National Agricultural Imagery Program (NAIP) Digital Orthorectified Images (DOQ), Minnesota, 2003-04

This page last updated: 03/22/2018
Metadata created using Minnesota Geographic Metadata Guidelines


Go to Section:
1. Overview
2. Data Quality
3. Data Organization
4. Coordinate System
5. Attributes
6. Distribution - Get Data
7. Metadata Reference

Section 1 Overview
Originator U.S. Department of Agriculture, Farm Service Agency, Aerial Photography Field Office
Title National Agricultural Imagery Program (NAIP) Digital Orthorectified Images (DOQ), Minnesota, 2003-04
Abstract This data set contains natural color imagery from the National Agricultural Imagery Program (NAIP) and is comprised of scanned photographs that were acquired on color positive film. 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 +/- 3 meters of reference digital ortho quarter quads (DOQQ's) from the National Digital Ortho Program (NDOP). 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 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. MrSID compression, with mosaic option, was used.

(Note: The Minnesota Geospatial Information Office has created this metadata record to describe the entire NAIP2003-04 dataset, using information from Farm Service Agency metadata provided in 2003 and 2004. Each county file is accompanied by the original FSA metadata for that county.)
Purpose NAIP imagery serves as a base for Farm Service Center GIS applications and is used to administer USDA commodity support programs and conservation planning. The MrSID mosaics were compiled to provide a data format that is highly compressed (20:1) with minimal data loss.
Time Period of Content Date 2003
Currentness Reference Summer 2003 or Summer 2004. If an area of a county could not be flown in 2003, it was filled with Summer 2004 imagery. To see the quarter-quadrangles missed in 2003, look at a list: http://www.mngeo.state.mn.us/chouse/airphoto/naip03notflown_list.html
or a map: http://www.mngeo.state.mn.us/chouse/airphoto/naip03flown_map.html

See the quarter-quad boundary shapefile accompanying each county mosaic to find out the date that the source imagery was acquired.
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 The Aerial Photography Field Office asks to be credited in derived products.

Redistribution conditions: In obtaining this data from MnGeo, it is understood that you and/or your organization have the right to use it for any purpose. If you modify it, you are encouraged to apply responsible best practices by documenting those changes in a metadata record. If you transmit or provide the data to another user, it is your responsibility to provide appropriate content, limitation, warranty and liability information as you see fit.
Contact Person Information ,
Aerial Photography Field Office (APFO)
2222 West 2300 South
Salt Lake City, Utah  84119-2020
Phone: 801-975-3500
Fax: 801-975-3532
Email: sales@apfo.usda.gov
Browse Graphic Click to view a data sample.
Oxbow lakes formed along the Red River of the North, Clay and Wilkin Counties, west-central Minnesota.
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 MrSID 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.mngeo.state.mn.us/chouse/airphoto/index.html

Section 2 Data Quality
Attribute Accuracy Color and tonal differences between the individual scanned images that were apparent in the interim version of the NAIP2003 data set have been largely corrected. Details about the procedure used are not available. Areas that were filled in with 2004 imagery have a different color balance and generally appear more yellow-green than the 2003 imagery.

NAIP imagery may contain as much as 10% cloud cover per tile.
Logical Consistency N/A
Completeness Some parts of the state, primarily areas in Lake and Cook Counties, could not be photographed in 2003 due to poor weather conditions. Nearly all of these areas have been filled with 2004 imagery.

For a list of the quarter-quadrangles missed in 2003 see:
http://www.mngeo.state.mn.us/chouse/airphoto/naip03notflown_list.html

For a map showing the location of the quarter-quadrangles missed in 2003, see:
http://www.mngeo.state.mn.us/chouse/airphoto/naip03flown_map.html
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 +/- 3 meters of reference digital ortho quarter quads (DOQQ's) from the National Digital Ortho Program (NDOP).
Vertical Positional Accuracy N/A
Lineage This file was generated by compressing 1 meter NAIP 2003 and 2004 quarter quadrangle imagery tiles that cover a county. MrSID compression, with mosaic option, was used. Target values for the compression ratio are (50:1) and compression levels(9) are used.

Section 3 Spatial Data Organization (not used in this metadata)

Section 4 Coordinate System
Horizontal Coordinate Scheme Universal Transverse Mercator
UTM Zone Number 15
Horizontal Datum NAD83
Horizontal Units meters
Cell Width 1
Cell Height 1

Section 5 Attributes
Overview 2003 FSA metadata: 8-bit pixels represent brightness values 0 - 255

2004 FSA metadata: 24-bit pixels, 3 band color (RGB) values 0 - 255
Detailed Citation None
Table Detail:

Section 6 Distribution
Publisher Minnesota Geospatial Information Center (MnGeo)
Publication Date 01/2006
Contact Person Information Nancy Rader, GIS Data Specialist
Minnesota Geospatial Information Office (MnGeo)
658 Cedar Street, Room 300
St. Paul, MN  55155
Phone: 651-201-2489
Email: gisinfo.mngeo@state.mn.us
Distributor's Data Set Identifier NAIP 2003-04
Distribution Liability 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).

MnGeo's data disclaimer is online: http://www.mngeo.state.mn.us/chouse/disclaimer.html
Ordering Instructions The imagery is available free online by clicking below after Online Linkage. This link will take you to a webpage that contains direct links to:

1. View the files seamlessly via a WMS service without having to download the files.

2. Download the MrSID county mosaics.
Online Linkage I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details.

Section 7 Metadata Reference
Metadata Date 03/22/2018
Contact Person Information Nancy Rader, GIS Data Specialist
Minnesota Geospatial Information Office (MnGeo)
658 Cedar Street, Room 300
St. Paul, MN  55155
Phone: 651-201-2489
Email: gisinfo.mngeo@state.mn.us
Metadata Standard Name Minnesota Geographic Metadata Guidelines
Metadata Standard Version 1.2
Metadata Standard Online Linkage http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm


This page last updated: 03/22/2018
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