Metadata for Big Sky County Water and Sewer District No. 363 Metadata for Big Sky County Water and Sewer District No. 363
Identification Information:
Citation:
Originator: Quantum Spatial, Inc., Quantum Spatial, Inc.
Publication date: 12/15/2020
Title: Big Sky County Water and Sewer District No. 363
Publisher: Big Sky Water and Sewer District No. 363

Abstract:
Product: This orthoimagery data set includes 0.75 meters digital orthoimages in 8-bit 3-band (RGB) GeoTIFF tiles and 8-bit 3-band (RGB) MrSID mosaics (20:1 compression ratio). Geographic Extent: 2 counties in Montana, covering approximately 23 total square miles. Dataset Description: The Big Sky Montana project called for the planning, acquisition, processing, and derivative products of imagery data to be collected at a ground sample distance (GSD) of 0.75 meters. Project specifications are based on the American Society of Photogrammetry and Remote Sensing (ASPRS) standards. The data were developed based on a horizontal projection/datum of NAD 1983 HARN StatePlane Montana FIPS 2500, Meter. Imagery data were delivered as 0.75 meters 8-bit 3-band (RGB) GeoTIFF tiles and 8-bit 3-band (RGB) MrSID mosaics (20:1 compression ratio). Tiled deliverables contained 74 individual 900 m x 900 m tiles. Ground Conditions: Imagery was collected in fall 2020, while no snow was on the ground and rivers were at or below normal levels. In order to post process the imagery data to meet task order specifications and meet ASPRS horizontal accuracy guidelines, Quantum Spatial, Inc. utilized a total of 16 ground control points to assess the horizontal accuracy of the data.
Purpose:
These data depict geographic features on the surface of the earth. The dataset was created to current imagery data for Montana. Collected under a MLIA Grant FY2021.

Time period of content:
Beginning date: 09/01/2020
Ending date: 09/04/2020
Currentness reference: Ground condition
Status:
Progress: Complete
Maintenance and update frequency: None planned
Access constraints: None
Use constraints:
None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the organization providing these data to the public would be appreciated for products derived from these data.
Point of contact:
Quantum Spatial, Inc.
Quantum Spatial, Inc.
Lexington, KY 40503


Telephone: 859-277-8700
Fax: 859-277-8901


Point of contact:
Vincent Palafox
Big Sky Water and Sewer District No. 363
Big Sky, MT 59716


Telephone: 406-283-1394
E-Mail: vince@wsd363.com


Data set credit: Quantum Spatial, Inc.
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Entity and Attribute Information:
Entity and attribute overview:
Three band orthoimagery is organized in three color bands or channels which represent the red, green, and blue (RGB) portions of the spectrum. Four band orthoimagery is organized in four color bands or channels which represent the red, green, blue (RGB), and near infrared (IR) portions of the spectrum. Each image pixel is assigned a triplet or quadruplet of numeric values, one for each color band. Numeric values range from 0 to 255.
Entity and attribute detail citation:
U.S. Department of the Interior, U.S. Geological Survey, 1996, Standards for Digital Orthophotos: Reston, VA.
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Distribution Information:
Distributor:
Vincent Palafox
Big Sky Water and Sewer District No. 363
Big Sky, MT 59716


Telephone: 406-283-1394
E-Mail: vince@wsd363.com


Resource description: Downloadable Data


Distribution liability:
None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the organization providing these data to the public would be appreciated for products derived from these data.
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Metadata Reference Information:
Metadata date: 12/15/2020
Metadata contact:
Quantum Spatial, Inc.
Quantum Spatial, Inc.
Lexington, KY 40503


Telephone: 859-277-8700
Fax: 859-277-8901


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