ED8B897451E0BACAE0532144CD9B7F88EnglishData Requests OfficerDepartment of Lands, Planning and EnvironmentGeospatial Services Unit (on behalf of department)Datarequests.DLPE@nt.gov.au2025-09-17AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile1.0 Katherine River Flood Study 20172017-11-09WRM Water & Environment (WRM) was engaged by the Northern Territory Department of Infrastructure, Planning and Logistics (DIPL) to update the flood study for the township of Katherine and the surrounds. The previous flood study was undertaken in 2000 (Water Studies, 2000a). This study has been prompted by advances in modelling technologies and the availability of recent topographic data.You are licensed to use the DENR geospatial products on the terms and conditions set out in: Creative Commons Attribution 4.0 International Public License (CC BY 4.0) at: creativecommons.org/licenses/by/4.0/legalcode If you do not agree to the terms and conditions you must not use the geospatial products. You are free to copy, communicate and adapt the licensed material, provided that you abide by the licence terms (including Attribution) and attribute the licensed material using the statement: Supplied by the Department of Environment and Natural Resources. Copyright Northern Territory Government.English-14.531496979273-14.374065422848132.184345958623132.3446565246432017-11-092017-11-09datasetnot knownComplete0not knownData of similar type have the same attribute structure.0not known10 metres grid was adopted for the Katherine Town Area to ensure a reasonable representation of the major drainage features. 25 metres grid was adopted for the Katherine Regional Area to ensure a reasonable representation of the major drainage features. 0not knownThe attribute information conforms to the Flood Spatial Data Specification Version 2 at time of capture. The template ensures consistent information is recorded and displayed on any platform.0The flood data was created by routing the 1 percent AEP and PMF design event discharges through a TUFLOW hydraulic model which uses a DEM, hydraulic structure data and design event discharges to determine the spatial extent of inundation, including flood levels, flood depths, water velocity and Depth x Velocity. Two hydraulic modelling were developed for the study area. A large scale (25 m grid) model covering the entire study area of 790 km2 (the regional model) from Nitmiluk (Katherine Gorge) to the north to the confluence of King River and Katherine River to the south. A finer scale model (10 m grid) covering the Katherine town area (the Katherine Town area model) from the intersection of Chambers Drive and Gorge Road to the north, to Murnburlu Road to the south. The raster outputs have also been vectorised and classified into the following flood classes for each flood level: Depth from 0.0 to 0.5 metres Depth from 0.5 to 1.2 metres Depth from 1.2 to 2.0 metres Depth greater than 2.0 metres Depth x velocity (DV) greater than 1m2/s Spatial data produced as part of the study was grouped into a geodatabase, which contains tables, rasters and feature class for this project. Vectors and rasters were stored directly in the geodatabase. The geodatabase represents a relationship between datasets to ensure spatial information, collected or produced as part of the study is recorded in a consistent format. This relationship between datasets is defined as a data model and it consists of inter-related tables, raster and vector products grouped by a study.