© 2005, Open Geospatial Consortium, Inc. OGC Planetary Update and the Mars Program 53 rd OGC Technical Committee Meetings Bonn, November 9, 2005 Trent

© 2005, Open Geospatial Consortium, Inc.© 2005, Open Geospatial Consortium, Inc.

OGC Planetary UpdateOGC Planetary Updateand the Mars Program and the Mars Program

5353rdrd OGC Technical Committee Meetings OGC Technical Committee MeetingsBonn, November 9, 2005Bonn, November 9, 2005

Trent HareTrent HareUSGS, AstrogeologyUSGS, Astrogeology

© 2005, Open Geospatial Consortium, Inc.2

Helping the World to CommunicateGeographically

OutlineOutline

• Planetary Support in the OGC– Planetary Working Group? (charter posted, pending doc. 05-100)– A couple example issues– Next targeted tasks

• OGC Planetary Examples• Mars Environmental GIS (NASA’s Planetary Protection)

– meeting summary



CRS IssuesCRS Issues

• W*S Requests– REQUEST=GetMap&SRS=EPSG:4326&VERSION=1.1.1

– CubeWerx has informally defined EPSG:42180,42181,42080– Need more than Mars and more formal codes

• Positive East is always assumed



ISO / GML Issues ISO / GML Issues (more minor)(more minor)

<element name="PrimeMeridian" type="gml:PrimeMeridianType" substitutionGroup="gml:Definition"> <annotation> <documentation>A gml:PrimeMeridian defines the origin from which longitude values … </annotation> </element> <complexType name="PrimeMeridianType"> <complexContent> <extension base="gml:IdentifiedObjectType"> <sequence> <element ref= </sequence> </extension> </complexContent> </complexType> <element name="greenwichLongitude" type="gml:AngleType"> <annotation> <documentation>gml:greenwichLongitude is the longitude of the prime meridian … </annotation> </element>

"gml:greenwichLongitude"/>



GML/JPEG2000 Interoperability TestGML/JPEG2000 Interoperability Test

• That said – Mars WORKS!– Even though we needed an extra schema for greenwichLongitude.

MarsCRS.xsd:<element name="ReferenceLongitude" type="gml:AngleChoiceType“

substitutionGroup="gml:greenwichLongitude"><annotation>

<documentation>Longitude of the prime meridian measured from the ReferenceLongitude meridian, positive eastward. </documentation></annotation>

</element>

• JPEG2000 has been recently “officially” approved to be used as a data format. Need to work on the GML version.



Small Scale Measures Small Scale Measures (geodesic measurements)(geodesic measurements)

• Planetary mappers often deal with mapping at global scales• If geodesic measures are supported, many default to WGS84.

– W*S clients should be able to (*based on the defined CRS*)

• Return geodesic distances, profiles• Calculate areas correctly• Measure geodesic angles• Geodesic buffers



Priority Planetary OGC TopicsPriority Planetary OGC Topics

–CRS support• Implement Planetary Code Space (i.e. planetary EPSG)

• Implement CRS Registry Service• Update CRS semantics to allow easier planetary defn

–WMS (but really all -- W*S)–WPS or WCPS (band ratios, viewsheds, etc.)

• Make sure planetary needs are also voiced



Planetary OGC ExamplesPlanetary OGC Examples

JPL’s WMS onMars: showing Mars Topography JPL’s WMS onMars: showing Mars Topography (with SLD)(with SLD)




NASA’s Worldwind accessing JPL’s WMS server (16 bit Png for topo, Image texture, topography NASA’s Worldwind accessing JPL’s WMS server (16 bit Png for topo, Image texture, topography colorized using SLD and transparent over image)colorized using SLD and transparent over image)

2X




JMARS JMARS (Mars Odyssey THEMIS Mission Planner)(Mars Odyssey THEMIS Mission Planner)

By Arizona State UniversityBy Arizona State University




Callisto, Ganymede, Titan)Callisto, Ganymede, Titan) USGS Server (Mars, Moon, Venus, Io, Europa, USGS Server (Mars, Moon, Venus, Io, Europa,



