<mdb:MD_Metadata xmlns:cit="http://standards.iso.org/iso/19115/-3/cit/2.0" xmlns:gco="http://standards.iso.org/iso/19115/-3/gco/1.0" xmlns:lan="http://standards.iso.org/iso/19115/-3/lan/1.0" xmlns:mcc="http://standards.iso.org/iso/19115/-3/mcc/1.0" xmlns:mdb="http://standards.iso.org/iso/19115/-3/mdb/2.0" xmlns:mri="http://standards.iso.org/iso/19115/-3/mri/1.0" xmlns:xlink="http://www.w3.org/1999/xlink">
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                <gco:DateTime>2018-12-10T21:40:16</gco:DateTime>
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                        <gco:CharacterString>Namoi ZoPHC and component layers 20170629</gco:CharacterString>
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                <gco:CharacterString>## **Abstract** 

This dataset was derived by the Bioregional Assessment Programme from multiple source datasets. The source datasets are identified in the Lineage field in this metadata statement. The processes undertaken to produce this derived dataset are described in the History field in this metadata statement.


Dataset contains assessment units with attributes denoting their inclusion within surface water and groundwater zones potential hydrological change, groundwater mine footprints, reporting regions, and surface water model interpolation allocations. Dataset also contains the river lines containing surface water modelling reaches and a relational table of surface water modelling node to reach ID interpolations.

## **Dataset History** 

Namoi assessment units (AUs) copied out to form basis of zone master geometry.

GW zone defined from dmax to AU relational table (where 95th acrd &gt;= 0.2 m).

AUs intersected with GW zone - gw_zophc field = 'yes', otherwise 'no'.

Modelled reaches linework by splitting up RiverStyles by reachID (from Neil's table/diagram), creation of csv look up table (relating reachID to interpolated node).

Additional stream network from Geofab clipped to PAE/subregion.

1 km buffer applied to lower lying streams based on expert judgement of topography and hydrologic connection.

AUs intersected with buffered streams, further editing to include hydrologically connected landscape class features (LCs) using Geofab as a guide:

LC_Class = 'Floodplain riparian forest' OR LC_Class = 'Floodplain riparian forest GDE' OR LC_Class = 'Floodplain wetland' OR LC_Class = 'Floodplain wetland GDE' OR LC_Class = 'Upland riparian forest GDE' OR LC_Class = 'Permanent lowland stream' OR LC_Class = 'Permanent lowland stream GDE'

Permanent upland stream GDE, Temporary upland stream GDE, Permanent upland stream, Temporary upland stream, Permanent lowland stream GDE, Temporary lowland stream GDE, Permanent lowland stream, Temporary lowland stream.

AUs intersected with GW mine footprints for open cut mines only for all futures, mine_pit field = 'yes' otherwise 'no', where yes applies to exclusion areas for groundwater HRVs (crx/cri) and summaries of mine pit areas alone (crm).

AUs intersecting modelled reaches given: sw_zophc = 'yes', alloc_rule = 'Intersecting SW reach - mod_ch', SW_model = 'yes', allocreach = ReachID 'rch_xxx'.

AUs related to modelled reaches but not intersecting reaches given: sw_zophc = 'yes', alloc_rule = 'Nearest SW reach - mod_ch', SW_model = 'yes', allocreach = ReachID 'rch_xxx'.

AUs related to streams not modelled but potentially impacted through hydrological changes upstream either through connection with impacted reaches or with headwaters of permanent streams within the groundwater zone given: sw_zophc = 'yes', alloc_rule = 'Nearest SW reach - ass_chph', SW_model = 'no', allocreach = 'rch_200'.

AUs intersecting and downstream following streams not modelled, of surface water mine footprints (but only for acrd and crdp futures) given: sw_zophc = 'yes', alloc_rule = 'Nearest SW reach - ass_chpx', SW_model = 'no', allocreach = 'rch_300'.

