Metadata: DNR Watersheds - DNR Level 07 - Minors

DNR Watersheds - DNR Level 07 - Minors

This page last updated: 03/13/2019
Metadata created using Minnesota Geographic Metadata Guidelines


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:Minnesota DNR - Division of Waters - Watershed Delineation Project

Title: DNR Watersheds - DNR Level 07 - Minors

Abstract: Back to main DNR Watershed Suite metadata page

These data consists of approximately 5,680 watershed delineations in one seamless dataset of drainage areas called Minnesota Department of Natural Resources (DNR) Minor Watersheds. DNR Minor Watersheds are the smallest administrative Minnesota watershed unit delineation existing at the 7th level defined in the Minnesota DNR watershed unit hierarchy.


These modern DNR Minor Watersheds are derived from the DNR Catchment base-watershed dataset. Although the lineage of these watershed delineations dates back to the early 1970s, this data is an updated version of the DNR Minor legacy watershed dataset that has been in existence in various published formats since 1979.


This new linework represents the general appearance of the legacy data. However, the geometry is considerably different. This has resulted from the DNR Watershed Delineation Projects' methodology, which incorporates modern data sources to delineate watersheds that reflect the current hydrology and topography of the landscape. These modern DNR Minor Watershed delineations have been clipped to the Minnesota state boundary.


For a more detailed background on this data, follow this link to the paper DNR Watershed Project: History, Methodology, Terminology, Attributes 2009(DNR_Watershed_Project_History_Methodology_Terminology_Attributes_2009.pdf - location unknown) document (PDF). This document may take a few moments to load for viewing.


Purpose: DNR Level 07 Minor Watersheds are a legacy watershed delineation representing the 7th hydrologic unit level of the DNR watershed hierarchal system. These delineations serve as the standard-administrative hydrologic units for Minnesota. They are defined and referenced within Minnesota statutes (103G.005 Subd. 17a and 103B.305 Subd. 10) for official state watershed map production.


To standardize and adopt an official set of watershed boundaries for regional and statewide GIS analysis, database tiling, reference, business reporting, small scale mapping reporting, and other business needs associated with hydrologic systems.


To provide a means for organizing land use and related data in a manner which is useful for hydrologic studies and watershed based decision-making.

Time Period of Content Date: 1998 - Present.

Currentness Reference: Data have been tested for completeness and attribute coding correctness.

The geometry of this data vary widely as to their currentness. The parent dataset, DNR Catchments, is the maintenance version of the statewide DNR Minor Watershed. The user of this data is encouraged to review the metadata entry for the DNR Watersheds Level 08 ? All Catchments dataset for more detailed information concerning the currentness of this dataset.

Progress: Complete

Maintenance and Update Frequency: Yearly

Spatial Extent of Data: Statewide

Bounding Coordinates: -97.3
-89.4
49.4
43.4

Place Keywords: Minnesota

Theme Keywords: Minor, Water, watershed, drainage area, major watershed, minor watershed, contributing area, hydrologic unit, hydrologic unit level, level 07, HUC, catchment, hydrology, hydrography, watershed ratio, MINOR5

Theme Keyword Thesaurus:

Access Constraints: Data are unrestricted with regards to access.

Use Constraints: USE AGREEMENT:

- Use of the data are constrained by the Minnesota Department of Natural Resources General Geographic Data License Agreement agreed to at the time of data download from the Minnesota DNR Data Deli distribution portal.


ACKNOWLEDGMENTS:

- As defined in the DNR License Agreement, users of this data must credit the Originator on published maps and analysis.

- The user shall include the Minnesota DNR source data Title (name).

- The user shall include the Minnesota DNR source data Publication Date.


- For example, Source: DNR Watersheds - DNR Level 07 - Minors, Originator: Minnesota DNR - Division of Waters - Watershed Delineation Project, Publication Date: 4/7/2009).


USE CONSTRAINT COMMENTS:

- See Cartographic Lineage, Logical Consistency, Positional Accuracy, and Currentness Reference for further discussion of data capture.

- This data is not the same as the Minnesota DNR Minor Watershed legacy data. - -- - This modern DNR Minor Watershed dataset was derived directly from the DNR Catchment layer. The user of this data is encouraged to review the metadata entry for the DNR Watersheds Level 08 - All Catchments dataset for more detailed information.

