Elevation: Middle St Johns River Basin 1FT Contour (Polygon)

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Aerial Cartographics of America, Inc.

Originator: St. Johns River Water Management District

Publication_Date: Unpublished Material

Publication_Time: Unknown

Title: Elevation: Middle St Johns River Basin 1FT Contour (Polygon)

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage:

Server=earth; Service=esri_sde; User=gislib; Version=SDE.DEFAULT

Description:

Abstract:

This data set consists of 83 PLSS sections of digital DTM mapping covering the Middle St. Johns River Basin and vicinity, and 2 PLSS sections of digital DTM mapping covering the Upper St. Johns River Basin and vicinity.

Purpose:

This data set depicts information about geographic features within the project area and is to be used for purposes defined by the St. Johns River Water Management District.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20010312

Beginning_Time: unknown

Ending_Date: 20010323

Ending_Time: unknown

Currentness_Reference: ground condition

Status:

Progress: Current

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -81.410327

East_Bounding_Coordinate: -80.751868

North_Bounding_Coordinate: 28.698701

South_Bounding_Coordinate: 27.983635

Keywords:

Theme:

Theme_Keyword_Thesaurus: Water Management District Standard

Theme_Keyword: DTM Mapping

Theme_Keyword: elevation

Theme_Keyword: contour

Theme_Keyword: polygon

Place:

Place_Keyword_Thesaurus: Geographic Names Information Standard

Place_Keyword: United States

Place_Keyword: Florida

Place_Keyword: Middle St. Johns River Basin

Place_Keyword: Upper St. Johns River Basin

Access_Constraints: None

Use_Constraints:

The data represented the results of data collection/processing for a specific St. Johns River Water Management District activity and indicate the general existing conditions. As such, they are only valid for their intended use, content, time and accuracies specified. The user is responsible for the results of any application of the data for other than their intended purposes.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Aerial Cartographics of America, Inc.

Contact_Person: Kristina M. Smith

Contact_Position: GIS Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 1722 W. Oak Ridge Road

City: Orlando

State_or_Province: FL

Postal_Code: 32809

Country: USA

Contact_Voice_Telephone: 407-851-7880

Contact_Facsimile_Telephone: 407-855-8250

Contact_Electronic_Mail_Address: k_smith@aca-net.com

Contact_Instructions: x21

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 3; ESRI ArcCatalog 8.3.0.800

Data_Quality_Information:

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Ground control surveys were conducted under the supervision of a licensed Florida surveyor and mapper and a registered land surveyor licensed in the State of Florida and in accordance with Florida State Statutes. Horizontal positions were referenced to UTM, Zone 17, HPGN Datum. GPS survey was used to generate the horizontal position of the surveyed points located throughout the project area. Actual survey positions were either painted aerial targets or photo identifiable locations selected by the photogrammetrist. Positional accuracy met standard third order survey requirements. Analytical triangulation was used to further densify the horizontal control necessary for data collection. Final residuals from the triangulation process met the criteria necessary for 1" = 200' mapping. Final mapped data is referenced to NAD83 datum with the 1990 high precision adjustment, units are METERS. Positional accuracy for 1" = 200' scale photogrammetric mapping complies with National Map Accuracy Standards. (See value below.)

Quantitative_Horizontal_Positional_Accuracy_Assessment:

Horizontal_Positional_Accuracy_Value: +/- 5 feet

Horizontal_Positional_Accuracy_Explanation: All well-defined features on the imagery

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Ground control surveys were conducted under the supervision of a licensed Florida surveyor and mapper and a registered land surveyor licensed in the State of Florida and in accordance with Florida State Statutes. Vertical values were referenced to NGVD29 datum. GPS survey was used to generate the vertical values of the surveyed points located throughout the project area. Vertical accuracy met standard third order survey requirements. Analytical triangulation was used to further densify the vertical control necessary for data collection. Final residuals from the triangulation process met the criteria necessary for 1ft. contour mapping. Final map data is referenced to NGVD29 datum. Vertical accuracy for 1 ft. contour photogrammetric mapping complies with National Map Accuracy Standards. (See values below.)

Quantitative_Vertical_Positional_Accuracy_Assessment:

Vertical_Positional_Accuracy_Value: +/- 0.5 feet

Vertical_Positional_Accuracy_Explanation: Normal contours

Quantitative_Vertical_Positional_Accuracy_Assessment:

Vertical_Positional_Accuracy_Value: +/- 1.0 ft.

