Metadata for Index to Photography Acquisition Dates, Montana 2005 NAIP Orthophotos Metadata for Index to Photography Acquisition Dates, Montana 2005 NAIP Orthophotos

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Identification Information:

Citation:

Originator: USDA-Farm Services Agency Aerial Photography Field Office

Publication date: 2006

Title:

Index to Photography Acquisition Dates, Montana 2005 NAIP Orthophotos

Publication place: Helena, Montana
Publisher: Montana State Library

Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2005_NAIP/naip_2005_color_dates.zip

Larger Work Citation:

Title: Montana 2005 Color NAIP Orthophotos
Online linkage: http://mslapps.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={1d1e52f1-0cfa-47bb-9674-570cf5cfaa19}

Browse graphic file name: https://ftpgeoinfo.msl.mt.gov/Documents/Maps/Individual/20050101_138_2005_Color_Dates.gif

Abstract:

This data set contains polygons delineating the areas covered during each day of acquisition of images in Montana for the 2005 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 2005 NAIP. The boundary lines are based on 3.75-minute Digital Orthophoto Quarter-Quadrangle (DOQQ) boundaries. The 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. 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. The photos themselves are available at http://geoinfo.msl.mt.gov/data/Aerial_Photos/NAIP_2005.

Time period of content:

Beginning date: 07/01/2005
Ending date: 09/20/2005
Currentness reference: ground condition

Access constraints: None

Use constraints:

The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.

Point of contact:

USDA-Farm Services Agency Aerial Photography Field Office
2222 West 2300 South
Salt Lake City, Utah 84119-2020
Telephone: 801-975-3500
E-Mail: sales@apfo.usda.gov

Data Quality Information:

Attribute accuracy report:

All data have been reviewed for correct application of attributes and are accurate to current conditions.

Lineage:

Source information:

Originator: USDA-Farm Services Agency Aerial Photography Field Office
Publication date: 02/01/2006
Title: Index of source acquisition dates.
Source scale denominator: 7920
Source contribution: Collection date of source image data.
Calendar date: 2005

Process step:

This ESRI shape file was created using ArcMap 9.0. The attribute data was collected during the contracting and inspection process and stored in Oracle database tables. This data was extracted from the Oracle database and joined to a national data set of quarter quadrangle polygons using the south east corner coordinate as the primary join key. An automated process was used to select the quarter quadrangles that cover each county from the national data set and then exported with the desired attributes to create this shape file data set.


Process date: 02/01/2006

Process step:

The date index shapefiles provided by the Aerial Photography Field Office for each Montana county were combined into a single shapefile and the ESRI "Dissolve" command was used to remove boundary lines between quarter-quadrangles that had the same acquisition date.

Spatial Data Organization Information:

Point and vector object information:

SDTS object type: G-polygon

SDTS object count: 150

Spatial Reference Information:

Horizontal coordinate system definition:

Grid coordinate system name: State Plane Coordinate System

SPCS zone identifier: 2500

Lambert conformal conic:

Standard parallel: 45.000000
Standard parallel: 49.000000
Longitude of central meridian: -109.500000
Latitude of projection origin: 44.250000
False easting: 600000.000000
False northing: 0.000000

Planar distance units: meters

Geodetic model:

Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137.000000
Denominator of flattening ratio: 298.257222

Entity and Attribute Information:

Entity type label: NAIP_2005_Color_Dates

Attribute label: FID

Attribute definition: Internal feature number

Attribute label: Shape

Attribute definition: Feature geometry

Attribute label: IDAT

Attribute definition:: Integer date value giving the date aerial photography was flown. This data is in the format YYYYMMDD, so that, for example, 20050815 means August 15, 2005.

Distribution Information:

Distributor:

Montana State Library
PO Box 201800
Helena, Montana 59620-1800
Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov

Resource description: Downloadable Data

Distribution liability:

Standard order process:

Digital form:

Metadata Reference Information:

Metadata date: 03/08/2016

Metadata contact:

Montana State Library
PO Box 201800
Helena, Montana 59620-1800
Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov