1:250,000-scale Digital Raster Graphic for Idaho (ArcIMS)
Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information
Identification Information
Section Index
Citation:
Citation Information:
Originator: University of Idaho Library -- INSIDE Idaho Project
Publication Date: 20020130
Title: 1:250,000-scale Digital Raster Graphic for Idaho (ArcIMS)
Geospatial Data Presentation Form: raster digital data
Publication Information:
Publication Place: Moscow, Idaho
Publisher: University of Idaho Library
Online Linkage: http://inside3.uidaho.edu/WebMapping/Metadata/Drg250k.htm
Larger Work Citation:
Citation Information:
Originator: University of Idaho Library -- INSIDE Idaho Project
Publication Date: 20000210
Title: Digital Raster Graphics of Idaho (IDTM Projection w/o Collar; 1:250K)
Geospatial Data Presentation Form: raster digital data
Series Information:
Series Name: INSIDE Idaho GIS Database
Issue Identification: None
Publication Information:
Publication Place: Moscow, Idaho
Publisher: University of Idaho Library
Online Linkage: http://inside2.uidaho.edu/data/250k/usgs/drg/idtm/quad/nocollar/metadata/250k_usgs_drg_nocollar.htm
Description:
Abstract: A seemless 1:250,000-scale USGS Digital Raster Graphic for Idaho.
Purpose:
This SDE layer was developed for use in ArcIMS Image Map Services. It provides suitable base map information for many mapping applications. The image is appropriate for use at a regional scale and is intended as a reference. The image is not appropriate for use at scales greater than 1:250,000, nor as a geodetic or engineering base.
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 9/11/1996
Beginning Time: Unknown
Ending Date: 3/3/1997
Ending Time: 00:00:00
Currentness Reference: ground condition
Status:
Progress: Complete
Maintenance and Update Frequency: Unknown
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -118.598412
East Bounding Coordinate: -109.401306
North Bounding Coordinate: 49.069334
South Bounding Coordinate: 40.930582
Keywords:
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: digital raster graphic
Theme Keyword: DRG
Theme Keyword: image
Theme Keyword: quadrangle
Theme Keyword: topographic
Theme Keyword: topographic map
Theme Keyword: usgs
Place:
Place Keyword Thesaurus: None
Place Keyword: Idaho
Access Constraints: None
Use Constraints: Not to be used at scales greater than 1:250000, nor as a geodetic or engineering base.
Point of Contact:
Contact Information:
Contact Person Primary:
Contact Person: Lily Wai
Contact Organization: University of Idaho Library
Contact Position: Head of Government Documents
Contact Address:
Address Type: mailing and physical address
Address: University of Idaho Library
City: Moscow
State or Province: ID
Postal Code: 83844-2350
Country: USA
Contact Voice Telephone: 208-885-6344
Contact Facsimile Telephone: 208-885-6817
Contact Electronic Mail Address: lwai@uidaho.edu
Hours of Service: 9:00 am - 5:00 pm (Pacific Time), Monday - Friday
Data Set Credit: Acknowledgment of the USGS would be appreciated in products derived from these data. University of Idaho Library -- INSIDE Idaho.
Native Data Set Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.1.1.649
Data Quality Information
Section Index
Attribute Accuracy:
Attribute Accuracy Report: A DRG is an 8-bit color image that employs a color pallette.
Logical Consistency Report: All cells contain an RGB value.
Completeness Report:
The DRG is a faithfully reproduced digital image of the original source map. Some differences may be detected between the source graphic used and the DRG due to the RGB values assigned that particular color. The intent is to recreate those colors as near as possible. Data completeness for DRG files reflect content of the source graphic. Features may have been eliminated or generalized on the source graphic due to scale and legibility constraints. For information on collection and inclusion criteria, see U.S. Geological Survey, 1994, Standards for 1:250,000-Scale Digital Line Graphs and Quadrangle Maps: National Mapping Program Technical Instructions and U.S. Geological Survey, 1994, Standards for Digital Line Graphs: National Mapping Program Technical Instructions.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report:
While the datum of the published maps are retained to be consistent with other USGS digital data, the image is cast on the IDTM and may be inconsistent with the credit notes on the USGS UTM image collars.
