National Agricultural Imagery Program (NAIP) Digital Orthorectified Images (DOQ), Minnesota, 2002

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


Metadata Summary

Originator U.S. Dept. of Agriculture, Farm Services Agency, Aerial Photography Field Office and the U.S. Army Corps of Engineers - St. Paul District
Abstract This data set contains photographic information obtained for the National Agricultural Imagery Program (NAIP) and is comprised of scanned photographs that were acquired with a precision aerial mapping camera at a nominal scale of 1:40,000 on color positive film. Acquisition was leaf-on with mature crops prior to harvest. Images have been orthorectified. NAIP imagery is quarter-quadrangle centered to provide consistent and repeatable coverage.

The original imagery is in GeoTIFF format. Two MrSID versions are also available, developed by the U.S. Army Corps of Engineers - St. Paul District for the USDA - Farm Services Agency. One version has one MrSID file per quarter-quad; the other version has one or several MrSID files per county and was created by mosaicking the quarter-quads together.
Browse Graphic View a sample of the data.
Time Period of Content Date 2002
Currentness Reference June 2002 through August 2002. Each quarter-quadrangle image filename includes the date on which the photo was taken. The metadata records that accompany each MrSID county mosaic file contain a range of dates for that county.
Access Constraints None
Use Constraints The Aerial Photography Field Office asks to be credited in derived products. Credit should also be given to the U.S. Army Corps of Engineers - St. Paul District for creating the MrSID versions.

DNR's Distribution Conditions: If downloading data from DNR's Data Deli, you will need to accept DNR's General Geographic Data License Agreement.

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 There are several options for obtaining NAIP 2002 imagery, depending on the format and file size you need:

1. MrSID county mosaics: these files 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 MrSID file format and contains direct links to download each county file.

2. MrSID quarter-quadrangles: these files are available via free download from the Minnesota Department of Natural Resources' Data Deli: http://deli.dnr.state.mn.us (choose 'acquire data' and then the 'Farm Services Agency (FSA) Color DOQs' layer).

3. GeoTIFF quarter quadrangles: obtain this imagery either from the APFO office in Salt Lake City or from the local FSA office:

- Aerial Photography Field Office: NAIP2002 imagery is $10 per CD. The number of CDs needed to cover each county is: Blue Earth 19, Brown 17, Cottonwood 19, Dakota 17, Dodge 14, Faribault 15, Fillmore 21, Freeborn 18, Goodhue 22, Houston 15, Jackson 18, Le Sueur 13, Lyon 20, Martin 18, Mower 16, Murray 21, Nicollet 16, Nobles 16, Olmsted 17, Pipestone 14, Redwood 24, Rice 14, Rock 12, Steele 14, Wabasha 16, Waseca 14, Watonwan 12, Winona 19. Contact APFO for more information on procedures for obtaining NAIP imagery:

Aerial Photography Field Office (APFO)
Supervisor Sales Services Branch
2222 West 2300 South
Salt Lake City, Utah
84119-2020
801-975-3503 (voice)
801-975-3532 (fax)
sales@apfo.usda.gov

- Contact the local Farm Services Agency office in your county of interest to see whether they distribute their county's NAIP imagery. Contact information is at the FSA's Office Information Locator: http://oip.usda.gov/scripts/ndisapi.dll/oip_agency/index?state=US&agency=FSA or check the blue government pages of the local phone book.


Note: A sample NAIP2002 GeoTIFF photo (77 mb, zipped) is posted at:
ftp://ftp.lmic.state.mn.us/pub/data/remote_sensing/naip/pickwick_sw_naip02.zip . It covers the Pickwick SW quarter-quad in Winona County, an area in southeastern Minnesota that has high topographic relief. The GeoTIFF file (4309105_SW_20020808.TIF) is accompanied by a header record (.TFW) and a metadata record for that specific photo.
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, 2002

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. Dept. of Agriculture, Farm Services Agency, Aerial Photography Field Office and the U.S. Army Corps of Engineers - St. Paul District
Title National Agricultural Imagery Program (NAIP) Digital Orthorectified Images (DOQ), Minnesota, 2002
Abstract This data set contains photographic information obtained for the National Agricultural Imagery Program (NAIP) and is comprised of scanned photographs that were acquired with a precision aerial mapping camera at a nominal scale of 1:40,000 on color positive film. Acquisition was leaf-on with mature crops prior to harvest. Images have been orthorectified. NAIP imagery is quarter-quadrangle centered to provide consistent and repeatable coverage.

