Cook County 2008 LiDAR and Topographic Data Services (Contract No. 08-41-342), 1-Foot Contours for Cook County, Illinois. Geodatabase Vector Digital Data, Version 1.0. Published: May 2010.

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Cook County Board of Commissioners
Publication_Date: 201005
Title:
Cook County 2008 LiDAR and Topographic Data Services (Contract No. 08-41-342), 1-Foot Contours for Cook County, Illinois. Geodatabase Vector Digital Data, Version 1.0. Published: May 2010.
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Chicago, Illinois
Publisher: Cook County Board of Commissioners
Online_Linkage: Not yet available online
Description:
Abstract:
This file is a digital geospatial Environmental Systems Research Institute (ESRI) ArcGIS Version 9.2 feature class (simple feature type) dataset type with a polyline geometry displaying 1-foot contours for Cook County, Illinois.
The 1-foot contours were interpolated from a Digital Terrain Model (DTM) that was created during 2009, for the Cook County Board of Commissioners, by the engineering firm, Merrick & Company (Merrick). (See "Cross Reference" in the Identification Information section of this metadata report for full citation information.) The 1-foot contours cover the extent of the Cook County corporate limits, plus a buffer of an additional three hundred feet (300').
The 1-foot contours described in this feature class reflect ground conditions on specific dates during 2008 and 2009. Those dates, which are associated with a data collection mission using a Light Detection and Ranging (LiDAR) system, are as follows: November 21-23, 25, 26, 28, 29, 2008; April 11-14 2009.
This dataset meets National Map Accuracy Standards (NMAS) for 1:1,200 (1"=100') scale mapping and 1' contours.
This dataset is projected using the Transverse Mercator map projection. The grid coordinate system used is the Illinois State Plane Coordinate System, East Zone (Zone Number Zone 3776, FIPS 1201), NAD83/97 HARN (horizontal datum), NAVD88 (vertical datum), with ground coordinates expressed in U.S. Survey Feet.
Purpose:
This dataset was created to enhance an existing enterprise-wide GIS database that supports current and proposed applications involving executive decision and policy development, public access, land records management, planimetric mapping, infrastructure management, economic development, engineering, map production, and various land data analyses.
Supplemental_Information:
The metadata for this data set is one (1) of a series of three (3) reports. In addition to metadata for the contours (topography), metadata exists for the DTM and control points.
MARS (Merrick Advanced Remote Sensing) is a registered trademark of Merrick & Company.
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 20081121
Single_Date/Time:
Calendar_Date: 20081122
Single_Date/Time:
Calendar_Date: 20081123
Single_Date/Time:
Calendar_Date: 20081125
Single_Date/Time:
Calendar_Date: 20081126
Single_Date/Time:
Calendar_Date: 20081128
Single_Date/Time:
Calendar_Date: 20081129
Single_Date/Time:
Calendar_Date: 20090411
Single_Date/Time:
Calendar_Date: 20090412
Single_Date/Time:
Calendar_Date: 20090413
Single_Date/Time:
Calendar_Date: 20090414
Currentness_Reference: Ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Unknown
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -88.266747
East_Bounding_Coordinate: -87.510003

