Helo July 8
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Helo July 8 |
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| Photo flight #7 - large grid | ||||
| interval 21 s (pulse duration=0.1 s, timing= 20 s) | ||||
| Kt 19 sampling rate 1 Hz | ||||
| altitude 6000' entire flight box with a pass at 1000' by the ship afterwards. | ||||
| No low clouds | ||||
| winds? | ||||
| TCG, DKP, JRM present on flight | ||||
| GPS: | Lat. | Long. | Heading | |
| SHIP | 78o 05.0N | 166o 18.0W | ||
| A | 78o 05.0N | 165o 13.0W | 90 | |
| B | 78o 18.5N | 165o 13.0W | 0 | |
| C | 78o 18.5N | 167o 26.0W | 270 | |
| D | 77o 51.5N | 167o 26.0W | 180 | |
| E | 77o 51.5N | 166o 18.0W | 90 | |
| TIME | NOTES | NIKON | VIDEO | KT-19 |
| 9:59:16 | Takeoff | |||
| 9:59:30 | Switched On | |||
| 10:00:00 | Switched On | |||
| 10:05:18 | Start line to point A | |||
| 10:10:45 | Start turn at A | Poly 1 switched off for turn | ||
| 10:11:26 | End turn at A | Poly 1 switched back on | ||
| 10:18:00 | Start turn at B | Poly 1 switched off for turn | ||
| 10:18:39 | End turn at B | Poly 1 switched back on | ||
| 10:35:35 | Start turn at C | Poly 1 switched off for turn | ||
| 10:36:22 | End turn at C | Poly 1 switched back on | ||
| 10:41:21 | Poly 1 Full (Page 37 Line 3) | |||
| 10:42:39 | Poly 2 on line | |||
| 10:49:01 | Start turn at D | Poly 2 switched off for turn | ||
| 10:49:47 | End turn at D | Poly 2 switched back on | ||
| 10:54:40 | Start turn at E | Poly 2 switched off for turn | ||
| 10:55:37 | End turn at E | Poly 2 switched back on | ||
| 11:01:47 | At point F over the ship | Poly 2 switched off for maneuvering | ||
| 11:08:38 | Beginning of Lead on NS pass at 1000' | Poly 2 switched on | ||
| 11:10:42 | Over Lead south of ship | |||
| 11:11:14 | End of Lead system | Poly 2 switched off (Pg 21 Line 2) | ||
| 11:15:00 | Switched Off | |||
| 11:16:05 | Landed on the deck | |||
| Helo Photo Mission | ||||
| 8-Jul-98 | ||||
| Blue skies, with high clouds | ||||
| Great visibility | ||||
| Altitude: 6000 ft | ||||
| Intervalometer set at 20 s | ||||
| Way points are: | ||||
| 09:59 Away from Des Gros | ||||
| 10:05:25 Begin leg Ship:A, ground speed 140 kts | ||||
| · More ponding evident, compared to last flight | ||||
| · More open water than before, but patchy. Some areas are broken up and some aren’t | ||||
| · Melt ponds running along ridges | ||||
| · 10:09:21 to turn at point A: Lots of open water areas. Some clear, some with large brash | ||||
| 10:10:45 Begin turn at point A | ||||
| 10:11:27 Begin leg A:B, ground speed 110 kts | ||||
| · Many more ponds than last time | ||||
| · What are the ponds with the fuzzy edges? | ||||
| · Still lots of open water areas | ||||
| · Most of ponds are a darker color, blue-gray | ||||
| · Light blue ponds are often near areas of 1st year ridging | ||||
| · 10:16:22: Over area that less distinct ponds (fuzzy edges), but a lot of coverage. Ponds also look oriented, sort of like rows of corn. First year? | ||||
| · 10:17:20: Over large multiyear floe, no open water. Turn at B made over this floe | ||||
| 10:18:00 Begin turn at point B, over multiyear floe with no open water | ||||
| 10:18:30 Begin leg B:C, ground speed 90 kts | ||||
| · MY has more ponds | ||||
| · Some FY still looks white. Other FY is sheets of ponds, with 70-80% coverage. | ||||
| · Open water is scatter, with no obvious pattern. | ||||
| · 10.4 nm: Another area without as many melt ponds | ||||
| · While there are melt ponds along ridges, beyond this line of ponds there is often an area where there are no ponds. (Sketch in fieldbook) | ||||
| · 10:20:11: Far amount of open water, again. | ||||
| · Some ponds are distinct (MY?), and others are less so (FY?) | ||||
| · Not a significant number of black ponds | ||||
| · Ridges are very bright, as are areas adjacent to them that have no meltponds (snow?) | ||||
| · Open water randomly dispersed. No significant lead patterns. Occasional large floes. | ||||
| · 10:26:37: Cracks are perpendicular to leg direction | ||||
| · 10:27:00: Old lead? Long feature where there are no meltponds in the center, while there are meltponds running along both sides, near ridges. (Sketch in fieldbook) | ||||
| · 10:29 to 10:30:30: Over area with a significantly less meltponds (May be in same area as 10.4 nm noted above) | ||||
| · Areas with less distinct meltponds (FY?) appear gray between the meltponds. | ||||
| 10:35:35 Begin turn at point C, over broken area | ||||
| 10:36:22 Begin leg C:D, ground speed 120 kts | ||||
| · What kind of ice are the blue ponds in? | ||||
| · Still a fair amount of pond-free ice | ||||
| · 10:40:30: D.G. at 9 o’clock | ||||
| · 10:40:38: Very broken up | ||||
| · Not all FY ice has begun to show meltponds | ||||
| · 14.3 nm, 10:42:28: Dirty floe | ||||
| · On patches of FY ice (?) see meltponds 1st along the ridges, before melt on the flat areas. Perhaps due to the depression of ice near ridges. | ||||
| · 10:44:58 to 10:47:05: Over larger floe, area without cracks | ||||
| · 10:47:05 to 10:47:34: Broken area | ||||
| · 10:47:34 to turn at point D: Area without cracks | ||||
| 10:49:00 Begin turn at point D, over area without cracks | ||||
| 10:49:45 Begin leg D:E, ground speed 145 kts | ||||
| · 10:50: Back over broken ice | ||||
| · More broken up on this leg, some patterns to leads | ||||
| · Breaks in ice at 60 deg clockwise to leg | ||||
| · No big areas without cracks | ||||
| 10:54:40 Begin turn at point E, over broken area | ||||
| 10:55:38 Begin leg E:ship, ground speed 110 kts | ||||
| · Less broken as approaching ship (this is good news!) | ||||
| 11:02:04 End of run | ||||
| · Intervalometer off at 11:02:06 | ||||
| - Pass camp at 1000 ft, N to S, ground speed 85 kts | ||||
| · » 11:06, turned intervalometer back on, at 2 s intervals | ||||
| · 11:07:15 Dirty ice | ||||
| · Colors of ponds look at lot more variable at this elevation. At 6000 ft, there seemed to be two general colors: light blue and blue/gray | ||||
| · 11:11:07: Over open water, turn back towards camp | ||||
| - Pass over camp at 500 ft | ||||
| · Intervalometer off at 11:11:37, on again at 11:12:30. Off at 11:15:10 | ||||
| · 11:15: Photo of camp | ||||
| 11:15 Touch down on Des Gros | ||||
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