Stream (reach) to AU relationships are 1:1 and were governed by a hierarchical rule set where &gt;1 reach intersected an AU:

1.    Modelled change

2.    Assumed change

3.    Modelled no change

4.    Assumed no change

Further tie-breaks were decide based on stream order or stream segment length.

Three reporting regions ('Basin' field) were initially defined, lower, mid and upper Namoi; these were assigned through expert judgment following assessment and logical grouping of hydrologically connected areas: Basin = 'Lower Namoi' or 'Mid Namoi' or 'Upper Namoi'.

AUs outside (not intersecting) the PAE/AE in north-western corner of the combined zone (total of 79 from the surface water zone) and outside subregion boundary (total of 8 from the groundwater zone) along western edge of the combined zone were re-assigned to outside of combined zone.

An additional reporting region was created to represent the Pilliga and Pilliga Outwash areas (Pilliga) based on IBRA subregion boundaries with the Namoi Alluvium polygon clipped out. GW/SW zone AUs with their centroids within the Pilliga zone were selected and assigned to Pilliga and outwash (Basin = 'Pilliga and outwash'). Some manual editing of AUs near the boundary of the Pilliga area was performed to include or exclude AUs based on their regional hydrological relationships e.g. with main channel.


Output data:

NAM_ZoPHC_AU_Master_20170629.shp - Assessment units with zone attributes and allocated reach IDs.

NamoiRiverStylesReachID_20170601.shp - River line-work split by reaches and assigned Reach IDs based on surface water model interpolations.

NAM_Interpolation_20170601.csv - Lookup table relating node IDs to Reach IDs.

## **Dataset Citation** 

Bioregional Assessment Programme (2017) Namoi ZoPHC and component layers 20170629. Bioregional Assessment Derived Dataset. Viewed 11 December 2018, http://data.bioregionalassessments.gov.au/dataset/170e608f-da0d-4fce-889c-cdd0ab137cea.

## **Dataset Ancestors** 

* **Derived From** [Groundwater Zone of Impact for the Namoi subregion](https://data.gov.au/data/dataset/51aed716-276b-477f-ba48-ff99ffce7c4e)

* **Derived From** [NSW Office of Water GW licence extract linked to spatial locations NIC v2 (28 February 2014)](https://data.gov.au/data/dataset/505e8a67-90b4-408a-aa0d-038a9fb14f42)

* **Derived From** [Namoi hydraulic conductivity measurements](https://data.gov.au/data/dataset/5f88517d-8154-411d-907f-4e2c2d12a912)

* **Derived From** [River Styles Spatial Layer for New South Wales](https://data.gov.au/data/dataset/06fb694b-d2f1-4338-ab65-a707c02f11d7)

* **Derived From** [NSW Office of Water Groundwater Licence Extract NIC-  Oct 2013](https://data.gov.au/data/dataset/808fd05a-f451-4170-a1d3-8439105c0273)

* **Derived From** [Groundwater Preliminary Assessment Extent for the Namoi subregion](https://data.gov.au/data/dataset/e58298c8-dc0b-48da-aeca-50b86974954d)

* **Derived From** [Namoi groundwater uncertainty analysis](https://data.gov.au/data/dataset/36bd27e9-58d2-4bf2-8e4a-54b22ac98cfb)

* **Derived From** [Namoi NGIS Bore analysis for 2012](https://data.gov.au/data/dataset/1c828f1b-3e9c-46ae-983a-6ea2218dba48)

* **Derived From** [Australian 0.05Âº gridded chloride deposition v2](https://data.gov.au/data/dataset/c1649bd7-227f-41ff-9964-b55479bef640)

* **Derived From** [Geofabric Surface Network - V2.1](https://data.gov.au/data/dataset/ed3acf9b-888c-4d53-b376-ecab89781651)

* **Derived From** [Border Rivers Gwydir / Namoi Regional Native Vegetation Map Version 2.0. VIS_ID 4204](https://data.gov.au/data/dataset/b3ca03dc-ed6e-4fdd-82ca-e9406a6ad74a)

* **Derived From** [Bioregional Assessment areas v06](https://data.gov.au/data/dataset/54d7cc96-5129-450a-aef4-73197f9bc09d)

