Index of Acquisition Dates for NAIP Digital Orthorectified Images (DOQ), Minnesota, 2008

This page last updated: 08/13/2009
Metadata created using Minnesota Geographic Metadata Guidelines


Metadata Summary

Originator USDA-FSA Aerial Photography Field Office
Abstract This data set contains lines and/or polygons delineating the boundary between DOQQ imagery used in the creation of 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.

NAIP acquires digital ortho imagery during the agricultural growing seasons in the continental U.S.. The tiling format of NAIP imagery is based on a 3.75 minute x 3.75 minute quarter quadrangle with a 300 meter buffer on all four sides. NAIP quarter quads are formatted to the UTM coordinate system using NAD83.

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Note: The Minnesota Land Management Information Center has modified the original metadata for this file from the Farm Service Agency's Aerial Photography Field Office to change fields such as the distributor.
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Browse Graphic none available
Time Period of Content Date 12/04/2008
Currentness Reference ESRI shapefile creation date.
Access Constraints None
Use Constraints None. The Aerial Photography Field Office asks to be credited in derived products.
Distributor Organization Land Management Information Center
Ordering Instructions This data set is distributed on the internet by clicking below after Online Linkage. Doing so will tell your browser to start downloading a 'ZIP' file which will contain the following:

- Shapefile: naip08_date (.shp, .shx, .dbf, .prj)
- Documentation (.html, .xml, .lgr) file for the data set
- Original FSA APFO documentation (.shp.xml)
- NOTICE.RTF, an important notice about this data set that can be read by most word processing software, and an ascii text version of the same notice (NOTICE.TXT)

After unzipping this file, you can then delete files that you do not need, if any. For help with unzipping, see: http://www.gda.state.mn.us/resource.html?Id=16253#compress
Online Linkage Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" in Section 6 of this metadata.

Full Metadata

Index of Acquisition Dates for NAIP Digital Orthorectified Images (DOQ), Minnesota, 2008

Go to Section:
1. Identification Information
2. Data Quality Information
3. Spatial Data Organization Information
4. Spatial Reference Information
5. Entity and Attribute Information
6. Distribution Information
7. Metadata Reference Information

 
Section 1 Identification Information   Top of page
Originator USDA-FSA Aerial Photography Field Office
Title Index of Acquisition Dates for NAIP Digital Orthorectified Images (DOQ), Minnesota, 2008
Abstract This data set contains lines and/or polygons delineating the boundary between DOQQ imagery used in the creation of 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.

NAIP acquires digital ortho imagery during the agricultural growing seasons in the continental U.S.. The tiling format of NAIP imagery is based on a 3.75 minute x 3.75 minute quarter quadrangle with a 300 meter buffer on all four sides. NAIP quarter quads are formatted to the UTM coordinate system using NAD83.

---------------
Note: The Minnesota Land Management Information Center has modified the original metadata for this file from the Farm Service Agency's Aerial Photography Field Office to change fields such as the distributor.
---------------
Purpose This index will aid U.S. Department of Agriculture 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 Date 12/04/2008
Currentness Reference ESRI shapefile creation date.
Progress Complete
Maintenance and Update Frequency Irregular
Spatial Extent of Data Minnesota
Bounding Coordinates -97.5
-89
49.5
43
Place Keywords Minnesota
Theme Keywords imageryBaseMapsEarthCover, Digital Orthorectified Image, Digital Orthophoto Quad, Ortho, Orthophoto, DOQ, NAIP, Compliance, Air Photo, Air Photography, Aerial Photo, Aerial Photography
Theme Keyword Thesaurus ISO 19115 Topic Category
Access Constraints None
Use Constraints None. The Aerial Photography Field Office asks to be credited in derived products.
Contact Person Information ,
USDA-Farm Service Agency, Aerial Photography Field Office
2222 West 2300 South
Salt Lake City, Utah 84119-2020
Phone: 801-844-2922
FAX: 801-956-3653
E-mail: apfo.sales@slc.usda.gov
Browse Graphic none available
Browse Graphic File Description
Associated Data Sets For information on Minnesota NAIP 2008 air photos, including options for viewing and downloading the imagery, see http://www.lmic.state.mn.us/chouse/airphoto/naip08.html

For information on other air photos available for Minnesota, including other years of NAIP imagery, see http://www.lmic.state.mn.us/chouse/airphoto/index.html

 
Section 2 Data Quality Information Top of full metadata Top of page
Attribute Accuracy All data have been reviewed for correct application of attributes and are accurate to current conditions.

