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INSPIRE Track 1: Acoustic Sensor Networks for Ice-Covered Seas

General

Organisation
Project start
01.01.2014
Project end
31.12.2019
Type of project
ARMAP/NSF
Project theme
Ocean & fiord systems
Project topic
Oceanography

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, North-West
Fieldwork location

Geolocation is 77.4836, -69.2593

Fieldwork start
17.03.2017
Fieldwork end
18.03.2017

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, North-West
Fieldwork location

Geolocation is 76.53199768066, -68.70300292969

Fieldwork start
06.04.2017
Fieldwork end
20.04.2017

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, North-West
Fieldwork location

Geolocation is 76.53199768066, -68.70300292969

Fieldwork start
01.01.2018
Fieldwork end
31.12.2018

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, North-West
Fieldwork location

Geolocation is 76.53199768066, -68.70300292969

Fieldwork start
01.01.2019
Fieldwork end
31.12.2019

SAR information

Project details

02.07.2019
Science / project plan

.

Science / project summary
This project aims to accomplish three objectives: 1) collect acoustic measurements for scattering and propagation studies, 2) test physical-layer receiver performance (data rates, biterror- rate, ranges), and 3) demonstrate the feasibility of the sensor network in the Arctic Ocean over a multi-month period (March to August, 2016). The researchers will design and develop an integrated underwater acoustic sensor network for ice-covered seas. They will expand the limits and capabilities of underwater communication networks in the transition zone where sea ice changes from 1) smooth land-fast ice to 2) ridged mobile ice to 3) open water. This transition zone evolves in both time and space within the 30-50 km foot-print of the planned networked sensor and communication network array. This goal requires integration of both existing knowledge from a set of diverse disciplines and intellectual innovations within each discipline. It will modify underwater communication network theory, coastal acoustic propagation and scattering, and experimental design of oceanography. Providing long-term, long-range acoustic connectivity, the research team will address three major new research challenges: 1) Mid-frequency (1-5 kHz), mid-range (10 km) acoustic wave propagation in the transition zone; 2) Data telemetry in the new communication environment; and 3) Resilient sensor networks that cope with and harness complex dynamics of the transition zone. The multi-disciplinary team would implement reliable modem hardware, integrate it with resilient network protocol, and optimize the system design for Arctic deployment to support an ocean experiment off Thule, Greenland. The sensor and communication network will support 1) long-term, intelligent distributed Arctic observing systems, 2) assimilation of remote-sensing and in-situ under-ice measurements, and 3) regional and global climate modeling with real-time measurements. Such a network holds the promise to revolutionize under-ice ocean sampling in polar regions. Data would be broadly disseminated via the web and archived for public access. Planned outreach includes participation in the field program of Greenlandic residents from the Inupiat village of Qaanaaq and meaningful classroom involvement from the elementary to community college levels. The researchers are also committed to outreach through their global print, radio, TV, and electronic media contacts.
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