* **Derived From** [Namoi GW mine footprints for IMIA 20170516](https://data.gov.au/data/dataset/dbf358a6-70aa-490e-9dd2-f0c3b857d678)

* **Derived From** [Bioregional Assessment areas v04](https://data.gov.au/data/dataset/e8a2d577-c5c5-4e2c-b0fa-53e4b2d4a034)

* **Derived From** [Namoi Leapfrog geological model](https://data.gov.au/data/dataset/26747362-8e20-49df-ab2c-918fba839aa4)

* **Derived From** [NAM Analysis Boundaries 20160908 v01](https://data.gov.au/data/dataset/b71e38ac-a7cd-4781-a255-0b13548e6a90)

* **Derived From** [Historical Mining Footprints DTIRIS NAM 20150914](https://data.gov.au/data/dataset/fb0a43f1-9022-4844-b5b5-b91f72a1d9f9)

* **Derived From** [Gippsland Project boundary](https://data.gov.au/data/dataset/27413de5-d13a-4231-ac79-fc77f4cbb5f7)

* **Derived From** [NAM Assessment Units 20160908 v01](https://data.gov.au/data/dataset/f657111b-c10e-4e12-918c-60249a1a5555)

* **Derived From** [Natural Resource Management (NRM) Regions 2010](https://data.gov.au/data/dataset/1d54e38f-4051-4f0c-a350-c7dbd8eba65b)

* **Derived From** [Namoi Environmental Impact Statements - Mine footprints](https://data.gov.au/data/dataset/493a47cd-4228-4dec-bb72-bcf4495fa306)

* **Derived From** [Namoi CMA Groundwater Dependent Ecosystems](https://data.gov.au/data/dataset/a3e21ec4-ae53-4222-b06c-0dc2ad9838a8)

* **Derived From** [National Groundwater Dependent Ecosystems (GDE) Atlas (including WA)](https://data.gov.au/data/dataset/6dbaee0d-8813-46b1-9c13-1b796e7ed3bf)

* **Derived From** [Soil and Landscape Grid National Soil Attribute Maps - Clay 3 resolution - Release 1](https://data.gov.au/data/dataset/f8640540-4bb7-42ee-995a-219881e67705)

* **Derived From** [GEODATA TOPO 250K Series 3, File Geodatabase format (.gdb)](https://data.gov.au/data/dataset/96ebf889-f726-4967-9964-714fb57d679b)

* **Derived From** [Bioregional_Assessment_Programme_Catchment Scale Land Use of Australia - 2014](https://data.gov.au/data/dataset/6f72f73c-8a61-4ae9-b8b5-3f67ec918826)

* **Derived From** [GEODATA TOPO 250K Series 3](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)

* **Derived From** [NSW Catchment Management Authority Boundaries   20130917](https://data.gov.au/data/dataset/0dc4272e-c081-4ed4-9645-aa336ffacd85)

* **Derived From** [Geological Provinces - Full Extent](https://data.gov.au/data/dataset/0a064b3b-2a1e-4672-80d9-03333be67aad)

* **Derived From** [Namoi groundwater model alluvium extent](https://data.gov.au/data/dataset/e7e79c42-89aa-4278-b14c-d7c67ebd4d89)

* **Derived From** [Interim Biogeographic Regionalisation for Australia (IBRA), Version 7 (Regions)](https://data.gov.au/data/dataset/70bb7ab7-e8a9-4be5-aa73-85bb22c2cb88)

* **Derived From** [Landscape classification of the Namoi preliminary assessment extent](https://data.gov.au/data/dataset/360c39e5-1225-401d-930b-f5462fdb8005)

* **Derived From** [Namoi GW exceedance probability and drawdown quantile aspatial summary tables](https://data.gov.au/data/dataset/6bb27b9c-7d0f-4f55-8c49-f76b92288911)

* **Derived From** [Bioregional Assessment areas v03](https://data.gov.au/data/dataset/96dbf469-5463-4f4d-8fad-4214c97e5aac)

