Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

Sea ice program at Bedford Inst. of Oceanography

in Canadian Archipelago,

Labrador shelf and Gulf of St. Lawrence Work

S. Prinsenberg, C. Tang, T.Yao, I. Peterson,

G. Fowler, J. Hamilton and D. Belliveau

Contractors:

Scott Holladay, Geosensors

Loius Lalumiere, Sensors by Design

Dave Fissel, Arctic Sciences

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

Sea ice program at Bedford Inst. of Oceanography

- Can. Arctic Archipelago circulation and pack ice

- Labrador-Baffin Bay ice-ocean coupled model

- Sea ice Labrador Shelf flux mooring (ADCP and ULS)

- Iceberg population forecast

- Validation of sea ice properties in satellite imagery and

of pack ice thickness evolution

- Can. Space Agency-PERD project:

- Gulf of St. Lawrence Feb-Mar 2004

- Beaufort Sea April-May 2004

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

1. Validation of sea ice properties in satellite imagery

- enhance CIS automatic operational system

- enhance quality of ice chart information

Can. Space Agency projectGulf of St. Lawrence Feb-Mar 2004

Beaufort Sea April-May 2004

- part of CASES (B. Barber)

- part of CSA-Grip (K. Willson)

- part of PERD (AGC D. Forbes)

2. Validation of pack ice thickness evolution

- validate ice thickness module

- enhance quality of ice chart informationPERD project (Gulf of St. Lawrence Feb-Mar 2004)

Fisheries and OceansCanada Bedford Institute of Oceanography

Video/Laser Sensor: Ice concentration and ice roughness

Ridge/lead distributions

Electromagnetic Induction

and Laser Sensors:

Ice thickness and ice roughness

Helicopter-borne sensors

to observe pack ice properties

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

Fixed-mounted EM/Laser

- easy to operate and maintain

- footprint 2.5x height above water

- 2-5cm accuracy over flat ice

- for on-ice spot samples

- for low flying at 1- 6m

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

Line section data collected on March 8, 2001 with towed sensor “Ice Probe”

5m 75m 75m

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

Validation of sea ice properties in satellite imagery

- Gulf of St. Lawrence Feb-Mar 2004

- enhance CIS automatic operational system

- enhance quality of ice chart information

Can. Space Agency GRIP - project:

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

Ice thickness distribution

March 6, 1966 65km x 75km Radarsat ScanSAR © CSA/ASC, 1966

Histogram of observed ice thickness (total line)

Histogram of just level ice, presently reported on ice charts and simulated by ice models

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

3 ENVISAT images

North Cape Feb. 16-17

East Cape Feb. 17-18

Planned flight track

Blizzard occurred on Feb. 18-19

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

GPS Satellite-tracked beacons to re-align data sets

5 beacons deployed Feb.16

2 reported after the Feb.19 Storm

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

50m

2m

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

PERD: Evolution of Ice thickness distribution

2 of 5beacons survived storm of 18-19 Feb. NW and NE winds

Ice thickness sampling:

-Feb. 16-18

-Feb. 24-25

and March 22-25

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

Fisheries and Oceans Pêches et OcéansCanada CanadaBedford Institute of Oceanography

26370 feb25

26370 feb16