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    Estimation of Actual Evapotranspiration by the Complementary Theory-Based Advection–Aridity Model in the Tarim River Basin, China

    Source: Journal of Hydrometeorology:;2017:;volume 019:;issue 002::page 289
    Author:
    Jian, Dongnan
    ,
    Li, Xiucang
    ,
    Sun, Hemin
    ,
    Tao, Hui
    ,
    Jiang, Tong
    ,
    Su, Buda
    ,
    Hartmann, Heike
    DOI: 10.1175/JHM-D-16-0189.1
    Publisher: American Meteorological Society
    Abstract: AbstractIn this study, the complementary relationship between actual evapotranspiration (ETa) and potential evapotranspiration (ETp) was verified in the Tarim River basin (TRB) in northwest China. The advection?aridity (AA) model that is based on the complementary relationship (CR) was used to calculate ETa. Spatial and temporal trends in the estimated annual ETa and the factors that influenced ETa were investigated. The multiyear average ETa in the TRB for the period from 1961 to 2014 was 178.5 mm. There was an overall significant increasing trend (at a rate of 10.6 mm decade?1) in ETa from 1961 to 2014; ETa increased at a rate of 22.9 mm decade?1 from 1961 to 1996 and decreased at a rate of 33.9 mm decade?1 from 1996 to 2014. Seasonally, ETa was strongest in summer, followed by spring and autumn. The spatial distributions of the annual and seasonal ETa were mostly consistent, with higher ETa values in the northeast, northwest, and southwest of the TRB, and lower ETa values in the mostly desert lands in the central and southeastern areas. While the energy budget (indicated by net radiation Rn) had little influence on ETa over time, the advection budget (indicated by the drying power of the air Ea) played an important role, explainable by Bouchet?s complementary relationship. In the Aksu River basin (ARB), ETa has increased because of an increase in the surface water supply (SWS). The change in ETa between 1996 and 1998 may have been caused by changes in the SWS and the advection budget during the same time period.
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      Estimation of Actual Evapotranspiration by the Complementary Theory-Based Advection–Aridity Model in the Tarim River Basin, China

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4260733
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    contributor authorJian, Dongnan
    contributor authorLi, Xiucang
    contributor authorSun, Hemin
    contributor authorTao, Hui
    contributor authorJiang, Tong
    contributor authorSu, Buda
    contributor authorHartmann, Heike
    date accessioned2019-09-19T10:01:38Z
    date available2019-09-19T10:01:38Z
    date copyright12/8/2017 12:00:00 AM
    date issued2017
    identifier otherjhm-d-16-0189.1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4260733
    description abstractAbstractIn this study, the complementary relationship between actual evapotranspiration (ETa) and potential evapotranspiration (ETp) was verified in the Tarim River basin (TRB) in northwest China. The advection?aridity (AA) model that is based on the complementary relationship (CR) was used to calculate ETa. Spatial and temporal trends in the estimated annual ETa and the factors that influenced ETa were investigated. The multiyear average ETa in the TRB for the period from 1961 to 2014 was 178.5 mm. There was an overall significant increasing trend (at a rate of 10.6 mm decade?1) in ETa from 1961 to 2014; ETa increased at a rate of 22.9 mm decade?1 from 1961 to 1996 and decreased at a rate of 33.9 mm decade?1 from 1996 to 2014. Seasonally, ETa was strongest in summer, followed by spring and autumn. The spatial distributions of the annual and seasonal ETa were mostly consistent, with higher ETa values in the northeast, northwest, and southwest of the TRB, and lower ETa values in the mostly desert lands in the central and southeastern areas. While the energy budget (indicated by net radiation Rn) had little influence on ETa over time, the advection budget (indicated by the drying power of the air Ea) played an important role, explainable by Bouchet?s complementary relationship. In the Aksu River basin (ARB), ETa has increased because of an increase in the surface water supply (SWS). The change in ETa between 1996 and 1998 may have been caused by changes in the SWS and the advection budget during the same time period.
    publisherAmerican Meteorological Society
    titleEstimation of Actual Evapotranspiration by the Complementary Theory-Based Advection–Aridity Model in the Tarim River Basin, China
    typeJournal Paper
    journal volume19
    journal issue2
    journal titleJournal of Hydrometeorology
    identifier doi10.1175/JHM-D-16-0189.1
    journal fristpage289
    journal lastpage303
    treeJournal of Hydrometeorology:;2017:;volume 019:;issue 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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