Tab 2: Quality, Coordinate System, and Attribute Information

Type

text

Short Name

attraccr

Definition

An explanation of how accurately the entities have been identified or how accurately values have been assigned in the data set. This can be the result of quantitative analysis, steps taken to ensure accuracy, or known deficiencies.

Domain

free text

---

Type

compound

Short Name

codesetd

Definition

Reference to a standard or list which contains the members of an established set of valid values.

Guidance

The codeset domain is used to describe an attribute whose values are defined within an established list. If the attribute being documented has values that are derived from an established set of values (for example, Federal Information Processing Standards that contain numeric codes for nations, states, and counties) then the codeset domain element should be used. Where possible, the title of the publication containing the code set and the source of the codeset should be provided.

---

Type

text

Short Name

complete

Definition

Information about omissions, selection criteria, generalization, definitions used, and other rules used to derive the data set.

Domain

free text

---

Type

text

Short Name

N/A

Definition

N/A

Domain

• Decimal degrees
• Feet
  
• Meters

Edit database table HorizCoordSys_cluster to add or modify available values for this element. After editing elements, select Tools > Refresh from database to see the new or modified values.

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Type

text

Short Name

depthdn

Definition

The identification given to the surface of reference from which depths are measured.

Domain

• not applicable
• local surface
• mean low water
• mean high water
• mean sea level
• land survey datum
• free text

---

Type

text

Short Name

depthdu

Definition

The units in which depths are recorded.

Domain

• meters
• feet
• free text

---

Type

compound

Short Name

detailed

Definition

Description of the tables (entities), fields (attributes), permissible values (domains), and related characteristics encoded in the data set.

Guidance

It is recommended that users document attribute information for their data sets where applicable. This may be done using either the detailed description (this element) or the overview description, or both. The use of the detailed description or overview sections is dependent on the needs of the individual user. In general, the overview section provides a means for describing attribute information in free text and linking to an online data dictionary, whereas the detailed section provides a means for describing each attribute individually using a standard format that includes the attribute name, description, and domain.

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Type

text

Short Name

eadetcit

Definition

A reference to one or more detailed sources of information on the content of the data set; for example, a digital or hardcopy data dictionary. (See FGDC Standard for data dictionary format information.) The user may attach or link to a detailed data dictionary.

Domain

free text

---

Type

text

Short Name

eaover

Definition

Detailed summary of the information contained in a data set.

Guidance

This element is used to provide an overview of attribute information as opposed to the detailed attributes section that lists individual attributes one by one. Both options may be used together. This element allows the user to provide a general overview of attribute information and include a link or reference to a published citation or data dictionary (using the Citation field).

Domain

free text

---

Type

compound

Short Name

enttyp

Definition

The definition and description of a dataset or table into which similar entities are classified.

Guidance

If information is provided in the detailed description element, users should document the table (entity) label, definition, and definition source for each of the entities in the data set. This compound element provides the entity type label, definition, and definition source fields for a user to document this information.

Domain

free text

---

Type

compound

Short Name

edom

Definition

The members of an established set of valid values.

Guidance

The enumerated domain is used to describe an attribute whose values are defined in a set list. If the attribute being documented has a set list of available values, this option should be used. The enumerated domain should include the domain value, the value definition, and the value definition source.

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Type

compound

Short Name

attr

Definition

A defined characteristic of an entity.

Guidance

If information is provided in the detailed description element, users should document each individual attribute using an attribute element. The attribute element provides the means for a user to specify the attribute label (or name), definition, definition source, and domain values. This element may be repeated as many times as necessary in order to provide basic information for each attribute.

Domain

free text

---

Type

compound

Short Name

horizsys

Definition

The reference frame or system from which linear or angular quantities are measured and assigned to the position that a point occupies.

Domain

• Geographic
• Universal Transverse Mercator
• State Plane Coordinate System
• Minnesota County Coordinate System
• free text

Edit database table HorizCoordSys_cluster to add or modify available values for this element. After editing elements, select Tools > Refresh from database to see the new or modified values.

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Type

text

Short Name

horizdn

Definition

The identification given to the reference system used for defining the coordinates of points.

Domain

• North American Datum of 1927
• North American Datum of 1983
• World Geodetic System 1984
• free text

Edit database table HorizCoordSys_cluster to add or modify available values for this element. After editing elements, select Tools > Refresh from database to see the new or modified values.

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Type

text

Short Name

horizpae

Definition

The identification of the test that yielded the Horizontal Positional Accuracy Value.

Domain

free text

---

Type

text

Short Name

horizpar

Definition

An explanation of the accuracy of the horizontal coordinate measurements and a description of the tests used.

Domain

free text

---

Type

real

Short Name

horizpav

Definition

An estimate of the accuracy of the horizontal coordinate measurements in the data set expressed in (ground) meters.

Domain

free text

---

Type

text

Short Name

logic

Definition

An explanation of the fidelity of relationships in the data set and tests used.

