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The tropical zone furthest north in Australia would be transformed to grassland and/or desert.
The biomes/ climate zones in the south (southeastern temperate area, southwestern subtropical/mediterranean area) would be much larger, reaching further north on the continent, so desert and grassland in the southern half of the continent would be transformed by increased rain.
In sum, a much larger area would be temperate and wet, suitable for intensive farming. But tropical plants would more or less disappear from the north.
Last edited by Jakobsli; 11-02-2013 at 02:45 PM..
Reason: spelling
Would places like Hobart see snow every winter then?
It would on the 53rd parallel in this scenario, so probably southern enough for it to allow and larger parts of the continent would be in the 40th and 45th latitude then, probably southern enough to allow "local cooling" in the winter.
Location: The Valley Of The Sun just east of Canberra
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Although the adjacent inland would be wetter, Sydney and the coast would be a lot drier, because at 44S we'd be in the westerly belt most if not all of the year. Perversely this means our summers could be hotter since we'd be under continental airflow more often than not. Hobart is no comparison because it doesn't have as much land to its south and west. Not sure if we'd still get the SE'ly changes, they'd more likely be SW'ly which would result in some cooling though not much in midsummer.
I daresay the difference between Sydney and Melbourne would be even more marked than it is today. Perth would be one wet and windy place, in fact perhaps not too much warmer than Melbourne!
Southern Australia would be wetter, cloudier, snowier and windier than it currently is.
Inland Southeastern Australia in my opinion would see the most significant change Canberra for example would have much cooler winters maybe around 6c/-1c set up with constant frontal rain from the South-west, summers would be cooler around 23c. Snow may become common throughout this region though I'll probably be sporadic.
Melbourne would have a classic ocean climate similar to Invercargill but with slightly warmer summers and drier.
Sydney's climate would resemble current day Hobart's but with warmer summers and more variable temperatures year round. Sydney's winters will probably be damp, cool and breezy with a increased risk of frosty foggy mornings/days. Summers still acceptable. (25c/15c) and winters cool (10/0c)
Places further west (Adelaide, Albany, Perth etc) the drying trend would probably revert to a more evenly distributed rainfall pattern; Perth would be like Puerto Montt but with warmer summers, slightly drier year round and slightly milder winters, Adelaide similar to Dundedin but slightly warmer summers (22c/14c) and slightly wetter.
Inland Southwestern Australia may be similar to inland SE Australia.
Sydney will get a little bit of snow, like Hobart.
Hobart & Melbourne will be very snowy.
Alice Springs will still be hot and perhaps recording yearly mild snow since it's inland. Darwin will still be hot, but with cooler winters.
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