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Electromagnetic-laser
- 1.7, 5.0, 11.7 and 35.1 kHz
- Footprint 30-35m
- Δt= 10Hz Δx= 3-4m
200km data sets per flight
Ice thickness
Surface roughness
Bulk ice conductivity
Ocean Surface conductivity
Ice thickness profiles
Mean: 5.003
0 5 100
5
10
15
Ice Thickness Histogram
Ice Thickness (m)
Fre
que
ncy
(%
)
Mean: 5.999
-128.16 -128.14 -128.12
74.82
74.825
74.83
74.835
Flight Path Plot
Latit
ude
Longitude
10000
15000
20000
2500030000
1.812 1.814 1.816 1.818 1.82 1.822 1.824
x 104
5
6
7
8Ice Thickness Plot: FEM11037-16AUG2011RAW.DAT
Data Sample Number
Met
res
70 m
B1-S1 NRC line #3 North to South Aug. 16 afternoon 100m
ship
Marked Sled-NRC line
0 5 100
2
4
6
8
Ice Thickness Histogram
Ice Thickness (m)
Fre
quen
cy (
%)
Mean: 3.706
-128.6 -128.4 -128.2 -128 -127.874.75
74.8
74.85
74.9
74.95
Flight Path Plot
Latit
ude
Longitude
7500
15000
22500
30000
37500
45000
3.55 3.6 3.65 3.7 3.75 3.8 3.85 3.9 3.95
x 104
0
5
10Ice Thickness Plot: FEM11036-16AUG2011RAW.DAT
Data Sample Number
Met
res
3 km
~15km line section floe North of B1-S1 and ship
ship
1 2 3 4 5 6 7 8 9
B1-S1 marked sled-NRC line parallel to ship
190m long
4 lines flying N-S over marked line
And one (bottom)
Line soft-landing on first 10 markers
B1-S2
3 of 15 lines
~1500m each
1 2 3 4 5 6 7 8 9 10 1201101010
B1-S2 marked sled-NRC line
Three lines flown N-S in the fog on Aug 18 afternoon
And bottom line soft-landing at 10 markers
GPR Sunday Aug 14 north floeGPR probably is penetrating through while surface
low saline ice found above freeboard
GPR and laser distance
Helicopter is a moving reference frame
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