Digital Raster Graphic: TETON VILLAGE , WY

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: USGS Earth Resources Observation & Science Center (EROS)
Publication_Date: 19981101
Title: Digital Raster Graphic: TETON VILLAGE , WY
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: USGS Digital Raster Graphics
Issue_Identification:
Digital Raster Graphics (DRGs) are scanned color images of USGS topographic maps.
Publication_Information:
Publication_Place: Sioux Falls
Publisher: USGS Earth Resources Observation & Science Center (EROS)
Other_Citation_Details:
Earth Science Information Centers (ESIC) offer nationwide information and sales service for USGS map products and earth science publications. For additional information, contact any USGS Earth Science Information Center (ESIC), or call 1-888-ASK-USGS.
Online_Linkage: <http://earthexplorer.usgs.gov>
Description:
Abstract:
A digital raster graphic (DRG) is a scanned image of a U.S. Geological Survey (USGS) topographic map. The scanned image includes all map collar information. The image inside the map neatline is georeferenced to the surface of the Earth. The DRG can be used to collect, review, and revise other digital data especially digital line graphs (DLG). When the DRG is combined with other digital products, such as digital orthophoto quadrangles (DOQ) or digital elevation models (DEM), the resulting image provides additional visual information for the extraction and revision of base cartographic information. The USGS is producing DRGs of the 1:24,000-, 1:25,000-, 1:63,360- (Alaska), 1:100,000-, and 1:250,000-scale topographic map series.
Purpose:
The DRG is used for validating digital line graphs (DLGs) and for DLG data collection and revision. The DRG can help assess the completeness of digital data from other mapping agencies. It can also be used to produce "hybrid" products. These include combined DRGs and DOQs for revising and collecting digital data, DRGs and DEMs for creating shaded-relief DRGs and combinations of DRG, DOQ, and DLG data. Although a standard DRG is an effective mapping tool, its full potential for digital production is realized in combination with other digital data.
Supplemental_Information:
Digital raster graphic (DRG) data on CD-ROM are being produced by the U.S. Geological Survey (USGS) through an Innovative Partnership agreement with The Land Information Technology Company Ltd. of Aurora, CO. This series includes DRG's of USGS standard series quadrangle maps of the United States, its Trusts, and Territories.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19970318
Ending_Date: 19970318
Currentness_Reference: ground condition
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -110.875
East_Bounding_Coordinate: -110.75
North_Bounding_Coordinate: 43.625
South_Bounding_Coordinate: 43.5
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD Parameter Keywords
Theme_Keyword: aerial photograph
Theme_Keyword: cartography
Theme_Keyword: cities
Theme_Keyword: county boundaries
Theme_Keyword: earth
Theme_Keyword: EDC
Theme_Keyword: EROS
Theme_Keyword: hydrography
Theme_Keyword: lakes
Theme_Keyword: manmade features
Theme_Keyword: mapping
Theme_Keyword: orthophoto
Theme_Keyword: orthophotoquad
Theme_Keyword: photography
Theme_Keyword: railroads
Theme_Keyword: rivers
Theme_Keyword: roads
Theme_Keyword: topography
Theme_Keyword: U.S. Public Land Survey System
Theme_Keyword: USGS
Theme_Keyword: water
Theme_Keyword: EARTH SCIENCE --> LAND SURFACE --> Topography --> Landforms
Theme_Keyword: EARTH SCIENCE --> LAND SURFACE --> Topography --> Relief
Theme_Keyword: U.S. Public Land Survey System
Theme_Keyword: EARTH SCIENCE --> LAND SURFACE --> Topography --> Contours
Place:
Place_Keyword_Thesaurus: GCMD Location Keywords
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: US
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: true ground conditions
Access_Constraints: None
Use_Constraints:
Acknowledgement of the Geological Survey would be appreciated in products derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey Earth Resources Observation and Science (EROS) Center
Contact_Person: Customer Services Representative
Contact_Position: Customer Service
Contact_Address:
Address_Type: mailing and physical address
Address:
U.S. Geological Survey
Earth Resources Observation and Science (EROS) Center
47914 252nd Street
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 1-888-ASK-USGS
Contact_Electronic_Mail_Address: lta@usgs.gov
Hours_of_Service: 0800 - 1600 CT, M-F, -6 h GMT
Contact_Instructions:
Online Ordering: Once you have filled out and submitted the online ordering form found at <http://earthexplorer.usgs.gov>, it is forwarded to Customer Services at the USGS National Center for Earth Resources Observation & Science (EROS) via the Earth Explorer system. EROS uses a secure credit card server that will encrypt your sensitive information and pass it from your browser to the EROS web server. Mail Ordering: First obtain the ordering information from Earth Explorer. Mail this information, along with your payment (check or purchase/money order), to USGS, EROS,
Security_Information:
Security_Classification_System: none
Security_Classification: unclassified
Security_Handling_Description: none

