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This page last updated: 05/26/2009
Metadata created using Minnesota Geographic Metadata Guidelines
| Originator | Land Management Information Center |
| Abstract | The Atlas Team at LMIC has produced a complete set of FSA 2003 air photos as 8-bit gray scale GeoTIFFs. The data have been derived from the National Agricultural Imagery Program (NAIP) 2003 color orthophotography from the USDA Farm Service Agency. The parent data set for the 8-bit gray scale imagery is the photographic information obtained for the National Agricultural Imagery Program (NAIP) for 2003 and is comprised of scanned photographs that were acquired 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. For information about the parent data set see http://www.lmic.state.mn.us/chouse/metadata/naip03.html |
| Browse Graphic | View a sample of the data. |
| Time Period of Content Date | 2003 |
| Currentness Reference | Summer 2003 |
| Access Constraints | None |
| Use Constraints | The Aerial Photography Field Office asks to be credited in derived products. 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 | For information on purchasing 8-bit gray scale GeoTIFFs on DVD, contact distributor. Information about this and related products will be provided from LMIC's 'GIS Desktop Solutions' web page. See http://www.lmic.state.mn.us/EPPL7 |
| Online Linkage | none available |
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 | Land Management Information Center | |||
| Title | National Agricultural Imagery Program (NAIP) Digital Orthorectified Images, Minnesota, 2003, converted to 8-bit gray scale GeoTIFF format | |||
| Abstract | The Atlas Team at LMIC has produced a complete set of FSA 2003 air photos as 8-bit gray scale GeoTIFFs. The data have been derived from the National Agricultural Imagery Program (NAIP) 2003 color orthophotography from the USDA Farm Service Agency. The parent data set for the 8-bit gray scale imagery is the photographic information obtained for the National Agricultural Imagery Program (NAIP) for 2003 and is comprised of scanned photographs that were acquired 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. For information about the parent data set see http://www.lmic.state.mn.us/chouse/metadata/naip03.html |
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| Purpose | The 8-bit gray scale GeoTIFF air photo data set was produced specifically to support the DNR FireWise Project by (1) improving the detail resolution and feature contrast; (2) maintaining the imagery in a generic format; and (3) reducing the file size from the original 3-band, colorized imagery. FireWise addresses the risk of wildland fire to homes in the wildland/urban interface. The imagery can support a wide variety of applications in other software environments. Users of the AtlasGDS desktop product can access the files directly to build a seamless image for any area in the state. AtlasGDS and LMIC's other raster-based desktop GIS products are described at http://www.lmic.state.mn.us/EPPL7 | |||
| Time Period of Content Date | 2003 | |||
| Currentness Reference | Summer 2003 | |||
| Progress | In work | |||
| Maintenance and Update Frequency | Unknown | |||
| Spatial Extent of Data | Minnesota | |||
| Bounding Coordinates | -97.5 -89 49.5 43 |
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| Place Keywords | Minnesota | |||
| Theme Keywords | imageryBasemapsEarthCover, Imagery, 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. 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. |
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| Contact Person Information | Ken Pekarek,
EPPL7-EPIC-Atlas Coordinator Land Management Information Center 658 Cedar Street, Room 300 St. Paul, Minnesota 55155 Phone: 651.201-2499 FAX: 651.296.3698 E-mail: gisinfo.mngeo@state.mn.us | |||
| Browse Graphic | View a sample of the data. | |||
| Browse Graphic File Description | Oxbow lakes formed along the Red River of the North, Clay and Wilkin Counties, west-central Minnesota | |||
| Associated Data Sets | 1. NAIP 2003 Digital Orthorectified (DOQ) 24-bit color images: http://www.lmic.state.mn.us/chouse/metadata/naip03.html 2. For information on other air photos available for Minnesota, see http://www.lmic.state.mn.us/chouse/airphoto/index.html |
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| Section 2 | Data Quality Information | Top of full metadata | Top of page | |
| Attribute Accuracy | The NAIP 2003 color imagery is made up of red, green and blue color bands. When converting to a gray scale representation, the red band was chosen without modification because it produced a good black and white aerial photography representation and because it proved to be the most useful for the differentiation of trees and houses. This was of primary importance to the DNR FireWise project. | |||
| Logical Consistency | N/A | |||
| Completeness | Some parts of the state, primarily areas in Lake and Cook Counties, could not be photographed due to poor weather conditions. For a list of the missing quarter-quadrangles see: http://www.lmic.state.mn.us/chouse/naip03notflown_list.html For a map showing the location of the missing quarter-quadrangles, see: http://www.lmic.state.mn.us/chouse/naip03flown_map.html |
