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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