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Remote Sens. 2016, 8(11), 902; doi:10.3390/rs8110902

Multi-Instrument Inter-Calibration (MIIC) System

1
NASA Langley Research Center, Mail Stop 420, Hampton, VA 23681, USA
2
Mechdyne Corporation, Virginia Beach, VA 23462, USA
3
OPeNDAP, Inc., Butte, MT 59701, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Richard Müller and Prasad S. Thenkabail
Received: 21 September 2016 / Revised: 18 October 2016 / Accepted: 25 October 2016 / Published: 3 November 2016
View Full-Text   |   Download PDF [7338 KB, uploaded 3 November 2016]   |  

Abstract

In order to have confidence in the long-term records of atmospheric and surface properties derived from satellite measurements it is important to know the stability and accuracy of the actual radiance or reflectance measurements. Climate quality measurements require accurate calibration of space-borne instruments. Inter-calibration is the process that ties the calibration of a target instrument to a more accurate, preferably SI-traceable, reference instrument by matching measurements in time, space, wavelength, and view angles. A major challenge for any inter-calibration study is to find and acquire matched samples from within the large data volumes distributed across Earth science data centers. Typically less than 0.1% of the instrument data are required for inter-calibration analysis. Software tools and networking middleware are necessary for intelligent selection and retrieval of matched samples from multiple instruments on separate spacecraft. This paper discusses the Multi-Instrument Inter-Calibration (MIIC) system, a web-based software framework used by the Climate Absolute Radiance and Refractivity Observatory (CLARREO) Pathfinder mission to simplify the data management mechanics of inter-calibration. MIIC provides three main services: (1) inter-calibration event prediction; (2) data acquisition; and (3) data analysis. The combination of event prediction and powerful server-side functions reduces the data volume required for inter-calibration studies by several orders of magnitude, dramatically reducing network bandwidth and disk storage needs. MIIC provides generic retrospective analysis services capable of sifting through large data volumes of existing instrument data. The MIIC tiered design deployed at large institutional data centers can help international organizations, such as Global Space Based Inter-Calibration System (GSICS), more efficiently acquire matched data from multiple data centers. In this paper we describe the MIIC architecture and services. View Full-Text
Keywords: inter-calibration; CLARREO; OPeNDAP inter-calibration; CLARREO; OPeNDAP
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Currey, C.; Bartle, A.; Lukashin, C.; Roithmayr, C.; Gallagher, J. Multi-Instrument Inter-Calibration (MIIC) System. Remote Sens. 2016, 8, 902.

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