Vertical Positional Accuracy:
Vertical Positional Accuracy Report: Refer to the individual UTM DRG collars for information about vertical positional accuracy.
Lineage:
Source Information:
Source Citation:
Source Scale Denominator: 250000
Type of Source Media: raster digital data
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 9/11/1996
Beginning Time: Unknown
Ending Date: 3/3/1997
Ending Time: Unknown
Source Currentness Reference: ground condition
Source Citation Abbreviation: 250KDRGUTM
Source Contribution: Original DRG from the USGS in UTM projection
Source Information:
Source Citation:
Citation Information:
Originator: University of Idaho Library -- INSIDE Idaho Project
Publication Date: 20000210
Title: Digital Raster Graphics of Idaho (IDTM Projection w/o Collar; 1:250K)
Geospatial Data Presentation Form: raster digital data
Series Information:
Series Name: INSIDE Idaho GIS Database
Issue Identification: None
Publication Information:
Publication Place: Moscow, Idaho
Publisher: University of Idaho Library
Online Linkage: http://inside2.uidaho.edu/data/250k/usgs/drg/idtm/quad/nocollar/metadata/250k_usgs_drg_nocollar.htm
Source Scale Denominator: 250000
Type of Source Media: raster digital data
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 9/11/1996
Beginning Time: Unknown
Ending Date: 3/3/1997
Ending Time: Unknown
Source Currentness Reference: ground condition
Source Citation Abbreviation: quadname_250k_usgs_drg
Source Contribution: Digital Raster Graphics in IDTM projection with the collars clipped off.
Process Step:
Process Description:
The production procedures, instrumentation, hardware, and software used in the collection of standard DRG products vary depending on systems used at the contract, cooperator or USGS production sites. The majority of DRG data sets are acquired through government contract. The process step describes, in general, the process used in the production of standard DRG data sets.
1. 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 - 1000 dpi with the output file running between 160-300 mb.
2. Removal of screens (descreening) and color quantization to reduce the number of colors also takes place during the scanning phase.
3. 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. USGS program XSHAPES4 then performs a piecewise linear rubber sheet transformation.
4. An output resolution of 2.4 meters (8.2 feet) is chosen in order to resample the file to 250 dpi.
5. The image file is converted to a TIFF and further reduced by converting the file to a run length encoding Packbits compression(type 32773).
6. 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.
7. Prior to archiving the DRG undergoes the following quality assurance procedures:
a. The color index values of each DRG are checked to ensure the RGB combinations are consistent with the standardized color palette.
b. All DRG files are inspected to ensure that they are geometrically consistent with normal map presentation.
c. Selected DRG's are checked to ensure that data elements in the DRG metadata file correspond to the map collar information and to the information in the associated image file.
d. Selected DRG's are checked for georeferencing accuracy by comparing the book value of latitude and longitude tick marks with corresponding tick intersections in the DRG image.
e. Transformations are checked on selected DRG's by comparing the positions of well defined points, such as UTM grid intersections in the graphic product, with the corresponding image points in the DRG. USGS DRG production specifications are available on request from the National Mapping Division and Mid-Continent Mapping Center by contacting:
Rolla-ESIC
U.S. Geological Survey
1400 Independence Rd., MS231
Rolla, MO 65401-2602
Phone (573)308-3500
Facsimile (573)308-3615
E-mail to mcmcesic@usgs.gov
World Wide Web: <http://mcmcweb.er.usgs.gov/drg/>
Process Date: Unknown
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Unknown
Contact Person: Unknown
Contact Address:
Address Type: mailing and physical address
Address: unknown
City: unknown
State or Province: unknown
Postal Code: unknown
Country: unknown
Contact Voice Telephone: unknown
Process Step:
Process Description:
The 1:250,000 scale DRGs in UTM were transformed by: (1) Reprojecting them into Idaho Transverse Mercator projection (IDTM), (2a) saving them with the collar information on the images and (2b) saving them with the collar information cropped off the images.
