POTENTIAL OF FULL-POLARIMETRIC P- AND L-BAND SAR DATA IN CHARACTERIZING POST-FIRE RECOVERY OF ARCTIC TUNDRA

Yonghong Yi; Richard H. Chen; Mahta Moghaddam; John S. Kimball; Benjamin Jones; Charles E. Miller

doi:10.1109/IGARSS47720.2021.9553405

POTENTIAL OF FULL-POLARIMETRIC P- AND L-BAND SAR DATA IN CHARACTERIZING POST-FIRE RECOVERY OF ARCTIC TUNDRA

Yonghong Yi, Richard H. Chen, Mahta Moghaddam, John S. Kimball, Benjamin Jones, Charles E. Miller

Numeric Terradynamic Simulation Group

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We used the full polarimetric L-band and P-band SAR data collected from recent NASA Arctic Boreal Vulnerability Experiment (ABoVE) airborne campaign to understand the sensitivity of longwave radar backscatter intensity and phase to the post-fire recovery process of Arctic tundra. The 2007 Anaktuvuk River fire was used as a case study. At 10-years post-fire, we observed a strong increase (>~4 dB) in both the P- and L-band radar backscatter in the severely burned areas, in contrast to limited backscatter differences (VV, VH) between burned and unburned areas at C-band. The polarimetric target decomposition analysis indicated a general trend towards more random surface scattering, and strong increases of the double-bounce and volumetric scattering power at both P- and L-band in the burned areas. Large differences were also observed in the Pauli phase angle and the dominant-scattering-type Touzi phase angle between burned and adjacent unburned areas. The above changes are likely caused by increasing surface roughness and microtopography due to thermokarst development and ice degradation, and increasing subsurface scattering due to an overall drier and deeper active layer in the burned areas.

Original language	English
Title of host publication	IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1456-1459
Number of pages	4
ISBN (Electronic)	9781665403696
DOIs	https://doi.org/10.1109/IGARSS47720.2021.9553405
State	Published - 2021
Event	2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 - Brussels, Belgium Duration: Jul 12 2021 → Jul 16 2021

Publication series

Name	International Geoscience and Remote Sensing Symposium (IGARSS)
Volume	2021-July

Conference

Conference	2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021
Country/Territory	Belgium
City	Brussels
Period	07/12/21 → 07/16/21

Funding

This study was funded by the NASA Terrestrial Ecology Program. The research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA.

Funders	Funder number
National Aeronautics and Space Administration

Keywords

Active layer
P-band
Polarimetric decomposition
SAR backscatter
Tundra fire

Access to Document

10.1109/IGARSS47720.2021.9553405

Cite this

Yi, Y., Chen, R. H., Moghaddam, M., Kimball, J. S., Jones, B., & Miller, C. E. (2021). POTENTIAL OF FULL-POLARIMETRIC P- AND L-BAND SAR DATA IN CHARACTERIZING POST-FIRE RECOVERY OF ARCTIC TUNDRA. In IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings (pp. 1456-1459). (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2021-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IGARSS47720.2021.9553405

Yi, Yonghong ; Chen, Richard H. ; Moghaddam, Mahta et al. / POTENTIAL OF FULL-POLARIMETRIC P- AND L-BAND SAR DATA IN CHARACTERIZING POST-FIRE RECOVERY OF ARCTIC TUNDRA. IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. pp. 1456-1459 (International Geoscience and Remote Sensing Symposium (IGARSS)).

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abstract = "We used the full polarimetric L-band and P-band SAR data collected from recent NASA Arctic Boreal Vulnerability Experiment (ABoVE) airborne campaign to understand the sensitivity of longwave radar backscatter intensity and phase to the post-fire recovery process of Arctic tundra. The 2007 Anaktuvuk River fire was used as a case study. At 10-years post-fire, we observed a strong increase (>~4 dB) in both the P- and L-band radar backscatter in the severely burned areas, in contrast to limited backscatter differences (VV, VH) between burned and unburned areas at C-band. The polarimetric target decomposition analysis indicated a general trend towards more random surface scattering, and strong increases of the double-bounce and volumetric scattering power at both P- and L-band in the burned areas. Large differences were also observed in the Pauli phase angle and the dominant-scattering-type Touzi phase angle between burned and adjacent unburned areas. The above changes are likely caused by increasing surface roughness and microtopography due to thermokarst development and ice degradation, and increasing subsurface scattering due to an overall drier and deeper active layer in the burned areas.",

keywords = "Active layer, P-band, Polarimetric decomposition, SAR backscatter, Tundra fire",

author = "Yonghong Yi and Chen, {Richard H.} and Mahta Moghaddam and Kimball, {John S.} and Benjamin Jones and Miller, {Charles E.}",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 ; Conference date: 12-07-2021 Through 16-07-2021",

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Yi, Y, Chen, RH, Moghaddam, M, Kimball, JS, Jones, B & Miller, CE 2021, POTENTIAL OF FULL-POLARIMETRIC P- AND L-BAND SAR DATA IN CHARACTERIZING POST-FIRE RECOVERY OF ARCTIC TUNDRA. in IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings. International Geoscience and Remote Sensing Symposium (IGARSS), vol. 2021-July, Institute of Electrical and Electronics Engineers Inc., pp. 1456-1459, 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021, Brussels, Belgium, 07/12/21. https://doi.org/10.1109/IGARSS47720.2021.9553405

POTENTIAL OF FULL-POLARIMETRIC P- AND L-BAND SAR DATA IN CHARACTERIZING POST-FIRE RECOVERY OF ARCTIC TUNDRA. / Yi, Yonghong; Chen, Richard H.; Moghaddam, Mahta et al.
IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. p. 1456-1459 (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2021-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Yi Y, Chen RH, Moghaddam M, Kimball JS, Jones B, Miller CE. POTENTIAL OF FULL-POLARIMETRIC P- AND L-BAND SAR DATA IN CHARACTERIZING POST-FIRE RECOVERY OF ARCTIC TUNDRA. In IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings. Institute of Electrical and Electronics Engineers Inc. 2021. p. 1456-1459. (International Geoscience and Remote Sensing Symposium (IGARSS)). doi: 10.1109/IGARSS47720.2021.9553405

POTENTIAL OF FULL-POLARIMETRIC P- AND L-BAND SAR DATA IN CHARACTERIZING POST-FIRE RECOVERY OF ARCTIC TUNDRA

Abstract

Publication series

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Funding

Keywords

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