Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: USDA-FSA Aerial Photography Field Office
Title: Index of source acquisition dates.
Publication_Date: 20050911
Edition: Version
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Salt Lake City, Utah
Publisher: USDA-FSA Aerial Photography Field Office
Description:
Abstract:
This data set contains lines and/or polygons delineating the
boundary between DOQQ imagery used in the creation of a
compressed county mosaic (CCM). The DOQQ and CCM products
were created from imagery acquired in the National Agriculture
Imagery Program (NAIP). These boundary lines can be used as a
tool in determining the image source and date of each portion
of the CCM. The boundary lines separating each DOQQ may be
the actual seam line location or an approximation. This is
because the various vendors acquiring and processing the data
use different algorithms to create the DOQQ and CCM products.
Since the seam line may be an approximation, portions of the
CCM along the boundary may actually come from the imagery
on the other side of the seam line.
The NAIP acquires digital ortho imagery during the agricultural
growing seasons in the continental U.S.. A primary goal of
the NAIP program is to enable availability of ortho imagery
within a year of acquisition. NAIP provides two main products:
1 meter ground sample distance (GSD) ortho imagery rectified
to a horizontal accuracy of within +/- 5 meters of reference
digital ortho quarter quads (DOQQ's) from the National Digital
Ortho Program (NDOP); and, 2 meter GSD ortho imagery rectified
to within +/- 10 meters of reference DOQQs. The tiling format
of NAIP imagery is based on a 3.75' x 3.75' quarter quadrangle
with a 300 meter buffer on all four sides. NAIP quarter quads
are formatted to the UTM coordinate system using NAD83. NAIP
imagery may contain as much as 10% cloud cover per tile.
Purpose:
This index will aid USDA Service Centers in identifying
and delineating source acquisition date boundaries for the
compressed county mosaic as they administer USDA programs
for their customers.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20050911
Currentness_Reference: ESRI shapefile creation date.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -120.069995
East_Bounding_Coordinate: -119.055110
North_Bounding_Coordinate: 45.941922
South_Bounding_Coordinate: 44.933113
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Digital
Theme_Keyword: Mosaic
Theme_Keyword: ortho imagery
Theme_Keyword: United States Department of Agriculture (USDA)
Theme_Keyword: Farming
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: USA
Place_Keyword: FSA
Place_Keyword: Field Service Center
Place_Keyword: Aerial Photography Field Office
Place_Keyword: APFO
Place_Keyword: USDA
Place_Keyword: United State Department of Agriculture (USDA)
Place_Keyword: MORROW CO., OR FSA
Place_Keyword: FIPS 41049
Place_Keyword: MORROW
Place_Keyword: Oregon
Access_Constraints: None
Use_Constraints:
None, The Aerial Photography Field Office asks to be credited
in derived products.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA-FSA Aerial Photography Field Office
Contact_Address:
Address_Type: mailing and physical
Address: 2222 West 2300 South
City: Salt Lake City
State_or_Province: Utah
Postal_Code: 84119-2020
Contact_Voice_Telephone: 801-975-3500
Contact_Electronic_Mail_Address: sales@apfo.usda.gov
Native_Data_Set_Environment: Win32 on Windows NT, Version 5.0, Build 2195, Service Pack 4
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
All data have been reviewed for correct application of
attributes and are accurate to current conditions.
Logical_Consistency_Report:
Polygon and chain-node topology present, no additional checks
for topological consistency were performed on this data set.
Attribution of the digital data set includes polygon areas
that define quarter quadrangle polygon boundaries.
Completeness_Report:
This digital data set is complete with no required elements
left unrepresented according to contract specifications.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: None
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: USDA-FSA Aerial Photography Field Office
Publication_Date: 20050911
Title: Index of source acquisition dates.
Geospatial_Data_Presentation_Form: Vector Digital Data
Source_Scale_Denominator: 7920
Type_of_Source_Media: DVD
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20050911
Source_Currentness_Reference:
Majority Year for Quarter Quadrangle source acquisition dates.
Source_Citation_Abbreviation: NAIP
Source_Contribution:
Collection date of source image data.
