Digital Ortho Quads 2000 1-meter

Metadata also available as

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unknown
Title: Digital Ortho Quads 2000 1-meter
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Palatka, Florida
Publisher: St. Johns River Water Management District
Online_Linkage: \\WINDEX\SJR\gislib\imagery\doq00\dq2807ne.bil
Description:
Abstract:
The 2000 (1998-2000) digital orthorectified quarter quad (DOQQ) images cover the entire St. Johns River Water Management District. Photography dates began in late 1998 through 2000 with the bulk of the photographs taken in 1999. These IR images are from the 1:40000 NAPP photography scanned at 1-meter resolution. The original images were resampled to two additional sets with 3-meter and 6-meter pixel sizes. Also, the extensive overlapping edges in the original images were trimmed (about 12 pixel overlap) during the resampling processing that was performed inhouse.
Purpose:
For Cartographic applications also acceptable for Landcover and landuse mapping.
Supplemental_Information:
The original DOQQ images are in USGS BIP format with 1-meter pixel size. The DOQQ images internet Download version are available as one zip file per quad; the zip file contains all four quarterquads in MRSid image format.. Users of this downloaded data may need to download the MrSid extension from LizardTech Corporation (R) at the following website: <http://www.lizardtech.com>. Three and six meter resolution version of these images are not available for download.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -80.812731
East_Bounding_Coordinate: -80.749744
North_Bounding_Coordinate: 27.500214
South_Bounding_Coordinate: 27.437299
Keywords:
Theme:
Theme_Keyword_Thesaurus: SJRWMD-GIS Metadata Thesaurus
Theme_Keyword: DOQQ
Theme_Keyword: Orthophoto
Theme_Keyword: Orthorectified
Theme_Keyword: Infrared (IR)
Theme_Keyword: Digital
Theme_Keyword: imageryBaseMapsEarthCover
Place:
Place_Keyword_Thesaurus: SJRWMD-GIS Metadata Thesaurus
Place_Keyword: Florida
Place_Keyword: St. Johns River Water Management District
Place_Keyword: Counties
Place_Keyword: Alachua County
Place_Keyword: Baker County
Place_Keyword: Bradford County
Place_Keyword: Brevard County
Place_Keyword: Clay County
Place_Keyword: Duval County
Place_Keyword: Flagler County
Place_Keyword: Indian River County
Place_Keyword: Lake County
Place_Keyword: Marion County
Place_Keyword: Nassau County
Place_Keyword: Okeechobee County
Place_Keyword: Orange County
Place_Keyword: Osceola County
Place_Keyword: Polk County
Place_Keyword: Putnam County
Place_Keyword: Seminole County
Place_Keyword: St. Johns County
Place_Keyword: Volusia County
Access_Constraints: None
Use_Constraints:
The St. Johns River Water Management District prepares and uses information for its own purposes and this information may not be suitable for other purposes. This information is provided "as is". Further documentation of this data can be obtained by contacting: St. Johns River Water Management District, Division of Integrated Application Systems, Post Office Box 1429, Palatka, Florida, 32178-1429, (386) 329-4500.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: St. Johns River Water Management District
Contact_Position: GIS Data Manager, Information Resources Department
Contact_Address:
Address_Type: mailing address
Address: P.O Box 1429
City: Palatka
State_or_Province: FL
Postal_Code: 32178-1429
Contact_Voice_Telephone: (386) 329-4500
Contact_Electronic_Mail_Address: gis_support@sjrwmd.com
Hours_of_Service: 0800 - 1700 EST
Browse_Graphic:
Browse_Graphic_File_Name: <http://intraweb/gisdoc/cf/smms0/gifimages/doq2000.gif>
Browse_Graphic_File_Type: GIF
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800
Data_Quality_Information:
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Accuracy Statement by USGS: Digital orthophoto quadrangles and quarter-quadrangles must meet horizontal National Map Accuracy Standards (NMAS) at 1:24000 Scale and 1:12000 sacle, respectively. The NMAS specifiy that 90 percent of the well-defined points tested must fall within 40 feet (1/50 inch) at 1:24000 scale and 33.3 feet (1/30 inch) at 1:12000 scale.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Accuracy Statement by USGS: The vertical accuracy of the source DEM must be equivalent to or better than 7 meters. The DOQ RMSE is the square root of the average of the square discrepancies. These discrepancies are the difference in coordinated (x and y) values derived by comparing the data being tested with values determined during aerotriangulation or by an independent survey of higher accuracy. All remaining inputs and processes (e.g., aerotriangulation control and methodology, scanner and sensor calibrations) used in digital orthophoto production must be sufficiently accurate to ensure that the final product meets NMAS specifications.
Lineage:
Source_Information:
Source_Scale_Denominator: 40,000
Process_Step:
Process_Description:
AML's and C++ programs were developed to process the raw DOQ image data in one unified step. Each DOQQ is clipped, converted to BIL format, and resampled into 3-meter and 6-meter datasets. The statistical and dates information of each DOQQ image were also calculated and extracted.

