Abstract Vegetation information influences evapotranspiration (ET) and hence affects the hydrological cycle. Understanding the impact of biophysical variable such as Leaf Area Index (LAI) on watershed hydrology can clarify the water balance of a watershed. This study investigates the impact of vegetation information on ET, soil moisture, groundwater recharge and streamflow by using two different sources of spatial LAI data (Terra MODIS and NOAA AVHRR) in the calculation of FAO Penman-Monteith ET. For a 6661.3 km2 mountainous watershed in South Korea, the SLURP (Semi-distributed Land Use-based Runoff Processes) hydrological model was calibrated and verified based on 4 years MODIS LAI data with average Nash-Sutcliffe model efficiency of 0.67. The results indicate that the two watershed ETs vary within 4%, and the deciduous and coniferous ETs vary within 6.8% and 11.2% respectively. The two ETs affected maximum 2.4%, 6.1%, and 8.8% differences of soil moisture, groundwater recharge, and streamflow respectively.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Comparison of hydrological responses by two different satellite remotely sensed leaf area indices in a mountainous watershed of South Korea


    Beteiligte:
    Ha, Rim (Autor:in) / Shin, Hyung Jin (Autor:in) / Park, Min Ji (Autor:in) / Kim, Seong Joon (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    17.07.2010


    Format / Umfang :

    12 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Current navy applications of satellite remotely sensed data

    Crout, R.L. / Kent, C. | Tema Archiv | 2003


    India's first remotely-sensed satellite data from 'Bhaskara' using 'SAMIR'

    Calla, O.P.N. / Raju, G. / Rana, S.S. et al. | Tema Archiv | 1979


    Neural network methods for analysis of remotely sensed satellite data

    Kanellopoulos, I. | British Library Online Contents | 1992


    Digital Processing of Remotely Sensed Imagery

    Green, William B. | NTRS | 1997