The original imagery is in GeoTIFF format. Two MrSID versions are also available, developed by the U.S. Army Corps of Engineers - St. Paul District for the USDA - Farm Services Agency. One version has one MrSID file per quarter-quad; the other version has one or several MrSID files per county and was created by mosaicking the quarter-quads together.
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 2002
Currentness Reference June 2002 through August 2002. Each quarter-quadrangle image filename includes the date on which the photo was taken. The metadata records that accompany each MrSID county mosaic file contain a range of dates for that county.
Progress Complete
Maintenance and Update Frequency Irregular
Spatial Extent of Data 28 counties in southern Minnesota (note: the metadata records accompanying each MrSID county mosaic file contain the bounding box coordinates for that file).
Bounding Coordinates -96.5
-91.1
45.0
43.4
Place Keywords Blue Earth County, Brown County, Cottonwood County, Dakota County, Dodge County, Faribault County, Fillmore County, Freeborn County, Goodhue County, Houston County, Jackson County, Le Sueur County, Lyon County, Martin County, Mower County, Murray County, Nicollet County, Nobles County, Olmsted County, Pipestone County, Redwood County, Rice County, Rock County, Steele County, Wabasha County, Waseca County, Watonwan County, Winona County
Theme Keywords imageryBaseMapsEarthCover, Digital Orthorectified Image, Digital Orthophoto Quad, Ortho, Orthophoto, DOQ, NAIP, Compliance, Air Photo, 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. Credit should also be given to the U.S. Army Corps of Engineers - St. Paul District for creating the MrSID versions.

DNR's Distribution Conditions: If downloading data from DNR's Data Deli, you will need to accept DNR's General Geographic Data License Agreement.

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 Keith LeClaire, Cartographer
U.S. Army Corps of Engineers - St. Paul District Office
190 5th Street East
St. Paul, MN 55101-1638
Phone: 651-290-5491
FAX:
E-mail: keith.r.leclaire@usace.army.mil
Browse Graphic View a sample of the data.
Browse Graphic File Description Small portion of the Pickwick SW quarter-quad (in Winona County) sample image in JPG format; see Ordering Instructions to download the entire sample image in TIF format.
Associated Data Sets For information on other air photos available for Minnesota, 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
Logical Consistency None
Completeness None
Horizontal Positional Accuracy The positional accuracy for the digital data is tested by visual comparison to a data source with a higher order of accuracy. See Lineage for details.
Vertical Positional Accuracy N/A
Lineage Steps to produce the original NAIP 2002 imagery (Farm Services Agency):

The 1:40,000 color aerial photography film was used to produce a 1-meter ground sample distance image. The scanned images were ortho (differentially) rectified using U.S. Geological Survey 30-meter DEMs (digital elevation models), aero-triangulation and control from airborne GPS supplemented with photo-identifiable points from 1991-2 USGS digital orthophoto quads (DOQs) that had been mosaicked and compressed by USDA FSA. Horizontal accuracy specifications required that 90% of well defined test points on the ortho-rectified image match within 3 meters the same points on the mosaicked DOQs.


