Estimating Fire Radiative Power Using Weather Radar Products for Wildfires

Saide, P. E.; Krishna, M.; Ye, X.; Thapa, L. H.; Turney, F.; Howes, C.; Schmidt, C. C.

doi:10.1029/2023gl104824

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Estimating Fire Radiative Power Using Weather Radar Products for Wildfires

2023
By Saide, P. E. ; Krishna, M. ; Ye, X. ; ...
Source: Geophysical Research Letters, 50(21)

[PDF-3.05 MB]

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Details:

Journal Title:

Geophysical Research Letters
Personal Author:

Saide, P. E. ; Krishna, M. ; Ye, X. ; Thapa, L. H. ; Turney, F. ; ... More +

Saide, P. E. ; Krishna, M. ; Ye, X. ; Thapa, L. H. ; Turney, F. ; Howes, C. ; Schmidt, C. C. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research)
Description:

Satellite‐based Fire radiative power (FRP) retrievals are used to track wildfire activity but are sometimes not possible or have large uncertainties. Here, we show that weather radar products including composite and base reflectivity and equivalent rainfall integrated in the vicinity of the fires show strong correlation with hourly FRP for multiple fires during 2019–2020. Correlation decreases when radar beams are blocked by topography and when there is significant ground clutter (GC) and anomalous propagation (AP). GC/AP can be effectively removed using a machine learning classifier trained with radar retrieved correlation coefficient, velocity, and spectrum width. We find a power‐law best describes the relationship between radar products and FRP for multiple fires combined (0.67–0.76 R2). Radar‐based FRP estimates can be used to fill gaps in satellite FRP created by cloud cover and show great potential to overcome satellite FRP biases occurring during extreme fire events.
Keywords:

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General Earth And Planetary Sciences Geophysics
Source:

Geophysical Research Letters, 50(21)
DOI:

https://doi.org/10.1029/2023gl104824
ISSN:

0094-8276;1944-8007;
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Funding:

Grant no. NA18OAR4310107
License:

https://creativecommons.org/licenses/by-nc/4.0/
Rights Information:

CC BY-NC
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Library
Main Document Checksum:

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urn:sha256:85ff2a2b02f431a751b1cef289edfabc9c6a4047bdc2aa9f74b68d0867b9fe17
Download URL:

https://repository.library.noaa.gov/view/noaa/59235/noaa_59235_DS1.pdf
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