bryan-probabilisticdistributions-2005.pdf (216.69 kB)
Probabilistic distributions of regional climate change and their application in risk analysis of wheat production
journal contribution
posted on 2005-07-20, 00:00 authored by Q Luo, R N Jones, M Williams, Brett BryanBrett Bryan, W BellottiDownscaled outputs from 9 climate models and information from the 2000 Intergovernmental Panel on Climate Change (IPCC) Special Report on Emission Scenarios (SRES) were used to construct probability distributions of regional climate change for Roseworthy, South Australia. The construction of probability distribution for regional climate change involved the identification, quantification and treatment of uncertainties from greenhouse gas (GHG) emission scenarios, climate sensitivity and local climate change. Monte Carlo random sampling techniques were applied to component ranges of uncertainty defined by quantified upper and lower limits, assuming uniform probability over each range. Construction of resulting probability distributions of regional climate provided a framework for risk analysis. These probabilities were applied to the Agricultural Production System sIMulator (APSIM)-Wheat model to evaluate potential wheat production at Roseworthy for the year 2080 through the identification of critical yield thresholds. The conditional probability of not meeting the critical yield threshold increased from 27% under baseline conditions to 45% under the median probability for the year 2080, indicating less profitable wheat production in the study area.
History
Journal
Climate researchVolume
29Issue
1Pagination
41 - 52Publisher
Inter-ResearchLocation
Oldendorf, GermanyPublisher DOI
Link to full text
ISSN
0936-577XeISSN
1616-1572Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2005, Inter-ResearchUsage metrics
Keywords
Probability distribution functionsMonte Carlo random samplingUncertainty managementClimate changeAPSIM-Wheat modelRisk analysisWheat productionScience & TechnologyLife Sciences & BiomedicinePhysical SciencesEnvironmental SciencesMeteorology & Atmospheric SciencesEnvironmental Sciences & EcologyUNCERTAINTIESPROJECTIONSENSEMBLESYSTEMSAPSIMAtmospheric Sciences
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