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Remote Sens. 2016, 8(1), 72; doi:10.3390/rs8010072

Inter-Comparison of S-NPP VIIRS and Aqua MODIS Thermal Emissive Bands Using Hyperspectral Infrared Sounder Measurements as a Transfer Reference

1
Science Systems and Applications, Inc., 10210 Greenbelt Rd., Lanham, MD 20706, USA
2
Sciences and Exploration Directorate, NASA/GSFC, Greenbelt, MD 20771, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Changyong Cao, Magaly Koch and Prasad S. Thenkabail
Received: 26 October 2015 / Revised: 28 December 2015 / Accepted: 8 January 2016 / Published: 19 January 2016
(This article belongs to the Collection Visible Infrared Imaging Radiometers and Applications)
View Full-Text   |   Download PDF [2010 KB, uploaded 19 January 2016]   |  

Abstract

This paper compares the calibration consistency of the spectrally-matched thermal emissive bands (TEB) between the Suomi National Polar-orbiting Partnership (S-NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) and the Aqua Moderate Resolution Imaging Spectroradiometer (MODIS), using observations from their simultaneous nadir overpasses (SNO). Nearly-simultaneous hyperspectral measurements from the Aqua Atmospheric Infrared Sounder(AIRS) and the S-NPP Cross-track Infrared Sounder (CrIS) are used to account for existing spectral response differences between MODIS and VIIRS TEB. The comparison uses VIIRS Sensor Data Records (SDR) in MODIS five-minute granule format provided by the NASA Land Product and Evaluation and Test Element (PEATE) and Aqua MODIS Collection 6 Level 1 B (L1B) products. Each AIRS footprint of 13.5 km (or CrIS field of view of 14 km) is co-located with multiple MODIS (or VIIRS) pixels. The corresponding AIRS- and CrIS-simulated MODIS and VIIRS radiances are derived by convolutions based on sensor-dependent relative spectral response (RSR) functions. The VIIRS and MODIS TEB calibration consistency is evaluated and the two sensors agreed within 0.2 K in brightness temperature. Additional factors affecting the comparison such as geolocation and atmospheric water vapor content are also discussed in this paper. View Full-Text
Keywords: VIIRS; MODIS; AIRS; CrIS; thermal emissive bands; calibration VIIRS; MODIS; AIRS; CrIS; thermal emissive bands; calibration
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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

Li, Y.; Wu, A.; Xiong, X. Inter-Comparison of S-NPP VIIRS and Aqua MODIS Thermal Emissive Bands Using Hyperspectral Infrared Sounder Measurements as a Transfer Reference. Remote Sens. 2016, 8, 72.

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