Data

CMIP5 SPI12 Drought Projections for Australia

Commonwealth Scientific and Industrial Research Organisation
Round, Vanessa ; Heady, Craig ; Kirono, Dewi
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.25919/qqfd-2z84&rft.title=CMIP5 SPI12 Drought Projections for Australia&rft.identifier=https://doi.org/10.25919/qqfd-2z84&rft.publisher=Commonwealth Scientific and Industrial Research Organisation&rft.description=This data contains projections of future change in Standardised Precipitation Index (SPI) defined drought and extreme drought metrics. Drought metrics include drought frequency, average drought duration, drought intensity and percent time spent in drought. The projected change represents change from the 20th century (1900-2005) to the 21st century (2006-2100). Projections are provided as the 10th, 50th and 90th percentile from a suite of 37 CMIP5 Global Climate Models (GCMs). Lineage: This data was derived from CMIP5 modelled rainfall data from 37 different GCMs. SPI is widely used to characterise drought. SPI12 is calculated by fitting a gamma distribution to each timeseries of 12-month aggregated rainfall and using this to transform/normalise the timeseries (SPI12). Further methodological description and definition of drought categories and metrics are described in Kirono et al. (2020). https://doi.org/10.1016/j.wace.2020.100280&rft.creator=Round, Vanessa &rft.creator=Heady, Craig &rft.creator=Kirono, Dewi &rft.date=2026&rft.edition=v2&rft.relation=https://www.sciencedirect.com/science/article/pii/S2212094720300645&rft.relation=https://nespclimate.com.au/wp-content/uploads/2021/04/ESCC_Drought-projections_Factsheet.pdf&rft.relation=https://nesp2climate.com.au/wp-content/uploads/2025/03/Regional-drought-projections-for-Australia-report-v7.pdf&rft.coverage=westlimit=109.4257; southlimit=-45.4886; eastlimit=156.8551; northlimit=-8.315900000000001; projection=WGS84&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=Data is accessible online and may be reused in accordance with licence conditions&rft_rights=All Rights (including copyright) CSIRO 2025.&rft_subject=drought&rft_subject=climate&rft_subject=climate projections&rft_subject=SPI&rft_subject=rainfall&rft_subject=Climate change processes&rft_subject=Climate change science&rft_subject=EARTH SCIENCES&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
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Data is accessible online and may be reused in accordance with licence conditions

All Rights (including copyright) CSIRO 2025.

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This data contains projections of future change in Standardised Precipitation Index (SPI) defined drought and extreme drought metrics. Drought metrics include drought frequency, average drought duration, drought intensity and percent time spent in drought. The projected change represents change from the 20th century (1900-2005) to the 21st century (2006-2100). Projections are provided as the 10th, 50th and 90th percentile from a suite of 37 CMIP5 Global Climate Models (GCMs).
Lineage: This data was derived from CMIP5 modelled rainfall data from 37 different GCMs. SPI is widely used to characterise drought. SPI12 is calculated by fitting a gamma distribution to each timeseries of 12-month aggregated rainfall and using this to transform/normalise the timeseries (SPI12). Further methodological description and definition of drought categories and metrics are described in Kirono et al. (2020). https://doi.org/10.1016/j.wace.2020.100280

Available: 2026-03-02

Data time period: 1900-01-01 to 2099-12-31

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156.8551,-8.3159 156.8551,-45.4886 109.4257,-45.4886 109.4257,-8.3159 156.8551,-8.3159

133.1404,-26.90225

Subjects
Climate Change Processes | Climate Change Science | Earth Sciences | SPI | climate | climate projections | drought | rainfall |

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Identifiers
ACN 633 798 857