CAN Bog Breathing be Measured by Synthetic Aperture Radar Interferometry

Tauri Tampuu; Francesco De Zan; Robert Shau; Jaan Praks; Marko Kohv; Ain Kull

doi:10.1109/IGARSS46834.2022.9883421

CAN Bog Breathing be Measured by Synthetic Aperture Radar Interferometry

Tauri Tampuu^*
, Francesco De Zan
, Robert Shau
, Jaan Praks
, Marko Kohv
, Ain Kull

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

5 Citations (Web of Science)

Abstract

Accounting for relatively large seasonal and short term peatland surface vertical displacements with Synthetic Aperture Radar Interferometry (InSAR) poses a problem of possible propagation of ambiguity errors. Notwithstanding, the absence of continuous high temporal resolution peatland surface levelling measurements for validation has been something characteristic. Based on the ground levelling from a raised bog, we demonstrate the Sentinel-1 distributed scatterer (DS) time-series InSAR technique underestimates real surface displacements and hereby we question the accuracy of the approach over peatlands. When the relative surface change from 6-day interferograms is used instead of accounting for the absolute change, the estimation accuracy improves (Spearman's rho 0.82, p-value < 0.002) because 6-day in situ surface changes are usually small and do not need InSAR phase unwrapping. Despite a serious unwrapping problem in peatlands, DS time series contain useful signal and differential InSAR (DInSAR) might have potential for assessment of short term peatland surface displacements in favourable conditions.

Original language	English
Title of host publication	IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium
Publisher	IEEE
Pages	16-19
Number of pages	4
ISBN (Electronic)	978-1-6654-2792-0
DOIs	https://doi.org/10.1109/IGARSS46834.2022.9883421
Publication status	Published - 2022
MoE publication type	A4 Conference publication
Event	IEEE International Geoscience and Remote Sensing Symposium - Kuala Lumpur, Malaysia Duration: 17 Jul 2022 → 22 Jul 2022

Publication series

Name	IEEE International Geoscience and Remote Sensing Symposium proceedings
ISSN (Print)	2153-6996
ISSN (Electronic)	2153-7003

Conference

Conference	IEEE International Geoscience and Remote Sensing Symposium
Abbreviated title	IGARSS
Country/Territory	Malaysia
City	Kuala Lumpur
Period	17/07/2022 → 22/07/2022

Funding

This study is part of a PhD research supported by the European Union from the European Regional Development Fund, the national scholarship program Kristjan Jaak and by grants of Estonian State Forest Management Centre (LL-TOM17250) and Estonian Environmental Investment Centre (SLOOM12006 and SLOOM14103). The authors would like to thank Karsten Kretschmer (DLR) for help with Python and the Sarproz team for providing an excellent software with extremely flexible student licensing.

Keywords

InSAR
Peatland
Phase ambiguity
Sentinel-1
Surface deformation

Access to Document

10.1109/IGARSS46834.2022.9883421

Cite this

Tampuu, T., De Zan, F., Shau, R., Praks, J., Kohv, M., & Kull, A. (2022). CAN Bog Breathing be Measured by Synthetic Aperture Radar Interferometry. In IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium (pp. 16-19). (IEEE International Geoscience and Remote Sensing Symposium proceedings). IEEE. https://doi.org/10.1109/IGARSS46834.2022.9883421

@inproceedings{12fca5c3ef484589991275d6507353c3,

title = "CAN Bog Breathing be Measured by Synthetic Aperture Radar Interferometry",

abstract = "Accounting for relatively large seasonal and short term peatland surface vertical displacements with Synthetic Aperture Radar Interferometry (InSAR) poses a problem of possible propagation of ambiguity errors. Notwithstanding, the absence of continuous high temporal resolution peatland surface levelling measurements for validation has been something characteristic. Based on the ground levelling from a raised bog, we demonstrate the Sentinel-1 distributed scatterer (DS) time-series InSAR technique underestimates real surface displacements and hereby we question the accuracy of the approach over peatlands. When the relative surface change from 6-day interferograms is used instead of accounting for the absolute change, the estimation accuracy improves (Spearman's rho 0.82, p-value < 0.002) because 6-day in situ surface changes are usually small and do not need InSAR phase unwrapping. Despite a serious unwrapping problem in peatlands, DS time series contain useful signal and differential InSAR (DInSAR) might have potential for assessment of short term peatland surface displacements in favourable conditions.",

keywords = "InSAR, Peatland, Phase ambiguity, Sentinel-1, Surface deformation",

author = "Tauri Tampuu and \{De Zan\}, Francesco and Robert Shau and Jaan Praks and Marko Kohv and Ain Kull",

