NDLI: Enhancement of sub-daily positioning solutions for surface deformation monitoring at Deception volcano (South Shetland Islands, Antarctica)

Content Provider	Springer Nature Link
Author	Prates, G. Berrocoso, M. Fernández Ros, A. García, A.
Copyright Year	2013
Abstract	Deception Island is one of the most visited places in Antarctica. There are biological, geological, and archeological features that are major attractions within Port Foster, its horse shoe-shaped natural inner bay, and two scientific bases that are occupied during austral summers. Deception Island is an active volcano, however, and needs to be monitored in order to reduce risk to people on the island. Surface deformation in response to fluid pressure is one of the main volcanic activities to observe. Automated data acquisition and processing using the global navigation satellite systems allow measurements of surface deformation in near real time. Nevertheless, the positioning repeatability in sub-daily solutions is affected by geophysical influences such as ocean tidal loading, among others. Such periodic influences must be accurately modeled to achieve similar repeatability as daily solutions that average them. However, a single solution each 24 h will average out the deformation suffered during that period, and the position update waiting time can be a limitation for near real-time purposes. Throughout the last five austral summer campaigns in Deception, using simultaneous wireless communications between benchmarks, a processing strategy was developed to achieve millimeter-level half-hourly positioning solutions that have similar repeatability as those given by 24-h solutions. For these half-hourly solutions, a tidal analysis was performed to assess any mismodeling of ocean tide loading, and a discrete Kalman filter was designed and implemented to enhance the sub-daily positioning repeatability. With these solutions, the volcano-dynamic activity resulting in localized surface deformation for the last five austral summer campaigns is addressed. Although based on only three carefully located benchmarks, it is shown that Deception has been shortening and subsiding during these last 4 years. The method’s accuracy in baselines up to a few hundred kilometers assures its applicability to other volcanoes worldwide.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISSN	02588900
Journal	Bulletin of Volcanology
Volume Number	75
Issue Number	2
e-ISSN	14320819
Language	English
Publisher	Springer-Verlag
Publisher Date	2013-02-01
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Volcano monitoring Satellite geodesy Tidal analysis Kalman filter Antarctica Geology Geophysics/Geodesy Mineralogy Sedimentology
Content Type	Text
Resource Type	Article
Subject	Geochemistry and Petrology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Enhancement of sub-daily positioning solutions for surface deformation surveillance at El Hierro volcano (Canary Islands, Spain)

Origin and evolution of the Deception Island caldera (South Shetland Islands, Antarctica)

Cyclic degassing of Erebus volcano, Antarctica

First recorded eruption of Nabro volcano, Eritrea, 2011

Hydrogen emissions from Erebus volcano, Antarctica

Magma storage conditions of the last eruption of Teide volcano (Canary Islands, Spain)

Transient deformation following the 30 January 1997 dike intrusion at Kīlauea volcano, Hawai’i

The volcano-tectonic evolution of Concepción, Nicaragua

Identifying hazards associated with lava deltas

Enhancement of sub-daily positioning solutions for surface deformation monitoring at Deception volcano (South Shetland Islands, Antarctica)

Similar Documents

Enhancement of sub-daily positioning solutions for surface deformation surveillance at El Hierro volcano (Canary Islands, Spain)

Origin and evolution of the Deception Island caldera (South Shetland Islands, Antarctica)

Cyclic degassing of Erebus volcano, Antarctica

First recorded eruption of Nabro volcano, Eritrea, 2011

Hydrogen emissions from Erebus volcano, Antarctica

Magma storage conditions of the last eruption of Teide volcano (Canary Islands, Spain)

Transient deformation following the 30 January 1997 dike intrusion at Kīlauea volcano, Hawai’i

The volcano-tectonic evolution of Concepción, Nicaragua

Identifying hazards associated with lava deltas

Enhancement of sub-daily positioning solutions for surface deformation monitoring at Deception volcano (South Shetland Islands, Antarctica)