Advancing FRP Retrieval: Bridging Theory and Application

Weizhi Deng; Meng Zhou; Jun Wang; Zhixin Xue; Zhendong Lu; Xi Chen; Huanxin Zhang; David A. Peterson; Edward J. Hyer; Arlindo M. Da Silva

doi:10.1109/TGRS.2024.3470538

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Advancing FRP Retrieval: Bridging Theory and Application

Journal article

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Advancing FRP Retrieval: Bridging Theory and Application

Weizhi Deng, Meng Zhou, Jun Wang, Zhixin Xue, Zhendong Lu, Xi Chen, Huanxin Zhang, David A. Peterson, Edward J. Hyer and Arlindo M. Da Silva

IEEE transactions on geoscience and remote sensing, Vol.62, pp.1-16

2024

DOI: 10.1109/TGRS.2024.3470538

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Abstract

This study addresses two key uncertainties in the Fire Radiative Power (FRP) retrieval, essential for global top-down fire emission inventories. First, it proposes a novel FRP retrieval method by incorporating the ~8.6 μm channel alongside ~4 μm using Monte Carlo simulation. This inclusion significantly improves the accuracy of FRP retrieval, especially for highly smoldering fires. Second, atmospheric correction is conducted using the state-of-the-art radiative transfer model (UNL-VRTM). The importance of atmospheric correction is demonstrated through the single-channel (~4 μm) FRP retrievals from the MODIS Active Fire (AF), VIIRS AF, and second-generation Fire Light Detection Algorithm (FILDA-2) products. Post-correction results show effective mitigation of nighttime FRP angular dependency, achieved by considering the enhanced atmospheric attenuation due to longer path length off-nadir. However, a residual daytime FRP angular dependency remains, likely due to biases in the daytime fire detection algorithm. Additionally, an enhanced agreement is observed between the FILDA-2 FRP retrievals from Suomi-NPP and NOAA-20 satellites when correcting for viewing geometry differences. Lastly, a global FRP increase is noted across all three products, with VIIRS AF and FILDA-2 showing more significant increases (65.8% and 62.5%, respectively) than MODIS AF (20.8%). These advancements in FRP retrievals indicate a concurrent enhancement in downstream fire emission products, including reduced angular dependency of fire emissions that will benefit the air pollution modeling community.

Atmospheric correction

combustion efficiency

fire emission

fire radiative power (FRP)

Moderate Resolution Imaging Spectroradiometer (MODIS)

modified combustion efficiency (MCE)

Visible Infrared Imaging Radiometer Suite (VIIRS)

wildfire

Details

Title: Subtitle: Advancing FRP Retrieval: Bridging Theory and Application
Creators: Weizhi Deng - University of Iowa
Meng Zhou - Goddard Space Flight Center
Jun Wang - University of Iowa
Zhixin Xue - University of Iowa
Zhendong Lu - University of Iowa
Xi Chen - University of Iowa, Iowa Technology Institute
Huanxin Zhang
David A. Peterson - Naval Research Laboratory Marine Meteorology Division
Edward J. Hyer - Naval Research Laboratory Marine Meteorology Division
Arlindo M. Da Silva - Goddard Space Flight Center
Resource Type: Journal article
Publication Details: IEEE transactions on geoscience and remote sensing, Vol.62, pp.1-16
Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC; PISCATAWAY
DOI: 10.1109/TGRS.2024.3470538
ISSN: 0196-2892
eISSN: 1558-0644
Grant note: NASA's Terra, Aqua, and SNPP Program: 80NNSC21L1976 NASA's Modeling and Analysis Program (MAP): 80NSSC21K1494
This work was supported in part by the NASA's Terra, Aqua, and SNPP Program under Award 80NNSC21L1976; and in part by the NASA's Modeling and Analysis Program (MAP) under Award 80NSSC21K1494.
Language: English
Electronic publication date: 09/30/2024
Date published: 2024
Academic Unit: Physics and Astronomy; Electrical and Computer Engineering; Chemical and Biochemical Engineering; Iowa Technology Institute; Civil and Environmental Engineering
Record Identifier: 9984721240602771

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