note = "Funding Information: This study is part of a PhD research supported by the European Union from the European Regional Development Fund, the national scholarship program Kristjan Jaak and by grants of Estonian State Forest Management Centre (LL-TOM17250) and Estonian Environmental Investment Centre (SLOOM12006 and SLOOM14103). The authors would like to thank Karsten Kretschmer (DLR) for help with Python and the Sarproz team for providing an excellent software with extremely flexible student licensing. Publisher Copyright: {\textcopyright} 2022 IEEE.; IEEE International Geoscience and Remote Sensing Symposium , IGARSS ; Conference date: 17-07-2022 Through 22-07-2022",

year = "2022",

doi = "10.1109/IGARSS46834.2022.9883421",

language = "English",

series = "IEEE International Geoscience and Remote Sensing Symposium proceedings",

publisher = "IEEE",

pages = "16--19",

booktitle = "IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium",

address = "United States",

}

Tampuu, T, De Zan, F, Shau, R, Praks, J, Kohv, M & Kull, A 2022, CAN Bog Breathing be Measured by Synthetic Aperture Radar Interferometry. in IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium. IEEE International Geoscience and Remote Sensing Symposium proceedings, IEEE, pp. 16-19, IEEE International Geoscience and Remote Sensing Symposium , Kuala Lumpur, Malaysia, 17/07/2022. https://doi.org/10.1109/IGARSS46834.2022.9883421

CAN Bog Breathing be Measured by Synthetic Aperture Radar Interferometry. / Tampuu, Tauri; De Zan, Francesco; Shau, Robert et al.
IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2022. p. 16-19 (IEEE International Geoscience and Remote Sensing Symposium proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - CAN Bog Breathing be Measured by Synthetic Aperture Radar Interferometry

AU - Tampuu, Tauri

AU - De Zan, Francesco

AU - Shau, Robert

AU - Praks, Jaan

AU - Kohv, Marko

AU - Kull, Ain

N1 - Funding Information: This study is part of a PhD research supported by the European Union from the European Regional Development Fund, the national scholarship program Kristjan Jaak and by grants of Estonian State Forest Management Centre (LL-TOM17250) and Estonian Environmental Investment Centre (SLOOM12006 and SLOOM14103). The authors would like to thank Karsten Kretschmer (DLR) for help with Python and the Sarproz team for providing an excellent software with extremely flexible student licensing. Publisher Copyright: © 2022 IEEE.

PY - 2022

Y1 - 2022

N2 - Accounting for relatively large seasonal and short term peatland surface vertical displacements with Synthetic Aperture Radar Interferometry (InSAR) poses a problem of possible propagation of ambiguity errors. Notwithstanding, the absence of continuous high temporal resolution peatland surface levelling measurements for validation has been something characteristic. Based on the ground levelling from a raised bog, we demonstrate the Sentinel-1 distributed scatterer (DS) time-series InSAR technique underestimates real surface displacements and hereby we question the accuracy of the approach over peatlands. When the relative surface change from 6-day interferograms is used instead of accounting for the absolute change, the estimation accuracy improves (Spearman's rho 0.82, p-value < 0.002) because 6-day in situ surface changes are usually small and do not need InSAR phase unwrapping. Despite a serious unwrapping problem in peatlands, DS time series contain useful signal and differential InSAR (DInSAR) might have potential for assessment of short term peatland surface displacements in favourable conditions.

AB - Accounting for relatively large seasonal and short term peatland surface vertical displacements with Synthetic Aperture Radar Interferometry (InSAR) poses a problem of possible propagation of ambiguity errors. Notwithstanding, the absence of continuous high temporal resolution peatland surface levelling measurements for validation has been something characteristic. Based on the ground levelling from a raised bog, we demonstrate the Sentinel-1 distributed scatterer (DS) time-series InSAR technique underestimates real surface displacements and hereby we question the accuracy of the approach over peatlands. When the relative surface change from 6-day interferograms is used instead of accounting for the absolute change, the estimation accuracy improves (Spearman's rho 0.82, p-value < 0.002) because 6-day in situ surface changes are usually small and do not need InSAR phase unwrapping. Despite a serious unwrapping problem in peatlands, DS time series contain useful signal and differential InSAR (DInSAR) might have potential for assessment of short term peatland surface displacements in favourable conditions.

KW - InSAR

KW - Peatland

KW - Phase ambiguity

KW - Sentinel-1

KW - Surface deformation

UR - https://www.scopus.com/pages/publications/85140382014

U2 - 10.1109/IGARSS46834.2022.9883421

DO - 10.1109/IGARSS46834.2022.9883421

M3 - Conference article in proceedings

AN - SCOPUS:85140382014

T3 - IEEE International Geoscience and Remote Sensing Symposium proceedings

SP - 16

EP - 19

BT - IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium

PB - IEEE

T2 - IEEE International Geoscience and Remote Sensing Symposium

Y2 - 17 July 2022 through 22 July 2022

ER -

CAN Bog Breathing be Measured by Synthetic Aperture Radar Interferometry

Abstract

Publication series

Conference

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this