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The DRG is an 8-bit color image that employs a color palette to ensure uniform colors throughout a particular DRG series. All DRG's within a series must have the same RGB value.
Logical_Consistency_Report:
The USGS DRG is produced with the intention of replicating as close as possible the original source map. Users of the DRG will note, however, that a certain amount of "noise" can be discerned when small areas are blown up or viewed under zoomed-in conditions. This noise is in the form of random specks or pixels of color and halos due to any number of factors, such as the quality of the source, the use of screens and patterns on the litho, and the unevenness of ink due to saturation and absorption. Discontinuities or breaks in linear features may also be present and are due to improper calibration or usage of the scanner, the condition of the source, and resampling. Descreening, quantizing, and noise filtering are methods used to reduce noise, which, besides creating a more aesthetically pleasing image, have the added benefit of reducing the size of the image file. Removal of lithographic screen patterns is preferred but not required.
Completeness_Report:
Image completeness is checked by visually inspecting a sampling of DRGs. Each selected DRG is examined for gaps (missing data) in the main body of the map, the map collar, the overedge areas, and any insets.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
A random sampling of DRGs is accuracy tested. The accuracy test is performed by comparing the positions of UTM grid intersections on the source graphic against the corresponding location on the digital image. A visual inspection determines whether those coordinates fall within the pixels that define a grid tick. DRGs duplicate the horzontal accuracy of its source.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 1
Horizontal_Positional_Accuracy_Explanation:
DRGs retain the horizontal accuracy of the source maps. Most USGS printed maps contain the National Map Accuracy Standards (NMAS) note in the collar area. The NMAS states that for maps on publication scales of 1:20,000 or smaller, no more than 10 percent of the points tested shall be in error by more than 1/50 inch measured on the publication scale. Test points must be "well-defined", that is, easily visible or recoverable on the ground. For DRGs this accuracy statement applies only to that area of the DRG that falls within the neatline of the source map (excluding inset areas). Overedge areas falling outside the transformation boundary area (the map neatline) can exhibit anomalies or discrepancies. These anomalies also will appear in the map inset areas and in the map collar. For maps without the NMAS note, the horizontal accuracy is unknown. However, the DRG will retain the accuracy of the source map.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The vertical positional accuracy of a DRG is referenced in the DRG collar
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: unknown
Title: USGS Topographic maps
Geospatial_Data_Presentation_Form: map
Other_Citation_Details:
The source for DRGs are the standard quadrangle format USGS topographic maps as described in the Federal Geographic Data Committee "Manual of Federal Geographic Data Products". They include 1:20,000-, 1:24,000-, 1:25,000-, 1:30,000-, 1:63,360-, 1:100,000- and 1:250,000-scale topographic maps. Included in the 1:24,000- and 1:25,000-scale series are provisional (P) maps and color orthophotomaps.
Source_Scale_Denominator: 24000
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19910701
Ending_Date: 19910701
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: USGS Topo
Source_Contribution:
The standard area of coverage of a DRG is the entire area printed on a USGS standard series topographic map including the map collar, any overedge areas, and insets. These standard series maps include:
7.5-minute map series: Conterminous United States, Hawaii, and limited areas of Alaska at 1:24,0000 and 1:25,000 scale.
7.5- by 15-minute map series: Covers limited areas of the conterminous United States at 1:25,000 scale.
30- by 60-minute map series: Conterminous United States
Process_Step:
Process_Description:
Production of a DRG begins with the scanning of a paper 7.5-minute topographic map (map1) on a high-resolution scanner. Scanning resolutions range from 500-1,000 dpi with an output file of 160-300 Mb in size. Removal of screens (descreening) and color quantization to reduce the number of colors also takes place during the scanning phase.
The raw scan file is then transformed and georeferenced using UTM coordinates of the sixteen 2.5-minute grid ticks, which are obtained using the in-house produced program COORDAT and stored in a ground control file. Those sixteen 2.5-minute ticks are interactively visited and assigned their respective UTM coordinates. The USGS program XSHAPES4 then performs a piecewise linear rubber sheet transformation.
An output resolution of 2.4 meters (8.2 feet) is chosen to resample the file to 250 dpi. The image file is converted to a TIFF 6.0 image and further reduced by converting the file to a run length encoded PackBits compression (type 32773).
The color palette of the compressed DRG is then standardized by replacing the original RGB values assigned during the scanning process with standard RGB value combinations using the in-house produced TIFFREMAP program.
Source_Used_Citation_Abbreviation: map1
Process_Date: 0000
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Rolla-ESIC U.S. Geological Survey
Contact_Position: Customer Services Representative
Contact_Address:
Address_Type: mailing and physical address
Address: 1400 Independence Rd., MS231
City: Rolla
State_or_Province: MO
Postal_Code: 65401-2602
Country: USA
Contact_Voice_Telephone: +001 573-308-3577
Contact_Electronic_Mail_Address: lta@usgs.gov
Contact_Instructions: <http://topomaps.usgs.gov/drg/>