Guidance

This element is used to provide an overview of the types of tests that were performed to determine data integrity (consistency of features in the data set, as opposed to attributes or overall positional accuracy). Some examples of tests:

• Tests of Valid Values
  • Tests for permissible values may be applied to any data structure.
  • Such a test can detect gross blunders, but it does not ensure all aspects of logical consistency. 
• General Tests for Graphic Data
  • A database containing lines may be subjected to the following general questions:
    • Do lines intersect only where intended?
    • Are any lines entered twice?
    • Are all areas completely described?
    • Are there any overshoots or undershoots?
    • Are any polygons too small, or any lines too close? 
  • Different tests may be applied to address these questions.
  • The report should contain a description of tests applied or a reference to software used.
  • The report should state whether inconsistencies were corrected or detail the remaining errors. 
• Specific Topological Tests
  • Logical consistency may be reported as "Topologically Clean" if an automated procedure concludes:
    • All chains intersect at nodes (report tolerance used).
    • Chains and nodes are consistent around polygons or vice-versa.
    • Inner rings embed consistently in enclosing polygons. 
  • The quality report shall identify the software (name and version) used to verify these conditions.

Date of Test

Any report should include testing date(s). If corrections/modifications occur after the tests, the report should indicate how the new information was checked for logical consistency.

Domain

free text

---

Type

real

Short Name

latres

Definition

The minimum difference between two adjacent latitude values expressed in Geographic Coordinate Units of measure.

Domain

Latitude Resolution > 0.0

---

Type

text

Short Name

procstep

Definition

Information about the sources of data used to construct the data set and steps used to process the data.

Guidance

For each processing step provide, where possible, the following: source data name, source data scale, source data date, description of processing steps performed, scanning or digitizing specifications, hardware & software used, processing tolerances, etc.

Domain

free text

---

Type

real

Short Name

longcm

Definition

The line of longitude at the center of a map projection generally used as the basis for constructing the projection.

Domain

-180.0 <= Longitude of Central Meridian < 180.0

---

Type

real

Short Name

longres

Definition

The minimum difference between two adjacent longitude values expressed in Geographic Coordinate Units of measure.

Domain

Longitude Resolution > 0.0.

---

Type

text

Short Name

overview

Definition

Summary of the information content of the data set.

Guidance

This element is recommended for data sets that contain attribute information. The overview section may be used to provide a general overview of information about a data set's attributes.

Domain

free text

---

Type

compound

Short Name

edom

Definition

The valid values that can be assigned for an attribute.

Guidance

When the detailed attributes section is used, the inclusion of the attribute domain values element is required. This element is documented using the enumerated domain, range domain, codeset domain, or unrepresentable domain options. A domain is the set of possible data values of an attribute. Each attribute must include an attribute domain value, with one of the four available domain types selected to describe the domain. The domains available for representing data are used as follows:

• Enumerated Domain: An enumerated domain is comprised of a list of values. If the attribute being documented has a set list of available values, this option should be used. The enumerated domain requires the inclusion of the domain value, the value definition, and the value definition source.
• Range Domain: A range domain is comprised of a sequence, series, or scale of (usually numeric) values between limits.
• Codeset Domain: A codeset domain is one in which the data values are defined by a set of codes. When using the codeset domain, the title of the publication containing the codeset and the source of the codeset should be provided if it exists.
• Unrepresentable Domain: An unrepresentable domain is one for which the set of data values cannot be represented. If the attribute being documented does not contain a set of known values, then this option should be selected.

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Type

text

Short Name

plandu

Definition

Units of measure used for distances.

Guidance

This element is used with State Plane or UTM Projections

Domain

• meters
• international feet
• survey feet
• free text

---

Type

compound

Short Name

rdom

Definition

The minimum and maximum values of a continuum of valid values.

Guidance

The range domain is used to describe an attribute whose values are defined within a set range. If the attribute being documented is comprised of a sequence, series, or scale of (usually numeric) values between limits, then the range domain element should be used.

---

Type

real

Short Name

ordres

Definition

The row height of a raster cell expressed in distance units of measure.

Domain

> 0.0

---

Type

real

Short Name

absres

Definition

The column width of a raster cell expressed in distance units of measure.

Domain

> 0.0

---

Type

free text

Short Name

udom

Definition

Description of the values and reasons why they cannot be represented.

Guidance

An unrepresentable domain should be used if the attribute being documented does not contain information that could be represented in a standard list or set of known values (e.g., a list of people's names). In this case, provide free text to describe the attribute and the information that it may contain.

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Type

text

Short Name

altdatum

Definition

The identification given to the surface taken as the surface of reference from which altitudes are measured.

Domain

• National Geodetic Vertical Datum of 1929
• North American Vertical Datum of 1988
• North American Vertical Datum of 1988 (Geoid 2003)
• North American Vertical Datum of 1988 (Geoid 2009)
• North American Vertical Datum of 1988 (Geoid 2012A)
• free text

---

Type

text

Short Name

vertacce

Definition

The identification of the test that yielded the Vertical Positional Accuracy Value.

Guidance

This field is not required. If data contain vertical information and tests are performed to yield an accuracy assessment for vertical information, this field documents the test(s) performed.

Domain

free text

---

Type

text

Short Name

vertaccr

Definition

An explanation of the accuracy of the vertical coordinate measurements and a description of the tests used.

