【国家级精品课程】华东师范大学-《全球变化(Glbal Change)》-3. The PPT Dr.pptx

Rivers and Estuaries:An Australian and Chinese PerspectiveBrian FinlaysonGeography ProgramSchool of Social and Environmental EnquiryThe University of MelbourneAustralia and China: similarities differencesAreaPopulationClimateTopographyHistory of settlementClimateK?ppen world map – source of map and dataPeel MC, Finlayson BL McMahon TA, 2007. Updated world map of the K?ppen-Geiger climate classification. Hydrology and Earth Systems Sciences 11: 1633-1644. /11/issue5.html/11/issue5.html Here you can download the paper, copies of the map in ARC View format and the complete data set from which the map was drawnTopographyTopographyHypsometric curvesSettlement of AustraliaAborigines arrived 40 – 60 thousand years BPEuropeans arrived 200 years BPWhy didn’t the aboriginals develop a more technically based culture?VariabilityLack of natural botanical resourcesWhat does this mean for rivers and estuaries? “Running to waste in the sea” - divert the coastal rivers inlandThe Snowy Mountains SchemeThe Snowy River at Dalgety in 1920The Snowy River at Dalgety in 1992Snowy River GorgeSnowy River FloodplainSnowy River EstuarySnowy River EstuarySnowy River EstuaryHolocene Coastal Barrier SystemThe mouth of the Murray - Australia’s largest riverGlobal Patterns of Suspended Sediment YieldChannel ConnectivityThe end of a disconnected channelPutting it all together – climate and topographyChinaAustraliaTalk about the background to this map and why it is important to draw an up-to-date version. This is the first drawn since 1923. Use by modellers.Explain these and their relation to topography and sediment yield and draw an Australia-China version on the whiteboard.Compare this with China as discussedThe upper catchment and gauging sitesNote here that there is a build up at the mouth of sediment from the east but the predominant movement at the annual scale is west to eastArthur Mostead??Note that the Australian yields are made up – there is no dataThe Chinese yields go up to 20,000 t/k