GRAFIIR and JAFIIR – Efficient End-to-End Semi Automated GEO and LEO Sensor Performance Analysis and Verification Systems

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Monday, 5 January 2015
Mathew Gunshor, CIMSS/Univ. of Wisconsin, Madison, WI; and H. Zhang, E. Schiffer, and A. Huang

The next generation imagers of national operational environmental satellites are being developed under the GOES-R (geostationary) and JPSS (polar-orbiting) programs. In support of these missions, CIMSS at the University of Wisconsin-Madison is contributing to the critical role of performing tasks for risk reduction, data processing system framework, proving ground, next generation sensor design and tradeoff, sensor impacts on algorithm performance, and calibration/validation. This work is being done in concert with other major ongoing efforts, such as the GOES-R Algorithm Working Group (AWG), and in support of JPSS program system development and science advancement.

This presentation will overview the updated capabilities of GOES-R Analysis Facility for Instrument Impacts on Requirements (GRAFIIR) and the JPSS sister program JAFIIR. GRAFIIR is a mature ongoing program under the GOES-R AWG in its 9th year, while JAFIIR is leveraging the tools built for GRAFIIR. GRAFIIR is a system facility established to leverage a host of GOES-R projects including AWG proxy, AWG algorithms, AWG Imagery and McIDAS visualization, GOES-R Risk Reduction, sensor tradeoff and calibration/validation. GRAFIIR is for “connecting the dots”, the components that have been built and/or are under development, to provide a flexible framework to effectively adopt component algorithms toward analyzing the sensor measurements with different elements of sensor characteristics (i.e. noise, navigation, band to band co-registration, diffraction, etc.) and their impact on products. GRAFIIR continues to play a key role in assisting government on addressing instrument specification waivers. The CIMSS GOES-R GRAFIIR team has responded to 12 ABI waiver/deviation requests to date. JAFIIR will provide much the same service for JPSS as GRAFIIR elements and tools are adapted to fit the JPSS program. In addition, JAFIIR supports performance analysis of the next series of JPSS sensor suites which would leverage the technology advancement and emerging operational requirements.

One of the components developed for GRAFIIR is GLANCE, an efficient comparison analysis tool built to assess and evaluate many of the GOES-R data and products in a consistent and semi-automated way. This tool can be used to ensure the instrument effects on the products can be fully accounted for, characterized and product performance can be analyzed. GLANCE will also be highlighted to demonstrate a truly functional and effective end-to-end system which supports both NOAA's LEO and GEO future environmental satellite missions.