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Investigating the polar regions from the inside out

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A-NET G-NET GAMSEIS LAP-NET Long-Term Network

A-NET PARTICIPANTS
Ohio State University (lead)
Jet Propulsion Lab / Cal Tech
New Mexico Tech
Colorado State University

Penn State University
Central Washington University
Univ. of Memphis Univ. of Texas – Inst. For Geophysics
Washington University
U.S. Geological Survey

With facility support from:
PASSCAL
UNAVCO
Canada
Chile
Germany/Russia
New Zealand
Italy
U.K.

Antarctic Network

Led by Ohio State University, ANET is a GPS and seismic network spanning West Antarctica and the Transantarctic Mountains, the main mountain range separating East and West Antarctica. One of the reasons ANET is so unique and valuable is because its backbone network consists of both GPS and seismic instrumentation.  This allows for a more complete understanding of the interactions between the ice sheets and the underlying bedrock. GPS stations record how the bedrock is moving in response to changes in ice mass.  However, the strength of the Earth’s interior also influences how the bedrock deforms.  Seismic stations record data that allows us to understand the properties of the Earth’s interior, like the strength of the crust and underlying mantle, giving us a more complete understanding of how the Earth is responding to changes in the ice sheets.  ANET uses improved technologies to record measurements year-round and to transmit data from remote sites to archives in the USA.

ANET Partner Project: CAPGIA
Glacial Isostatic Adjustment Constraints for the Antarctic Peninsula

Eight new GPS receivers have been installed on bedrock in the southern Antarctic Peninsula for improvements in glacial isostatic adjustment (GIA) model accuracy and GRACE-based ice mass change estimates.  These sites act as a regional densification of the ANET project.

Participants:
Newcastle Upon Tyne, United Kingdom


ANET Partner Project: VLNDEF
Victoria Land Network for DEFormation Control

VLNDEF consists of 28 GPS sites on bedrock in northern Victoria Land, led by Dr. Alessandro Capra of University of Modena and Reggio Emilia, Italy and supported by Progetto Nazionale di Ricerca in Antartide (PNRA). VLNDEF largely consists of campaign-style (non-continuous) data collection, but also includes the continuously-operating GPS station at Mario Zuchelli Station and 4 remote GPS stations operating quasi-continuously.


ANET Partner Project: LARISSA
LARsen Ice Shelf, Antarctica

LARISSA is a multi-disciplinary NSF-funded study of the LARsen Ice Shelf System, Antarctica, led by Dr. Eugene Domack, Hamilton College, USA. In 2008-9 and 2010-11, 6 new continuous GPS systems were installed on bedrock to measure GIA in the region of the former Larsen B.

Participants:
Hamilton College
Belgium-Ghent University
Argentina-Argentine Antarctic Institute
Ukraine-National Antarctic Scientific Center in Kiev
Korean Polar Research Institute