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.
Logical Consistency 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 This digital data set is complete with no required elements left unrepresented according to contract specifications.
Horizontal Positional Accuracy None
Lineage This ESRI shapefile was created by the Aerial Photography Field Office 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 on 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 Scale Denominator 7920
 
Section 3 Spatial Data Organization Information Top of full metadata Top of page
Native Data Set Environment Win32 on Windows NT, Version 5.1, Build 2600, Service Pack 2
Geographic Reference for Tabular Data None
Spatial Object Type Vector
Vendor Specific Object Types Polygon
Tiling Scheme State
 
Section 4 Spatial Reference Information Top of full metadata Top of page
Horizontal Coordinate Scheme UTM
Ellipsoid Geodetic Reference System 80
Horizontal Datum NAD83
Horizontal Units Meters
Distance Resolution
UTM Zone Number 15E
 
Section 5 Entity and Attribute Information Top of full metadata Top of page
Entity and Attribute Overview QQName: Name of the quarter-quad
BCON: Acquisition medium (M = multi band imagery)
IDAT: Date the quarter-quad was flown
DOQQ: Quarter quad code made up of:
- image type: m = 4-band
- degree of latitude
- degree of longitude
- quadrangle number: 7.5 minute x 7.5 minute cell identifier for 1 degree block
- quadrant: ne, nw, se or sw
QKEY: latitude and longitude of the southeast corner

Entity Name Type Length Precision Scale
---------------- -------- ------ --------- -----
OID ObjectID 4 0 0
Shape Polygon
QQName String 55 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 Detailed Citation USDA-FSA Aerial Photography Field Office Contract Specifications.
 
Section 6 Distribution Information Top of full metadata Top of page
Publisher USDA-FSA Aerial Photography Field Office
Publication Date 12/04/2008
Contact Person Information Nancy Rader
GIS Data Coordinator
Land Management Information Center
658 Cedar Street, Room 300
St. Paul, MN 55155
Phone: 651-201-2489
FAX: 651-296-3698
E-mail: clearing.house@state.mn.us
Distributor's Data Set Identifier NAIP 2008 flight dates
Distribution Liability 1. FSA Liability Statement: 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).

2. LMIC: DISTRIBUTION LIABILITY STATEMENT
For data or maps delivered online or by physical media by the Land Management Information Center

Limitations: Although extensive effort has been made to produce error-free and complete data, all geographic information has limitations due to the scale, resolution, date and interpretation of the original source materials. Users should consult available data documentation (metadata) for this particular data to determine limitations and the precision to which the data depict distance, direction, location or other geographic characteristics. Data may be subject to change without prior notification.

No warranty: Data is provided as is, without any warranty whatsoever, including but not limited to any warranty as to performance, merchantability or fitness for any particular purpose.

Liability: The entire risk as to the results of the use of this data is assumed by the user. LMIC is not responsible for any interpretation or conclusions made by those who acquire or use it. LMIC shall not be liable for any direct, indirect, special, incidental, compensatory or consequential damages or third-party claims resulting from the use of this data, even if LMIC has been advised of the possibility of such potential loss or damage. In states that do not allow the exclusion or limitation of incidental or consequential damages, this data may not be used.

Redistribution conditions: In obtaining this data from LMIC, it is understood that individuals or organizations have the right to use it for any internal purpose. If data is modified, changes should be documented in a metadata record that should accompany all redistributed data. If data is transmitted or provided in any form to another user, the data must be accompanied by a copy of this disclaimer and all documentation provided with the original data set, including the full metadata record.

Data delivered on electronic media: If data has been requested from LMIC on magnetic media, CD or any other physical media, LMIC will deliver it in the computer-readable format agreed upon with the requestor. LMIC will reissue data if it is unreadable by correctly adjusted computer input devices or when the media is delivered in a damaged condition. Requests for reissue of this digital data product must be made within 30 days of the date shipped from LMIC.
Transfer Format Name Shapefile
Transfer Format Version Number
Transfer Size 0.5 MB
Ordering Instructions This data set is distributed on the internet by clicking below after Online Linkage. Doing so will tell your browser to start downloading a 'ZIP' file which will contain the following:

- Shapefile: naip08_date (.shp, .shx, .dbf, .prj)
- Documentation (.html, .xml, .lgr) file for the data set
- Original FSA APFO documentation (.shp.xml)
- NOTICE.RTF, an important notice about this data set that can be read by most word processing software, and an ascii text version of the same notice (NOTICE.TXT)

After unzipping this file, you can then delete files that you do not need, if any. For help with unzipping, see: http://www.gda.state.mn.us/resource.html?Id=16253#compress
Online Linkage Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" above.
 
Section 7 Metadata Reference Information Top of full metadata Top of page
Metadata Date 08/13/2009
Contact Person Information Nancy Rader, GIS Data Coordinator
Land Management Information Center
658 Cedar Street, Room 300
St. Paul, MN 55155
Phone: 651-201-2489
FAX: 651-296-3698
E-mail: clearing.house@state.mn.us
Metadata Standard Name Minnesota Geographic Metadata Guidelines
Metadata Standard Version 1.2
Metadata Standard Online Linkage http://www.gis.state.mn.us/stds/metadata.htm


This page last updated: 08/13/2009