Global optimization for watershed model calibration

Author(s):  
Qingyun Duan
Author(s):  
Hoshin V. Gupta ◽  
Luis A. Bastidas ◽  
Jasper A. Vrugt ◽  
Soroosh Sorooshian

Author(s):  
Patrícia Porta Nova da Cruz ◽  
Timothy R. Green ◽  
Ricardo De Oliveira Figueiredo ◽  
Anderson Soares Pereira ◽  
Holm Kipka ◽  
...  

Southeastern Brazil has recently experienced drought conditions that have impacted watershed conservation and the management of water quality and quantity for agricultural and urban demands. The Ribeirão das Posses watershed is being monitored as a headwater of the Jaguarí River, which is one of the contributing rivers of the Cantareira Reservoir Complex in the state of São Paulo. The landscape has changed over the last century from native forests to more homogeneous vegetation for pastures, crops and some forest plantations of eucalyptus, which have cumulative impacts on water yield and quality. Currently, the Projeto Conservador das Águas (Water Conservationist Project) has planted small areas with native species vegetation in order to recover degraded areas. The objective of this study was to evaluate the quantity of water in the Ribeirão das Posses Basin by both measurements and by simulating hydrological responses. The Agricultural Ecosystem Services (AgES) watershed model was applied to simulate water movement and storage among land areas. The simulation period was from 2009 to 2014, because the daily streamflow and meteorological data were available for model calibration and testing. We discuss data input requirements, model calibration to fit measured streamflow, and sensitivity to spatially variable rainfall inputs. The calibrated model may be used to estimate streamflow during periods of missing data, and in the future to estimate impacts of land use changes on stream water quantity and quality. Such information can be used in programs of payments for ecosystem services.


2012 ◽  
Vol 48 (10) ◽  
Author(s):  
Katie Price ◽  
S. Thomas Purucker ◽  
Stephen R. Kraemer ◽  
Justin E. Babendreier

2006 ◽  
Vol 54 (11-12) ◽  
pp. 39-46 ◽  
Author(s):  
W.C. Liu ◽  
H.H. Chen ◽  
W.H. Hsieh ◽  
C.H. Chang

The Shihmen Reservoir, located in northern Taiwan, features the second storage volume of impoundments on the island. The watershed of the Shihmen Reservoir has been subjected to serious pollutants due to anthropogenic interference. This study applies a watershed model, BASINS, to simulate the flow and nutrients loads from the watershed. BASINS then drives the CE-QUAL-W2 model for water quality predictions in the reservoir. The watershed modelling results are compared with field data. They reveal that significant nutrient loads were generated from the watershed during storms. The model calibration and verification were achieved with water surface elevation, temperature, and water quality constituents including nutrients, dissolved oxygen, and chlorophyll a in the reservoir using the eutrophication model.


2006 ◽  
Vol 329 (1-2) ◽  
pp. 122-139 ◽  
Author(s):  
Brian E. Skahill ◽  
John Doherty

Sign in / Sign up

Export Citation Format

Share Document