Source Used Citation Abbreviation: 250KDRGUTM
Process Date: 20000101
Process Contact:
Contact Information:
Contact Person Primary:
Contact Person: Lily Wai
Contact Organization: University of Idaho Library
Contact Position: Head of Government Documents
Contact Address:
Address Type: mailing and physical address
Address: University of Idaho Library
City: Moscow
State or Province: ID
Postal Code: 83844-2350
Country: USA
Contact Voice Telephone: 208-885-6344
Contact Facsimile Telephone: 208-885-6817
Contact Electronic Mail Address: lwai@uidaho.edu
Hours of Service: 9:00 am - 5:00 pm (Pacific Time), Monday - Friday
Process Step:
Process Description:
Copied the 24 1:250,000-scale DRG's off the INSIDE Idaho server.
Extracted the compressed data.
Converted the TIFF files to Arc Grids using IMAGEGRID command.
Converted the value #13 to NODATA using SETNULL.
Merged all 24 Grids together using MERGE command in Grid Module.
Converted NODATA cells to digital number 0 (black) using CON. Some cells had NODATA value where they were merged together.
Clipped the Grid with a 250k outline boundary coverage using GRIDCLIP command.
Set all NODATA values to a unique digital number (13) using CON.
Converted the grid to a compressed TIFF image using GRIDIMAGE.
Exported the image to an SDE database using the Export > Raster to Geodatabase option in ArcCatalog 8.1.
Tile size: H:300, W:200
Compression: LZ77
Resampling: Nearest Neighbor
Source Used Citation Abbreviation: quadname_250k_usgs_drg
Process Date: 20011128
Process Contact:
Contact Information:
Contact Person Primary:
Contact Person: Lily Wai
Contact Organization: University of Idaho Library
Contact Position: Head of Government Documents
Contact Address:
Address Type: mailing and physical address
Address: University of Idaho Library
City: Moscow
State or Province: ID
Postal Code: 83844-2350
Country: USA
Contact Voice Telephone: 208-885-6344
Contact Facsimile Telephone: 208-885-6817
Contact Electronic Mail Address: lwai@uidaho.edu
Hours of Service: 9:00 am - 5:00 pm (Pacific Time), Monday - Friday
Spatial Data Organization Information
Section Index
Direct Spatial Reference Method: Raster
Raster Object Information:
Raster Object Type: Pixel
Row Count: 35292
Column Count: 26493
Vertical Count: 1
Spatial Reference Information
Section Index
Horizontal Coordinate System Definition:
Planar:
Map Projection:
Map Projection Name: Transverse Mercator
Transverse Mercator:
Scale Factor at Central Meridian: 0.9996
Longitude of Central Meridian: -114
Latitude of Projection Origin: 42
False Easting: 500000
False Northing: 100000
Planar Coordinate Information:
Planar Coordinate Encoding Method: Row and Column
Coordinate Representation:
Abscissa Resolution: 25.4
Ordinate Resolution: 25.4
Planar Distance Units: meters
Geodetic Model:
Horizontal Datum Name: North American Datum 1927
Ellipsoid Name: Clarke 1866
Semi-major Axis: 6378206
Denominator of Flattening Ratio: 294.9786982
Entity and Attribute Information
Section Index
Detailed Description:
Entity Type:
Entity Type Label: Band_1
Entity Type Definition: 8-bit single band raster
Entity Type Definition Source: University of Idaho Library -- INSIDE Idaho
Attribute:
Attribute Label: Blue
Attribute Definition: Blue contribution to the RGB
Attribute Definition Source: University of Idaho Library -- INSIDE Idaho
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 1
Attribute:
Attribute Label: Green
Attribute Definition: Green contribution to the RGB
Attribute Definition Source: University of Idaho Library -- INSIDE Idaho
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 1
Attribute:
Attribute Label: ObjectID
Attribute Definition: Unique Identifier for each record created by the software
Attribute Definition Source: University of Idaho Library -- INSIDE Idaho
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 255
Attribute Measurement Resolution: 1
Attribute:
Attribute Label: Red
Attribute Definition: Red contribution to the RGB
Attribute Definition Source: University of Idaho Library -- INSIDE Idaho
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 1
Attribute:
Attribute Label: Value
Attribute Definition: RGB value
Attribute Definition Source: University of Idaho Library -- INSIDE Idaho
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 255
Attribute Measurement Resolution: 1
Overview Description:
Entity and Attribute Overview:
Each raster entity or pixel contains a color index from 0 through 13 referencing a color palette of RGB values from 0 through 255 in which the colors used in the DRG are defined.