North_Bounding_Coordinate: 42.157523

South_Bounding_Coordinate: 41.461724

Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Contours
Theme_Keyword: 1-foot contours
Theme_Keyword: One-foot contours
Theme_Keyword: Contour database
Theme_Keyword: Contours database
Theme_Keyword: Relief map
Theme_Keyword: Topography
Theme_Keyword: Topographic database
Theme:
Theme_Keyword_Thesaurus: Metadata Service Theme Categories
Theme_Keyword: Elevation and derived products
Theme_Keyword: Offline data
Place:
Place_Keyword_Thesaurus:
U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of The United States, and Associated Areas (FIPS 5-2): Washington, DC, National Institute of Standards and Technology.
Place_Keyword: Illinois
Place:
Place_Keyword_Thesaurus:
Illinois Compiled Statutes, 70 ILCS 1705, State of Illinois, 1994
Place_Keyword: northeastern Illinois
Place:
Place_Keyword_Thesaurus:
"Geographic Identification Code Scheme (PHC80-R5)." 1980 Census of Population and Housing, Bureau of the Census, U.S. Department of Commerce, April 1983.
Place_Keyword: Cook County
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Chicago
Access_Constraints:
Access to this feature dataset is available to county and municipal agencies. Editing privileges are restricted to authorized GIS staff members or its designees.
Use_Constraints:
Under no circumstances may the data be redistributed or made available over a network without explicit permission from the Cook County Department of Office Technology.
It is required that the Cook County Board of Commissioners be cited in any products generated from the data. The following source citation must be included: "Source: Cook County 2008 LiDAR and Topographic Data Services (Contract No. 08-41-342), 1-Foot Contours for Cook County, Illinois. Geodatabase Vector Digital Data, Version 1.0. Published: May 2010."
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Cook County Bureau of Technology
Contact_Person: Alan Hobscheid
Contact_Position: GIS Manager, Department of Geographic Information Systems
Contact_Address:
Address_Type: mailing and physical address
Address: 69 W. Washington Street
Address: Room 2700
City: Chicago
State_or_Province: Illinois
Postal_Code: 60602
Country: USA
Contact_Voice_Telephone: 312-603-1399
Contact_Facsimile_Telephone: 312-603-9713
Contact_Electronic_Mail_Address: ahobscheid@cookcountygov.com
Hours_of_Service:
09:00 - 17:00, Central Time Zone, Monday - Friday, except holidays
Contact_Instructions: Please contact during normal business hours.
Data_Set_Credit: Merrick and Pro-West & Associates.
Native_Data_Set_Environment:
The data used to create the DTM, from which the 1-foot contours were interpolated, was originally captured in Binary Data Format and later post-processed using Merrick Advanced Remote Sensing (MARS) version 6.0. For both the DTM and the 1-foot contours, the operating system used was Microsoft Windows Professional 2007 running on Dell workstations.
Cross_Reference:
Citation_Information:
Originator: Cook County Board of Commissioners
Publication_Date: 2001005
Title:
Cook County 2008 LiDAR and Topographic Data Services (Contract No. 08-41-342), Digital Terrain Model "Bare Earth" for Cook County, Illinois. DTM, Version 1.0, Published May 2010.
Edition: 1.0
Geospatial_Data_Presentation_Form: model
Publication_Information:
Publication_Place: Chicago, Illinois
Publisher: Cook County Board of Commissioners
Online_Linkage: Not yet available online

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Merrick and Pro-West & Associates performed quality inspections that included a combination of data plotting, manual examination, and automated verification checks. Specifically, attribute accuracy was supported through automated validation of attributes and data ranges, and visual inspection.
Logical_Consistency_Report:
Data are topologically correct using ArcGIS version 9.2. The following rules apply:
 1) Must not have dangles
 2) Must not self overlap
 3) Must not self intersect
 4) Must not overlap
 5) Must not intersect
Completeness_Report:
This feature class of 1-foot contours offers complete coverage of Cook County, Illinois, including a 300 foot buffer around the county boundary.
The 1-foot contours were generated from LiDAR data that was captured between November 21, 2008 and April 14, 2009.
The description of ground conditions, using 1-foot contours, has been completed using 8 subtypes that are members of a domain called "d_contour_type."
 The subtypes are:

 "Index Contours" Attribution of every fifth contour (multiples of
 five-feet).

 "Intermediate Contours" Contours that lay between each Index
 contour.

 "Index Depression Contours" Every fifth contour (multiples of
 five-feet) located in areas of lower elevation.

 "Intermediate Depression Contours" Contours that lay between each
 Index Depression contour.

 "Index Obscured Contours" Every fifth contour (multiples of five-feet)
 that intersects with previously captured areas of dense vegetation,
 dark shadows, etc.

 "Intermediate Obscured Contours" Contours that lay between each
 Index Obscured contour.