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| Horizontal Positional Accuracy | Not provided by FSA. If more information becomes available, this record will be updated at: http://www.lmic.state.mn.us/chouse/metadata/naip03.html | |||
| Vertical Positional Accuracy | N/A | |||
| Lineage | 1. Creation of National Agricultural Imagery Program (NAIP) Digital Orthorectified Images (DOQ) 2003 (NAIP/FSA): Lineage information for this dataset was not made available by the FSA. The full metadata record for Minnesota's NAIP 2002 imagery can serve as a general guide to the NAIP program procedure although some of the specific processing steps or accuracy assessments may differ from the 2003 program: http://www.lmic.state.mn.us/chouse/metadata/naip02.html GeoTIFF data were delivered to LMIC, tiled by USGS 1:24,000 quarter-quad, on county-based DVD's (750 GB of data). 2. Reorganization of data (LMIC) and reprojection of Zone 14 and 16 data to Zone 15 (MnDNR): LMIC staff read the original county GeoTIFF DVD's and reassembled the data by quarter-quad in 1 x 1-degree (Lat/Long) blocks. These data were written to 4 hard drives and provided to the Minnesota Department of Natural Resources. Using the EPPL7 software DNR MIS staff reprojected the Zone 14 and Zone 16 quarter-quads into the state standard Zone 15. 3. Conversion of FSA 24-bit color imagery to 8-bit B&W imagery (LMIC): Using the EPPL7 software in the linux operating system, the data were converted to an 8-bit gray scale by keeping the red band and dropping the green and blue bands. This created a product that is functionally the equivalent of black and white panchromatic photography with a red filter, long considered to be the standard for evaluating detail during air photo interpretation. This conversion also reduced the size of the dataset from 750 GB to 250 GB.The data were also reformatted from quarter-quad tiles to full quads. 4. Creation of reduced resolution files (LMIC): For speed of display in application, reduced resolution versions were created to be displayed at various scales. New data sets were created by resampling the 1-meter data sets to 4, 16, 64, and 256 meters. Within the Atlas desktop applications, the scale of the map being displayed determines the data set that is displayed: when the user is zoomed in to a small area, the original 1-meter resolution data is displayed. The represention of the GeoTIFF images at a variety of resolutions enables users to view the air photos seamlessly from a statewide perspective at 256-meter pixels down to local images at 1-meter pixels. 5. Data storage and naming conventions: Data files are organized on DVD's in 5 x 5 USGS 1:24,000 quadrangle blocks. Within each 5 x 5 block, the data sets are identified as follows: 1-meter data: tiled by quad; naming is by LMIC quad number (qnbr.tif) 4-meter data: tiled by quad; naming is by LMIC quad number with a suffix 'p' (qnbrp.tif) 16-meter data: tiled by 5 x 5 block; naming is '0' plus the LMIC quad number of the northeastern-most quad in the block (for example, 04506.tif, where the LMIC quad number is 4506). 64-meter data: stored as one complete statewide data set; naming is state64.tif 256-meter data: stored as one complete statewide dataset; naming is state256.tif The 64-meter and 256-meter statewide files are provided on each DVD. |
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| Source Scale Denominator | ||||
| Section 3 | Spatial Data Organization Information | Top of full metadata | Top of page | |
| Native Data Set Environment | GeoTIFF | |||
| Geographic Reference for Tabular Data | ||||
| Spatial Object Type | Raster | |||
| Vendor Specific Object Types | ||||
| Tiling Scheme | Data are organized by 5x5 USGS 1:24,000 map quadrangle blocks; tiling varies by resolution of data set, as described in 'Lineage'. | |||
| 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 | ||||
| Cell Width | 1 | |||
| Cell Height | 1 | |||
| UTM Zone Number | 15E | |||
| 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 | 01/2005 | |||
| Contact Person Information | Ken Pekarek EPPL-EPIC-Atlas Coordinator Minnesota Land Management Information Center (LMIC) 658 Cedar Street, Room 300 St. Paul, MN 55155 Phone: 651.201.2499 FAX: 651.296.3698 E-mail: gisinfo.mngeo@state.mn.us |
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| Distributor's Data Set Identifier | naip03_8bit - FSA NAIP 2003 8-bit gray scale | |||
| 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. |
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| Transfer Format Name | GeoTIFF | |||
| Transfer Format Version Number | ||||
| Transfer Size | The entire statewide data set is stored on a series of about 80 DVD's. It takes more than one DVD to fully store most counties. | |||
| Ordering Instructions | For information on purchasing 8-bit gray scale GeoTIFFs on DVD, contact distributor. Information about this and related products will be provided from LMIC's 'GIS Desktop Solutions' web page. See http://www.lmic.state.mn.us/EPPL7 | |||
| Online Linkage | none available | |||
| Section 7 | Metadata Reference Information | Top of full metadata | Top of page | |
| Metadata Date | 05/26/2009 | |||
| Contact Person Information | Susanne Maeder,
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: gisinfo.mngeo@state.mn.us |
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| 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
