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snippet: The REC2 riverlines are a network of New Zealand Rivers that have the variables described below associated with them. This data can be used as a framework for catchment analysis and calculations, land use impacts and other spatial analysis
summary: The REC2 riverlines are a network of New Zealand Rivers that have the variables described below associated with them. This data can be used as a framework for catchment analysis and calculations, land use impacts and other spatial analysis
accessInformation: National Institute of Water and Atmosphere (NIWA) Contact Julian Sykes 033488987 [email protected]
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description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Attributes associated directly with network:</SPAN></P><TABLE><TBODY><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Field</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Type</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Description</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Catarea</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Real</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Watershed area in m</SPAN></SPAN><SPAN><SPAN>2</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>CUM_Area </SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Real</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Area upstream of a reach (and including this reach area) in m</SPAN></SPAN><SPAN><SPAN>2</SPAN></SPAN><SPAN><SPAN>.</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Nzsegment</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Integer</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Reach identifier to be used with REC2 (supercedes nzreach in REC1).</SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>nz_fnode</SPAN></P><P /></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Integer</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Unique number of preceding river segment's outlet node.</SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>nz_tnode</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Integer</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Unique number of following river segment's inlet node.</SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Lengthdown</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Real</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>The distance to coast from any reach to its outlet reach, where the river drains (m).</SPAN></SPAN></P><P /></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Headwater</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Integer</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Number (0) denoting whether a stream is a “source” (headwater) stream. Non-zero for non-headwater streams.</SPAN></SPAN></P><P /></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Hydseq</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Integer</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>A unique number denoting the hydrological processing order of a river segment relative to others in the newtork.</SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>StreamOrder</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Integer</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>A number describing the Strahler order a reach in a network of reaches.</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>e</SPAN><SPAN>uclid_dist</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Real</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>The straight line distance of a reach from the reach “inlet” to its “outlet”.</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>upElev</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Real</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Height (asl) of the upstream end of a reach section in a watershed (m).</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>downElev</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Real</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Height (asl) of the downstream end of a reach section in a watershed (m).</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>upcoordX</SPAN></P><P /></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Real</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Easting of the upstream end of a river segment in m (NZTM2000).</SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>upcoordY</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Real</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Northing of the upstream end of a river segment in m (NZTM2000).</SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>downcoordX</SPAN></P><P /></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Real</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Easting of the downstream end of a river segment in m (NZTM2000).</SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>downcoordY</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Real</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Northing of the downstream end of a river segment in m (NZTM2000).</SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>s</SPAN><SPAN>inuosity</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Real</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Actual distance divided by the straight line distance</SPAN></SPAN><SPAN><SPAN>giving the degree of curvature of the stream</SPAN></SPAN></P></TD></TR><TR><TD><P><SPAN>nzr</SPAN><SPAN>each_</SPAN><SPAN>rec</SPAN><SPAN>1</SPAN></P></TD><TD><P><SPAN>Integer</SPAN></P></TD><TD><P><SPAN><SPAN>The REC1 identifiying number for </SPAN></SPAN><SPAN STYLE="font-weight:bold;"><SPAN>the corresponding\closest reach </SPAN></SPAN><SPAN><SPAN>from REC1 (can be used to retrieve the REC management classes)</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>h</SPAN><SPAN>eadw_dist</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Integer</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Distance of the furthermost “source” or headwater reach from any reach (m).</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Shape_length</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Real</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>The length of the reach (vector) as calculated by ArcGIS.</SPAN></SPAN></P></TD></TR><TR><TD><P /></TD><TD><P /></TD><TD><P /></TD></TR><TR><TD><P /></TD><TD><P /></TD><TD><P /></TD></TR><TR><TD><P /></TD><TD><P /></TD><TD><P /></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Seg</SPAN><SPAN>slpmax</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Real</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Maximum segment slope along length of reach.</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Seg</SPAN><SPAN>slpmean</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Real</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN><SPAN>Mean segment slope along length of reach.</SPAN></SPAN></P></TD></TR><TR><TD><P /></TD><TD><P /></TD><TD><P /></TD></TR><TR><TD><P /></TD><TD><P /></TD><TD><P /></TD></TR><TR><TD><P /></TD><TD><P /></TD><TD><P /></TD></TR><TR><TD><P /></TD><TD><P /></TD><TD><P /></TD></TR></TBODY></TABLE><TABLE><TBODY><TR><TD><P><SPAN>LID</SPAN></P></TD><TD><P><SPAN>Integer</SPAN></P></TD><TD><P><SPAN>Lake Identifier number(LID) of overlapping lake.</SPAN></P><P /></TD></TR><TR><TD><P /></TD><TD><P /></TD><TD><P /></TD></TR></TBODY></TABLE><TABLE><TBODY><TR><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Reachtype</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>Integer</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>A value of 2 is assigned if the segment is an outlet to the lake, otherwise 0 or null.</SPAN></P></TD></TR><TR><TD><P /><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>nextdownid</SPAN></P><P /></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>integer</SPAN></P></TD><TD><P STYLE="text-align:Justify;margin:0 0 0 0;"><SPAN>segment number of the most downstream reach</SPAN></P></TD></TR></TBODY></TABLE></DIV></DIV></DIV>
licenseInfo: <DIV STYLE="text-align:Left;"><P STYLE="font-size:16ptmargin:7 0 7 0;"><SPAN><SPAN>This work is licensed under a </SPAN></SPAN><A href="http://creativecommons.org/licenses/by-nc/4.0/" STYLE="text-decoration:underline;"><SPAN STYLE="text-decoration:underline;"><SPAN>Creative Commons Attribution-NonCommercial 4.0 International 4.0 International License</SPAN></SPAN></A><SPAN><SPAN> </SPAN></SPAN></P><P STYLE="font-size:16ptmargin:7 0 7 0;"><SPAN><SPAN>In preparing The New Zealand River Environment Classification 2 V5, all reasonable skill and care was exercised and the best available data and methods were used. Nevertheless, NIWA does not accept any liability, whether direct, indirect or consequential, arising out the use of this tool and its associated data and statistical information.</SPAN></SPAN></P><DIV><P><SPAN /></P></DIV></DIV>
catalogPath:
title: riverlines
type:
url:
tags: ["catchment area","stream order","polylines","rivers","river environment classification","REC2"]
culture: en-NZ
name:
guid:
minScale: 150000000
spatialReference: