msjrb_orthos

Metadata:

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

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Publication_Date: Unpublished Material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: msjrb_orthos

Geospatial_Data_Presentation_Form: tabular digital data

Online_Linkage: \\WINDEX\SJR\gislib\imagery\catalogs\msjrb_orthos.dbf

Description:

Abstract:

This data set consists of digital DTM mapping and digital ortho photographic images covering the St. Johns River Middle River Basin and vicinity.

Purpose:

The objective is to acquisite new aerial photographs to provide current information on the low water levels and health of natural communities in the Middle St. Johns River Basin and vicinity

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20010312

Ending_Date: 20020930

Currentness_Reference: Ground Condition

Status:

Progress: Current

Maintenance_and_Update_Frequency: As needed.

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 524,775

East_Bounding_Coordinate: 598,549

North_Bounding_Coordinate: 1,586,735

South_Bounding_Coordinate: 1,496,667

Keywords:

Theme:

Theme_Keyword_Thesaurus: Water Management District Standard

Theme_Keyword: DTM Mapping

Theme_Keyword: Ortho Images

Place:

Place_Keyword_Thesaurus: Geographic Names Information System

Place_Keyword: United States

Place_Keyword: Florida

Place_Keyword: St. Johns Middle River Basin

Place_Keyword: Brevard, Orange, and Seminole counties

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: St. Johns River Water Management District

Contact_Position: Special Water Resource Project manager

Contact_Address:

Address_Type: Mailing Address

Address: St. Johns River Water Management District, 4040 Reid Street

City: Palatka

Postal_Code: 32177

Country: USA

Contact_Voice_Telephone: 904-329-4204

Contact_Facsimile_Telephone: 904-329-4508

Contact_Electronic_Mail_Address: carla_palmer@district.sjrwmd.state.fl.us

Data_Set_Credit:

Aerial Cartographics of America, Inc. 1722 W. Oak Ridge Road Orlando, Florida 32809 Phone (407) 851-7880 Fax (407) 855-8250 E-mail admin@aca-net.com Contract No. SE626AA

Native_Data_Set_Environment:

Microsoft Windows NT Version 4.0 (Build 1381) Service Pack 6; ESRI ArcCatalog 8.2.0.700

Data_Quality_Information:

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Digital orthophotos must meet horizontal National Map Accuracy Standards (NMAS) at 1:2,400 scale. The NMAS specify that 90 percent of the well-defined points tested must fall within 1/20 inch at map scale.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

The vertical accuracy of the source DTM must meet National Map Accuracy Standards.

Lineage:

Process_Step:

Process_Description:

Rectify raster image using five inputs: 1) the unrectified raster image scanned from the diapositive or directly acquired from a digital sensor, 2) a digital terrain model with the same area of coverage as the digital orthophoto, 3) the photo identifiable image and ground coordinates of ground control points, 4) calibration information about the sensor collector device and, 5) a user parameter file.

Process_Step:

Process_Description: Project to UTM in meters, Datum of 1983/90

Process_Step:

Process_Description:

image mosaicking: If a mosaic of two or more digital orthophoto chips is made, the brightness values of the other chips will be adjusted to match that of the reference chip. The join lines between the overlapping chips will be chosen to minimize tonal variations. Localized adjustment of the brightness values will be done to reduce tonal differences between join areas.

Process_Step:

Process_Description:

Radiomeric verification: Radiometric accuracy will be verified by visual inspection of the digital orthophoto with the original unrectified image to determine if the digital orthophoto has the same image quality as the source image(s).

Process_Step:

Process_Description:

Accuracy Verification: Visual verification will be done for image accuracy and completeness, to ensure that no gaps exist in either the image area or the overedge coverage.

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 17

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 1:17000

Longitude_of_Central_Meridian: 81 00 00

False_Easting: 200000 (meters)

False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: N/A

Coordinate_Representation:

Abscissa_Resolution: N/A

Ordinate_Resolution: N/A

Planar_Distance_Units: US Survey Feet

Geodetic_Model:

Horizontal_Datum_Name: NAD 1983/1990 Ajustment (HPGN)

Ellipsoid_Name: WGS 1984

Semi-major_Axis: 6378137.000 (meters)

Denominator_of_Flattening_Ratio: 1/298.25722357000

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: NGVD 1929

Altitude_Resolution: N/A

Altitude_Distance_Units: N/A

Altitude_Encoding_Method: N/A

Depth_System_Definition:

Depth_Datum_Name: Land Survey Datum

Depth_Resolution: N/A

Depth_Distance_Units: N/A

Depth_Encoding_Method: Implicit Coordinate

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: msjrb_orthos

Attribute:

Attribute_Label: OID

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: IMAGE

Attribute_Definition: Path to the digital orthos

Attribute_Definition_Source: SJRWMD

Attribute:

Attribute_Label: XMIN

Attribute:

Attribute_Label: YMIN

Attribute:

Attribute_Label: XMAX

Attribute:

Attribute_Label: YMAX

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: St. Johns River Water Management District

Contact_Address:

Address_Type: Mailing Address

Address: St. Johns River Water Management District, 4040 Reid Street

City: Palatka

Postal_Code: 32177

Country: USA

Contact_Voice_Telephone: 904-329-4204

Contact_Facsimile_Telephone: 904-329-4508

Resource_Description: Contract SE626AA

Distribution_Liability:

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.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 0.013

Metadata_Reference_Information:

Metadata_Date: 20020813

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Aerial Cartographics of America, Inc.

Contact_Person: REQUIRED: The person responsible for the metadata information.

Contact_Address:

Address_Type: Mailing

Address: 1722 W. Oak Ridge Rd.

City: Orlando

State_or_Province: REQUIRED: The state or province of the address.

Postal_Code: 32809

Country: USA

Contact_Voice_Telephone: 407-851-7880

Contact_Facsimile_Telephone: 407-855-8250

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:

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.

Metadata_Extensions:

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

Profile_Name: ESRI Metadata Profile