Flow Weighted Mean Concentration of nitrogen

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Go to Section:
1. Overview
2. Data Quality
3. Data Organization
4. Coordinate System
5. Attributes
6. Distribution - Get Data
7. Metadata Reference

Section 1 Overview
Originator Natural Resources Research Institute, Minnesota Pollution Control Agency
Title Flow Weighted Mean Concentration of nitrogen
Abstract This data layer indicates the Flow Weighted Mean Concentration (FWMC) of nitrogen of streams in watersheds throughout the state. It was developed at NRRI using data from the MN Pollution Control Agency’s Watershed Pollutant Load Monitoring Network (WPLMN). The WPLMN program began in 2007 and uses water quality and flow data to calculate nutrient and sediment loads and concentrations from 199 major and sub-watersheds across the state. FWMC are calculated by dividing the total load over the estimation time period by the total streamflow. These data can be used for watershed modeling, determining pollutant source contributions, tracking water quality trends, and assessing water quality restoration efforts. Elevated levels of nitrogen can lead to undesirable levels of algal and aquatic plant growth and may need to be removed if used for drinking water.
Purpose
Time Period of Content Date
Currentness Reference
Progress
Maintenance and Update Frequency Annually
Spatial Extent of Data
Bounding Coordinates -97.222158
-90.051693
49.002711
43.513998
Place Keywords
Theme Keywords
Theme Keyword Thesaurus
Access Constraints
Use Constraints
Contact Person Information Kristi Nixon, GIS Specialist
University of Minnesota, Natural Resources Research Institute
5013 Miller Trunk Highway
Duluth, MN  55811
Phone: 218-788-2645
Email: knixon@d.umn.edu
Browse Graphic None available
Associated Data Sets

Section 2 Data Quality
Attribute Accuracy
Logical Consistency
Completeness
Horizontal Positional Accuracy
Lineage

Section 3 Spatial Data Organization (not used in this metadata)

Section 4 Coordinate System
Horizontal Coordinate Scheme
Horizontal Datum NAD83
Horizontal Units meters

Section 5 Attributes
Overview
Detailed Citation
Table Detail:
Average_FWMC_NOx_5_12_2020
Field NameValid ValuesDefinitionDefinition Source
FID
-
Internal feature number.Esri
Shape
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Feature geometry.Esri
Site_Name
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Hydstra_ID
-
Site_Type
-
Parameter
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First_Year
-
Last_Year
-
Num_Datase
-
AvgFWMC__m
-
Flow Weighted Mean Concentration of nitrogen in mg/L
CatchArea
-
Basin
-
HUC12
-
Latitude
-
Longitude
-
Organizati
-
EQuIS_ID
-


Section 6 Distribution
Publisher Natural Resources Research Institute (NRRI)
Publication Date 12/08/2020
Contact Person Information ,


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Phone:
Email:
Distributor's Data Set Identifier
Distribution Liability
Ordering Instructions
Online Linkage None available

Section 7 Metadata Reference
Metadata Date
Contact Person Information ,


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Phone:
Email:
Metadata Standard Name
Metadata Standard Version
Metadata Standard Online Linkage


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