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DEPARTMENT OFCSIRO PRIMARY INDUSTRIESATMOSPHERIC RESEARCH Options for Victorian Agriculture in a “New” Climate -a pilot study linking climate change scenario.

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Presentation on theme: "DEPARTMENT OFCSIRO PRIMARY INDUSTRIESATMOSPHERIC RESEARCH Options for Victorian Agriculture in a “New” Climate -a pilot study linking climate change scenario."— Presentation transcript:

1 DEPARTMENT OFCSIRO PRIMARY INDUSTRIESATMOSPHERIC RESEARCH Options for Victorian Agriculture in a “New” Climate -a pilot study linking climate change scenario modelling and land suitability modelling Bob Cechet, Adam Hood & Hemayet Hussain

2 Atmospheric Research Background Victorian Greenhouse Strategy Understand climate change impacts and develop adaptation options with sectors/community Funding - Ecological Sustainable Agriculture Initiative (DPI) - Greenhouse Policy Unit (DSE)

3 Atmospheric Research Land Suitability Framework Developed by United Nations F.A.O. Assesses suitability of land for specific use Assessment undertaken using spatial datasets for various elements based on a function of the interaction between them and/or through a multi-criteria analysis method

4 Atmospheric Research Land Suitability Analysis (LSA) Developed using ArcView Model Builder Uses discrete spatial datasets of soil, landscape and climate (within G.I.S. environment) Based on “expert systems” approach Easy to scale to regional/strategic levels Highly flexible (dependent on question being asked) Simple to manipulate/interrogate

5 Atmospheric Research Project Design

6 Atmospheric Research What is OzClim Based on NZ CLIMPACTS Climate scenario generator Explore ranges of climate change Link climate change with impact models PC based, GUI interface Easy to operate, quick to produce results

7 Atmospheric Research Finding the global warming (I.P.C.C.) Choose low emission scenario IS92c Choose low climate sensitivity Global Warming Concentrations (eg.CO 2 ) Emissions (eg.CO 2 ) 0.7 o C Year Global warming ( o C) o Year Global warming ( o C) o

8 Atmospheric Research Projected global average warming: 1.4ºC to 5.8ºC by 2100 (I.P.C.C. T.A.R., 2001)

9 Atmospheric Research Creating regional “patterns of change” YEAR Global Temperature ( o C) Point Temperature ( o C) / O C of GW

10 Atmospheric Research Base Climatology Result 2060 Global Warming X GW 2060 [1 o C – 3 o C] Regional pattern from GCM Future mean regional temperatures + =

11 Atmospheric Research Land Suitability Analysis (LSA) Incorporates Multiple Criteria Evaluation [MCE] (within G.I.S. environment) MCE improves spatial decision making when considering multiple objectives and conflicting preferences Analytical Hierarchy Process (AHP) is a MCE method that orders critical factors into a hierarchy of importance

12 Atmospheric Research Analytical Hierarchy Process (AHP) Construction of hierarchies; establishing priorities; ensuring logical consistency Improves representativeness as all factors do not have equal weighting of importance Allows criteria to “trade-off” with each other depending on importance weights

13 Atmospheric Research Analytical Hierarchy Process, showing the model used for high yield pasture: “(criteria weighting)”

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17 Atmospheric Research Assessment of Impacts (Summary of Outputs) –Series of specialist workshops developing awareness & building suitable commodity mode –Mapped commodity scenarios 2000, 2020 and 2050 Gippsland –cool climate grapes –high yield pasture –blue gum plantations for years Mallee (wheat)* Goulburn/Broken region (stone & pomme fruits)* –Economic and Social Implications* –Industry and Regional Adaptation Options* –Recommendations for further work on toolkit* *Work currently being undertaken

18 Graffiti on a billboard in Smith Street, Fitzroy.

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23 Atmospheric Research

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27 More… 8 GCM datasets, 2 regional models 6 climatic variables Export options Regions covered and higher resolution Links to impact models

28 Atmospheric Research Methodological Approach to Land Suitability Analysis


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