USGS DRG Color Palette
Digital Number Color Red Green Blue
0 Black 0 0 0
1 White 255 255 255
2 Blue 0 151 164
3 Red 203 0 23
4 Brown 131 66 37
5 Green 201 234 157
6 Purple 137 51 128
7 Yellow 255 234 0
8 Light Blue 167 226 226
9 Light Red 255 184 184
10 Light Purple 218 179 214
11 Light Grey 209 209 209
12 Light Brown 207 164 142
13 Dark Grey 99 99 99
Entity and Attribute Detail Citation: none
Distribution Information
Section Index
Distributor:
Contact Information:
Contact Person Primary:
Contact Person: Lily Wai
Contact Organization: University of Idaho Library
Contact Position: Head of Government Documents
Contact Address:
Address Type: mailing and physical address
Address: University of Idaho Library
City: Moscow
State or Province: ID
Postal Code: 83844-2350
Country: USA
Contact Voice Telephone: 208-885-6344
Contact Facsimile Telephone: 208-885-6817
Contact Electronic Mail Address: lwai@uidaho.edu
Hours of Service: 9:00 am - 5:00 pm (Pacific Time), Monday - Friday
Resource Description: 250K Digital Raster Graphics in IDTM projection without Collars
Distribution Liability:
The user must assume responsibility to determine the usability of this data for their purposes.
The University of Idaho Library provides these geographic data "as is". UIL makes no guarantee or warranty concerning the accuracy of information contained in the geograpic data. UIL further make no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have beeen processed successfully on computers of UIL, no warranty, expressed or implied, is made by UIL regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.
In no event shall the UIL have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by UIL.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ArcIMS Image Map Server
Format Version Number: 3.1
Format Specification: ArcIMS version 3.1
Format Information Content: Data are available from ArcIMS 3.1 Image Map Services. The data can be viewed in a web browser at a 'Network Resource Name' URL below.
File Decompression Technique: File does not need to be decompressed.
Digital Transfer Option:
Online Option:
Computer Contact Information:
Fees: None
Standard Order Process:
Non-digital Form: N/A
Fees: None
Metadata Reference Information
Section Index
Metadata Date: 1/30/2002
Metadata Review Date:
Metadata Future Review Date:
Metadata Contact:
Contact Information:
Contact Person Primary:
Contact Person: Lily Wai
Contact Organization: University of Idaho Library
Contact Position: Head of Government Documents
Contact Address:
Address Type: mailing and physical address
Address: University of Idaho Library
City: Moscow
State or Province: ID
Postal Code: 83844-2350
Country: USA
Contact Voice Telephone: 208-885-6344
Contact Facsimile Telephone: 208-885-6817
Contact Electronic Mail Address: lwai@uidaho.edu
Hours of Service: 9:00 am - 5:00 pm (Pacific Time), Monday - Friday
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
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
SMMS Metadata report generated 1/31/2002