Publication Abstracts

Greene et al. 2015

Greene, A.M., L. Goddard, P.L.M. Gonzalez, A.V.M. Ines, and J. Chryssanthacopoulos, 2015: A climate generator for agricultural planning in southeastern South America. Agric. Forest Meteorol., 203, 217-228, doi:10.1016/j.agrformet.2015.01.008.

A method is described for the generation of climate scenarios in a form suitable for driving agricultural models. The scenarios are tailored to the region in southeastern South America bounded by 25-40° S, 45-65° W, denoted here as SESA. SESA has been characterized by increasing summer precipitation, particularly during the late 20th century, which, in the context of favorable market conditions, has enabled increases in agricultural production. Since about year 2000, however, the upward tendency appears to have slowed or possibly stopped, raising questions about future climate inputs to regional agricultural yields.

The method is not predictive in the deterministic sense, but rather attempts to characterize uncertainty in near-term future climate, taking into account both forced trends and unforced, natural climate fluctuations. It differs from typical downscaling methods in that GCM information is utilized only at the regional scale, subregional variability being modeled based on the observational record. Output, generated on the monthly time scale, is disaggregated to daily values with a weather generator and used to drive soybean yields in the crop model DSSAT-CSM, for which preliminary results are discussed. The simulations produced permit assessment of the interplay between long-range trends and near-term climate variability in terms of agricultural production.

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BibTeX Citation

@article{gr07010d,
  author={Greene, A. M. and Goddard, L. and Gonzalez, P. L. M. and Ines, A. V. M. and Chryssanthacopoulos, J.},
  title={A climate generator for agricultural planning in southeastern South America},
  year={2015},
  journal={Agric. Forest Meteorol.},
  volume={203},
  pages={217--228},
  doi={10.1016/j.agrformet.2015.01.008},
}

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RIS Citation

TY  - JOUR
ID  - gr07010d
AU  - Greene, A. M.
AU  - Goddard, L.
AU  - Gonzalez, P. L. M.
AU  - Ines, A. V. M.
AU  - Chryssanthacopoulos, J.
PY  - 2015
TI  - A climate generator for agricultural planning in southeastern South America
JA  - Agric. Forest Meteorol.
VL  - 203
SP  - 217
EP  - 228
DO  - 10.1016/j.agrformet.2015.01.008
ER  -

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