20201209
09472500
1.0
TRUE
Map
<div>This GIS layer has been produced by using the Northland river water quality current state predictive model developed by NIWA using Random Forest statistical method. The uncertainty of model prediction is high for DRP, suspended fine sediment and E.coli, particularly in Aupouri, Herekino and Bream Bay Freshwater Management Unit (FMU) area. For any water quality attribute this predictive model should always be viewed together with the current water quality state at the SOE monitoring sites.</div><div><br /></div><div>Attribute field <span> </span>Field description</div><div>streamOrde - Stream order</div><div>nzsegment - UID for river segment based on REC (River Environment Classification model)</div><div>NH4medState -<span> </span>Ammonia median - NPSFM band</div><div>NH4maxState -<span> </span>Ammonia max concentration (95th percentile) - NPSFM band</div><div>NO3medState -<span> </span>Nitrate median - NPSFM band</div><div>NO3maxState -<span> </span>Nitrate max concentration (95th percentile) - NPSFM band</div><div>DRPmedState -<span> </span>DRP median concentration - NPSFM band</div><div>DRPmaxState -<span> </span>DRP max concentration (95th percentile) - NPSFM band</div><div>ClarityState -<span> </span>Horizontal visual clarity (Suspended fine sediment) - NPSFM band</div><div>EcolMedState -<span> </span>E.coli median - NPSFM band</div><div>EcolMaxState -<span> </span>E.coli max concentration (95th percentile) - NPSFM band</div><div>Shape_Length -<span> </span>River segment length</div><div><br /></div><div>The details of NIWA water quality model with its methodology, accuracy level and uncertainty can be found in the Northland water quality model by NIWA - Draft report.</div><div><br /></div>
Water Quality
Rivers
Rec
monitoring sites
River Water Quality Modelled Current State
Current State
Water quality current state for unmonitored rivers and streams based on REC river network and regional SOE water quality dataset. The dataset has been classified for various water quality attributes based on 2020 NPS-FM bands.
NIWA, Northland Regional Council
<div>This data should not be viewed smaller than catchment scale. Smaller streams lower than order 2 are not represented by this dataset. Other than this, there is no user constraints.<br /></div><div><br /></div><div><div>NRC should be acknowledged for any publication. This data should not be used for any commercial use purpose.</div></div><div><br /></div><div><p style='margin-top:0px; margin-bottom:1.5rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><b>License to Use</b><br />Northland Regional Council (NRC) makes the NRC data available for use on a <a href='https://creativecommons.org/licenses/by/4.0/' rel='nofollow ugc' style='color:rgb(0, 121, 193); text-decoration-line:none;' target='_blank'>Creative Commons Attribution 4.0 New Zealand (CC BY 4.0) non-commercial licence</a>. These terms of use apply to all users of the "NRC OpenData" service or any part of it (Service). If you use the Service and/or Data, it will be assumed that you have agreed to these terms, without qualification. If you do not agree to be bound by these terms of use, please do not use the Service.</p><p style='margin-top:0px; margin-bottom:1.5rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><b>Liability</b><br />NRC will not be liable for the use you may choose to make of the data. You will indemnify and hold NRC harmless from any and all claims relating to your use of the Service or use of them by any person on your behalf.</p><p style='margin-top:0px; margin-bottom:1.5rem; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><b>Information</b><br />NRC will not be responsible for the availability, accuracy, completeness, currency or reliability of the information or maps made available via the Service. Any decision that you make after using the data must be based solely on your own evaluation of the information available to you, your circumstances and objectives. To the extent that liability cannot, by law, be disclaimed, by using the Service you agree to limit NRC's liability in contract, tort or otherwise at law to the sum of one dollar ($1.00).</p></div>
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