Day: January 18, 2012

Abstracts Sought for GIS-Pro 2012: URISA’s 50th Annual Conference for GIS Professionals

/ Matt Artz

URISAURISA is pleased to announce its milestone 50th year of fostering education and professional connections at its annual conference. GIS-Pro 2012: URISA’s 50th Annual Conference for GIS Professionals will take place September 30 to October 4, 2012 in Portland, Oregon.

The committee welcomes the submission of individual papers, complete sessions, luncheon presentations, panels, and lightning talks and has proposed a list of suggested topics for consideration (note that all abstracts received will be reviewed and considered for the conference program regardless of the list below):

Data and Applications of GIS

  • Data storage: cloud or in-house; new methods for compression; data de-duplication
  • Basemap updating/maintenance
  • Maps in the Cloud
  • Transportation & Transit (planning/mapping/management)
  • Addressing
  • Map communication: how to not make the “normal” mistakes

Technical

  • Open Source
  • Architecture
  • Server Technology/Cloud Computing
  • Leveraging the Tablet Explosion
  • Mobile Applications

Leadership and Management

  • GISP Certification
  • Esri ArcGIS Certification
  • Education: how to cope with reduction in budgets and still keep your people on top of the fast-paced changes

User and Business User

  • GIS Return on Investment (ROI)
  • Business process reengineering
  • GIS in the First Nations /Tribal Agencies
  • Reflections on the Past 50 years of URISA
  • GIS in the Social Sciences
  • “New” Uses for GIS
  • Geospatial Future
  • GIS in the Pacific Northwest

Abstract submissions will be accepted until Friday, February 17, 2012. Abstract submissions should include a presentation title and descriptive abstract text not to exceed 250 words.

URISA is pleased to welcome the Northwest GIS Users’ Group as co-host of GIS-Pro 2012.

The link to the Call for Presentations and general conference information is:  http://www.urisa.org/gispro2012

[Source: URISA press release]

Mapping Alteration Minerals at Malmbjerg Molybdenum Deposit, Central East Greenland, by Kohonen Self-organizing Maps and Matched Filter Analysis of HyMap Data

/ Matt Artz

International Journal of Remote SensingInternational Journal of Remote Sensing, Vol. 33, No. 4, 20 Feb 2012

Enton Bedini

“The Malmbjerg molybdenum deposit in central East Greenland is a world-class porphyry molybdenum deposit. The porphyry molybdenum deposit occurs within a granite stock intruded into sedimentary rocks. The Malmbjerg molybdenum deposit is associated with a pronounced zone of hydrothermal alteration. The reflectance spectra of rock samples from the Malmbjerg alteration assemblage show absorption features of a number of minerals including topaz, jarosite, goethite, muscovite, phengite, epidote, chlorite and smectite. This study investigated the Malmbjerg alteration assemblage using airborne imaging spectrometer data recorded by the HyMap imaging system. The HyMap data were analysed using an unsupervised classification based on Kohonen self-organizing maps and partial spectral unmixing based on the matched filter algorithm. The mapping results show the spatial distribution of jarosite, goethite, phengite, epidote/chlorite, smectite, topaz and non-altered sediments. The remote-sensing mapping results bring new information for the alteration assemblage at Malmbjerg, especially for the occurrence and the spatial distribution of a phengite zone in the altered sediments overlying the molybdenum deposit and for the propylitic alteration zone. The study is an example of detailed characterization by imaging spectrometry of alteration assemblages associated with porphyry molybdenum deposits. This research also shows the potential of imaging spectrometry as a tool for geological mapping and exploration in the Arctic regions of East Greenland.”