Clipping method: A 12-meter overlap is reserved for each side of the DOQQ image to ensure proper closure. This 12-meter is translated to 12 pixels for the 1-meter images, 4 pixels for the 3-meter images, and 2 pixels for 6-meter images. The boundary information is extracted from the BIP file header for clipping.

Resampling method: Resampling from the 1-meter to 3-meter and 6-meter datasets was conducted using the averaging method instead of the nearest-neighbor. The 3-meter data image set was created from the 1-meter set, and the 6-meter set was based on the 3-meter dataset.

In addition, the full header of each DOQQ was extracted from the image binary file and converted to ASCII text which is stored as dqxxxxyy.txt together with the BIL image file. All information regarding this particular DOQQ image can be extracted from this text file.

Source_Used_Citation_Abbreviation: C:\DOCUME~1\coman\LOCALS~1\Temp\xml19.tmp
Process_Date: March 2001
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 6958
Column_Count: 6211
Vertical_Count: 1
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: row and column
Coordinate_Representation:
Abscissa_Resolution: 1.000000
Ordinate_Resolution: 1.000000
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:
Entity_and_Attribute_Information:
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: St. Johns River Water Management District
Contact_Position: GIS Data Manager, Information Resources Department
Contact_Address:
Address_Type: mailing address
Address: Post Office Box 1429
City: Palatka
State_or_Province: Florida
Postal_Code: 32178-1429
Country: USA
Contact_Voice_Telephone: (386) 329-4500
Contact_Electronic_Mail_Address: gis_support@sjrwmd.com
Hours_of_Service: 0800-1700 EST
Resource_Description: Downloadable Data
Distribution_Liability:
The St. Johns River Water Management District prepares and uses information for its own purposes and this information may not be suitable for other purposes. This information is provided "as is". Further documentation of this data can be obtained by contacting: St. Johns River Water Management District, Division of Integrated Application Systems, Post Office Box 1429, Palatka, Florida, 32178-1429, (386) 329-4500.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE
Format_Version_Number: v8.2
Format_Specification: ARC/INFO Export Format - UNIX Compression
File_Decompression_Technique: Winzip
Transfer_Size: 0.000
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://www.sjrwmd.com>
Offline_Option:
Offline_Media: CD-ROM
Fees: $40 per CD
Ordering_Instructions:
There is no charge for downloading data from the DISTRICT web site at <http://www.sjrwmd.com>. Data can be orded on CD-ROM as instructed on the web site.
Turnaround: 10 working days
Custom_Order_Process:
1. Use the DISTRICT website: <http://www.sjrwmd.com> to download data, or 2. Call or email to organizations listed under Distributor. Spatial data are in ARC/INFO interchange formats.
Technical_Prerequisites:
Internet access / Unzip, Winzip / To import coverage: ESRI ArcInfo workstation, ArcView 3.2X Import 7.1 Utility, or ArcToolBox. / To use coverage: ESRI ArcInfo, ArcView, ArcGIS 8.2, or ArcExplorer; AutoCAD 2002 Map or Land Development Desktop.
Metadata_Reference_Information:
Metadata_Date: 20031203
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: St. Johns River Water Management District
Contact_Position: GIS Data Manager, Information Resources Department
Contact_Address:
Address_Type: mailing address
Address: Post Office Box 1429
City: Palatka
State_or_Province: Florida
Postal_Code: 32178-1429
Country: USA
Contact_Voice_Telephone: (386) 329-4500
Contact_Electronic_Mail_Address: gis_support@sjrwmd.com
Hours_of_Service: 0800-1700 EST
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 Mon Mar 29 12:03:18 2004