Vertical_Positional_Accuracy_Explanation: Supplementary contours

Quantitative_Vertical_Positional_Accuracy_Assessment:

Vertical_Positional_Accuracy_Value: None

Vertical_Positional_Accuracy_Explanation: Carrying contours

Lineage:

Source_Information:

Source_Scale_Denominator: 4800 (1" = 400')

Type_of_Source_Media: aerial imagery

Source_Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 03122001

Time_of_Day: unknown

Single_Date/Time:

Calendar_Date: 03222001

Time_of_Day: unknown

Single_Date/Time:

Calendar_Date: 03232001

Time_of_Day: unknown

Source_Currentness_Reference: ground condition

Process_Step:

Process_Description:

Utilizing the ground survey points, control densification by the analytical triangulation process was accomplished. This created additional pass points on the proper horizontal and vertical datum.

Process_Date: Unknown

Process_Step:

Process_Description:

Stereo setup involving interior and absolute orientation was accomplished.

Process_Date: Unknown

Process_Step:

Process_Description:

Cad data was collected from viewing the 3D imagery on the analytical stereo plotter. This collected Cad data consisted of breaklines and spot elevations (DTM). This data was collected from the 1:4800 scale stereo imagery using first order analytical stereo restitution instruments.

Process_Date: Unknown

Process_Step:

Process_Description:

Contours were generated from the breaklines and spot elevations (DTM). QC was then performed checking for smooth joining of stereo models and necessary smoothing of final contours.

Process_Date: Unknown

Process_Step:

Process_Description:

The contours and attributes were then converted from .dxf to ArcInfo line and poly coverages. The polygons were then coded through a TIN process and manually QC'd.

Process_Date: Unknown

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: V:\eslib\msjrb\metadata\msjrb_con_metadata.xml

Source_Used_Citation_Abbreviation: V:\eslib\msjrb\metadata\usjrb_con_metadata.xml

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: C:\Temp\xml2C.tmp

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 58949

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Label point

Point_and_Vector_Object_Count: 752

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

Point_and_Vector_Object_Count: 752

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point

Point_and_Vector_Object_Count: 4

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Label point

Point_and_Vector_Object_Count: 110

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Transverse Mercator

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -81.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000182

Ordinate_Resolution: 0.000182

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: D_North_American_1983_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: National Geodetic Vertical Datum of 1929

Altitude_Resolution: 1.000000

Altitude_Distance_Units: feet

Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: GISLIB.TOPO_MIDSJR_POLY

Entity_Type_Definition: polygon attribute table - contours

Entity_Type_Definition_Source: SJRWMD

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: P_ELEV

Attribute_Definition:

polygon contour elevation in feet; coded with the lesser value in c_elev found for c_type = 1,2,3, or 4 and of the polygon bounding arcs

Attribute_Definition_Source: SJRWMD

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: 200

Attribute:

Attribute_Label: P_TYPE

Attribute_Definition: Polygon type

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: I

Enumerated_Domain_Value_Definition: Intermediate polygons

Enumerated_Domain_Value_Definition_Source: SJRWMD

Enumerated_Domain:

Enumerated_Domain_Value: P

Enumerated_Domain_Value_Definition: Polygons surrounding a peak

Enumerated_Domain_Value_Definition_Source: SJRWMD

Enumerated_Domain:

Enumerated_Domain_Value: D

Enumerated_Domain_Value_Definition: Polygons surrounding a basin or sink, depression

Enumerated_Domain_Value_Definition_Source: SJRWMD

Attribute:

Attribute_Label: SHAPE

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: SHAPE.AREA

Attribute_Definition: Area of feature in internal units squared

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: SHAPE.LEN

Attribute_Definition: Perimeter of feature in Internal units

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Kristina M. Smith

Contact_Organization: Aerial Cartographics of America, Inc.

Contact_Position: GIS Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 1722 W. Oak Ridge Rd.

City: Orlando

State_or_Province: FL

Postal_Code: 32809

Country: USA

Contact_Voice_Telephone: 407-851-7880

Contact_Facsimile_Telephone: 407-855-8250

Contact_Electronic_Mail_Address: k_smith@aca-net.com

Contact_Instructions: x21

Resource_Description: Downloadable Data

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 1.252

Metadata_Reference_Information:

Metadata_Date: 20031003

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Aerial Cartographics of America, Inc.

Contact_Person: Kristina M. Smith

Contact_Position: GIS Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 1722 W. Oak Ridge Rd.

City: Orlando

State_or_Province: FL

Postal_Code: 32809

Country: USA

Contact_Voice_Telephone: 407-851-7880

Contact_Facsimile_Telephone: 407-855-8250

Contact_Electronic_Mail_Address: k_smith@aca-net.com

Contact_Instructions: x21

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile