Validation of GOES-16 ABI infrared spatial response uniformity

Fangfang Yu; Xiangqian Wu; Haifeng Qian; John Van Naarden; Michael Ramirez; Dan Lindsey; Chad Gravelle; Mathew Gunshor; Tim Schmit; Xi Shao; Zhipeng Wang; Hyelim Yoo; Bob Iacovazzi; Vladimir Kondratovich

doi:10.1117/12.2322147

7 September 2018 Validation of GOES-16 ABI infrared spatial response uniformity

Fangfang Yu, Xiangqian Wu, Haifeng Qian, John Van Naarden, Michael Ramirez, Dan Lindsey, Chad Gravelle, Mathew Gunshor, Tim Schmit, Xi Shao, Zhipeng Wang, Hyelim Yoo, Bob Iacovazzi, Vladimir Kondratovich

Author Affiliations +

Proceedings Volume 10764, Earth Observing Systems XXIII; 107640F (2018) https://doi.org/10.1117/12.2322147
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

GOES-16, the first new generation of NOAA’s geostationary satellite, was launched on November 19, 2016. The Advanced Baseline Imager (ABI) is the key payload of the mission. The instrument performance and satellite intercalibration results show that infrared (IR) radiances are well calibrated and very stable. Yet during its early post-launch tests (PLT) and post-launch product tests (PLPT) period, several calibration anomalies were identified with the IR bands: 1) the IR measurements of the Continental United States (CONUS) and mesoscale (MESO) images demonstrated an artificial periodicity of 15 minutes - Periodic Infrared Calibration Anomaly (PICA), in line with the Mode-3 timeline; and 2) the calibration coefficients displayed small discontinuities twice a day around satellite noon and midnight, which resulted in slight detectable diurnal calibration variations. This work is to report our investigation to the root causes of these anomalies, validation of the anomaly corrections, and assessment of the impacts of the corrections on the radiance quality. By examining the radiometrically calibrated space-swath radiance collected from the moon chasing events, it was found that these anomalies were attributed to the residuals of the spatial uniformity corrections for the scan mirrors. A new set of scan mirror emissivity correction Look-Up Tables (LUTs) were later delivered by the Vendor and implemented operationally. Further analyses showed that the new emissivity LUTs significantly reduced the periodic radiometric variation and diurnal variations. The same method will be applied to validate the IR spatial uniformity for the future GOES-R series ABI instruments.

Conference Presentation

Citation Download Citation

Fangfang Yu, Xiangqian Wu, Haifeng Qian, John Van Naarden, Michael Ramirez, Dan Lindsey, Chad Gravelle, Mathew Gunshor, Tim Schmit, Xi Shao, Zhipeng Wang, Hyelim Yoo, Bob Iacovazzi, and Vladimir Kondratovich "Validation of GOES-16 ABI infrared spatial response uniformity", Proc. SPIE 10764, Earth Observing Systems XXIII, 107640F (7 September 2018); https://doi.org/10.1117/12.2322147

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available