* **Derived From** [Bioregional Assessment areas v05](https://data.gov.au/data/dataset/25f89049-839d-4736-bd81-97d8e8a40f8e)

* **Derived From** [BOM, Australian Average Rainfall Data from 1961 to 1990](https://data.gov.au/data/dataset/fd91f2d4-2cc8-4d5d-9f67-8fe8af1e2676)

* **Derived From** [Preliminary Assessment Extent (PAE) for the Namoi subregion - v04](https://data.gov.au/data/dataset/6b8e415f-03f8-4b2d-a022-f6ef1e9e73a8)

* **Derived From** [BA ALL Assessment Units 1000m 'super set' 20160516_v01](https://data.gov.au/data/dataset/6c1aa99e-c973-4472-b434-756e60667bfa)

* **Derived From** [BA ALL Assessment Units 1000m Reference 20160516_v01](https://data.gov.au/data/dataset/d044b1d9-40b0-4fc3-ae43-099cc7b96497)

* **Derived From** [GIS analysis of HYDMEAS - Hydstra Groundwater Measurement Update: NSW Office of Water - Nov2013](https://data.gov.au/data/dataset/d414c703-aabd-43af-81e0-30aab4d9dfb1)

* **Derived From** [Hydstra Groundwater Measurement Update - NSW Office of Water, Nov2013](https://data.gov.au/data/dataset/08b34518-c947-4665-82e5-c144b5b24e01)

* **Derived From** [Namoi groundwater drawdown grids](https://data.gov.au/data/dataset/38b6fd6e-631c-4b3c-830b-0b449ad32d62)

* **Derived From** [Surface Geology of Australia, 1:1 000 000 scale, 2012 edition](https://data.gov.au/data/dataset/8284767e-b5b1-4d8b-b8e6-b334fa972611)

* **Derived From** [Namoi dryland diffuse groundwater recharge](https://data.gov.au/data/dataset/858327d1-a558-4edc-9315-8779924f3632)

* **Derived From** [Namoi Surface Water Mine Footprints - digitised](https://data.gov.au/data/dataset/fa0a0d09-3780-498a-a412-242b25130291)

* **Derived From** [Namoi PAE - Pilliga IBRA subregion](https://data.gov.au/data/dataset/d95831cb-8cb7-47e6-8a86-32450d59f390)

* **Derived From** [Surface water Preliminary Assessment Extent (PAE) for the Namoi (NAM) subregion - v03](https://data.gov.au/data/dataset/b4a6ad8e-c61a-44e6-8879-f7143acd1791)

* **Derived From** [Bioregional Assessment areas v01](https://data.gov.au/data/dataset/0fd0d820-30b3-451f-a126-a50040426999)

* **Derived From** [Bioregional Assessment areas v02](https://data.gov.au/data/dataset/e414b1b3-c42e-42e9-9cc4-2093054aa35f)

* **Derived From** [Namoi groundwater model](https://data.gov.au/data/dataset/5ad7be74-e091-4f95-a2bf-6033ae7b933a)

* **Derived From** [Namoi bore locations, depth to water for June 2012](https://data.gov.au/data/dataset/1deed9de-9299-4092-a68d-57852acf1a0c)

* **Derived From** [NSW Office of Water Groundwater Entitlements Spatial Locations](https://data.gov.au/data/dataset/0f4da0d0-9e82-42f3-84da-1148e0b730c1)

* **Derived From** [Victoria - Seamless Geology 2014](https://data.gov.au/data/dataset/2872d02e-66cb-42b6-9e5a-63abc8ad871b)

* **Derived From** [Murray-Darling Basin Aquatic Ecosystem Classification](https://data.gov.au/data/dataset/a854a25c-8820-455c-9462-8bd39ca8b9d6)

* **Derived From** [Namoi NSW Office of Water groundwater licence BA purpose](https://data.gov.au/data/dataset/15a48026-27f1-4239-b278-32a23e34db5f)

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                        <gco:CharacterString>Namoi subregion</gco:CharacterString>
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