R K(VG) K1 K2 Int Bas nLin Expo| Beta1 Beta2 | R GrT NSchD GrD RateT RateSB | MQ | *|------|-----|------------------------------|--------|------------------|------------------------|---------|-----|----------|-----|----------------------------------------------|--------------|-------------------------------------|--------------| *| - | 1-4 | ha % muNN muNN m | Nummer |1/2 mm/a Nummer |1/2 °C - - Nummer |l/sqkm - | - | - mm | % | - h h h h h J/N - | - - | - °C % % mm/(°d) mm/d | m3/(s ha) | *|-<-->-|-<->-|<----><----><----><----><---->|<------>|-+-<---->-<------>|-+-<-->-<->-<->-<------>|<--->-<->|<--->|<---><--->|<--->|-+-<---->-<---->-<---->-<---->-<---->--+-<--->|-<---->-<---->|-+-<--->-<--->-<--->-<----->-<----->-|-<---------->-| | A | B | C D E F G | H | I J K | L M N O P | Q R | S | T U | V |R1 R2 R3 R4 R5 R6 R7 R8 | B1 B2 |S1 S2 S3 S4 S5 S6 | Q1 | *|------|-----|------------------------------|--------|------------------|------------------------|---------|-----|----------|-----|----------------------------------------------|--------------|-------------------------------------|--------------|
Explanations
Versionen:
- A: unique ID (must begin with 'A'!)
- B: calculation type [1-4] (see below). Refers to the non-sealed-off areas; the sealed-off areas are generally calculated with the same methods.
- C: area [ha]
- D: degree of sealed-off area [%]
- E: maximum height Höhe [müNN]
- F: minimum height [müNN]
- G: longest flow path [m]
Rainfall:
- H: Filenumber of the rainfall file (refer to *.EXT-File)
Evaporation:
- I: calculation type for the evaporation (1 = annual evaporation; 2 = evaporation out of a time series / file)
- J: annual evaporation [mm/a]
- If soil moisture calculation: the sum refering to grasland must be entered,which is internally overprinted with hydrographs accordint to Brandt[1] and Haude[2][3] and is adjusted to the land use in the individual hydrological response unit.
- K: filenumber of the evapotation time series to be utilized (refer to *.EXT-File)
- only daily values may be listed in the time series because the time series values are always additionally overprinted with a daily pattern! (Bug 1)
Temperature:
- L: calculation type for the temperature (1 = mean value with optional annual/ weekly/ daily pattern; 2 = temperature out of a time seres/ file)
- M: mean temperature [°C]
- N, O: number of the annual/ weekly/ daily patternto be utilized
- P: filenumber of the temperature time series to be utilized (refer to *.EXT-File)
Base flow:
- Q: constant base flow [l/s.km²]
- If soil moisture calculation this value only surves the purpose of calculating the initial reservoir content of the groundwater and interflow reservoirs:
S0,Basis = QB,0 × KBasis
S0,Interflow = QB,0 × KInterflow
- R: number of the annual pattern to be utilized to scale the base flow (not used by soil moisture)
Calculation type 1: run-off coefficient method:
- S: run-off coefficient
(0 < ψ ≤ 1)
- [math]\displaystyle{ \psi = \frac{N_{eff} + E_T + h_v}{N} }[/math]
- with:
Neff
=effective rainfallET
= evaporationhv
= initial losses (losses due to wetting and troughs)- also refer to http://de.wikipedia.org/wiki/Abflussbeiwert
Calculation type 2: SCS-Method:
- refer to Theory:SCS-Method
- T: CN-Value
(0 < CN ≤ 100)
- U: 21-Day prior rainfall height [mm] (is distributed evenly over 21 days)
Calculation type 3: soil moisture calculation:
- refer to Theory: soil moisture calculation
- V: initial soil moisture [% of field capacity] this value is overprinted by the global initial soil moisture specified in the ALL-File.