Domain

free text

---

Type

text

Short Name

altunits

Definition

The units in which altitudes are recorded.

Domain

• meters
• feet
• free text

---

Type

text

Definition

This field applies to several different metadata elements depending on the horizontal coordinate system specified in the projection field. 

• UTM projection: This field holds the UTM Zone for MGMG 1.2 element utmzone. 
• State Plane projection: This field holds the SPCS Zone identifier for MGMG 1.2 element spcszone. 
• County Coordinate projection: This field holds the County Coordinate Zone Identifer for the MGMG 1.2 element mgmg4coz.

Guidance

The zone field applies to State Plane Coordinate System, UTM projection and Minnesota County Coordinate System options. It is used to determine output information for the coordinate system field information. Select the appropriate zone for the spatial reference system used for your data set. 

For the Minnesota County Coordinate System, the zone identifier is a number from 1 to 67. Their source is The Minnesota County Coordinate System, A User's Handbook by Ken Whitehorn, Itasca County Surveyor, published by Precision Measuring Systems, 1998. Please note: these Zone Identifiers are NOT the same as the COUNTY IDs. Also, some zones include multiple counties and some large counties have multiple zones. 

• Map showing Minnesota's UTM zones, State Plane Zones and county coordinate zones.
• Detailed description of Minnesota map projections and parameters from the Minnesota DOT. 

Edit database table HorizCoordSys_cluster to add or modify available values for this element. After editing elements, select Tools > Refresh from database to see the new or modified values.

Domain

• For UTM:
  • 14
  • 15
  • 15E (represents zone 15 extended to cover the entire state of Minnesota)
  • 16
• For SPCS:

  Use the Federal Information Processing Standard (FIPS) four-digit numeric code. In Minnesota:

  • North = 2201
  • Central = 2202
  • South = 2203
• For the Minnesota County Coordinate System:

  Use the zone identifier from this list

  • AITKIN: 30
  • ANOKA: 42
  • BECKER: 26
  • BELTRAMI NORTH: 14
  • BELTRAMI SOUTH: 13
  • BENTON: 34
  • BIG STONE: 49
  • BLUE EARTH: 56
  • BROWN: 55
  • CARLTON: 31
  • CARVER: 46
  • CASS NORTH: 28
  • CASS SOUTH: 29
  • CHIPPEWA: 50
  • CHISAGO: 41
  • CLAY: 23
  • CLEARWATER: 20
  • COOK NORTH SHORE: 01
  • COOK NORTH: 03
  • COOK SOUTH: 02
  • COTTONWOOD: 64
  • CROW WING: 29
  • DAKOTA: 45
  • DODGE: 62
  • DOUGLAS: 37 
  • FARIBAULT: 63 
  • FILLMORE: 61 
  • FREEBORN: 63 
  • GOODHUE: 57 
  • GRANT: 37 
  • HENNEPIN: 43 
  • HOUSTON: 60 
  • HUBBARD: 27
  • ISANTI: 41 
  • ITASCA NORTH: 11 
  • ITASCA SOUTH: 12 
  • JACKSON: 63 
  • KANABEC: 32 
  • KANDIYOHI: 48 
  • KITTSON: 17 
  • KOOCHICHING: 10
  • LAC QUI PARLE: 50 
  • LAKE NORTH SHORE: 05
  • LAKE: 04 
  • LAKE OF THE WOODS NORTH: 16 
  • LAKE OF THE WOODS SOUTH: 15
  • LE SUEUR: 57 
  • LINCOLN: 52 
  • LYON: 53 
  • MCLEOD: 47 
  • MAHNOMEN: 21 
  • MARSHALL: 18
  • MARTIN: 63
  • MEEKER: 48
  • MILLE LACS: 33 
  • MORRISON: 35 
  • MOWER: 63 
  • MURRAY: 65
  • NICOLLET: 56 
  • NOBLES: 67 
  • NORMAN: 22 
  • OLMSTED: 62 
  • OTTER TAIL: 25 
  • PENNINGTON: 19 
  • PINE: 32 
  • PIPESTONE: 66 
  • POLK: 19 
  • POPE: 39 
  • RAMSEY: 43 
  • RED LAKE: 19 
  • REDWOOD: 54 
  • RENVILLE: 47 
  • RICE: 57 
  • ROCK: 67 
  • ROSEAU: 17 
  • ST. LOUIS NORTH SHORE: 06
  • ST. LOUIS SOUTH: 07 
  • ST. LOUIS CENTRAL: 08
  • ST. LOUIS NORTH: 09 
  • SCOTT: 45 
  • SHERBURNE: 40 
  • SIBLEY: 47 
  • STEARNS: 39 
  • STEELE: 62 
  • STEVENS: 39 
  • SWIFT: 49 
  • TODD: 36 
  • TRAVERSE: 38
  • WABASHA: 58 
  • WADENA: 29 
  • WASECA: 62
  • WASHINGTON: 44 
  • WATONWAN: 64 
  • WILKIN: 24 
  • WINONA: 59 
  • WRIGHT: 40
  • YELLOW MEDICINE: 51

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