4DC6BC7808739C83E040CD9B2144017CEnglishData Requests OfficerDepartment of Lands, Planning and EnvironmentGeospatial Services Unit (on behalf of department)Datarequests.DLPE@nt.gov.au2018-09-21AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile1.0 Katherine Design Flood Depth Datasets 20082008-05-22 A high resolution 1:5,000 scale dataset that details the extent and depth of flooding for a predetermined gauge height derived from hydrological/hydraulic modelling ( 2 D Quasi floodplain model) using topographical mapping (1:5,000 NT Lands Survey Branch) and flood event flow datasets. The mapping dataset is displayed over a topographic/cadastral base and is mainly used for emergency services purposes for the Katherine area. Mapping products produced from these datasets are at scales of 1:20,000 for the Katherine Town Area and 1:50,000 for the Katherine Rural Area at gauge heights of G14.5m, G15.0m, G15.6m, G16.0m, G16.5m, G17.0m, G17.5m, G18.0m, G18.5m, G19.0m, G19.5m, G21.5m and G23.12m. Maps showing probable and possible areas of flooding for Katherine Flood Warning Advisory, Category 1, 2 and 3. Download the spatial data package (contains spatial data, maps and reports) via https://data.nt.gov.au/ 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: https://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-14.595974-14.282584132.066966132.4771372008-01-312008-04-23datasetnot knownJudged complete at this stage - spatial and attribute verification of the dataset has been performed.0not knownGIS editing tools were used to rectify all overshoots and undershoots in linework. Dataset consistency has been manually checked and all classified for surfacewater height.0not knownHorizontal Accuracy: Expected accuracy of well defines detail is within 0.5mm at photoimage scale. (2.5m on map). Vertical Accuracy: 90% of elevations are correct to within one half the contour interval at source map scale (0.5m on map)0not knownHigh - The accuracy of the attribute information is considered high and conforms to guidlines as per 'Best Practice Principles and Guidelines for Floodplain Management in Australia, CSIRO (2000).0BIBILIOGRAPHY - The data is a product of the Katherine River Flood Model developed by Coffey Water Studies (Report No. 02/2000D) in 2000 and revised in September 2003 by Water Studies Pty Ltd, incorporating major new developments in the Katherine area. FLOOD LEVEL INFORMATION This data shows the extent and depth of flooding for various flood frequencies. The flooding is caused by storm events falling over the entire catchment upstream of Vampire Creek and is indicative only. The actual extent and depth of flooding during a real flood event may differ significantly at some locations. The flooding is due to flows; - In the Katherine River at the stated gauge height at the old railway bridge; - In water-courses other than the Katherine River; - Which are a combination of flows in the Katherine River and in other water-courses where flows interact.