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Climate Change trends. Acknowledgement: Darren Ray, Senior Meteorologist Climate Services Bureau of Meteorology, SA Regional Office. Greenhouse gas levels are rising…. In the 1960’s Charles Keeling started measurements in Hawaii…
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Climate Change trends Acknowledgement: Darren Ray, Senior Meteorologist Climate Services Bureau of Meteorology, SA Regional Office
Greenhouse gas levels are rising… In the 1960’s Charles Keeling started measurements in Hawaii… Australian version run by the Bureau of Meteorology at Cape Grim (northwest Tasmania) since the 1970’s (measuring the cleanest air in the world!!) as part of a global program.
Forestry and land use change can be highly variable depending on the land clearing policies
Global - temperature rises are clear… Source: http://www.bom.gov.au/cgi-bin/climate/change/global/timeseries.cgi
Global - rainfall trend … (predictions are for wet areas to get wetter) Source: http://www.bom.gov.au/cgi-bin/climate/change/global/timeseries.cgi
Australia – temperature trend … Source: http://www.bom.gov.au/cgi-bin/climate/change/global/timeseries.cgi
South Australia – temperature trend … Source: http://www.bom.gov.au/ > Climate > Climate Change > Time series graphs
Cape Borda, KI – temperature trend … Source: http://www.bom.gov.au/ > Climate > Climate Change > Climate Change > High-quality climate site networks
Spatial warming trend (past 50 years) … Source: http://www.bom.gov.au/ > Climate > Climate Change > Trend maps
Drying trend southern & eastern Australia (past 40 years) Source: http://www.bom.gov.au/ > Climate > Climate Change > Trend maps
Decreasing number of wet days across southern SA … Source: http://www.bom.gov.au/ > Climate > Climate Change > Australian climate extremes - Trend maps
Summer 1950 to 2007 trends… Autumn http://www.new.dpi.vic.gov.au/agriculture/climate/understanding-weather-and-climate/climatedogs/enso/ Increased Summer and Spring rainfall - possibly from burning off in Indonesia Decreased Autumn /early Winter rainfall… particularly in Murray Darling catchment area Winter Spring
Further slides needed to discuss…. • Details of projections relevant to SA / KI • Details of climate change science & modelling