June 7, 2011

From Earth Science Information Partners (ESIP)

Participants

  • Gregory Leptoukh (NASA GSFC)
  • Greg Stensaas (USGS)
  • Oleg Aulov (UMBC)
  • Carol Meyer (ESIP)
  • Erin Robinson (ESIP)
  • Gary Foley (EPA)
  • Tyler Stevens (NASA GSFC)
  • Ed Armstrong (JPL)
  • Joanne Nightingale (NASA GSFC)
  • Phil Jones (NOAA NCDC)
  • Karen Moe (NASA GSFC)
  • Barry Weiss (JPL)
  • Fritz VanWijngaarden (Northrop Grumman)
  • W. Han (?)

Agenda

  • Greg Stensaas (Chair of the CEOS Cal/Val WG): "International Earth Observation Quality Assurance Efforts".
  • Preparation for the Summer EIP Meeting in Santa Fe: ESIP Summer 2011 Meeting
    • Speakers
    • Identify reps of various research and application communities for:
      • their understanding and requirements for quality
      • methodology they use to assess and quantify data quality
      • Communities: SST, Ocean color, Precipitation, Atm Chemistry, Land, Modeling, Applications (e.g., Air Quality),...

Old Action Items

  • Hook and Greg: setup a page for collecting and aliasing quality-related terms

Notes

Upload community-specific presentations/papers either to the Community portion of the web site

  • Greg Leptoukh noted that the agenda for the summer meeting breakout session is still fluid.
  • Ocean color community not able to attend
  • Invitations to NASA data quality PIs will be issued
  • AQ and Energy communities will be represented
  • Greg Stensaas, USGS & Chair of CEOS Calibration/Validation WG
  • Landsat program repsonsibilities shifting
  • continually trying to improve data accuracy
  • need to improve time series terrestrial data
  • integration of Landsat data with other data and sensors to support climate change research
  • Need calibration to improve accuracy across systems
  • requires better documentation
  • improves consistency across data sets
  • GCOS - improved definitions for Accuracy & Stability
  • better definitions for standards, processes and establish quality indicators
  • Need coordination among MANY players in the quality space
  • CEOS
  • GEOSS support for quality information for SBAs (timely, quality, long-term & global)
  • Quality Assurance Framework for Earth Observations (QA4EO) http://qa4eo.org
  • Reference standards can be test sites or a reference to a standard ("fit for purpose")
  • Definition has to be relevant to the whole suite of observations
  • October 18-20, 2011 QA4EO Workshop in Oxford, England (4th meeting) - "QA4EO Workshop on Providing Harmonised Quality Information in Earth Observation Data by 2015"
  • Joint Agency Commercial Imagery Evaluation (JACIE) - annual
  • Joint Agency Commercial Imagery Evaluation (JACIE) Workshop Boulder, Colorado, March 29-31, 2011 - an anual workshop that had 10 successful meetings already. Does a lot of work related to quality of data.
  • ESA GMES quality assurance requirements
  • Preceding provides an overview of many of the quality assurance efforts going on globally
  • important to work collaboratively across the many players
  • Q&A for Greg Stensaas
  • With multiple approaches for calibration & validation, how is th (Note: Greg L. - what was your question?)
  • calibration of instruments must be documented to international standards; still learning how to do this with, especially for user definitions of quality
  • validation
  • ISO standard use of "Geographic" language, why?
  • can relate it to both a spatial or temporal extent (either or both) - don't worry about the word
  • ISO/NP TS 19159 Geographic information - Calibration and validation of remote sensing imagery sensors and data
  • For the Workshop looking for support - strategic implementation team for GEO
  • ISO/CD 19157 Geographic information -- Data quality
  • With regard to QA4EO effort, how can ESIP support the task?
  • Need to show value of the development of quality indicators (e.g. Air Quality)
  • UK workshop will feature showcases
  • ISO Data Quality - processes
  • From the point of view of users, knowing total quality assurance from instrument to data product is essential (Foley)
  • Decision makers need some certainty that they data they're using is of high enough "quality" in order to be able to use it
  • Actions for Follow Up:
  • Link to Air Quality Working Group (Meyer/Robinson) - done
  • Obtain EPA Data Quality Documentation (Foley/Stensaas)
  • Invitations to CEOS Cal/Val WG subgroups (Meyer/Leptoukh/Stensaas/Nightingale)
  • Get slides from Greg Stensaas (Leptoukh/staff)

Action Items

  • All: continue looking for speakers and community reps