 "Index Depression Obscured Contours" Every fifth contour (multiples
 of five-feet) located in areas of lower elevation that intersects
 with previously captured areas of dense vegetation, dark shadows,
 etc.

 "Intermediate Depression Obscured Contours" Contours that lay
 between each Index Depression Obscured contour located in areas of
 lower elevation that intersects with previously captured areas of
 dense vegetation, dark shadows, etc.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The final contours meet National Map Accuracy Standards (NMAS) for 1:1,200 (1"=100') scale mapping and 1' contours.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 1.014984 meters (3.33 feet)
Horizontal_Positional_Accuracy_Explanation: National Map Accuracy Standards (NMAS)
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The final contours meet National Map Accuracy Standards (NMAS) for 1:1,200 (1"=100') scale mapping and 1' contours.
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Value: 0.15240 meters (0.5 feet)
Vertical_Positional_Accuracy_Explanation: National Map Accuracy Standards (NMAS)
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Cook County Board of Commissioners
Publication_Date: 201005
Title:
Cook County 2008 LiDAR and Topographic Data Services (Contract No. 08-41-342), Digital Terrain Model "Bare Earth" for Cook County, Illinois. DTM, Version 1.0, Published May 2010.
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Chicago, Illinois
Publisher: Cook County Board of Commissioners
Online_Linkage: Not yet available online
Type_of_Source_Media: Disc
Source_Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 20081121
Single_Date/Time:
Calendar_Date: 20081122
Single_Date/Time:
Calendar_Date: 20081123
Single_Date/Time:
Calendar_Date: 20081125
Single_Date/Time:
Calendar_Date: 20081126
Single_Date/Time:
Calendar_Date: 20081128
Single_Date/Time:
Calendar_Date: 20081129
Single_Date/Time:
Calendar_Date: 20090411
Single_Date/Time:
Calendar_Date: 20090412
Single_Date/Time:
Calendar_Date: 20090413
Single_Date/Time:
Calendar_Date: 20090414
Source_Citation_Abbreviation: COOK_COUNTY_DTM_2010
Source_Contribution:
The Digital Terrain Model was the primary data file used to generate contours using contour interpolation software (CIP).
Source_Information:
Source_Citation:
Citation_Information:
Originator: Cook County Board of Commissioners
Publication_Date: 200904
Title:
Cook County, Illinois 1:1200-Scale 2009 Obscured Areas Polygons, Version 1.0, April 2009.
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Chicago, Illinois
Publisher: Cook County Board of Commissioners
Source_Scale_Denominator: 1200
Type_of_Source_Media: Disc
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 200811
Ending_Date: 200904
Source_Currentness_Reference: Ground condition
Source_Citation_Abbreviation: COOK_OBSCURED_2009
Source_Contribution: Input GIS dataset used to derive "Obscured" contour types.
Process_Step:
Process_Description:
CONTOUR GENERATION AND PREPARATION OF GEODATABASES FOR DELIVERY TO PRO-WEST & ASSOCIATES (PWA) Merrick performed contour interpolation using the Cook County DTM. Using MARS (Merrick Advanced Remote Sensing) software, a DTM was created from ground LiDAR points and breakline points. ESRI contour shape files are created using a 2,500 foot by 2,500 foot tile scheme. The shape files are merged together to create an ESRI version 9.2 contours_1ft feature class. Feature classes were organized into geodatabases on a Township-by-Township basis. There were a total of 33 Townships prepared for delivery to PWA.
The following topology rules were applied to the "Cook2008" feature dataset:
"Must Not Have Dangles" Requires that a line feature not touch lines from the same feature class at both endpoints. An endpoint that is not connected to another line is called a dangle. This rule is used when line features must form closed loops, such as when they are defining the boundaries of polygon features.
"Must Not Self Overlap" Requires that a line feature cannot overlap itself.
"Must Not Overlap" Requires that a line feature does not overlap another line of the same feature class.
"Must Not Self Intersect" Requires that line features not cross or overlap themselves.
"Must Not Intersect"
Requires that line features from the same feature class not cross or overlap each other. Lines can share endpoints.
NOTE: No topology rules were created to define permissible relationships between this feature class and others within the feature dataset.

