USGS High Resolution Orthoimagery for Arm, Mississippi: 15RYQ845875_201302_0x1500m_4B_1
Dataset Identification:
Resource Abstract:
"This raster dataset consists of 8-bit, 4-band (R, G, B, NIR) color orthoimagery. A digital orthoimage is a raster image processed
from vertical aerial images in which displacement in the image due to sensor orientation and terrain relief have been removed.
Orthoimagery combines the image characteristics of an image with the geometric qualities of a map. Unlike planimetric maps
which depict natural and manmade features by means of lines, point symbols, texts and polygons, orthoimagery illustrate the
actual images of features and are thus more easily interpreted than regular maps. The normal orientation of data in an orthoimage
is by lines (rows) and samples (columns). Each line contains a series of pixels ordered from west to east with the order of
the lines from north to south. Each image tile is stored in industry standard .TIFF (tagged interchange file format) with
an associated true world header file. Aerial imagery was acquired on February 16th and 19th, 2013 from flying heights of approximately
7,500 feet above mean terrain. Each orthoimage tile is 5,000 feet X 5,000 feet in dimension, edge-tied with the adjacent tiles
(no gap and no overlap). This dataset is published in NAD_1983_NSRS2007_StatePlane_Mississippi_West_FIPS_2302_Feet with units
in feet." An orthoimage is remotely sensed image data in which displacement of features in the image caused by terrain relief
and sensor orientation have been mathematically removed. Orthoimagery combines the image characteristics of a photograph with
the geometric qualities of a map. There is no image overlap between adjacent files. Data received at Earth Resources Observation
and Science Center (EROS) were reprojected from: Projection: NAD_1983_StatePlane_Mississippi_West_FIPS_2302_Feet Resolution:
6 inch Type: 4 Band to: Standard Product Projection: NAD_1983_UTM_Zone_15N Standard Product Resolution: 0.1500 m Rows: 10000
Columns: 10000 and resampled to align to the U.S. National Grid (USNG) using The National Map. The naming convention is based
on the U.S. National Grid (USNG), taking the coordinates of the SW corner of the orthoimage. The metadata were imported and
updated for display through The National Map at http://nationalmap.gov/viewer.html Chip-level metadata are provided in HTML
and XML format. Data were compressed utilizing IAS software. The compression was JPEG2000 Lossy Compressed. The file format
created was .jp2.
Citation
Title USGS High Resolution Orthoimagery for Arm, Mississippi: 15RYQ845875_201302_0x1500m_4B_1
publication Date
2014-01-01
presentationForm
imageDigital
Series
Name High Resolution Orthoimagery
Issue 0.1
other Citation Details
The data obtained through The National Map is considered to be the "best available" data from USGS. Information in quotation
marks, initial processing steps, accuracy reports, and source information is taken directly from the original metadata.
National Standards for Spatial Digital Accuracy (NSSDA)
thesaurus name >
Title American Society of Photogrammetry and Remote Sensing
Theme keywords (theme):
Downloadable Data
thesaurus name >
Title The National Map Type Thesaurus
Theme keywords (theme):
Orthoimagery
thesaurus name >
Title The National Map Theme Thesaurus
Theme keywords (theme):
High Resolution Orthoimagery
thesaurus name >
Title The National Map Collection Thesaurus
Theme keywords (theme):
1500 x 1500 meter
thesaurus name >
Title The National Map Product Extent Thesaurus
Theme keywords (theme):
JPEG2000
thesaurus name >
Title The National Map Product Format Thesaurus
Location keywords:
United States
U.S.
US
thesaurus name >
Title U.S. Department of Commerce, 1995, Countries, dependencies, areas of special sovereignty, and their principal administrative
divisions, Federal Information Processing Standard 10-4,): Washington, D.C., National Institute of Standards and Technology
other Citation Details
Cinergi keyword enhanced at Mon Nov 14 16:18:54 UTC 2016
purpose:
"An orthoimage is useful as a layer of any geographic information system (GIS). It can function as a cartographic base for
displaying, generating, and modifying associated digital planimetric data. Other applications include environmental impact
assessments, disaster management, emergency evacuation planning, flood analysis, soil erosion assessment, facility management,
ground-water and watershed analysis, right of way and road alignment, transportation network inventory and analysis, preliminary
design studies, vegetation classification detection of physical features or attributes not possible at ground level, and a
myriad of additional applications." A digital orthoimage is a geometrically accurate photographic record of landscape conditions
at the time of the corresponding aerial photography. As such, High Resolution Orthoimagery is useful for a variety of applications,
such as environmental monitoring, facility engineering/maintenance, city/county planning, property line review, etc. The digital
orthoimage can be used alone or as a raster basemap for corresponding vector line mapping. The detailed focus of High Resolution
Orthoimagery provides emergency responders critical information in determining the best evacuation routes, alternative routes
and safe access to aid. High Resolution Orthoimagery assists law enforcement personnel in determining the best locations to
place surveillance cameras in high-traffic urban areas and popular attractions. The data assists Federal, State and local
emergency responders in planning for homeland security efforts. This data also supports The National Map.
Browse image (thumbnail):
thumbnail file name:
file type: JPEG
thumbnail file description:
Tiled High Resolution Orthoimagery Browse Image
Resource language:
eng; USA
Resource progress code:
completed
Resource Maintenance Information
maintenance or update frequency:
asNeeded
Constraints on resource usage:
Constraints
Use limitation statement:
Although these data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is
made by the USGS regarding the use of the data on any other system, nor does the act of distribution constitute any such warranty.
