National Agricultural Imagery Program (NAIP) Digital Orthorectified Images (DOQ), Minnesota, 2008

This page last updated: 05/26/2009
Metadata created using Minnesota Geographic Metadata Guidelines


Metadata Summary

Originator U.S. Department of Agriculture, Farm Service Agency, Aerial Photography Field Office
Abstract This data set contains 4-band (natural color plus infrared) imagery from the National Agricultural Imagery Program (NAIP). 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 one year of acquisition.

The source files are 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) or from NAIP. 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.

This file was generated by compressing NAIP quarter quadrangle tiles that cover a county. JPEG2000 compression was used. Target values for the compression ratio are (15:1).

(Note: The Land Management Information Center has created this metadata record to describe the entire NAIP2008 dataset, using information from Farm Service Agency metadata. Each county file is accompanied by the original FSA metadata for that county.)
Browse Graphic View a sample of the data.
Time Period of Content Date 2008
Currentness Reference May through September 2008. See the accompanying quarter-quad boundary shapefile for each county to find out the date(s) that the source imagery was acquired.
Access Constraints None
Use Constraints The Aerial Photography Field Office asks to be credited in derived products.

Imagery may be replaced to address defects found in a small number of products through quality assurance processes. Imagery containing defects that require the acquisition of new imagery, such as excessive cloud cover, specular reflectance, etc., will not be replaced within a NAIP project year.

LMIC's Redistribution Conditions: If you obtain data from LMIC, it is understood that you and/or your organization have the right to use them for any internal purpose. If you modify them, you should document those changes in a metadata record that should accompany all redistributed data. If you transmit or provide these data in any form to another user, the data MUST be accompanied by a copy of LMIC's disclaimer NOTICE.TXT and all documentation provided with the original data set including the full metadata record.
Distributor Organization Minnesota Land Management Information Center (LMIC)
Ordering Instructions 1. County Mosaics:

The county mosaics are available via free download from the internet by clicking below after Online Linkage. This link will take you to a webpage that explains more about the JPEG2000 file format and contains direct links to download each county file.

2. Web Map Service (WMS):

The first three bands (displayed as natural-color) are available via WMS from LMIC's Geospatial Image Server:
http://www.lmic.state.mn.us/chouse/wms_image_server_description.html
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

National Agricultural Imagery Program (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 U.S. Department of Agriculture, Farm Service Agency, Aerial Photography Field Office
Title National Agricultural Imagery Program (NAIP) Digital Orthorectified Images (DOQ), Minnesota, 2008
Abstract This data set contains 4-band (natural color plus infrared) imagery from the National Agricultural Imagery Program (NAIP). 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 one year of acquisition.

The source files are 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) or from NAIP. 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.

This file was generated by compressing NAIP quarter quadrangle tiles that cover a county. JPEG2000 compression was used. Target values for the compression ratio are (15:1).

(Note: The Land Management Information Center has created this metadata record to describe the entire NAIP2008 dataset, using information from Farm Service Agency metadata. Each county file is accompanied by the original FSA metadata for that county.)
Purpose NAIP imagery is available for distribution within 60 days of the end of a flying season and is intended to provide current information of agricultural conditions in support of USDA farm programs. For USDA Farm Service Agency, the 1 meter GSD product provides an ortho image base for Common Land Unit boundaries and other data sets. The 1 meter NAIP imagery is generally acquired in projects covering full states in cooperation with state government and other federal agencies who use the imagery for a variety of purposes including land use planning and natural resource assessment. With an annual cycle, NAIP is also used for disaster response often providing the most current pre-event imagery.
Time Period of Content Date 2008
Currentness Reference May through September 2008. See the accompanying quarter-quad boundary shapefile for each county to find out the date(s) that the source imagery was acquired.
Progress In work
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 The Aerial Photography Field Office asks to be credited in derived products.

