• Adam, J. C., , Haddeland I. , , Su F. , , and Lettenmaier D. P. , 2007: Simulation of reservoir influenced on annual and seasonal streamflow changes for the Lena, Yenisei, and Ob’ rivers. J. Geophys. Res., 112 , D24114. doi:10.1029/2007JD008525.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Alkama, R., and Coauthors, 2010: Global evaluation of the ISBA-TRIP continental hydrological system. Part I: Comparison to GRACE terrestrial water storage estimates and in situ river discharges. J. Hydrometeor., 11 , 583600.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Arora, V. K., , and Boer G. J. , 1999: A variable velocity flow routing algorithm for GCMs. J. Geophys. Res., 104 , 3096530979.

  • Arora, V. K., , Chiew F. H. S. , , and Grayson R. B. , 1999: A river flow routing scheme for general circulation models. J. Geophys. Res., 104 , 1434714357.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Broecker, W. S., , Peng T-H. , , Jouzel J. , , and Russell G. L. , 1990: The magnitude of global fresh-water transports of importance to ocean circulation. Climate Dyn., 4 , 7379.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Brown, J., , Ferrians O. J. Jr., , Heginbottom J. A. , , and Melnikov E. S. , 1998: Circum-arctic map of permafrost and ground ice conditions. National Snow and Ice Data Center/World Data Center for Glaciology, Boulder, CO, digital media. [Available online at http://nsidc.org/data/docs/fgdc/ggd318_map_circumarctic/index.html].

    • Search Google Scholar
    • Export Citation
  • Brutsaert, W., 2008: Long-term groundwater storage trends estimated from streamflow records: Climatic perspective. Water Resour. Res., 44 , W02409. doi:10.1029/2007WR006518.

    • Search Google Scholar
    • Export Citation
  • Cogley, J. G., 2003: GGHYDRO - Global Hydrographic Data, Release 2.3. Trent Tech. Note 2003-1, Department of Geography, Trent University, Peterborough, Canada, 11 pp. [Available online at http://people.trentu.ca/~gcogley/glaciology/index.htm].

    • Search Google Scholar
    • Export Citation
  • Decharme, B., , and Douville H. , 2006: Uncertainties in the GSWP-2 precipitation forcing and their impacts on regional and global hydrological simulations. Climate Dyn., 27 , 695713.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Decharme, B., , Douville H. , , Prigent C. , , Papa F. , , and Aires F. , 2008: A new river flooding scheme for global climate applications: Off-line evaluation over South America. J. Geophys. Res., 113 , D11110. doi:10.1029/2007JD009376.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Fan, Y., , Miguez-Macho G. , , Weaver C. P. , , Walko R. , , and Robock A. , 2007: Incorporating water table dynamics in climate modeling: 1. Water table observations and equilibrium water table simulations. J. Geophys. Res., 112 , D10125. doi:10.1029/2006JD008111.

    • Search Google Scholar
    • Export Citation
  • Hanasaki, N., , Kanae S. , , and Oki T. , 2006: A reservoir operation scheme for global river routing models. J. Hydrol., 327 , 2241.

  • Kilmjaninov, V., 2007: Hydrological conditions for actions on prevention of ice flooding on the Lena River. Extreme Hydrological Events: New Concepts for Security, O. F. Vasiliev et al., Eds., NATO Science Series, Vol. 78, 279–284.

    • Search Google Scholar
    • Export Citation
  • Kim, H., , Yeh P. J-F. , , Oki T. , , and Kanae S. , 2009: Role of rivers in the seasonal variations of terrestrial water storage over global basins. Geophys. Res. Lett., 36 , L17402. doi:10.1029/2009GL039006.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Kouraev, A., , Zakharova E. A. , , Samain O. , , Mognard-Campbell N. M. , , and Cazenave A. , 2004: Ob’ river discharge from TOPEX/Poseidon satellite altimetry (1992–2002). Remote Sens. Environ., 93 , 238245.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Lucas-Picher, P., , Arora V. K. , , Caya D. , , and Laprise R. , 2003: Implementation of a large-scale variable velocity flow routing algorithm in the Canadian Regional Climate Model (CRCM). Atmos.–Ocean, 41 , 139153.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • Miguez-Macho, G., , Fan Y. , , Weaver C. P. , , Walko R. , , and Robock A. , 2007: Incorporating water table dynamics in climate modeling: 2. Formulation, validation, and soil moisture simulation. J. Geophys. Res., 112 , D13108. doi:10.1029/2006JD008112.