- The DNR Major Watershed dataset is specific to the state of Minnesota and is not part of the NRCS Watershed Boundary Dataset (WBD).

Contact Person Information: Sean Vaughn, GIS Hydrologist
Minnesota DNR - Division of Waters
800 Oak Savanna Lane SW
Cambridge, MN  55088
Phone: 763-689-7106
Fax: 763-689-7120
Email: sean.vaughn@state.mn.us

Browse Graphic: None available

Associated Data Sets:

Section 2: Data Quality

Attribute Accuracy:

Logical Consistency: This DNR Minor Watershed dataset is topologically correct using ArcGIS 9.3. All polygons are closed and lines intersect where intended.

This modern DNR Minor Watershed dataset was derived directly from the DNR Catchment layer. It was created by dissolving the DNR Catchments on the MINOR5 field so that DNR Catchment linework internal to the approximately 5,680 DNR Minor Watersheds are removed. The user of this data is encouraged to review the metadata entry for the DNR Watersheds Level 08 - All Catchments dataset for more detailed information.

Completeness: These data are published for September 2009.

Horizontal Positional Accuracy: Source layer wshd_lev07py3: No quantitative studies of horizontal positional accuracy exist for the data. Although positional accuracy of watershed delineations can be arbitrary, accuracy of these data can be reasonably estimated based on the characteristics of all source materials and processing techniques to be 100 feet (30 meters) from correct position.

Vertical Positional Accuracy: Source layer wshd_lev07py3: No quantitative studies of vertical positional accuracy exist for the data.

Lineage: Attribute Lineage for source table WSHD_LEV07PY3: Source Data: wshd_lev07py3

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


Section 4: Coordinate System

Horizontal Coordinate Scheme: Universal Transverse Mercator

UTM Zone Number: 15

Horizontal Datum: NAD83

Horizontal Units: meters

Vertical Datum: not applicable

Vertical Units: Not Applicable

Depth Datum: not applicable

Depth Units: Not Applicable

Section 5: Attributes

Overview: Data Elements for Attribute Table WSHD_LEV07PY3:

MAJOR: Minnesota DNR Major Watershed ID numbers.
1-5, 7-44, 46-63, 65-84.


Note: Majors 6, 45, and 64 do not exist.

MINOR5: Minnesota DNR Minor Watershed ID number. The first charactors of this field are the the DNR Major Watershed ID number.

MAJOR_NAME: Current names of DNR Major Watersheds were created in 2002 and published in 2009).

ACRES: Area of each DNR Watershed unique to respective dataset represented as acres.

SQ_MILES: Area of each DNR Watershed unique to respective dataset represented as square miles.

PROD_YEAR: The year of production associated with polygon linework.

SOURCE: The source of polygon linework.


Watershed delineation updates occur within the DNR Catchment dataset.


Since all DNR watersheds are derived from the DNR Catchment dataset, the items will always equal 'DNR Catchment Dataset'.

MINOR_NAME: Name of DNR Minor Watershed.


Detailed Citation:

Table Detail:

Section 6: Distribution

Publisher: Minnesota DNR - Division of Waters - Watershed Delineation Project

Publication Date: 09/15/2009

Contact Person Information: Sean Vaughn, GIS Hydrologist
Minnesota DNR - Division of Waters
800 Oak Savanna Lane SW
Cambridge, MN  55088
Phone: 763-689-7106
Fax: 763-689-7120
Email: sean.vaughn@state.mn.us

Distributor's Data Set Identifier: geos_dnr_watersheds.gdb\dnr_watersheds_dnr_level_07_minors

Distribution Liability: The Minnesota Department of Natural Resources General Geographic Data License Agreement is online: http://www.dnr.state.mn.us/sitetools/data_software_license.html

Ordering Instructions: Please visit the download page for this dataset on the Minnesota Geospatial Commons website using the web link below (Online Linkage).

Online Linkage: I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details.

Section 7: Metadata Reference

Metadata Date: 03/13/2019

Contact Person Information: Sean Vaughn, GIS Hydrologist
Minnesota DNR - Division of Waters
800 Oak Savanna Lane SW
Cambridge, MN  55088
Phone: 763-689-7106
Fax: 763-689-7120
Email: sean.vaughn@state.mn.us

Metadata Standard Name: Minnesota Geographic Metadata Guidelines

Metadata Standard Version: 1.2



This page last updated: 03/13/2019
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