REC New Zealand

The REC groups rivers and parts of river networks that share similar ecological characteristics, including physical and biological. Rivers that share the same class can be treated as similar to one another and different to rivers in other classes. The REC classification system groups rivers according to several environmental factors that strongly influence or cause the rivers’ physical and ecological characteristics (climate, topography, geology and land cover). Stream order is the numerical position of a tributary or section of a river within the entire network. Headwater streams are assigned a stream order of 1. When two tributaries of the same stream order meet, the order increments by one for the next section downstream. However, if two sections meet where one section has higher order than the other, the next section downstream has the same order as the highest upstream section.
 
Citation proposal
(2010) . REC New Zealand. https://dc.niwa.co.nz:/niwa_dc/srv/api/records/425D0AE7-9794-48B9-A073-67499CFF27A6
 

INSPIRE

Identification

File identifier
425D0AE7-9794-48B9-A073-67499CFF27A6   XML
Hierarchy level
Dataset
Online resource
Resource identifier
Metadata language
English
Spatial representation type
Vector
Encoding
Format
SDE Feature Class
Projection
code
2193
 

Classification of data and services

Topic category
  • Inland waters
  • Environment
 

Classification of data and services

Coupled resource
Coupled resource
 
 

Classification of data and services

Coupled resource
Coupled resource
 
 

Keywords

ANZLIC Jurisdictions ( Theme )
  • New Zealand
ANZLIC Search Words ( Theme )
  • WATER-Surface
  • WATER-Rivers
  • WATER-Hydrology
Other keywords
 
 

Geographic coverage

N
S
E
W


 

Temporal reference

Temporal extent
Temporal extent
Date ( Creation )
2004-01-01
Date ( Publication )
2010-04-01
Date ( Revision )
2006-01-01
 

Quality and validity

Lineage
The REC represents rivers as networks of sections including their upstream catchments. Sections have an average length of 700 metres. The class of each section is based on an evaluation of six factors. The first four factors are the climate, topography, geology and land cover of the upstream catchment of individual sections of the river network. The last two factors are the Network-Position and the landform of the valley of each section of the network. Each factor is subdivided into categories that discriminate variation in characteristics. Choice of categories has been guided by scientific knowledge of the causes of patterns in characteristics of rivers at different spatial scales. The higher levels of the REC discriminate large-scale patterns in general characteristics. The lower the level of the classification used, the smaller the scale of the patterns that are defined by REC. Each level of the REC hierarchy is based on differences in a set of processes (for example hydrological processes) that are assumed to be the cause of patterns in physical and biological characteristics at a typical spatial scale. The River Environment Classification User Guide contains a comprehensive guide to the REC databases and uses. Updated in May 2010. ISBN 0-478-18919-2 ME Number 499
 

Conformity

Conformity
Conformity
 

Conformity

Conformity
Conformity
 

Restrictions on access and use

 

Restrictions on access and use

 

Responsible organization (s)

Contact for the resource
Organisation name
Koordinates.com
 

Responsible organization (s)

Contact for the resource
Organisation name
Koordinates.com
 

Metadata information

Contact for the metadata
Organisation name
Ministry for the Environment
Date stamp
2022-11-21T13:21:55
Metadata language
English
Character set
UTF8
 
 

SDS

Conformance class 1: invocable

Access Point URL
Endpoint URL
Technical specification
 

Conformance class 2: interoperable

Coordinate reference system
 
Quality of Service
 
Access constraints
Limitation
 
Use constraints
Limitation
 
Responsible custodian
Contact for the resource
 
 

Conformance class 3: harmonized

 
 

  Overviews

  Provided by

  Share on social sites

         

  Views

Read here the full details and access to the data.

  Associated resources

Not available