Helo July 28

 

Helo albedo flight
28-Jul
High clouds with a few breaks of partial sun The melt ponds are ice free
Windy, 25 - 30 kts at surface
Underwater probe was transmitting very little light - replaced with backup
0 Calibration
1 Calibration
2 Calibration
3 Calibration
4 Calibration
5 Calibration
6 Flight deck
Time Comments
Takeoff 10:50:22
Albedo line Polycorder 1 in use
100 feet 10:52:05 Poly1 on
7 East - west 100 feet took a few photos
8 East - west 100 feet
9 East - west 100 feet
10 East - west 100 feet
11 East - west 100 feet
12 East - west 100 feet
13 East - west 100 feet
14 East - west 100 feet
15 East - west 100 feet
16 East - west 100 feet
17 East - west 100 feet Poly 1 off
200 feet 10:53:23 Poly 1 on
18 East - west 200 feet
19 East - west 200 feet
20 East - west 200 feet
21 East - west 200 feet
22 East - west 200 feet
23 East - west 200 feet
24 East - west 200 feet
25 East - west 200 feet
26 East - west 200 feet
27 East - west 200 feet
28 East - west 200 feet 10:53:47 Poly 1 off
Straight up at 100 m mark on line 10:55:10 Poly 1 on
29 10 feet more pictures taken
30 20 feet
31 30 feet
32 40 feet
33 50 feet
34 60 feet
35 70 feet
36 80 feet
37 90 feet
38 100 feet
39 150 feet
40 200 feet
41 250 feet
42 300 feet
43 350 feet
44 400 feet
45 450 feet
46 500 feet
47 600 feet
48 700 feet
49 800 feet
50 900 feet
51 1000 feet 10:56:36 Poly 1 off
Next comes three flights around a box 3 nm on a side starting just north of the ship
The flights are at elevations of 100', 400', and 800'
Begin box at 100' 10:58:10 Poly 1 on
 
11:00:14 end first leg of box Poly 1 off
11:00:38 begin next leg Poly 1 on
11:02:25 end second leg of box Poly 1 off
11:02:41 begin next leg Poly 1 on
11:04:58 end third leg of box Poly 1 off
11:05:15 begin next leg Poly 1 on
11:08:24 end last leg of box Poly 1 off
The ship and the ice are drifting NE at about 1/2 kt displacing the box a bit
11:13:04 Begin first leg of box at 400'; Poly 1 on
11:14:25 end first leg of box Poly 1 off
11:14:48 begin next leg Poly 1 on
11:16:50 end second leg of box Poly 1 off
11:17:09 begin next leg Poly 1 on
11:19:40 end third leg of box Poly 1 off
11:19:52 begin next leg Poly 1 on
11:23:18 end last leg of box Poly 1 off
The ship is still drifting as mentioned above
11:28:49 Begin first leg of box at 800'; Poly 1 on
11:30:16 end first leg of box Poly 1 off
11:30:50 begin next leg Poly 1 on
11:32:50 end second leg of box Poly 1 off
11:33:25 begin next leg Poly 1 on
11:36:19 end third leg of box Poly 1 off
11:36:32 begin next leg Poly 1 on
11:39:49 end last leg of box Poly 1 off
The ship and the ice are drifting NE at about 1/2 kt displacing the box a bit
11:41:33 Start of a north-south flight at 100' over the same line we fly at the end of the large photo flights
from north of the ship to the first lead system to the south
Polycorder 2 switched in
11:43:59 beginning of lead
11:44:12 end of lead
11:45:09 Hover over the middle of the last lead to calibrate the ASD
11:45:38 End of hover
11:47:35 Begin Low pass from N to S over Sarah's lake; Poly 2 on
11:47:54 start of lake
11:48:05 end of lake
11:48:17 end of scan - Poly 2 off
11:49:13 Begin Low pass from E to W over Sarah's lake; Poly 2 on
11:49:27 start of lake
11:49:37 end of lake
11:50:54 end of scan - Poly 2 off
11:51:17 Begin vertical profile from 20' - Poly 2 on
Profile is once again over the albedo line
11:53:41 End vertical profile at 2000' - Poly 2 off
12:00 Kt-19 powered down
12:01:13 VCR Off
1:19:00 elapsed on the VCR

 

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