Reference: Commonwealth of Australia. Australian Bureau of Meteorology http://www.bom.gov.au/cgi-bin/climate/change/extremes/trendmaps.cgi?map=TN90&period=1960
Images are located at Commonwealth of Australia. Australian Bureau of Meteorology http://www.bom.gov.au/cgi-bin/climate/change/extremes/trendmaps.cgi?map=TN90&period=1960 The images were issued January 28, 2010. Image Permission: This work is copyrighted and unlicensed. However, it is believed that the use of this work to illustrate the subject in question, Where no free equivalent is available or could be created that would adequately give the same information, on Interlinked Challenges, hosted on servers in the United States by Michigan State University, qualifies as fair use under United States copyright law.