Steps to produce the MrSID files (U.S. Army Corps of Engineers - St. Paul District):

1. Copy GeoTIFF image files from FSA CDs to hard-drive.
2. Change file permissions (read/write).

Use Lizardtech's MrSID Workstation version 1.5 to create MrSID files as follows:

Quarter-quadrangle version:
3. Use the following MrSID compression options
a. Advanced Image Enhancement
G-Weight - 2
Weight - 2
b. Encode Settings
Encoding Ratio 20:1
Zoom Level 9
Target Thumbnail 20 Pixels
Block Size 512
4. Compress all original FSA TIFF files into individual MrSID images
5. Assign Projection/Datum to images (ESRI VBA Script)

County mosaic version:
6. Using original FSA TIFF files, generate MrSID mosaic
7. Use naming convention 'fsa_countyname_mosaic_2002.sid'
8. MrSID compression options: (Same as above except as noted below)
a. No Data
X input No Data 255 255 255
Y Input No Data 255 255 255
9. Assign Projection/Datum to mosaic (ESRI VBA Script)
Source Scale Denominator
 
Section 3 Spatial Data Organization Information Top of full metadata Top of page
Native Data Set Environment Unknown
Geographic Reference for Tabular Data
Spatial Object Type Raster
Vendor Specific Object Types
Tiling Scheme Quarter-quadrangle or county (some counties are divided into two or three tiles, usually north and south halves)
 
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 8-bit pixels represent brightness values 0 - 255
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 2002
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: 651-201-2488
FAX: 651-296-3698
E-mail: clearing.house@state.mn.us
Distributor's Data Set Identifier naip02
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. DNR: If downloading the data from DNR's Data Deli, you will need to accept DNR's General Geographic Data License Agreement.

3. 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 GeoTIFF (Color Positive) or MrSID
Transfer Format Version Number MrSID 1.5
Transfer Size Varies by image and by county. MrSID quarter-quads average 7 megabytes each. MrSID county files range from 110-425 mb each. The sample image described under 'Ordering Instructions' (Pickwick SW quarter-quad) is 137 mb.
Ordering Instructions There are several options for obtaining NAIP 2002 imagery, depending on the format and file size you need:

1. MrSID county mosaics: these files 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 MrSID file format and contains direct links to download each county file.

2. MrSID quarter-quadrangles: these files are available via free download from the Minnesota Department of Natural Resources' Data Deli: http://deli.dnr.state.mn.us (choose 'acquire data' and then the 'Farm Services Agency (FSA) Color DOQs' layer).

3. GeoTIFF quarter quadrangles: obtain this imagery either from the APFO office in Salt Lake City or from the local FSA office:

- Aerial Photography Field Office: NAIP2002 imagery is $10 per CD. The number of CDs needed to cover each county is: Blue Earth 19, Brown 17, Cottonwood 19, Dakota 17, Dodge 14, Faribault 15, Fillmore 21, Freeborn 18, Goodhue 22, Houston 15, Jackson 18, Le Sueur 13, Lyon 20, Martin 18, Mower 16, Murray 21, Nicollet 16, Nobles 16, Olmsted 17, Pipestone 14, Redwood 24, Rice 14, Rock 12, Steele 14, Wabasha 16, Waseca 14, Watonwan 12, Winona 19. Contact APFO for more information on procedures for obtaining NAIP imagery:

Aerial Photography Field Office (APFO)
Supervisor Sales Services Branch
2222 West 2300 South
Salt Lake City, Utah
84119-2020
801-975-3503 (voice)
801-975-3532 (fax)
sales@apfo.usda.gov

- Contact the local Farm Services Agency office in your county of interest to see whether they distribute their county's NAIP imagery. Contact information is at the FSA's Office Information Locator: http://oip.usda.gov/scripts/ndisapi.dll/oip_agency/index?state=US&agency=FSA or check the blue government pages of the local phone book.


Note: A sample NAIP2002 GeoTIFF photo (77 mb, zipped) is posted at:
ftp://ftp.lmic.state.mn.us/pub/data/remote_sensing/naip/pickwick_sw_naip02.zip . It covers the Pickwick SW quarter-quad in Winona County, an area in southeastern Minnesota that has high topographic relief. The GeoTIFF file (4309105_SW_20020808.TIF) is accompanied by a header record (.TFW) and a metadata record for that specific photo.
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.lmic.state.mn.us/gc/stds/metadata.htm


This page last updated: 05/26/2009