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An initial investigation of the Greenland perennial firn aquifer

General

Organisation
Project start
01.01.2013
Project end
31.12.2015
Type of project
ARMAP/NSF
Project theme
Cryosphere
Project topic
Cryosphere

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland Ice Sheet
Fieldwork location

Geolocation is 66.179261, -39.020469

Fieldwork start
01.04.2013
Fieldwork end
09.04.2013

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, Mid-East
Fieldwork location

Geolocation is 65.53600311279, -37.03099822998

Fieldwork start
27.03.2013
Fieldwork end
17.04.2013

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland Ice Sheet
Fieldwork location

Geolocation is 66.179261, -39.020469

Fieldwork start
27.03.2014
Fieldwork end
11.04.2014

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, Mid-East
Fieldwork location

Geolocation is 65.53600311279, -37.03099822998

Fieldwork start
22.03.2014
Fieldwork end
16.04.2014

SAR information

Project details

02.09.2019
Science / project plan

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Science / project summary
This EAGER project will conduct the first ever measurements of a newly discovered component of the Greenland Ice Sheet mass balance. The perennial firn aquifer (PFA) stores liquid water in the subsurface firn year-round, including throughout the winter. It was discovered in April 2011, but there were no measurements made within the PFA, thus its volume estimate and even formation process are unknown except for those from modeling. This project will use a wide variety of techniques to provide the first measurements of liquid water storage in the PFA. Density profiles and even simple observations of PFA stratigraphy assessing the relative proportions of firn, water, and solid ice will provide valuable data needed to calculate the unknown mass of the PFA. The project will also be able to identify the best measurement techniques, for further more complete assessment and future monitoring of the PFA, because a suite of measurement technologies will be tested during this field research. This grant is funded through EAGER because these unique drilling and measurement conditions force the research to be conducted in an exploratory manner with some aspects encountering high risk, but with high reward.
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