Imagery may be replaced to address defects found in a small number of products through quality assurance processes. Imagery containing defects that require the acquisition of new imagery, such as excessive cloud cover, specular reflectance, etc., will not be replaced within a NAIP project year.

LMIC's Redistribution Conditions: If you obtain data from LMIC, it is understood that you and/or your organization have the right to use them for any internal purpose. If you modify them, you should document those changes in a metadata record that should accompany all redistributed data. If you transmit or provide these data in any form to another user, the data MUST be accompanied by a copy of LMIC's disclaimer NOTICE.TXT and all documentation provided with the original data set including the full metadata record.
Contact Person Information Supervisor Customer Service Section, Customer Service Section
Aerial Photography Field Office (APFO)
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 View a sample of the data.
Browse Graphic File Description Portion of Nicollet County photo along Minnesota River, displaying bands 1, 2, and 4 (color-infrared) showing vegetation as red.
Associated Data Sets A shapefile, with its associated metadata, is included with this dataset. It shows polygons delineating the boundary between DOQQ imagery used in the creation of the county NAIP file and attributes such as the source date of the imagery.

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 NAIP imagery may contain as much as 10% cloud cover per tile.
Logical Consistency N/A
Completeness No report.
Horizontal Positional Accuracy FSA Digital Orthophoto Specs. The quarter-quad files are 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) or from NAIP.
Vertical Positional Accuracy N/A
Lineage This Compressed County Mosaic was generated to JPEG 2000 (jp2) specifications using a target compression ratio of 15:1. All photography was acquired using digital mapping cameras and accompanied by the collection of airborne Global Positioning System (GPS) data. Orthorectification was performed with custom software and the USGS National Elevation Dataset was used for the elevation model. Digital orthophotos were radiometrically balanced in groups of 100-500 images using the Inpho OrthoVista product. Custom software automatically generated the jp2 project parameter file to control the insertion of the digital orthophotos in the final mosaic. The ordering scheme of the digital orthophotos is based on a last-in-last-on-top scheme.
Source Scale Denominator
 
Section 3 Spatial Data Organization Information Top of full metadata Top of page
Native Data Set Environment Win32 on Windows NT, Version 5.2, Build 3790, Service Pack 1
Geographic Reference for Tabular Data
Spatial Object Type Raster
Vendor Specific Object Types
Tiling Scheme County
 
Section 4 Spatial Reference Information Top of full metadata Top of page
Horizontal Coordinate Scheme UTM
Ellipsoid GRS80
Horizontal Datum NAD83
Horizontal Units Meters
Distance Resolution
Altitude Datum Not applicable
Depth Datum Not applicable
Cell Width 1
Cell Height 1
UTM Zone Number 14 or 15
 
Section 5 Entity and Attribute Information Top of full metadata Top of page
Entity and Attribute Overview Imagery has 4 bands. Band 4 captures the near infrared.
Entity and Attribute Detailed Citation None
 
Section 6 Distribution Information Top of full metadata Top of page
Publisher Minnesota Land Management Information Center (LMIC)
Publication Date 09/2008
Contact Person Information Nancy Rader
GIS Data Coordination Specialist
Minnesota Land Management Information Center (LMIC)
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
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 JPEG2000
Transfer Format Version Number
Transfer Size Varies by county. Each county file is several hundred megabytes; the size is listed on the download page. Large counties may be distributed as 2 or more files.
Ordering Instructions 1. County Mosaics:

The county mosaics are available via free download from the internet by clicking below after Online Linkage. This link will take you to a webpage that explains more about the JPEG2000 file format and contains direct links to download each county file.

2. Web Map Service (WMS):

The first three bands (displayed as natural-color) are available via WMS from LMIC's Geospatial Image Server:
http://www.lmic.state.mn.us/chouse/wms_image_server_description.html
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 05/26/2009
Contact Person Information Nancy Rader, GIS Data Coordination Specialist
Minnesota Land Management Information Center (LMIC)
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: 05/26/2009