Calculation type 4: specific discharge:
- Q1: constant specific discharge [m3/(s ha)]
Retention constant:
- R1: manual input of the retention constants as well as the distribution factors [Y/N]
- if No (
N
) the retention constants as well as the distribution factors are calculated internally according to Zaiß[4] on the basis of catchment characteristics anhand. The calculated parameters are written into the Protocol-File,if it's activated.
- if No (
- R2: Retention constant of the sealed-off area cascade [h]
- R3: Retention constant of the fast cascade [h]
- R4: Retention constant of the slow cascade [h]
- R5: Retention constant of interflow [h] (only for soil moisture calculation)
- R6: Retention constant of base flow [h] (only for soil moisture calculation)
- R7: non-linear calculation [Y/N]
- R8: Exponent fot the non-linear calculation
Dstribution factors:
Die Aufteilungsfaktoren Beta1 und Beta2 beziehen sich nur auf die unversiegelte Fläche!
Die Summe dieser zwei Aufteilungsfaktoren muss 1 ergeben (β1 + β2 = 1
)!
- B1: Aufteilungsfaktor für die schnelle Kaskade
0 ≤ β1 ≤ 1
- B2: Aufteilungsfaktor für die langsame Kaskade
0 ≤ β2 ≤ 1
Der Aufteilungsfaktor β3
für die Kaskade der versiegelten Flächen bestimmt sich intern aus dem Versiegelungsgrad (D).
- Hinweis
- Die Angabe von Beta2 ist optional. Wenn nicht angegeben, errechnet er sich aus
β2 = 1. - β1
Schneekonstanten:
Für die Schneeberechnung wird das Snow-Compaction Verfahren nach Knauf[5] benutzt.
- S1: manuelle Eingabe der Schneekonstanten [J/N]
- (bei
N
oder wenn nicht vorhanden, werden die Standardparameter verwendet)
- (bei
- S2: Grenztemperatur zur Schneebildung [°C]
- S3: Neuschneedichte [%]
- S4: Grenzdichte, ab der Wasserabgabe beginnt [%]
- S5: temperaturabhängige Schmelzrate [mm/(K×d)]
- S6: Strahlungs u. Bodenwärme abhängige Schmelzrate [mm/d]
Wertebereiche und Standardwerte:
Parameter | Einheit | Standardwert | Wertebereich[5] |
---|---|---|---|
Grenztemperatur | °C | 0 | ? |
Neuschneedichte | % | 11 | 5 - 20 |
Grenzdichte | % | 40 | 40 - 45 |
temperaturabhängige Schmelzrate | mm/(K×d) | 1.8 | ? |
Strahlungs u. Bodenwärme abhängige Schmelzrate | mm/d | 4.2 | ? |
Abflussspende:
Konstante Abflussspende (Berechnungart = 4)
- Q1: Konstante Abflusspende [m3/(s ha)]
Literaturangaben
- ↑ Brandt, T. (1979): Modell zur Abflussgangliniensimulation unter Berücksichtigung des grundwasserbürtigen Abflusses, Technischer Bericht Nr. 24 aus dem Institut für Wasserbau, Fachgebiet Ingenieurhydrologie und Hydraulik der TH Darmstadt
- ↑ Haude, W. (1954): Zur praktischen Bestimmung der aktuellen und potentiellen Evapotranspiration. – Mitteilungen des DWD, Bd. 8; Bad Kissingen
- ↑ Haude, W. (1955): Zur Bestimmung der Verdunstung auf möglichst einfache Weise. Mitteilungen des DWD, 2 (11), Bad Kissingen
- ↑ 4.0 4.1 Zaiß, H. (1986): Abflussermittlung aus Teilflächen, in "Hydrologische Abflussmodelle in der praktischen Anwendung", 36. Fortbildungslehrgang des BWK-Hessen am 21. März 1986, Friedberg [ihwb-Bibliothek: Inv.-Nr. 5593, 10 BWK 36] PDF OCR
- ↑ 5.0 5.1 Knauf, D. (1980): Die Berechnung des Abflusses aus einer Schneedecke, in: DVWK-Schriften, Heft 46, Analyse und Berechnung oberirdischer Abflüsse PDF