National indicator data for river condition in New Zealand

最新版本 由 The National Institute of Water and Atmospheric Research (NIWA) 發佈於 Aug 9, 2018 The National Institute of Water and Atmospheric Research (NIWA)

National indicator data for river condition in New Zealand - collected by Regional Councils and the National Institute of Water and Atmospheric Research (NIWA), collated and processed by NIWA and protected by copyright owned by the Ministry for the Environment on behalf of the Crown. The dataset consists of physical-chemical water quality and macro-invertebrate data from the regional council State of Environment (SoE) and National River Water Quality Network (NRWQN) programmes. The physical-chemical water quality variables are water clarity (CLAR), Escherichia coli concentration (ECOLI), nitrate-nitrogen concentration (NO3N[1]), ammoniacal nitrogen concentration (NH4N), total nitrogen concentration (TN), dissolved reactive phosphorus concentration (DRP), total phosphorus concentration (TP), temperature (TEMP), dissolved oxygen concentration (DO[2]) and percent saturation (DOSAT), suspended sediment (SS), and turbidity (TURB).

The invertebrate variables are taxa lists and counts or coded-abundance classes for each taxon. The raw invertebrate data were post-processed to generate four variables: total number of taxa in a sample (TAXA), the number of taxa from the insect orders Ephemeroptera, Plecoptera and Trichoptera (EPTtaxa), the percentage of individuals in a sample from EPT taxa (%EPTabund), and the Semi-Quantitative Macroinvertebrate Community Index for hard-bottom streams (SQMCI-hb). REC reach numbers where added to site information based on best guesses.

In the dataset used for the 2012 study, the start dates for all monitoring site records were 1 January 2006 or earlier, and the end dates ranged from June 2009 to February 2012. The range of end dates poses some potential problems due to temporal variation in water quality. Further, we carried out temporal trend analyses in the current study and recent data were needed to ensure that the analyses corresponded to recent conditions. For these reasons we requested updated physical-chemical water quality data from five regional councils, to fill the most severe gaps in recent data. Each of the five regional councils provided updates, and the ending dates in the current dataset range from January 2011 to December 2012. Note that start and end dates can vary among sites within councils, and among variables within sites.

Data Records

The data in this 出現紀錄 resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 183,438 records.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

下載

下載最新版本的Darwin Core Archive (DwC-A)資源,或資源元數據的EML或RTF文字檔。

DwC-A資料集 下載 183,438 紀錄 在 English 中 (3 MB) - Update frequency: 無計畫更新
元數據EML檔 下載 在 English 中 (6 KB)
元數據RTF文字檔 下載 在 English 中 (7 KB)

版本

The table below shows only published versions of the resource that are publicly accessible.

Rights

研究者應尊重以下權利聲明。:

The publisher and rights holder of this work is The National Institute of Water and Atmospheric Research (NIWA). This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.

GBIF 註冊

此資源已向GBIF註冊,並指定以下之GBIF UUID: 8c535464-4c81-4417-a032-1d817fb352ae。  The National Institute of Water and Atmospheric Research (NIWA) 發佈此資源,並經由GBIF New Zealand同意向GBIF註冊成為資料發佈者。

關鍵字

Occurrence; Observation

聯絡資訊

資源建立者:

Scott Larned
Author
NIWA National Institute of Water & Atmospheric Research

可回覆此資源相關問題者:

Scott Larned
Author
NIWA National Institute of Water & Atmospheric Research

元數據填寫者:

Data Curator
Custodian
NIWA National Institute of Water & Atmospheric Research

地理涵蓋範圍

New Zealand mainland

界定座標範圍 緯度南界 經度西界 [-46.7, 166.1], 緯度北界 經度東界 [-34.2, 178.84]

時間涵蓋範圍

起始日期 / 結束日期 1989-01-01 / 2012-02-29

額外的元數據

替代的識別碼 8c535464-4c81-4417-a032-1d817fb352ae
https://gbifipt.niwa.co.nz/resource?r=indicator_for_river_nz