Managed aquifer recharge opportunity mapping in the Fitzroy, Darwin and Mitchell catchments generated by the Northern Australia Water Resource Assessment

The regional-scale MAR opportunity assessment represents a pre-feasibility assessment and consists of two components: (i) regional-scale opportunity mapping and (ii) MAR guidelines for entry level assessment in the most promising area for MAR. This pre-feasibility assessment identifies promising areas for MAR and describes the nature of investigations required to provide data that would support a feasibility assessment of a specific MAR scheme. The key output of the MAR regional-scale opportunity assessment is a series of regional-scale MAR opportunity maps for each of the three study areas to identify the most promising locations for MAR.\nLineage: This assessment of MAR opportunities in surficial aquifers to support agricultural development in Northern Australia identified areas based on characteristics of the surficial geology, topography, and gridded estimates of regolith thickness and soil permeability. Areas that met the constraint criteria (suitable geology, slope 10m, permeability >0.05 m/d) were categorised according to slope and soil permeability. A range of data sources were used across the three catchment regions as detailed in Table 4-2 in Section 4 of the project technical report that also describes the analysis methods in detail:\nVanderzalm JL, Page DW, Gonzalez D, Barry KE, Dillon PJ, Taylor AR, Dawes WR, Cui T and Knapton A (2018) Assessment of managed aquifer recharge (MAR) opportunities in the Fitzroy, Darwin and Mitchell catchments. A technical report to the Australian Government from the CSIRO Northern Australia Water Resource Assessment, part of the National Water Infrastructure Development Fund: Water Resource Assessments. CSIRO, Australia.

区域尺度含水层人工补给（Managed Aquifer Recharge, MAR）潜力评估属于预可行性研究范畴，包含两项核心内容：（1）区域尺度潜力制图；（2）面向最具开发潜力区域的MAR入门级评估指南。
该预可行性研究可甄别具备MAR开发潜力的区域，并明确为支撑特定MAR项目可行性评估所需开展的调查工作方向与内容。本次区域尺度MAR潜力评估的核心产出，是为三个研究区域分别生成一套区域尺度MAR潜力分布图，用于锁定最具开发价值的MAR布设点位。

数据集溯源：本次为支撑澳大利亚北部农业发展开展的浅层含水层MAR潜力评估，以表层地质特征、地形条件、栅格化风化层厚度估算值及土壤渗透率为筛选依据。满足约束条件（适宜地质条件、坡度10m、渗透率＞0.05 m/d）的区域，将依据坡度与土壤渗透率进行分类。本次评估在三个流域范围内采用了多源数据，相关细节及完整分析方法说明均载于项目技术报告第4章节的表4-2中：
Vanderzalm JL、Page DW、Gonzalez D、Barry KE、Dillon PJ、Taylor AR、Dawes WR、Cui T及Knapton A（2018）：《菲茨罗伊、达尔文与米切尔流域含水层人工补给（MAR）潜力评估》。澳大利亚联邦科学与工业研究组织（CSIRO）北部澳大利亚水资源评估项目提交给澳大利亚政府的技术报告，隶属于《国家水基础设施发展基金：水资源评估》系列，澳大利亚CSIRO出版。