Identification
Information
Data Quality Information
Spatial Data Organization Information
Spatial Reference Information
Entity and Attribute Information
Distribution Information
Metadata Reference Information
Citation:
Citation_Information:
Originator: George E. McGill
Originator: Steven W. Squyres
Originator: Stephen J. Uzman
Publication_Date: 1997
Title: GEOLOGIC MAP OF THE PERRINE (Jg-2) AND NUN SULCI (Jg-5)
QUADRANGLES OF GANYMEDE
Edition:
Geospatial_Data_Presentation_Form: Map
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Miscellaneous Investigations Series I-2459
Published by the US Geological Survey, 1997
Online_Linkage:
Larger_Work_Citation:
Citation_Information:
Originator:
Publication_Date:
Title:
Publication_Information:
Publication_Place:
Publisher:
Online_Linkage:
Description:
Abstract:
Ganymede is the third of the four Galilean satellites of
Jupiter. It is also the largest (radius of 2,631 km).
Models for the interior structure that are constrained by
distance from the Sun and a mean specific gravity of 1.93
indicate that about half of Ganymede’sc mass consists of
water ices (Cassen and others, 1982). Spectral and
photometric properties suggest that perhaps as much as 90
percent of Ganymede’s surface is water ice (Pilcher and
others, 1972); the remainder is inferred to be silicates
(Pollack and others, 1978; Sill and Clark, 1982; Clark and
others, 1986). Although the surface of Ganymede exhibits
many complex details, it can, to first order, be divided
into two general types of terrains on the basis of average
albedo (Smith and others, 1979a,b; Squyres and Veverka,
1981; Helfenstein and others, 1984). The albedo difference
is believed related to the proportion of silicates mixed
with the ice. Light terrain is generally riven by abundant
long, narrow grooves. Dark terrain is generally more
heavily cratered than light terrain and much less commonly
cut by grooves.
Purpose:
Supplemental_Information:
The map area is in the sub-Jupiter hemisphere of Ganymede.
All images used for mapping were obtained by Voyager 1. The
terminator was located at about long 305° when the images
were obtained, and all coverage in Jg-2 west of about long
60° was obtained with emission angles too large to produce
images usable for mapping. Resolution of the primary
mapping images ranges from 2.4 to 5.2 km/line pair; images
covering Jg-5 are generally superior to those covering Jg-2
(see resolution diagram). The mapped part of Jg-2 is about
equally divided between light and dark material, whereas
the mapped part of Jg-5 comprises approximately 25 percent
dark material and 75 percent light material. An
intermediate-albedo transitional unit occurs locally; this
unit grouped with light materials.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: Unknown
Ending_Date: 1997
Currentness_Reference:
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -2480377.7500
East_Bounding_Coordinate: 2262223.7500
North_Bounding_Coordinate: 3655639.7500
South_Bounding_Coordinate: 1105858.2500
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Jovian_Sattelites
Theme_Keyword: GANYMEDE
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: GANYMEDE
Place_Keyword: Galileo_Regio
Place_Keyword: PERRINE_Quadrangle
Place_Keyword: NUN_SULCI_Quadrangle
Access_Constraints:
Use_Constraints:
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: United States Geological Survey
Contact_Person:
Contact_Position: Map Distribution
Contact_Address:
Address_Type: mailing and physical address
Address: Box 25286, Federal Center
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone:
Contact_Facsimile_Telephone:
Contact_Electronic_Mail_Address:
Hours_of_Service:
Native_Data_Set_Environment:
ArcView version 3.1 shapefile format
c:\alisa\geocd\shpfiles\ganymede\g2459\g2459_g.shp
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Attribute_Accuracy:
Attribute_Accuracy_Report:
All attributes created during the creation process were
verified by displaying the lines in both the database and
the spatial coverage, but no formal tests were performed.
Logical_Consistency_Report:
These data are believed to be logically consistent, though
no tests were performed. Line geometry is topologically clean.
