Session: Intercalibration Scenario

This is a session of the GEOSS Architecture Workshop

The presentation prepared from the session includes the summary of the session on slides 6 & 7.

GEOSS Harmonization of Sensor Observations

The Global Earth Observing System of Systems (GEOSS) is to be a global, coordinated, comprehensive and sustained system of earth observing systems. The GEOSS architecture is being designed to facilitate coordinated access to data and products produced amongst all contributing systems. However, to effectively exploit information derived from disparate data sources, it is necessary to introduce consistency of content through guidelines to data providers for the appropriate characterization of the observing systems and their derived products. Ultimately, consistency can be provided through standardized "best practices"

Coordination with other GEO and related tasks:
• DA-06-02 (Data quality assurance strategy for space-based and related in-situ observations)
• CL-06-02 (Key Climate Data from Satellite Systems)
• DA-07-04 (Sensor Web Enablement for In-Situ Observing Network Facilitation)
• DA-07-05 (Higher Level Data Product Tools)
• WE-06-02 (Space-based Global Observing System for Weather)
• CEOS WGCV (Committee on Earth Observation Satellites, Working Group on Calibration and Validation)

Refining the GEO Data Quality Framework

Over the past three years, the CEOS WGCV, in conjunction with participants in DA-06-02, has developed a Data Quality Framework (DQF) for GEO. The CEOS Cal/Val Portal, a prototyping activity, designed to test and refine the guidelines presented in the DQF, has been instituted under ESA sponsorship. This activity is an extension of the historic (and extensive) participation in the WGISS Test Facility (WTF) by WGCV. This task was the principle topic of the GEO-CEOS Quality Assurance Workshop held at the GEO Secretariat in Geneva last October. A follow-up workshop is to occur at NIST in Gaithersburg, Maryland during the first week of May. A scenario involving the use of a common Antarctic Cal/Val site (Dome C) for selected optical and microwave observing systems from several national agencies, will be introduced at the Joint WGCV/WGISS Plenary to be held in Sanya China during the last week of February.

Workshop Session

This session seeks interaction across the GEO Community to identify standards and best practices for: calibrating and validating sensors. We will start a dialog on what is needed to characterize sensor capabilities in a manner which satisfies GEO needs. Furthermore, we will explore how the Architecture Implementation Pilot can facilitate the CEOS Cal/Val Portal, as well as how the Cal/Val Portal can contribute to meeting the objectives AIP.

Further Information

For a short introduction in to WGCV's Data Quality Framework activities is available.

A concept and strategy for a Global Space-based Inter-Calibration System (GSICS)