IDEAS home Printed from https://ideas.repec.org/a/eee/ecomod/v208y2007i2p135-144.html
   My bibliography  Save this article

Comparing terrestrial carbon fluxes from the scale of a flux tower to the global scale

Author

Listed:
  • Sasai, T.
  • Okamoto, K.
  • Hiyama, T.
  • Yamaguchi, Y.

Abstract

There are a number of outstanding important issues in terms of estimating terrestrial carbon fluxes; one of these is the spatial scaling issue. The purpose of the present study is to document the spatial scaling effect in terms of the terrestrial carbon flux measured at the point-scale and satellite-driven modeling at the global scale. To achieve this, the biosphere model BEAMS was used at the point, regional, and global scales using the same model conditions and parameters; we then compared the BEAMS output for the three different scales and ground measurements. The three sets of results showed reasonably similar spatial and temporal patterns. Temporal variations in the estimated GPP at point-scale showed good agreement with the ground measurements (R2=0.84). The spatial distributions of the annual mean GPP and NPP at the regional-scale revealed high values over hilly areas and plateaus, gradually decreasing toward urban areas and high mountains. Ground-observed, point-scale, and regional-scale GPP values show almost identical seasonal patterns. The correlation coefficient for the regional-scale and global-scale monthly mean NPP values is 0.77. In particular, the NPP calculated at the different scales for three areas showed a strong correlation (R2=0.81). As ground measurements are strongly reflected in the output of the global-scale simulation, we conclude that model validation at the point-scale is important when performing global-scale simulations.

Suggested Citation

  • Sasai, T. & Okamoto, K. & Hiyama, T. & Yamaguchi, Y., 2007. "Comparing terrestrial carbon fluxes from the scale of a flux tower to the global scale," Ecological Modelling, Elsevier, vol. 208(2), pages 135-144.
    • Handle: RePEc:eee:ecomod:v:208:y:2007:i:2:p:135-144
    DOI: 10.1016/j.ecolmodel.2007.05.014
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0304380007002979
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.ecolmodel.2007.05.014?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Mekonnen, Zelalem A. & Grant, Robert F. & Schwalm, Christopher, 2016. "Sensitivity of modeled NEP to climate forcing and soil at site and regional scales: Implications for upscaling ecosystem models," Ecological Modelling, Elsevier, vol. 320(C), pages 241-257.
    2. Sasai, Takahiro & Nakai, Saori & Setoyama, Yuko & Ono, Keisuke & Kato, Soushi & Mano, Masayoshi & Murakami, Kazutaka & Miyata, Akira & Saigusa, Nobuko & Nemani, Ramakrishna R. & Nasahara, Kenlo N., 2012. "Analysis of the spatial variation in the net ecosystem production of rice paddy fields using the diagnostic biosphere model, BEAMS," Ecological Modelling, Elsevier, vol. 247(C), pages 175-189.
    3. Shi, Yusheng & Sasai, Takahiro & Yamaguchi, Yasushi, 2014. "Spatio-temporal evaluation of carbon emissions from biomass burning in Southeast Asia during the period 2001–2010," Ecological Modelling, Elsevier, vol. 272(C), pages 98-115.
    4. Yan, Hao & Wang, Shao-qiang & Billesbach, Dave & Oechel, Walter & Bohrer, Gil & Meyers, Tilden & Martin, Timothy A. & Matamala, Roser & Phillips, Richard P. & Rahman, Faiz & Yu, Qin & Shugart, Herman , 2015. "Improved global simulations of gross primary product based on a new definition of water stress factor and a separate treatment of C3 and C4 plants," Ecological Modelling, Elsevier, vol. 297(C), pages 42-59.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:ecomod:v:208:y:2007:i:2:p:135-144. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/ecological-modelling .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.