Mercury 5M GIS Conversion

Primary Authors

Marc Hunter

Originators

Donna Galuszka

Publisher

USGS Astrogeology Science Center

Publication Date

2016-05-16

Abstract

These polygons are beased on the original created 1:5M geologic maps for Mercury as published in the late 80's and early 90's as created by several authors. The original GIS conversion was completed in 1999 using older photomosaic bases as part of a larger digitization effort. To make this dataset more useful with modern data it has been smoothed (ArcGIS PAEK smoothing method with a tolerance of 10 km) and transformed (projective transformation) to align with the 2013 Messenger base map. Links used to transform the data are included with this documentation. A polyline feature class was then derived from the polygons and attributed with contact types. All datasets use the slightly smaller Mercury radius of 2439000 m rather than the Mercury 2000 radius of 2439700 m. References: Geologic Map of the Bach Region of Mercury; H-15; Strom, RG, et al. Geologic Map of the Beethoven Quadrangle of Mercury; H-7; King, J.S., et al. Geologic Map of the Borealis Region of Mercury; H-01; Grolier, M.J., et al. Geologic Map of the Discovery Quadrangle of Mercury; H-11; Trask, N.J., et al. Geologic Map of the Kuiper Quadrangle of Mercury; H-6; De Hon, Rene, et al. Geologic Map of the Michelangelo Quadrangle of Mercury; H-12; Spudis, P.D., et al. Geologic Map of the Shakespeare Quadrangle of Mercury; H-3; Guest, John, et al. Geologic Map of the Tolstoj Quadrangle of Mercury; H-8; Schaber, G.G., et al. Geologic Map of the Victoria Quadrangle of Mercury; H-2; McGill, George, et al. All mid 80' to early 90's http://planetarymapping.wr.usgs.gov/Target/project/16

Purpose

Updated converted GIS maps to a more current MESSENGER base map.

Contact and Distribution

Format

Geologic Map

Access Constraints

None

Access Scope

MRCTR

Use Constraints

None

Edition

2.0

Supplemental Information

http://planetarymapping.wr.usgs.gov/Target/project/16

Native Data Set Environment

ESRI Arcinfo, GDAL

Astrogeology Theme

Geographic Information System (GIS), Geology, Photogeology

Mission Names

Mariner

Online Package Link

https://astrogeology.usgs.gov/search/map/mercury_5m_gis_conversion

External File Size

744380978

Online File Link

http://astropedia.astrogeology.usgs.gov/download/Mercury/Geology/Mercury_5M_GIS_conversion_v2.zip

Contact Address

2255 N. Gemini Drive

Contact City

Flagstaff

Contact State

AZ

Contact Postal Code

86001

Contact Email

astroweb@usgs.gov

Data Status and Quality

Time Period of Content (start)

2016-04-01

Time Period of Content (stop)

2016-05-16

Currentness Reference

Publication date

Progress

Complete

Update Frequency

None planned

Logical Consistency

warped original GIS layers to more current MESSENGER-based base map

Completeness Report

These do not cover Mercury. Coverage only available for original maps.

Process Description

To make the original GIS conversion more useful with modern data it has been smoothed (ArcGIS PAEK smoothing method with a tolerance of 10 km) and transformed (projective transformation) to align with the 2013 Messenger basemap. Links used to transform the data are included with this documentation.

Source Title

Geologic Maps of the yyyy Region of Mars

Source Online Linkage

http://planetarymapping.wr.usgs.gov/Target/project/16

Source PDS Archive

Magellan

Attribute Accuracy Report

Best Effort

Horizontal Positional Accuracy Report

Best Effort

Vertical Positional Accuracy Report

Best Effort

Geospatial Information

Target

Mercury

Minimum Latitude

-90

Maximum Latitude

90

Minimum Longitude

-180

Maximum Longitude

180

Direct Spatial Reference Method

Vector

Object Type

Grid Cell

Quad System

Mercury 1:5M

Quad Name

Radius A

2439000

Radius C

2439000

Control Net

MESSENGER

Map Scale (hard-copy)

5000000

Map Projection Name

Simple Cylindrical

Latitude Type

Planetocentric

Longitude Direction

Positive East

Longitude Domain

-180 to 180