Once topology rules were established, the single ArcInfo coverage file was then exported as a feature class, named "Contours 1ft" into the "Cook2008" feature dataset.
QUALITY CONTROL (QC) Pro-West & Associates (PWA) was contracted by Merrick to conduct QC procedures upon the feature classes.
1) Topology PWA was responsible for correcting topology errors to ensure that the feature classes contained:
No dangles No self-intersections No self-overlaps No intersections No overlaps
PWA would review topology errors and add a QC point to a new QC feature class when significant errors were discovered such as spikes in data that caused crossing contours, bad breaklines, etc. Breaklines were used to assist in the resolution of topology errors. When PWA's review was complete, the feature class of QC points was sent to Merrick so that they could make corrections and re-send that shapefile to PWA for re-insertion into the Township GDB.
2) Contour Coding PWA was responsible for verifying that regular (Index/Intermediate) contours did not tie with any depression (Index/Intermediate) contours. Contour "rings" (i.e., closed polygons) had to be only one type, either regular or depression.
PWA reviewed each error, one feature at a time, and fixed the topographic feature class that had all the features and changed the contour types appropriately.

3) Hydro-polygons PWA verified that no contours crossed into hydro-polygons (waterbodies). Using a hydro-polygon feature class provided by Merrick, PWA clipped the topography feature class to create a topo_water feature class. PWA reviewed these features to discover any contours that crossed into lakes. When contours were discovered to cross into lakes, PWA could redraw these contours around the lake. When this was done, PWA would add a QC point to a new QC feature class so that Merrick could review the change and modify the breakline as necessary. In circumstances where PWA deemed the tolerance for error to have been exceeded, PWA would add a QC point to the new QC feature class. The contour was not re-drawn. Merrick would review the QC point, correct the error, and re-send that shapefile to PWA for re-insertion into the Township GDB.
When all corrections were completed, the topology rules were re-run to ensure compliance.
Source_Used_Citation_Abbreviation: COOK_COUNTY_DTM_2010, COOK_TILE_INDEX_2004
Process_Date: 20100301
Source_Produced_Citation_Abbreviation: CONTOUR_TILES
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Merrick & Company
Contact_Person: Doug Jacoby
Contact_Position: Director of Projects
Contact_Address:
Address_Type: mailing and physical
Address: 2450 S. Peoria Street
City: Aurora
State_or_Province: Colorado
Postal_Code: 80014
Country: U.S.A.
Contact_Voice_Telephone: (303) 751-0741
Contact_Facsimile_Telephone: (303) 751-0741
Contact_Electronic_Mail_Address: doug.jacoby@merrick.com
Hours_of_Service: 09.00 to 17.00 Mountain Time
Contact_Instructions:
Business is conducted Monday through Friday, except on holidays.
Process_Step:
Process_Description:
GEODATABASES RETURNED FROM PWA FOR FINAL PROCESSING
The contours_1ft feature class is intersected with the Obscured feature class to code any Obscured contour lines. This final feature class has FTYPE coded as follows:
"Index Contours" Attribution of every fifth contour (multiples of five-feet)
"Intermediate Contours" Contours that lay between each Index contour.
"Index Depression Contours" Every fifth contour (multiples of five-feet) located in areas of lower elevation.
"Intermediate Depression Contours" Contours that lay between each Index Depression contour.
"Index Obscured Contours" Every fifth contour (multiples of five-feet) that intersects with previously captured areas of dense vegetation, dark shadows, etc.
"Intermediate Obscured Contours" Contours that lay between each Index Obscured contour.
"Index Depression Obscured Contours" Every fifth contour (multiples of five-feet) located in areas of lower elevation that intersects with previously captured areas of dense vegetation, dark shadows, etc.
"Intermediate Depression Obscured Contours" Contours that lay between each Index Depression Obscured contour located in areas of lower elevation that intersects with previously captured areas of dense vegetation, dark shadows, etc.
Information describing ground areas that were visually obscured was provided by a dataset titled: "Cook County, Illinois 1:1200-Scale 2009 Obscured Areas Polygons, Version 1.0, April 2009"
ANNOTATION Nonfeature-linked annotation, which is geographically placed text strings that are not associated with features in the geodatabase, was generated to accompany the "Contour" feature class. All index contours (multiples of five-feet) were annotated using the ESRI maplex label engine.
QUALITY CONTROL Merrick applied rigorous quality assurance and quality control measures during the initial photogrammetric process (aerial photography, control (AGPG and ground GPS), LiDAR, and aerotriangulation), to ensure that the final desired products maintained a high level of accuracy and quality.
However, to ensure the integrity and completeness of the final cartographic characteristics and final databases, PWA performed a quality inspection that included a combination of data plotting, manual examination, and automated verification checks.
Specifically:
1. Visual checks of content (existence of required features). 2. Cartographic inspection of the placement of all text and symbols. 3. Cartographic inspection to ensure that all topographic features matched along the edge of adjacent map sheets. 4. Registration of graphical data to digital orthophotography. 5. Automated inventory/validation of the feature class. 6. Automated validation of attributes. 7. Automated validation of element types, data ranges, directionality, and label points. 8. Automated validation of network topology of linear features. 9. Automated validation of correct annotation characteristics. 10. Conformance to file naming conventions. 11. Validation of the final data delivery format. 12. Inspection of Quality Control reports.
Contour lines were verified against the DTMs, including breaklines. General review ensured that the lines did not cross each other, did not cross breaklines, had a smooth appearance, and were properly attributed.
Source_Used_Citation_Abbreviation: CONTOUR_TILES
Process_Date: 2010
Source_Produced_Citation_Abbreviation: FINAL_CONTOURS_2006
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Merrick & Company
Contact_Person: Doug Jacoby
Contact_Position: Director of Projects
Contact_Address:
Address_Type: mailing and physical
Address: 2450 S. Peoria Street
City: Aurora
State_or_Province: Colorado
Postal_Code: 80014
Country: U.S.A.
Contact_Voice_Telephone: (303) 751-0741
Contact_Facsimile_Telephone: (303) 751-0741
Contact_Electronic_Mail_Address: doug.jacoby@merrick.com
Hours_of_Service: 09.00 to 17.00 Mountain Time
Contact_Instructions:
Business is conducted Monday through Friday, except on holidays.
Cloud_Cover: 0

Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: Cook County, Illinois
Direct_Spatial_Reference_Method: vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count:


Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: NAD_1983_HARN_StatePlane_Illinois_East_FIPS_1201_Feet
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 1201
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999975
Longitude_of_Central_Meridian: -88.333333
Latitude_of_Projection_Origin: 36.666667
False_Easting: 984250.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000
Ordinate_Resolution: 0.000000

Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum 1983, adjusted 1997 (NAD 83/97) HARN
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.000500
Altitude_Distance_Units: feet
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
This dataset contains a polyline feature class (simple feature type) that represents 1-foot contours for Cook County, Illinois. In addition to automatically generated fields and associated attributes, this feature class includes:
A contour TYPE field with attributes indicating obscured, depression, index (every five-foot) and intermediate (every 1-foot) contours.
An ELEVATION field with attribute information expressed in U.S. survey feet.
Entity_and_Attribute_Detail_Citation:
Cook County 2008 LiDAR and Topographic Data Services (Contract No. 08-41-342), 1-Foot Contours for Cook County, Illinois. Geodatabase Vector Digital Data, Version 1.0. Published: May 2010.
 Data Dictionary: Cook County 2008 LiDAR and Topographic Data
                  Services (Contract No. 08-41-342), 1-Foot
                  Contours for Cook County, Illinois. Geodatabase
                  Vector Digital Data, Version 1.0.
                  Published: May 2010.