Completeness_Report:
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: George E. McGill
Originator: Steven W. Squyres
Originator: Stephen J. Uzman
Publication_Date: 1997
Title: GEOLOGIC MAP OF THE PERRINE (Jg-2) AND NUN SULCI (Jg-5)
QUADRANGLES OF GANYMEDE
Edition:
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place:
Publisher: U.S. Geological Survey
Other_Citation_Details:
Miscellaneous Investigations Series I-2459
Published by the US Geolgoical Survey, 1997
Online_Linkage:
Larger_Work_Citation:
Citation_Information:
Originator:
Publication_Date:
Title:
Publication_Information:
Publication_Place:
Publisher:
Online_Linkage:
Source_Scale_Denominator: 1:5,000,000
Type_of_Source_Media:
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date:
Ending_Date:
Source_Currentness_Reference:
Source_Citation_Abbreviation:
Source_Contribution:
Source_Information:
Source_Citation:
Citation_Information:
Originator: George E. McGill
Originator: Steven W. Squyres
Originator: Stephen J. Uzman
Publication_Date: 1997
Title: GEOLOGIC MAP OF THE PERRINE (Jg-2) AND NUN SULCI (Jg-5)
QUADRANGLES OF GANYMEDE
Edition:
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place:
Publisher: U.S. Geological Survey
Other_Citation_Details:
Miscellaneous Investigations Series I-2459
Published by the US Geological Survey, 1997
Online_Linkage:
Larger_Work_Citation:
Citation_Information:
Originator:
Publication_Date:
Title:
Publication_Information:
Publication_Place:
Publisher:
Online_Linkage:
Source_Scale_Denominator: 1:5,000,000
Type_of_Source_Media:
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date:
Ending_Date:
Source_Currentness_Reference:
Source_Citation_Abbreviation:
Source_Contribution:
Process_Step:
Process_Description:
Source_Used_Citation_Abbreviation:
Process_Date:
Source_Produced_Citation_Abbreviation:
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Organization: United States Geological Survey
Contact_Person: Trent Hare
Contact_Position: Computer Specialist
Contact_Address:
Address_Type: mailing and physical address
Address: 2255 N Gemini Dr
City: Flagstaff
State_or_Province: AZ
Postal_Code: 86001
Country: USA
Contact_Voice_Telephone: 520-556-7126
Contact_Facsimile_Telephone:
Contact_Electronic_Mail_Address: thare@usgs.gov
Hours_of_Service:
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Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 269
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Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: LAMBERT
Lambert:
1st Standard Parallel: 30
2nd Standard Parallel: 58
Central Meridian: 0.00000
Latitude of Projection Origin: 0.00000
False_Northing: 0.00000
False_Easting: 0.00000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 1 meter
Ordinate_Resolution: 1 meter
Planar_Distance_Units: METERS
Geodetic_Model:
Horizontal_Datum_Name: None
Ellipsoid_Name: Ganymede
Semi-major_Axis: 2634500.0
Denominator_of_Flattening_Ratio: 1.0
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Overview_Description:
Entity_and_Attribute_Overview:
Entity_and_Attribute_Detail_Citation:
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Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: United States Geological Survey
Contact_Person: Trent Hare
Contact_Position: Computer Specialist
Contact_Address:
Address_Type: mailing and physical address
Address: 2255 N Gemini Dr
City: Flagstaff
State_or_Province: AZ
Postal_Code: 86001
Country: USA
Contact_Voice_Telephone: 520-556-7126
Contact_Facsimile_Telephone:
Contact_Electronic_Mail_Address: thare@usgs.gov
Hours_of_Service:
Resource_Description:
Distribution_Liability:
Information has been obtained from sources believed to be
reliable, but its accuracy and completeness and the
opinions based thereon, are not guaranteed. As every effort
is made to provide accurate information in this database,
USGS would appreciate it if users could call to our
attention any errors that may occur by communicating with
the contact person.
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Metadata_Date: 08/18/00
Metadata_Review_Date:
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: United States Geological Survey
Contact_Person: Alisa Wenker
Contact_Position: Science Technician
Contact_Address:
Address_Type: Mailing and physical address
Address: 2255 N Gemini Dr
City: Flagstaff
State_or_Province: AZ
Postal_Code: 86001
Country: USA
Contact_Voice_Telephone: 520-556-7126
Contact_Facsimile_Telephone:
Contact_Electronic_Mail_Address:
Hours_of_Service:
Metadata_Standard_Name: FGDC CSDGM
Metadata_Standard_Version: FGDC-STD-001-1998
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