Data may have been compiled from various outside sources. Spatial information may not meet National Map Accuracy Standards.
This information may be updated without notification. The USGS shall not be liable for any activity involving these data,
installation, fitness of the data for a particular purpose, its use, or analyses results.
Constraints on resource usage:
Legal Constraints
use constraint:
otherRestrictions
Other constraints
Use Constraints: "Data is uncleaned and may be used with permission." There is no guarantee of warranty concerning the accuracy
of the data. Users should be aware that temporal changes may have occurred since this data set was collected and that some
parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications
without a full awareness of its limitations. Acknowledgement of the originating agencies would be appreciated in products
derived from these data. Any user who modifies the data is obligated to describe the types of modifications they perform.
User specifically agrees not to misrepresent the data, nor to imply that changes made were approved or endorsed by the U.S.
Geological Survey. Please refer to http://www.usgs.gov/privacy.html for the USGS disclaimer.
Constraints on resource usage:
Legal Constraints
Access Constraints
otherRestrictions
Other constraints
Access Constraints: "May be distrinuted with the permission of Development Services- Mapping Section" Any downloading and
use of these data signifies a user's agreement to comprehension and compliance of the USGS Standard Disclaimer. Insure all
portions of metadata are read and clearly understood before using these data in order to protect both user and USGS interests.
Constraints on resource usage:
Security Constraints
Classification
unclassified
Classification
System None
Handling
Description N/A
Spatial representation type code:
grid
Processing environment:
Native Dataset Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850 Technical
Prerequisites: ESRI ArcGIS Suite and/or Arc/Info or other compatible software, and supporting operating systems.
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude
-90.0051656733151
eastBoundLongitude
-89.9889608002832
northBoundLatitude
31.500861968387
southBoundLatitude
31.4869764341366
Temporal Extent
2013-02-01
Additional information on resource:
The data obtained through The National Map is considered to be the "best available" data from USGS. Information in quotation
marks, initial processing steps, accuracy reports, and source information is taken directly from the original metadata.; {"gdaId"
: 6723837}
Credits:
U.S. Geological Survey and Lawrence County, MS
point of contact
-
pointOfContact
organisation Name
U.S. Geological Survey
position Name Customer Services Representative
Contact information
Telephone
Voice 1-888-ASK-USGS (1-888-275-8747)
Voice Unknown
Fax Unknown
Address
USGS National Geospatial Program Office12201 Sunrise Valley Drive, Reston, VA, 20192
Country USA
name Of Measure Horizontal Positional Accuracy Report
evaluation Method Description
"Horizontal accuracy is based on ground control and digital elevation model data provided by Sanborn Map Company that was
used in the production of the digital orthoimagery." The relative accuracy is assembled by comparing rectified images generated
from adjacent strips of imagery. The absolute accuracy is assessed by measuring the ground control points in the rectified
image against the actual surveyed co-ordinate position. The testing is for overall accuracy. This data has been produced to
be fully compliant with the National Map Accuracy Standards (NMAS) for mapping at this scale.
AbsoluteExternalPositionalAccuracy
name Of Measure Horizontal Positional Accuracy
measure Description
The digital orthoimagery accuracy requirement meets the Lawrence County Requirement of ASPRS Class 1 of clearly identifiable
features within the photography. The orthoimagery has been compared to the airborne GPS and surveyed locations to confirm
the requirement has been met.
Quantitative Result
result value 1
value Units
AbsoluteExternalPositionalAccuracy
name Of Measure Vertical Positional Accuracy Report
evaluation Method Description
"For the orthophoto product, there is no vertical accuracy."
AbsoluteExternalPositionalAccuracy
name Of Measure Vertical Positional Accuracy
measure Description
For the orthophoto product, there is no vertical accuracy.
Quantitative Result
result value 1
value Units
Completeness Commission
evaluation Method Description
"Compliance with the accuracy standard was ensured by the collection of airborne GPS data and by referencing the ground control
points."
Completeness Omission
evaluation Method Description
"Compliance with the accuracy standard was ensured by the collection of airborne GPS data and by referencing the ground control
points."
ConceptualConsistency
measure Description
"The digital imagery for each acquisition sortie is differentially rectified to produce orthophotography at a resolution of
6in. Once the imagery has passed quality control review, final radiometric adjustments are performed to create a uniform overall
appearance." Logical consistency is implicit in the raster image data structure. Source imagery is cloud free.
notes: This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version
FGDC-STD-001-1998) using the 2012-06-20T17:21:00 version of the FGDC RSE to ISO 19115-2 transform.
Metadata Constraints
Legal Constraints
Access Constraints
otherRestrictions
Other constraints
Metadata Access Constraints: None
Metadata Constraints
Legal Constraints
Access Constraints
otherRestrictions
Other constraints
Metadata Use Constraints: None
Metadata Constraints
Security Constraints
Classification
unclassified
Classification
System None
Metadata contact
-
pointOfContact
organisation Name
U.S. Geological Survey
position Name Customer Services Representative
Contact information
Telephone
Voice 1-888-ASK-USGS (1-888-275-8747)
Voice Unknown
Fax Unknown
Address
USGS National Geospatial Program Office12201 Sunrise Valley Drive, Reston, VA, 20192
Country USA