Climate data and their characterisation for hydrological and agricultural scenario modelling across the Fitzroy, Darwin and Mitchell catchments

[摘要] Climate variables, water availability and soil data, are generally considered to be the most important environmental information for determining the agricultural suitability of particular locations. Equivalent sized catchments in south-eastern Australia have about ten times more climate stations than those of northern Australia’s Fitzroy, Darwin and Mitchell catchments. While this reduces the certainty of hydrological modelling, the density of rainfall stations in the three study areas is considered adequate for the purpose of water resource planning. A consistent set of historical climate data for the Assessment were assembled from daily gridded climate data. After consideration of paleo-climate studies, rainfall trends and future global climate model pattern scaled (GCM-PS) rainfall projections, a climate baseline from 1 September 1890 to 31 August 2015 was adopted. This follows the general principle that hydrological planning should use as long a hydroclimate sequence as possible to encapsulate the range of likely/plausible conditions and variability at different time scales. In collating and analysing the climate data for use by the Assessment’s numerical models, climate statistics and maps were prepared for the Fitzroy, Darwin and Mitchell catchments and are presented herein.

[发布日期] 2016-12-14 [发布机构] CSIRO

[学科分类] 地球科学(综合)