Arctic Field Projects



Project Title: Greenland Ice Sheet Monitoring Network (GLISN) Operations (Award# 1304011)

PI: Detrick, Robert S (detrick@iris.edu )
Phone: (202) 682.2220 
Institute/Department: Incorporated Research Institutions for Seismology,  
IPY Project?
Funding Agency: US\Federal\NSF\GEO\OPP\ARC\AON
Program Manager: Dr. Roberto Delgado (robdelga@nsf.gov)
Discipline(s): | Cryosphere | Cryosphere\Glaciology | Cryosphere\Ice Sheet Dynamics | Geological Sciences\Climate | Geological Sciences\Seismology | Instrument Development |

Project Web Site(s):
Data: http://ds.iris.edu/ds/nodes/dmc/
Project: http://www.iris.edu/aed2/index.phtml?code=GLISNNUU...
NSF_Award_Info: http://www.nsf.gov/awardsearch/showAward?AWD_ID=13...

Science Summary:
Greenland and the Arctic are changing rapidly, as dramatically manifested in the loss of ice from the Greenland Ice Sheet and rapid variations in the dynamic behavior of its outlet glaciers. Ice lost from Greenland contributes directly to changes in sea level, and influences climate indirectly through perturbations to ocean circulation and Earth's albedo. Investigations of the causes and consequences of changes in the Greenland Ice Sheet increasingly highlight the links between the solid Earth and the ice, ocean, and atmosphere systems. The Greenland Ice Sheet Monitoring Network (GLISN) is a broadband, multi-use seismological network, enhanced by selected geodetic observations, designed with the capability to allow researchers to understand the changes currently occurring in the Arctic, and with the operational characteristics necessary to enable response to those changes as understanding improves. GLISN was established through an international collaboration, with 10 nations coordinating their efforts to develop the current 32-station observing network during the last four years. In the U.S., the GLISN development effort has been undertaken on behalf of the seismological community by the Incorporated Research Institutions for Seismology (IRIS), a community-governed consortium, with funding from an NSF MRI award; IRIS has also provided leadership for the International GLISN project. All data from the network are freely and openly available, with complete metadata, via the IRIS Data Management Center and additional data centers in Europe. Of the 32 GLISN stations, 26 have commitments of long-term operational support from international partners. This proposal requests support for continued operations of six key stations of the network, as well as data quality control and data-management for the network. It also requests support for improvements to the telemetry capability at remote stations to maximize the scientific utility of the data, reduce data latency, and reduce logistics costs. Continued leadership by IRIS in the management and coordination of the International GLISN effort will ensure continued return of high-quality data from the full 32-station network.

Logistics Summary:
This project continues the International partnership started with funding under NSF grant 0922983 that created a seismic and geodetic real time Arctic observing network to monitor glacier earthquakes in Greenland. Named the Greenland Ice Sheet Monitoring Network (GLISN), this capability was established through the collaboration between 10 nations for a new broadband seismic capability. Under this grant, researchers continue the operations of the remaining 6 key stations of the GLISN network (DBG, DY2G, ICESG, NEEM, NUUK, SOEG), to continue telemetry support for a seventh remote station (NOR), as well as data quality control and data-management for 5 years. From 2014-2018, researchers will make annual trips to each of the remote sites to collect data, provide upgrades, perform preventive maintenance and repairs, and upgrade telemetry systems. They will set up remote camps for some of the annual visits. Colleagues from the Geological Survey of Denmark and Greenland (GEUS) will maintain sites at Thule, Narsarsuaq, Tasiilaq, Ittoqqortoormiit, Station Nord, Isortoq, and in 2017, Nuuk and Daneborg, arranging their own logistics. In 2016 a team of four will conduct the work during a month-long deployment. In late July, two researchers will meet in Iceland and fly on to Nuuk, where they will maintain the nearby station. They will then depart for Kangerlussuaq, where they will prepare for the installation of a station near DYE-2. Two additional researchers will arrive several days later, and all four will deploy to the installation site via LC-130. When that work is completed, they will all return to Kangerlussuaq via Twin Otter. One will depart Greenland. The other three will continue north to visit stations near Ilulissat and the NEEM ice camp before crossing the island to visit east coast sites. As the work allows, the team will drop from three to two. They will redeploy via Iceland. In 2017, a team of three (two researchers and one bear guard) will fly via Twin Otter from Akureyri, Iceland visiting one of their east coast seismometer sites at Sodalen (SOEG). They will then return to AEY where they will install skis on the Twin Otter and meet up with their third science team member. The following day they will fly back to Greenland to visit their ice sites: DY2G, ICESG, and NEEM with some overnight stops also in Kangerlussuaq, Ilulissat and possibly EGRIP. They will not visit their Nuuk (NUUK) and Daneborg (DBG) sites where instruments continue to run well. GEUS collaborators will download the data for the project. An additional, unplanned visit will take place in September of 2017 because in June the town of Nuugaatsiaq, Greenland experienced a destructive tsunami wave that severed power to the NUUG GLISN seismic station. Since that event, the GLISN team has been working with their Danish and Swiss colleagues, who have historically maintained the site, and the Government of Greenland to gain approval to visit the site to restore power and add autonomous telemetry capability. The station previously ran on main grid power and relied on TeleGreenland for real-time telemetry, which was lost as a result of the tsunami. With the abandonment of the Nuugaatsiaq village, it is important to restore this long-standing GLISN station due to proximity to the tsunamigenic source and potential for additional seismic activity. Two personnel will travel from Kangerlussuaq to the NUUG GLISN seismic station allowing approximately 48 hours at the site. They will be accompanied in the field by a bear guard from Uummannaq. In 2018 two trips are planned. Phase 1 in May/June and Phase 2 in August. For Phase 1, a team of three GLISN researchers will arrive in Kangerlussuaq at the end of May via commercial air. They will then fly via Twin Otter to the ICESG site to perform maintenance. They will remain overnight with the Twin Otter before returning to Kangerlussuaq to meet up with a fourth team member arriving on the ANG flight, 01 June. The Twin Otter will then fly the team to their GLISN site at DYE2/Raven camp where they will be dropped off for 3-4 days to complete the necessary work, while the Twin Otter will be working with another NSF project. After the team is picked up from DYE2G, they will then fly to their northern site at NEEM where they will spend an overnight. Once that is complete they will head back to Akureyri via EGRIP and Constable Pynt, where they will stop to refuel the Twin Otter. For Phase 2, in August 2018, a team of three (two researchers and one bear guard) will fly via Twin Otter from Akureyri, Iceland visiting their east coast seismometer sites at Sodalen (SOEG) and Kagssortoq (SE1). Also in Aug, GLISN personnel have arranged for the GNET team to stop by the NUUG site since their chartered helicopter will be flying nearby. GNET technicians will conduct any maintenance that is necessary at that site. Note: GLISN will not visit their Nuuk (NUUK) and Daneborg (DBG) sites this season where instruments continue to run well. GEUS collaborators will download the data for the project.

