Three-dimensional surface deformation related to the 2017 North Korea nuclear test observed by SAR offset-tracking approach

Won Kyung Baek; Min Jeong Jo; Hyung Sup Jung

doi:10.1109/IGARSS.2018.8517843

Three-dimensional surface deformation related to the 2017 North Korea nuclear test observed by SAR offset-tracking approach

Won Kyung Baek, Min Jeong Jo, Hyung Sup Jung

Department of Geoinformatics

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

Abstract

North Korea conducted the sixth nuclear test in Punggye-ri on 3 September 2017. An artificial earthquake of Mw 6.3 was reported near North Korea's Punggye-ri nuclear test site. Several minutes later, a second smaller earthquake followed the initial event, and it was characterized as a collapse of the cavity. The large and complex deformations related to the earthquakes occurred in the ground surface. It is very important to measure the artificial earthquake-related deformations, because it enables us to estimate the location, depth and cavity radius of the nuclear test. We observed the three-dimensional surface deformations related to the sixth North Korea nuclear test using the ascending and descending ALOS-2 PALSAR-2 radar offset-tracking. We used the multi-kernel offset tracking method to improve the precision of the offset-tracking measurement. The maximum deformation of more than 3 m was observed in the horizontal direction. We estimated the location, depth and cavity radius using the Mogi model. The estimated depth and cavity radius are about 600 m and about 52 m, respectively. The satellite offset-tracking observation will contribute to the nuclear test monitoring and characterization.

Original language	English
Title of host publication	2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1392-1394
Number of pages	3
ISBN (Electronic)	9781538671504
DOIs	https://doi.org/10.1109/IGARSS.2018.8517843
State	Published - 31 Oct 2018
Event	38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Valencia, Spain Duration: 22 Jul 2018 → 27 Jul 2018

Publication series

Name	International Geoscience and Remote Sensing Symposium (IGARSS)
Volume	2018-July

Conference

Conference	38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018
Country/Territory	Spain
City	Valencia
Period	22/07/18 → 27/07/18

Keywords

ALOS2
Mogi model
Nuclear test
Offset-tracking observation
SAR

Access to Document

10.1109/IGARSS.2018.8517843

Cite this

Baek, W. K., Jo, M. J., & Jung, H. S. (2018). Three-dimensional surface deformation related to the 2017 North Korea nuclear test observed by SAR offset-tracking approach. In 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings (pp. 1392-1394). Article 8517843 (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2018-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IGARSS.2018.8517843

Baek, Won Kyung ; Jo, Min Jeong ; Jung, Hyung Sup. / Three-dimensional surface deformation related to the 2017 North Korea nuclear test observed by SAR offset-tracking approach. 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 1392-1394 (International Geoscience and Remote Sensing Symposium (IGARSS)).

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title = "Three-dimensional surface deformation related to the 2017 North Korea nuclear test observed by SAR offset-tracking approach",

abstract = "North Korea conducted the sixth nuclear test in Punggye-ri on 3 September 2017. An artificial earthquake of Mw 6.3 was reported near North Korea's Punggye-ri nuclear test site. Several minutes later, a second smaller earthquake followed the initial event, and it was characterized as a collapse of the cavity. The large and complex deformations related to the earthquakes occurred in the ground surface. It is very important to measure the artificial earthquake-related deformations, because it enables us to estimate the location, depth and cavity radius of the nuclear test. We observed the three-dimensional surface deformations related to the sixth North Korea nuclear test using the ascending and descending ALOS-2 PALSAR-2 radar offset-tracking. We used the multi-kernel offset tracking method to improve the precision of the offset-tracking measurement. The maximum deformation of more than 3 m was observed in the horizontal direction. We estimated the location, depth and cavity radius using the Mogi model. The estimated depth and cavity radius are about 600 m and about 52 m, respectively. The satellite offset-tracking observation will contribute to the nuclear test monitoring and characterization.",

keywords = "ALOS2, Mogi model, Nuclear test, Offset-tracking observation, SAR",

author = "Baek, {Won Kyung} and Jo, {Min Jeong} and Jung, {Hyung Sup}",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE; 38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 ; Conference date: 22-07-2018 Through 27-07-2018",

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doi = "10.1109/IGARSS.2018.8517843",

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Baek, WK, Jo, MJ & Jung, HS 2018, Three-dimensional surface deformation related to the 2017 North Korea nuclear test observed by SAR offset-tracking approach. in 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings., 8517843, International Geoscience and Remote Sensing Symposium (IGARSS), vol. 2018-July, Institute of Electrical and Electronics Engineers Inc., pp. 1392-1394, 38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018, Valencia, Spain, 22/07/18. https://doi.org/10.1109/IGARSS.2018.8517843

Three-dimensional surface deformation related to the 2017 North Korea nuclear test observed by SAR offset-tracking approach. / Baek, Won Kyung; Jo, Min Jeong; Jung, Hyung Sup.
2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. p. 1392-1394 8517843 (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2018-July).

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

TY - GEN

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AU - Jo, Min Jeong

AU - Jung, Hyung Sup

PY - 2018/10/31

Y1 - 2018/10/31

N2 - North Korea conducted the sixth nuclear test in Punggye-ri on 3 September 2017. An artificial earthquake of Mw 6.3 was reported near North Korea's Punggye-ri nuclear test site. Several minutes later, a second smaller earthquake followed the initial event, and it was characterized as a collapse of the cavity. The large and complex deformations related to the earthquakes occurred in the ground surface. It is very important to measure the artificial earthquake-related deformations, because it enables us to estimate the location, depth and cavity radius of the nuclear test. We observed the three-dimensional surface deformations related to the sixth North Korea nuclear test using the ascending and descending ALOS-2 PALSAR-2 radar offset-tracking. We used the multi-kernel offset tracking method to improve the precision of the offset-tracking measurement. The maximum deformation of more than 3 m was observed in the horizontal direction. We estimated the location, depth and cavity radius using the Mogi model. The estimated depth and cavity radius are about 600 m and about 52 m, respectively. The satellite offset-tracking observation will contribute to the nuclear test monitoring and characterization.

AB - North Korea conducted the sixth nuclear test in Punggye-ri on 3 September 2017. An artificial earthquake of Mw 6.3 was reported near North Korea's Punggye-ri nuclear test site. Several minutes later, a second smaller earthquake followed the initial event, and it was characterized as a collapse of the cavity. The large and complex deformations related to the earthquakes occurred in the ground surface. It is very important to measure the artificial earthquake-related deformations, because it enables us to estimate the location, depth and cavity radius of the nuclear test. We observed the three-dimensional surface deformations related to the sixth North Korea nuclear test using the ascending and descending ALOS-2 PALSAR-2 radar offset-tracking. We used the multi-kernel offset tracking method to improve the precision of the offset-tracking measurement. The maximum deformation of more than 3 m was observed in the horizontal direction. We estimated the location, depth and cavity radius using the Mogi model. The estimated depth and cavity radius are about 600 m and about 52 m, respectively. The satellite offset-tracking observation will contribute to the nuclear test monitoring and characterization.

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SP - 1392

EP - 1394

BT - 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018

Y2 - 22 July 2018 through 27 July 2018

ER -

Baek WK, Jo MJ, Jung HS. Three-dimensional surface deformation related to the 2017 North Korea nuclear test observed by SAR offset-tracking approach. In 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2018. p. 1392-1394. 8517843. (International Geoscience and Remote Sensing Symposium (IGARSS)). doi: 10.1109/IGARSS.2018.8517843

Three-dimensional surface deformation related to the 2017 North Korea nuclear test observed by SAR offset-tracking approach

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