    • Search Google Scholar
    • Export Citation
  • Oki, T., , and Sud Y. C. , 1998: Design of Total Runoff Integrating Pathways (TRIP)—A global river channel network. Earth Interactions, 2 .[Available online at http://EarthInteractions.org].

    • Search Google Scholar
    • Export Citation
  • Pachauri, R. K., , and Reisinger A. , Eds. 2007: Climate Change 2007: Synthesis Report. Cambridge University Press, 104 pp. [Available online at http://www.ipcc.ch].

    • Search Google Scholar
    • Export Citation
  • Sausen, R., , Schubert S. , , and Dümenil L. , 1994: A model of river runoff for use in coupled atmosphere-ocean models. J. Hydrol., 155 , 337352.

    • Crossref
    • Search Google Scholar
    • Export Citation
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 95 95 6
PDF Downloads 45 45 4

Global Evaluation of the ISBA-TRIP Continental Hydrological System. Part II: Uncertainties in River Routing Simulation Related to Flow Velocity and Groundwater Storage

View More View Less
  • 1 CNRM-GAME, Météo-France, and CNRS, Toulouse, France
  • | 2 CNRS/CNES/Université Toulouse 3, LEGOS/GOHS, Toulouse, France
© Get Permissions
Restricted access

Abstract

In the companion paper to this one (), the Interactions between Soil, Biosphere, and Atmosphere–Total Runoff Integrating Pathways (ISBA-TRIP) continental hydrological system of the Centre National de Recherches Météorologiques is evaluated by using river discharge measurements and terrestrial water storage (TWS) variations derived from three independent datasets of the Gravity Recovery and Climate Experiment (GRACE). One of the conclusions is that the river reservoir simulated by TRIP at the global scale seems to be one of the main sources of TWS and/or discharge errors. Here, the authors study these uncertainties in river routing processes, such as flow velocity and groundwater storage. For this purpose, a simple groundwater reservoir depending on a time delay factor and a variable streamflow velocity calculated via Manning’s formula are added to TRIP following the approach of Arora and Boer. The previous and the new TRIP are then compared, and two studies of the sensitivity to the groundwater time delay factor and to the flow velocity are performed. Using the same experiment design as in , the authors show that the effect of this flow velocity and of the groundwater time delay factor on the ISBA-TRIP simulation is potentially significant. Nevertheless, over tropical and temperate basins, a competition between the two processes implies a slight difference between the previous and the new TRIP compared to both the GRACE and the discharge signals. The global results underline that simulating a realistic streamflow velocity is a key process for global-scale application.

Corresponding author address: Bertrand Decharme, CNRM-GAME, Météo-France, and CNRS, URA 1357, 42 av. Gaspard Coriolis, 31057 Toulouse, France. Email: bertrand.decharme@cnrm.meteo.fr

Abstract

In the companion paper to this one (), the Interactions between Soil, Biosphere, and Atmosphere–Total Runoff Integrating Pathways (ISBA-TRIP) continental hydrological system of the Centre National de Recherches Météorologiques is evaluated by using river discharge measurements and terrestrial water storage (TWS) variations derived from three independent datasets of the Gravity Recovery and Climate Experiment (GRACE). One of the conclusions is that the river reservoir simulated by TRIP at the global scale seems to be one of the main sources of TWS and/or discharge errors. Here, the authors study these uncertainties in river routing processes, such as flow velocity and groundwater storage. For this purpose, a simple groundwater reservoir depending on a time delay factor and a variable streamflow velocity calculated via Manning’s formula are added to TRIP following the approach of Arora and Boer. The previous and the new TRIP are then compared, and two studies of the sensitivity to the groundwater time delay factor and to the flow velocity are performed. Using the same experiment design as in , the authors show that the effect of this flow velocity and of the groundwater time delay factor on the ISBA-TRIP simulation is potentially significant. Nevertheless, over tropical and temperate basins, a competition between the two processes implies a slight difference between the previous and the new TRIP compared to both the GRACE and the discharge signals. The global results underline that simulating a realistic streamflow velocity is a key process for global-scale application.

Corresponding author address: Bertrand Decharme, CNRM-GAME, Météo-France, and CNRS, URA 1357, 42 av. Gaspard Coriolis, 31057 Toulouse, France. Email: bertrand.decharme@cnrm.meteo.fr

Save