Process_Step:
Process_Description: This ESRI shape file was created using
custom-developed software and the freeware 'shapelib'
library. The list of quarter quandrangles was extracted from
government-furnished information. The extent of the quarter
quadrangle polygons is based the computation of UTM coordinates
from the government-furnished geographic bounds. The
ordering scheme for insertion of the digital orthophotos is
based on a last-in-last-on-top scheme.
Source_Used_Citation_Abbreviation: NAIP
Process_Date: 20050911
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: None
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: 209
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 11
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -117.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000064
Ordinate_Resolution: 0.000064
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: dBase file (.dbf)
Entity_Type_Definition:
The dBASE file that stores the attribute information of
features. When a shapefile is added as a theme to a view,
this file is displayed as a feature table.
Entity_Type_Definition_Source: ESRI OnLine Help
Attribute:
Attribute_Label: QQName
Attribute_Definition:
Digital Orthophoto Quarter Quadrangle map name includes
the quadrant locator e.g.(NE,NW,SE,SW).
Attribute_Definition_Source: USDA-FSA Aerial Photography Field Office
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Geographic Names Information System
Codeset_Source: U.S. Geological Survey
Attribute:
Attribute_Label: IDAT
Attribute_Definition: Quarter Quadrangle source acquisition date.
Attribute_Definition_Source: USDA-FSA Aerial Photography Field Office
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Acquisition dates for source imagery.
Codeset_Source: Calender dates. YYYY-MM-DD
Attribute:
Attribute_Label: BCON
Attribute_Definition: Acquisition collection medium.
Attribute_Definition_Source: USDA-FSA Aerial Photography Field Office
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Identifies the acquisition medium. (NC,CIR)
NC - Natural Color, CIR - Color Infra Red
Codeset_Source:
USDA-FSA Aerial Photography Field Office Contract Specification.
Attribute:
Attribute_Label: DOQQ
Attribute_Definition:
Identifies the image according to image type, latitude,
longitude, quadrangle number, and quadrant.
- image type: Natural Color (n), Color Infra Red (c)
- latitude: Degree of Latitude
- longitude: Degree of Longitude
- quadrangle number: 7.5'x7.5' cell identifier for 1 degree block
- quadrant: quadrant locator in a 7.5'x7.5' cell
Attribute_Definition_Source: USDA-FSA Aerial Photography Field Office
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: sample name "n4210337.nw"
Codeset_Source:
USDA-FSA Aerial Photography Field Office Contract Specification.
Attribute:
Attribute_Label: QKEY
Attribute_Definition:
Identifies the image according to the south east corner
coordinates value.
Attribute_Definition_Source: USDA-FSA Aerial Photography Field Office
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: sample name "422615N1032615W"
Codeset_Source:
USDA-FSA Aerial Photography Field Office Contract Specification.
Overview_Description:
Entity_and_Attribute_Overview:
Entity Name Type Length Precision Scale
---------------- -------- ------ --------- -----
OID ObjectID 4 0 0
Shape Polygon
QQName String 50 0 0
BCON String 20 0 0
IDAT String 10 0 0
DOQQ String 12 0 0
QKEY String 15 0 0
Entity_and_Attribute_Detail_Citation:
USDA-FSA Aerial Photography Field Office Contract Specifications.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA-FSA Aerial Photography Field Office
Contact_Address:
Address_Type: mailing address
Address: 2222 West 2300 South
City: Salt Lake City
State_or_Province: Utah
Postal_Code: 84119-2020
Contact_Voice_Telephone: 801-975-3500
Contact_Facsimile_Telephone: 801-975-3529
Contact_Electronic_Mail_Address: sales@apfo.usda.gov
Distribution_Liability:
In no event shall the creators, custodians, or distributors of this
information be liable for any damages arising out of its use
(or the inability to use it).
Metadata_Reference_Information:
Metadata_Date: 20050911
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA-FSA Aerial Photography Field Office
Contact_Address:
Address_Type: mailing address
Address: 2222 West 2300 South
City: Salt Lake City
State_or_Province: Utah
Postal_Code: 84119-2020
Contact_Voice_Telephone: 801-975-3500
Contact_Electronic_Mail_Address: sales@apfo.usda.gov
Metadata_Standard_Name: FGDC Content Standards for Digital
Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None