 Source: Cook County Board of Commissioners
 Format: Data stored in ESRI ArcGIS 9.2
 Feature Types Maintained: Simple and Annotation
 Geometry Types Maintained: Polyline and Polygon

 --------------------------------------------------------------------

 Feature Class Name: Contours_1ft
 Alias: Contours_1ft
 Dataset Type: Feature Class
 Feature Type: Simple
 Geometry: Polyline

 Attribute Label Attribute Definition          Attribute Type
                                             Lth Prec Scale Type Null
 OBJECTID        Internal feature number      4             OID    N
 SHAPE           Feature geometry                           Geo    Y
 FTYPE           Contour description         35             Str    Y
 ELEVATION       Height data                  4             Int    Y
 SHAPE_Length    Length of each polyline      8             Db     Y


 Key:  Lth= Length                       Type:   OID= Object ID
      Prec= Precision                            Str= String
                                                  Db= Double
                                                 Geo= Geometry
                                                 Int= Integer

 OBJECTID
 Attribute Definition: Sequential unique whole numbers that are
                       automatically generated.
 Attribute Definition Source: ESRI
 Attribute Domain Values:
   Enumerated Domain: OBJECTID >= 1

 SHAPE
 Attribute Definition: Feature geometry
 Attribute Definition Source: ESRI
 Attribute Domain Values:
   Enumerated Domain: SHAPE = "Polyline"

 FTYPE
 Attribute Definition: Contour Description
 Attribution Definition Source: Cook County Board of Commissioners
 Attribute Domain Values:
   Codeset Domain:  "Intermediate" = Intermediate Contours
                    "Index"        = Index Contours
         "Intermediate Depression" = Intermediate Depression Contours
                "Index Depression" = Index Depression Contours
           "Intermediate Obscured" = Intermediate Obscured Contours
                  "Index Obscured" = Index Obscured Contours
"Intermediate Depression Obscured" = Intermediate Depression Obscured Contours
       "Index Depression Obscured" = Index Depression Obscured Contours


 ELEVATION
 Attribute Definition: Height information, expressed in U.S. Survey
                       Feet, based upon the North American Vertical
                       Datum of 1988
 Attribution Definition Source: Cook County Board of Commissioners
 Attribute Domain Values:
   Range Domain: ELEVATION >= 200 =< 949

 SHAPE_Length
 Attribute Definition: Measured length of each polyline in U.S. Survey
                       Feet
 Attribute Definition Source: ESRI
 Attribute Domain Values:
   Enumerated Domain: SHAPE_Length >= 0

 --------------------------------------------------------------------

 Feature Class Name: Contours_1ft_Anno
 Alias: Contours_1ft_Anno
 Dataset Type: Feature Class
 Feature Type: Annotation
 Geometry: Polygon

 Attribute Label   Attribute Definition          Attribute Type
                                             Lth Prec Scale Type Null
 OBJECTID          Internal feature number    4             OID    N
 SHAPE             Feature geometry                         Geo    Y
 FeatureID         ObjectID of linked feature 4             Int    Y
 ZOrder            Display prioritization     4             Int    Y
 AnnotationClassID Class name of the anno.    4             Int    Y
 Element           Symbology & text geometry                Blob   Y
 SymbolID                                     4             Int    Y
 Status                                       2             SInt   Y
 TextString                                 255             Str    Y
 FontName          Font name                255             Str    Y
 FontSizeFont size                            8             Db     Y
 Bold              Bold (True/False)          2             SInt   Y
 Italic            Italic (True/False)        2             SInt   Y
 Underline         Underline (True/False)     2             SInt   Y
 VerticalAlignment Alignment of text          2             SInt   Y
 HorizontalAlignment Alignment of text        2             SInt   Y
 XOffset           Text position              8             Db     Y
 YOffset           Text position              8             Db     Y
 Angle             Angle of annotation        8             Db     Y
 FontLeading       Spacing between lines      8             Db     Y
 WordSpacing       Spacing between words      8             Db     Y
 CharacterWidth    Character width            8             Db     Y
 CharacterSpacing  Character spacing          8             Db     Y
 FlipAngle         Text flip angle            8             Db     Y
 Override          Override value             4             Int    Y
 SHAPE_Length      Perimeter length           8             Db     Y
 SHAPE_Area        Area of polygon            8             Db     Y