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 6702
Column_Count: 4777

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 12
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -111.000
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 2.438400000000
Ordinate_Resolution: 2.438400000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Each raster entity or pixel contains a digital number referencing a color palette of RGB values. Pixel resolution X is 2.4384 and pixel resolution Y is 2.4384
Entity_and_Attribute_Detail_Citation: Standards for Digital Raster Graphic.

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey Earth Resources Observation and Science (EROS) Center
Contact_Person: Customer Services Representative
Contact_Address:
Address_Type: mailing and physical address
Address:
Customer Services, U.S. Geological Survey
Earth Resources Observation and Science (EROS) Center
47914 252nd Street
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 1-888-ASK-USGS
Contact_Electronic_Mail_Address: lta@usgs.gov
Hours_of_Service: 0800 - 1600 CT, M-F, -6 h GMT
Contact_Instructions: <URL:http://edc.usgs.gov/eros-home.html>
Distribution_Liability:
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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Tagged Image File Format (TIFF)
Format_Version_Number: version 6.0
Format_Specification:
Download WinCATS USGS DRG and DLG-O & DRG viewing software available from USGS.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://earthexplorer.cr.usgs.gov/>
Fees: None.
Ordering_Instructions:
Dataset searching and ordering capabilities are available though EarthExplorer at: <http://earthexplorer.cr.usgs.gov/>
Turnaround:
Delivery Times can be found at: <http://eros.usgs.gov/#/About_Us/Customer_Service/Delivery_Times>
Technical_Prerequisites:
Adequate computer capability is the only technical prerequisite for viewing data in digital form.

Metadata_Reference_Information:
Metadata_Date: 20001028
Metadata_Review_Date: 20111028
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey Earth Resources Observation and Science (EROS) Center
Contact_Position: Archive Management
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: Earth Resources Observation and Science (EROS) Center
Address: 47914 252nd Street
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 1-888-ASK-USGS
Contact_Electronic_Mail_Address: lta@usgs.gov
Hours_of_Service: 0800 - 1600 CT, M-F, -6 h GMT
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998, Version 2
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None

Generated by mp version 2.9.14 on Fri Feb 24 00:02:14 2012