NWS Calibration Workshop, LMRFC March, 2009 slide - 1

Sacramento ModelEffect of Parameters on Model Response

• Proper calibration of a conceptual model should result in parameters that cause model components to mimic processes they were designed to represent

• Requires– Knowledge of the model structure– Ability to isolate effects of each parameter

NWS Calibration Workshop, LMRFC March, 2009 slide - 2

Sacramento Model Calibration

• Each parameter is designed to represent a specific portion of the hydrograph under certain moisture conditions

• Concentrate on having each parameter serve its primary function rather than overall goodness of fit

NWS Calibration Workshop, LMRFC March, 2009 slide - 3

LZFPC

LZTWD

UZFPC

LZFSC

UZTWD

SURDROIMP

SUPPRI SUR

INF

NWS Calibration Workshop, LMRFC March, 2009 slide - 4

NWS Calibration Workshop, LMRFC March, 2009 slide - 5

NWS Calibration Workshop, LMRFC March, 2009 slide - 6

NWS Calibration Workshop, LMRFC March, 2009 slide - 7

NWS Calibration Workshop, LMRFC March, 2009 slide - 8

NWS Calibration Workshop, LMRFC March, 2009 slide - 9

NWS Calibration Workshop, LMRFC March, 2009 slide - 10

Sacramento Model – Parameter Effects

• Baseflow / Low Flow– LZPK,LZSK,LZFPM,LZFSM– PFREE, SIDE, RIVA, PCTIM

• Percolation– Primary: LZFSM,ZPERC,REXP– Secondary: LZFPM, LZTWM, UZFWM, LZSK

• Storm Runoff– UZFWM, UZK, ADIMP

• Evaporation / Soil - Moisture Deficits– UZTWM, LZTWM, PE Adjustment Curve

NWS Calibration Workshop, LMRFC March, 2009 slide - 11

NWS Calibration Workshop, LMRFC March, 2009 slide - 12

NWS Calibration Workshop, LMRFC March, 2009 slide - 13

NWS Calibration Workshop, LMRFC March, 2009 slide - 14

NWS Calibration Workshop, LMRFC March, 2009 slide - 15

NWS Calibration Workshop, LMRFC March, 2009 slide - 16

NWS Calibration Workshop, LMRFC March, 2009 slide - 17

NWS Calibration Workshop, LMRFC March, 2009 slide - 18

NWS Calibration Workshop, LMRFC March, 2009 slide - 19

NWS Calibration Workshop, LMRFC March, 2009 slide - 20

NWS Calibration Workshop, LMRFC March, 2009 slide - 21

NWS Calibration Workshop, LMRFC March, 2009 slide - 22

NWS Calibration Workshop, LMRFC March, 2009 slide - 23

NWS Calibration Workshop, LMRFC March, 2009 slide - 24

NWS Calibration Workshop, LMRFC March, 2009 slide - 25

NWS Calibration Workshop, LMRFC March, 2009 slide - 26

NWS Calibration Workshop, LMRFC March, 2009 slide - 27

NWS Calibration Workshop, LMRFC March, 2009 slide - 28

NWS Calibration Workshop, LMRFC March, 2009 slide - 29

NWS Calibration Workshop, LMRFC March, 2009 slide - 30

NWS Calibration Workshop, LMRFC March, 2009 slide - 31

NWS Calibration Workshop, LMRFC March, 2009 slide - 32

NWS Calibration Workshop, LMRFC March, 2009 slide - 33

NWS Calibration Workshop, LMRFC March, 2009 slide - 34