Planetary Web GIS ExamplesPlanetary Web GIS Examples

Ohio StateOhio StateMissionMissionSupportSupport



• USGS Titan Mission Support

Planetary Web GIS ExamplesPlanetary Web GIS Examples



Insert ESA Mars Server Insert ESA Mars Server HEREHERE

not yet releasednot yet released




Mars Program (MEGIS)Mars Program (MEGIS)

Report of the Mars Environmental GIS Report of the Mars Environmental GIS Workshop, Oct. 5-6, 2005Workshop, Oct. 5-6, 2005

Workshop held October 5-6, 2005, SETI Offices, Mountain View, Workshop held October 5-6, 2005, SETI Offices, Mountain View, CACA

Report dated: Oct. 27, 2005Report dated: Oct. 27, 2005

Proposed bibliographic citation:MEGIS Participants (2005). Report of the Mars Environmental GIS Workshop, Oct. 5-6, 2005. Unpublished

presentation file, 44 p, posted November, 2005 by the Mars Exploration Program Analysis Group (MEPAG) at http://mepag.jpl.nasa.gov/workshop/index.html.



MEGIS Workshop Desired OutcomesMEGIS Workshop Desired Outcomes

1. An assessment of the potential for a Mars environmental interpretive and query capability using GIS to provide an environmental classification of different sites on Mars with respect to both planetary protection concerns and science opportunities.

2. A description of the characteristics a Mars environmental GIS would need in order to achieve that potential and to optimize its utility.

3. A development plan describing the work needed to achieve the envisioned future state, including priorities and budget.



MEGIS ParticipantsMEGIS Participants

Workshop Organizers: Beaty, Buxbaum and Syvertson (Mars Program Office), and Lobitz and McKay (ARC).



Summary of MEGIS Workshop Conclusions (2 of 3)Summary of MEGIS Workshop Conclusions (2 of 3)

2. The environmental classifications could be best integrated via a GIS—in fact, the workshop concluded that this is probably the ONLY way to achieve a credible result.

3. Drawing spatially resolved habitability interpretations is but one application of a broad-based martian GIS.

a) Several prototype GISs have been developed for Mars, three of which were demonstrated at the workshop. They illustrate both the potential value and some of the challenge areas of setting up a system of global scope.

b) There are key lessons to be learned from GIS experience on mapping spatial data on Earth. These also illustrate some of the potential and some of the challenge areas.

c) Planetary protection decision making is one potential use of a full martian GIS, and support for developing this aspect of GIS capabilities will contribute to establishing broad program-level capability.



Report from Break-out Group #2: IT ConsiderationsReport from Break-out Group #2: IT Considerations

MEGISMEGIS Recommendations Recommendations• Form a “tiger team” to evaluate GIS issues and options• Clarify PP data gaps, analysis, and modeling

requirements• Produce data (types, format, and interface) and analysis

specifications (including time-series data) for a prototype PP MEGIS and build it

• Facilitate putting datasets judged to be important into GIS• Provide researcher and public access through web

services, e.g., web map server (WMS) and web coverage server (WCS)



Report from Break-out Group #2: IT ConsiderationsReport from Break-out Group #2: IT Considerations

MEGIS Recommendations (cont)MEGIS Recommendations (cont)

• Provide “on-line services” to help process datasets that are not easily derived as a single final product (e.g., MOC narrow angle, THEMIS visible images).

• Work with future mission planners to “task” instruments and define processing steps to meet geodetic standards

• Develop outreach activities to educate the planetary community about the benefits of:– GIS software for spatial analyses– Community-supported data formats



Planetary OGC ConclusionsPlanetary OGC Conclusions

• We want to advertise the need for planetary support in the OGC so members may remember (when possible) to leave out Earth-centric speak.

• Push interoperability via the OGC to planetary agencies– ESA, JSA, NASA Agencies, Universities, Planetary Data System, etc.

• Interest in OGC members for a Planetary Working Group. Includes colleagues that may have planetary interests that don’t know they are needed here yet.

please contact if interested: [email protected]



Sunset over Gusev Crater, MarsSunset over Gusev Crater, Mars

Documents

© 2005, Open Geospatial Consortium, Inc. OGC Planetary Update and the Mars Program 53 rd OGC Technical Committee Meetings Bonn, November 9, 2005 Trent