Identification_Information: Citation: Citation_Information: Originator: Kenneth L. Tanaka Originator: Corey M. Fortezzo Title: Geologic Map of the North Polar Region, Mars Publication_Date: 20120815 Edition: 1 Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Reston, VA Publisher: U. S. Geological Survey Online_Linkage: http://pubs.usgs.gov/sim/3177/ Series_Information: Series_Name: U.S. Geological Survey Scientific Investigations Map Issue_Identification: SIM 3177 Description: Abstract: Geologic map of the North Polar Region, Mars. Includes the the polar plateau, Planum Boreum, and the circum polar plains, Vastitas Borealis and Scandia Cavi. The GIS files include geology, contacts, linear features, residual ice, latitude/longitude grid, and geologic and geographic nomenclature. Purpose: To develop a geologic map for the North Polar region of Mars Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -180.000000 East_Bounding_Coordinate: 180.000000 North_Bounding_Coordinate: 90.000000 South_Bounding_Coordinate: 70.000000 Keywords: Theme: Theme_Keyword_Thesaurus: NASA Theme_Keyword: Mars polar processes Theme_Keyword: Mars northern plains Theme_Keyword: Mars polar plateau Theme_Keyword: Mars geology Place: Place_Keyword_Thesaurus: Gazetteer of Planetary Nomenclature Place_Keyword: Abalos Colles Place_Keyword: Abalos Mensa Place_Keyword: Abalos Scopuli Place_Keyword: Abalos Undae Place_Keyword: Boola Place_Keyword: Boreum Cavus Place_Keyword: Boreales Scopuli Place_Keyword: Chasma Boreale Place_Keyword: Crotone Place_Keyword: Dokka Place_Keyword: Escorial Place_Keyword: Gemina Lingula Place_Keyword: Gemini Scopuli Place_Keyword: Hyperboreum Lingula Place_Keyword: Hyperborei cavi Place_Keyword: Hyperboreae Undae Place_Keyword: Hyperboreus Labyrinthus Place_Keyword: Inuvik Place_Keyword: Jojutla Place_Keyword: Olympia Cavi Place_Keyword: Olympia RupÄs Place_Keyword: Olympia Planum Place_Keyword: Olympia Undae Place_Keyword: Olympia Mensae Place_Keyword: Planum Boreum Place_Keyword: Puyo Place_Keyword: RupÄs Tenuis Place_Keyword: Scandia Cavi Place_Keyword: Sevel Place_Keyword: Siton Undae Place_Keyword: Tenuis Cavus Place_Keyword: Tenuis Mensa Place_Keyword: Vastitas Borealis Place_Keyword: Udzha Stratum: Stratum_Keyword_Thesaurus: Mars Stratum_Keyword: Planum Boreum 1 unit Stratum_Keyword: Planum Boreum 2 unit Stratum_Keyword: Planum Boreum 3 unit Stratum_Keyword: Rupes Tenuis unit Stratum_Keyword: Vastitas Borealis unit Stratum_Keyword: Scandia region unit Stratum_Keyword: Undae unit Stratum_Keyword: crater unit Temporal: Temporal_Keyword_Thesaurus: Mars Temporal_Keyword: Amazonian Epoch Temporal_Keyword: Hesperian Epoch Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey Astrogeology Science Center Contact_Person: Corey Fortezzo Contact_Position: Geologist Contact_Address: Address_Type: Unknown Contact_Electronic_Mail_Address: cfortezzo@usgs.gov Data_Set_Credit: K.L. Tanaka and C. M. Fortezzo Security_Information: Security_Classification: Unclassified Native_Data_Set_Environment: ESRI ArcGIS 10.0 Data_Quality_Information: Lineage: Source_Information: Source_Citation: Citation_Information: Publication_Date: 20030331 Title: Neumann, G.A., Rowlands, D.D., Lemoine, F.G., Smith, D.E., and Zuber, M.T., 2001, Crossover analysis of Mars Orbiter Laser Altimeter data: Journal of Geophysical Research, v. 106, no. E10, p. 23,753-23,768. Type_of_Source_Media: satellite Source_Citation_Abbreviation: Spaceborne altimetry and image observations Source_Contribution: Mars Orbiter Laser Altimeter (MOLA), an instrument on NASA’s Mars Global Surveyor (MGS) spacecraft and the Context Camera (CTX), by Malin Space Science Systems, from the Mars Reconnaissance Orbiter (MRO) spacecraft Process_Step: Process_Description: Geologic units and boundary relations were primarily mapped using a MOLA-derived elevation and hillshade bases and a Context Imager (CTX) raster base from the Mars Reconnaissance Orbiter (MRO) Process_Date: 20110101 Attribute_Accuracy: Attribute_Accuracy_Report: All attributes cratered during the creation process were verified by displaying the lines in both the database and the spatial coverage and they are beleived to be logically consistent. Logical_Consistency_Report: These data are believed to be logically consistent. Line geometry is topologically clean. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: For the digital product presented herein, we used Mars Orbiter Laser Altimeter (MOLA) dataset to register the geologic map. The MOLA digital elevation model used for the base represents more than 600 million measurements gathered between 1999 and 2001, adjusted for consistency and converted to planetary radii. These have been converted to elevations above the areoid as determined from a martian gravity field solution GMM-2B, truncated to degree and order 50, and oriented according to current standards. The average accuracy of each point is originally ~100 meters in horizontal position and ~1 meter in radius (Neumann and others, 2003). However, the total elevation uncertainty is at least ±3 m due to the global error in the areoid (±1.8 meters) and regional uncertainties in its shape. The digital lines were drawn at approximately 1:2M scale. Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 1585 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 612 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 169 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 309 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 9 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 612 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 76 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 479 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 396 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 181 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: SIM3177_Geology Entity_Type_Definition: Polygon feature class, geologic unit polygon feature class. Contains a “Type” field denoting the unit name, and a “Symbol” field denoting the unit symbol Entity_Type_Definition_Source: USGS Detailed_Description: Entity_Type: Entity_Type_Label: SIM3177_Residual_Ice Entity_Type_Definition: Polygon feature class, denotes the extent of residual ice on the pole during north pole summer. Derived from MARCI image mosaic of 4 images that capture a single day on the pole. Mosaic included in map package. Entity_Type_Definition_Source: USGS Detailed_Description: Entity_Type: Entity_Type_Label: SIM3177_Contacts Entity_Type_Definition: Line feature class, geologic unit and map boundaries including symbol types: Approximate, boundary, certain, and gradational. Entity_Type_Definition_Source: USGS Detailed_Description: Entity_Type: Entity_Type_Label: SIM3177_Craters Entity_Type_Definition: Point feature class, center point locations of craters used in size frequency distributions. Subset of Robbins and Hynek crater database. Entity_Type_Definition_Source: USGS Detailed_Description: Entity_Type: Entity_Type_Label: SIM3177_Graben Entity_Type_Definition: Line feature class, denoting structural features Entity_Type_Definition_Source: USGS Detailed_Description: Entity_Type: Entity_Type_Label: SIM3177_Unconformity Entity_Type_Definition: lLine feature class, denoting breaks in the layered stratigraphy. Include both angular and parallel unconformities, although these are not distinguished from each other in the symbology or table. Entity_Type_Definition_Source: USGS Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: South Polar Stereographic Polar_Stereographic: Straight-Vertical_Longitude_from_Pole: 0.0 Standard_Parallel: 90.0 False_Easting: 0.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.1 Ordinate_Resolution: 0.1 Planar_Distance_Units: Meter Geodetic_Model: Horizontal_Datum_Name: D Mars 2000 Sphere Polar Ellipsoid_Name: Mars 2000 Sphere Polar Semi-major_Axis: 3396190.0 Denominator_of_Flattening_Ratio: 0.0 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Publications Contact_Person: Astrogeology Science Center Resource_Description: Downloadable Data 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: File Geodatabase Feature Dataset Format_Version_Number: 9.3 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/sim/3177/ Fees: None Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 20120815 Metadata_Reference_Information: Metadata_Date: 20110725 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey Astrogeology Science Center Contact_Person: Corey Fortezzo Contact_Position: Operational Geologist Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: None Metadata_Use_Constraints: The authors of the map guarantee the fidelity of the digital files down to, but not beyond, the hardcopy scale of 1:2,000,000. Metadata_Security_Information: Metadata_Security_Classification: Unclassified