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Indicators of Catchment Condition in the Intensive Land Use Zone of Australia – Predicted 2050 salinity

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Research Data Australia2025-12-20 收录
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\n\nIt should be noted that this data is now dated!\n\nThe indicator reflects the probability that a catchment will develop a\nsignificant salinity problem at some future time or continue to expand in an\nexisting one.\n\nIt is an indicator of hydrologic disequilibrium and is relevant across a range\nof scales.\n\nThe 2050 predicted extent of salinity was modelled by various state and\nterritory agencies for the National Land and Water Resources Audit, 2001.\n\nDifferent methods were used to estimate the extent so this national view of\npredicted extent is not consistent and open to errors.\n\nMost catchments in Western Australiaas southwest are predicted to continue\nwith substantial salt areas to 2050.\n\nSome increases are predicted for the southeast coastal catchments.\n\nCatchments in Western Australia that are predicted to have increased salinity\nproblems are the Esperance Coast, Albany Coast, Denmark, Kent, Frankland,\nShannon, Warren, Donnelly, Blackwood, Busselton, Preston, Collie, Harvey,\nMurray, Avon, Swan Coast, Moore Hill River basins.\n\nThe extent of salinity in Tasmania and Queensland is predicted to decline\nslightly, with no new areas identified.\n\nIn South Australia, NSW and Victoria salinity is predicted to worsen,\nincluding more areas of catchments throughout the Murray-Darling Basin, in\nsouthwest Victoria and in the upper southeast of South Australia.\n\nIn Victoria the catchments predicted to have increased salinity are Millicent\nCoast, Glenelg, Portland Coast, Hopkins, Otway Coast, Lake Corangamite,\nBarwon, Moorabool, Werribee, Maribyrnong River basins.\n\nIn NSW the catchment with a predicted major increase in areas of salinisation\nis the Castlereagh.\n\nData are available as:\n\n * continental maps at 5km (0.05 deg) cell resolution for the ILZ;\n * spatial averages over CRES defined catchments (CRES, 2000) in the ILZ;\n * spatial averages over the AWRC river basins in the ILZ.\n\nSee [further metadata](http://data.daff.gov.au/anrdl/metadata_files/pa_iccilr9ab\n__05321axx.xml) for more detail.\n\n

需注意,本数据集现已过时! 该指标反映了某一流域在未来某个时段出现显著盐渍化问题,或现有盐渍化问题持续扩大的概率。其作为水文失衡的表征指标,适用于多种尺度的研究场景。 本数据集针对2050年的盐渍化影响范围预测结果,由澳大利亚各州及领地机构为2001年《国家土地与水资源审计》项目建模生成。由于采用了不同的估算方法,本次全国范围的盐渍化影响范围预测结果并不统一,且存在误差风险。 预计到2050年,西澳大利亚州西南部的多数流域仍将存在大面积盐渍化区域,东南部沿海流域的盐渍化范围预计将有所扩大。西澳大利亚州预计出现盐度问题加剧的流域包括:埃斯佩兰斯海岸(Esperance Coast)、奥尔巴尼海岸(Albany Coast)、丹尼姆(Denmark)、肯特(Kent)、弗兰克兰(Frankland)、香农(Shannon)、沃伦(Warren)、唐纳利(Donnelly)、布莱克伍德(Blackwood)、巴瑟尔顿(Busselton)、普雷斯顿(Preston)、科利(Collie)、哈维(Harvey)、默里(Murray)、阿冯(Avon)、天鹅海岸(Swan Coast)以及穆尔希尔河(Moore Hill River)流域。 塔斯马尼亚州与昆士兰州的盐渍化范围预计将小幅缩减,未发现新增盐渍化区域。南澳大利亚州、新南威尔士州(New South Wales,NSW)以及维多利亚州的盐渍化问题预计将加剧,涉及墨累-达令盆地(Murray-Darling Basin)内的更多流域、维多利亚州西南部以及南澳大利亚州东南部上游区域。 维多利亚州预计盐度问题加剧的流域包括:米利森特海岸(Millicent Coast)、格兰屏(Glenelg)、波特兰海岸(Portland Coast)、霍普金斯(Hopkins)、奥特韦海岸(Otway Coast)、科兰加米特湖(Lake Corangamite)、巴旺(Barwon)、穆拉布尔(Moorabool)、韦里比(Werribee)以及马里比永河(Maribyrnong River)流域。新南威尔士州预计盐渍化面积大幅增加的流域为卡斯尔雷(Castlereagh)流域。 本数据集可通过以下形式获取: * 针对内陆土地带(Intact Land Zone,ILZ)制作的分辨率为5km(0.05°)的大陆尺度栅格地图; * 针对ILZ内由CRES(2000)划定的流域进行空间平均得到的数据; * 针对ILZ内澳大利亚水资源委员会(Australian Water Resources Council,AWRC)划定的河流流域进行空间平均得到的数据。 详细信息请查阅[补充元数据](http://data.daff.gov.au/anrdl/metadata_files/pa_iccilr9ab__05321axx.xml)。
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