 Key:  Lth= Length                 Type:   OID= Object ID
      Prec= Precision                     SInt= Small Integer
                                           Str= String
                                            Db= Double
                                           Geo= Geometry
                                           Int= Integer
                                           Blob= Binary Large Object

 OBJECTID
 Attribute Definition: Sequential unique whole numbers that are
                       automatically generated.
 Attribute Definition Source: ESRI
 Attribute Domain Values:
   Enumerated Domain: OBJECTID >= 1

 SHAPE
 Attribute Definition: The Polygon shape that represents the
                       outline of the annotation.
 Attribute Definition Source: ESRI
 Attribute Domain Values:
   Enumerated Domain: SHAPE = "Polygon"

 FeatureID
 Attribute Definition: For feature-linked annotation, this
                       field contains the ObjectID of the
                       linked feature.
 Attribute Definition Source: ESRI
 Attribute Domain Values:
   Enumerated Domain:

 ZOrder
 Attribute Definition: Prioritization of the display of Elements.
                       Where two or more Elements overlap, the
                       Element with a higher ZOrder is only
                       displayed.
 Attribute Definition Source: ESRI
 Attribute Domain Values: NOTE: Not attributed.

 AnnotationClassID
 Attribute Definition: The Annotation Class the annotation belongs
                       to. For each annotation class there is one
                       related symbol in the Symbol Collection that
                       stores the symbology for that Annotation Class.
 Attribute Definition Source: ESRI
 Attribute Domain Values: NOTE: Not attributed.

 Element
 Attribute Definition: A 'Blob' field that stores symbology and
                       text geometry.
 Attribute Definition Source: ESRI
 Attribute Domain Values: NOTE: Not attributed.

 SymbolID
 Attribute Definition:
 Attribute Definition Source: ESRI
 Attribute Definition Values:

 Status
 Attribute Definition:
 Attribute Definition Source: ESRI
 Attribute Definition Values:

 TextString
 Attribute Definition: Text string for the feature
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Enumerated Domain:

 FontName
 Attribute Definition: Name of font
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Enumerated Domain:

 FontSize
 Attribute Definition: Size of font
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Range Domain:

 Bold
 Attribute Definition: Whether the font is bold (true/false)
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Codeset Domain:

 Italic
 Attribute Definition: Whether the font is italic (true/false)
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Codeset Domain:

 Underline
 Attribute Definition: Whether the font is underlined (true/false)
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Codeset Domain:

 VerticalAlignment
 Attribute Definition: Alignment of text (top/center/baseline/bottom)
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Enumerated domain:

 HorizontalAlignment
 Attribute Definition: Alignment of text (left/right/center/full)
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Enumerated domain:

 XOffset
 Attribute Definition: Shifts the text position right or left
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Enumerated domain:

 YOffset
 Attribute Definition: Shifts the text position up or down
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Unrepresentable domain:

 Angle
 Attribute Definition: Rotates the text angle
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Unrepresentable domain:

 FontLeading
 Attribute Definition: Adjusts the spacing between lines
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Unrepresentable domain:

 WordSpacing
 Attribute Definition: Adjusts the spacing between words
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Unrepresentable domain:

 CharacterWidth
 Attribute Definition: Adjusts the character width
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Unrepresentable domain:

 CharacterSpacing
 Attribute Definition: Adjusts the spacing between characters
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Unrepresentable domain:

 FlipAngle
 Attribute Definition: Adjusts the angle at which point rotated
                       text is flipped in place
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Unrepresentable domain:

 Override
 Attribute Definition: Override value
 Attribute Definition Source: ESRI
 Attribute Definition Values:
   Unrepresentable domain:

 SHAPE_Length
 Attribute Definition: Measured length of each polygon in U.S. Survey
                       Feet
 Attribute Definition Source: ESRI
 Attribute Definition Values:

 SHAPE_Area
 Attribute Definition: Measured area of each polygon in U.S. Survey
                       Feet
 Attribute Definition Source: ESRI
 Attribute Definition Values:

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Cook County Bureau of Technology
Contact_Person: Alan Hobscheid
Contact_Position: GIS Manager, Department of Geographic Information Systems
Contact_Address:
Address_Type: mailing and physical address
Address: 69 W. Washington Street
Address: Room 2700
City: Chicago
State_or_Province: Illinois
Postal_Code: 60602
Country: USA
Contact_Voice_Telephone: 312-603-1399
Contact_Facsimile_Telephone: 312-603-9713
Contact_Electronic_Mail_Address: ahobscheid@cookcountygov.com
Hours_of_Service:
09:00 - 17:00, Central Time Zone, Monday - Friday, except holidays
Contact_Instructions: Please contact during normal business hours.
Resource_Description:
Cook County 2008 LiDAR and Topographic Data Services (Contract No. 08-41-342), 1-Foot Contours for Cook County, Illinois. Geodatabase Vector Digital Data, Version 1.0. Published: May 2010.
Distribution_Liability:
Cook County Government Department of Geographic Information Systems GIS Maps/Data Disclaimer:
All Cook County Government (Cook County) geospatial data and maps are copyrighted. By providing you with a copy of Cook County generated maps and geospatial data, via hardcopy, electronic media or online access, you are not entitled to repackage, resell or distribute this information without the written permission of the Cook County Board of Commissioners. While efforts have been made to be as accurate as possible, Cook County provides the data for your personal use "as is". The data is not guaranteed to be accurate, correct, or complete. Information provided should not be used as a substitute for legal, business, tax, or other professional advice. The viewer should contact appropriate regulating agencies to determine accuracy or suitability of the data for a particular use. Cook County, nor its staff, assume no liability whatsoever for any losses that might occur from the use, misuse, or inability to use its geospatial data, metadata, maps or websites. By making this information available, Cook County assumes no obligation to assist the user in interpreting, browsing or using the data, metadata, maps or any application. All material appearing on the web site, any form of electronic transmission and printed hardcopy is provided and transmitted without warranty of any kind and are subject to the terms on this disclaimer.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ArcGIS
Format_Version_Number: 9.2
Format_Specification: ESRI Feature Class
Format_Information_Content:
ArcGIS Version 9.2 feature class (simple feature type) dataset type with a polyline geometry.
File_Decompression_Technique: No compression applied
Digital_Transfer_Option:
Offline_Option:
Offline_Media: DVD-ROM
Recording_Capacity:
Recording_Density: 14.1
Recording_Density_Units: Gigabytes
Recording_Format: Recording_Format
Compatibility_Information: Accessible on any computer capable of reading a DVD-ROM
Turnaround: Order dependent.
Custom_Order_Process:
Call the individual listed as the Contact_Person in the Distribution_Information section of this metadata record to find out how to obtain this data set, the available formats, the available transfer media, compatibility, etc. This person will also be able to provide information about the fees associated with obtaining the data set.
Technical_Prerequisites: Format compatibility is the user's responsibility.
Available_Time_Period:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 201005
Ending_Date: unknown

Metadata_Reference_Information:
Metadata_Date: 20100420
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Person: Mike Hoather
Contact_Position: Subcontractor to Merrick & Company
Contact_Address:
Address_Type: mailing and physical address
Address: 225 W. Huron Street, #516
City: Chicago
State_or_Province: Illinois
Postal_Code: 60654
Country: USA
Contact_Voice_Telephone: 773-251-4678
Contact_Electronic_Mail_Address: Mhoather@excite.com
Hours_of_Service:
09:00 - 17:00, Central Time Zone, Monday-Friday, except holidays
Contact_Instructions: Please contact during normal business hours
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints:
This metadata file is intended to accompany the geospatial data set identified and received from Cook County. It is not to be altered or summarized. Cook County does not support secondary distribution. If this geospatial data set was received from anyone besides the Cook County Department of Office Technology, this metadata file and the geospatial data set it describes may lack integrity.

Generated by mp version 2.9.12 on Tue Apr 20 20:59:34 2010