Pacific GIS data

The Nature Repair Act 2023 (the Act), which took effect on 15 December 2023, establishes a framework for a legislated, national biodiversity market. The Act provides clear rules to ensure transparency and integrity, fostering collaboration to address environmental decline. The Nature Repair Market is a government scheme designed to deliver high-integrity biodiversity outcomes and increase investment in nature. This scheme establishes a marketplace where individuals and organisations can undertake nature repair projects to generate a tradable certificates. This dataset represents the eligible regions, defined as a subset of IBRA subregions, where biodiversity projects can be established under the Nature Repair (Replanting Native Forest and Woodland Ecosystems) methodology determination. These subregions include landscapes with intensive historical land use, where native vegetation has often been cleared or thinned. Remaining vegetation in these areas is frequently degraded by forestry and agriculture, impacted by pests and weeds, and affected by low levels of ecological connectivity.

The rivers of Australia and New Zealand dataset is derived from the World Wildlife Fund's (WWF) HydroSHEDS drainage direction layer and a stream network layer. The source of the drainage direction layer was the 15-second Digital Elevation Model (DEM) from NASA's Shuttle Radar Topographic Mission (SRTM). The raster stream network was determined by using the HydroSHEDS flow accumulation grid, with a threshold of about 1000 km² upstream area. The stream network dataset consists of the following information: the origin node of each arc in the network (FROM_NODE), the destination of each arc in the network (TO_NODE), the Strahler stream order of each arc in the network (STRAHLER), numerical code and name of the major basin that the arc falls within (MAJ_BAS and MAJ_NAME); - area of the major basin in square km that the arc falls within (MAJ_AREA); - numerical code and name of the sub-basin that the arc falls within (SUB_BAS and SUB_NAME); - area of the sub-basin in square km that the arc falls within (SUB_AREA); - numerical code of the sub-basin towards which the sub-basin flows that the arc falls within (TO_SUBBAS) (the codes -888 and -999 have been assigned respectively to internal sub-basins and to sub-basins draining into the sea). The attributes table now includes a field named "Regime" with tentative classification of perennial ("P") and intermittent ("I") streams. **Data publication:** 2014-03-05 **Supplemental Information:** This dataset is developed as part of a GIS-based information system on water resources for Australia and New Zealand. It has been published in the framework of the AQUASTAT - programme of the Land and Water Division of the Food and Agriculture Organization of the United Nations. **Contact points:** Resource Contact: [Jippe Hoogeveen](mailto:Jippe.Hoogeveen@fao.org) Resource Contact: [Livia Peiser](mailto:Livia.Peiser@fao.org) Metadata Contact: [AQUASTAT](mailto:aquastat@fao.org) **Data lineage:** The linework of the map was obtained by converting the stream network to a feature dataset with the Hydrology toolset in ESRI ArcGIS.The Flow Direction and Stream Order grids were derived from hydrologically corrected elevation data with a resolution of 15 arc-seconds.The elevation dataset was part of a mapping product, HydroSHEDS, developed by the Conservation Science Program of World Wildlife Fund.Original input data had been obtained during NASA's Shuttle Radar Topography Mission (SRTM). **Resource constraints:** This work is made available under the Creative Commons Attribution 4.0 International license (CC-BY-4.0) **Online resources:** Download - Rivers in Australia and New Zealand (ESRI shapefile) Technical information on the data source More updated information on HydroSHEDS 2025