CPS will provide ANG flight coordination for cargo to/from Greenland and Camp Raven, air charters to remote sites, lodging in Kangerlussuaq and Akureyri, and camping/communications/safety gear. IRIS/PASSCAL will provide instrument development and management of installations. UNAVCO will provide consultation and remote data recovery support for the three on-ice GPS stations. The researchers will arrange and pay for all other logistics from the grant.
SeasonField SiteDate InDate Out#People
2014Greenland - Daneborg08 / 18 / 2014 08 / 23 / 20142
2014Greenland - DYE-208 / 09 / 2014 08 / 10 / 20142
2014Greenland - GLISN ICE-S08 / 11 / 2014 08 / 12 / 20142
2014Greenland - NEEM08 / 13 / 2014 08 / 15 / 20142
2014Greenland - Sodalen08 / 17 / 2014 08 / 18 / 20142
2015Greenland - Daneborg08 / 15 / 2015 08 / 20 / 20151
2015Greenland - DYE-205 / 16 / 2015 05 / 19 / 20153
2015Greenland - GLISN ICE-S05 / 08 / 2015 05 / 13 / 20153
2015Greenland - Kangerlussuaq04 / 24 / 2015 05 / 30 / 20154
2015Greenland - NEEM04 / 29 / 2015 05 / 05 / 20152
2015Greenland - Nuuk05 / 22 / 2015 05 / 30 / 20151
2016Greenland - Daneborg08 / 23 / 2016 08 / 24 / 20162
2016Greenland - DYE-208 / 06 / 2016 08 / 10 / 20164
2016Greenland - GLISN ICE-S08 / 11 / 2016 08 / 12 / 20163
2016Greenland - Kangerlussuaq08 / 01 / 2016 08 / 12 / 20164
2016Greenland - NEEM08 / 14 / 2016 08 / 16 / 20163
2016Greenland - Nuuk07 / 30 / 2016 08 / 01 / 20162
2016Greenland - Sodalen08 / 18 / 2016 08 / 19 / 20164
2017Greenland - Daneborg0
2017Greenland - DYE-208 / 06 / 2017 08 / 07 / 20173
2017Greenland - GLISN ICE-S08 / 08 / 2017 08 / 09 / 20173
2017Greenland - Ilulissat08 / 09 / 2017 08 / 10 / 20173
2017Greenland - Kangerlussuaq08 / 07 / 2017 09 / 12 / 20174
2017Greenland - NEEM08 / 10 / 2017 08 / 11 / 20173
2017Greenland - NUUG09 / 08 / 2017 09 / 10 / 20173
2017Greenland - Nuuk0
2017Greenland - Sodalen08 / 03 / 2017 08 / 04 / 20173
2017Greenland - Uummannaq09 / 07 / 2017 09 / 11 / 20173
2017Iceland - Akureyri07 / 29 / 2017 08 / 16 / 20173
2018Greenland - DYE-206 / 03 / 2018 06 / 07 / 20184
2018Greenland - GLISN ICE-S05 / 31 / 2018 06 / 01 / 20183
2018Greenland - Kangerlussuaq05 / 28 / 2018 06 / 14 / 20184
2018Greenland - NEEM06 / 08 / 2018 06 / 09 / 20184
2018Greenland - SE108 / 12 / 2018 08 / 13 / 20183
2018Greenland - Sodalen08 / 11 / 2018 08 / 12 / 20183
2018Iceland - Akureyri08 / 09 / 2018 08 / 15 / 20182
 


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