Spot Elevation of Middle St. Johns River Basin

Metadata also available as

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: St. Johns River Water Management District
Originator: Aerial Cartographics of America, Inc.
Publication_Date: Unpublished Material
Publication_Time: Unknown
Title: Spot Elevation of Middle St. Johns River Basin
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 spot elevations from digital DTM mapping, covering 83 PLSS sections in the Middle St. Johns River Basin and 2 PLSS sections in the Upper St. Johns River Basin
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: -81.410223
East_Bounding_Coordinate: -80.752090
North_Bounding_Coordinate: 28.698481
South_Bounding_Coordinate: 27.983861
Keywords:
Theme:
Theme_Keyword_Thesaurus: SJRWMD-GIS Metadata Thesaurus
Theme_Keyword: DTM Mapping
Theme_Keyword: spot elevation
Theme_Keyword: elevation
Theme_Keyword: 1ft
Place:
Place_Keyword_Thesaurus: SJRWMD-GIS Metadata Thesaurus
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_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. Actual survey positions were either painted aerial targets or photo identifiable locations selected by the photogrammetrist. 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: +/- 0.25 feet
Vertical_Positional_Accuracy_Explanation: All well-defined spot elevations and break line points
Lineage:
Source_Information:
Source_Scale_Denominator: 4800
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 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:
The spot elevations were then converted from .dxf to an ArcInfo point coverage.
Process_Date: Unknown
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: V:\eslib\msjrb\metadata\msjrb_pts_metadata.xml
Source_Used_Citation_Abbreviation: V:\eslib\msjrb\metadata\usjrb_pts_metadata.xml
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: C:\Temp\xml28.tmp
Cloud_Cover: None
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 16389
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 0
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Label point
Point_and_Vector_Object_Count: 543
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_POINT
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: X_ELEV
Attribute_Definition:
Denotes spot elevation point values representing the elevation in units feet above sea level.
Attribute_Definition_Source: SJRWMD
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: .1
Range_Domain_Maximum: 199.9
Attribute:
Attribute_Label: NORTHING
Attribute_Definition: Y coordinate value
Attribute_Definition_Source: SJRWMD
Attribute:
Attribute_Label: EASTING
Attribute_Definition: X coordinate value
Attribute_Definition_Source: SJRWMD
Attribute:
Attribute_Label: SIGMA_Z
Attribute_Definition: error in z
Attribute_Definition_Source: SJRWMD
Attribute:
Attribute_Label: SIGMA_Y
Attribute_Definition: error in y
Attribute_Definition_Source: SJRWMD
Attribute:
Attribute_Label: SIGMA_X
Attribute_Definition: error in x
Attribute_Definition_Source: SJRWMD
Attribute:
Attribute_Label: P_TYPE
Attribute_Definition: Type of spot elevation
Attribute_Definition_Source: SJRWMD
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: S
Enumerated_Domain_Value_Definition: Spot elevation
Enumerated_Domain_Value_Definition_Source: SJRWMD
Attribute:
Attribute_Label: POLYGONID
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
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
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: 0.143
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
Generated by mp version 2.7.33 on Fri Mar 05 15:29:53 2004