1 128 1623 L1F1.DAT SOL 1: 15 db gain on port and starboard; 12 db on subbottom. 0.25 s ping rate. {also running 15 cubic-inch water gun: TAPE 1: 0.5 s sweep; 5 s fire 80 Hz to 2 kHz kHz filters; CHANNEL 1: 18db pre-filter gain; 12db post-filter gain. CHANNEL 2: 6db pre- and post-filter gain} 1 128 1653 L1F1.DAT ISIS ERROR. REBOOT SYSTEM. 1 128 1659 L1F2.DAT Start new file. BACK ON LINE. Featureless "hard" bottom. No targets to tune the sidescan. 1 128 1715 L1F2.DAT ISIS DIED AGAIN. Having problem with the 8 mm tapes??? 1 128 1719 L1F3.DAT Start new file....ABORT 1 128 1723 L1F3.DAT Could not wirte to exabite. ISIS shut down????? ABORT 1 128 1820 L1F3.DAT Replace 8 mm drive. Start of File. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 1 128 1840 L1F3.DAT Appears that we may be seeing linear rippled depressions. Cannot resolve ripples, but higher backscatter areas located in "swale." 1 128 1903 L1F3.DAT End of Line 1. 2 128 1913 L2F1.DAT Start Line 2 {This is a rerun of the first line....the first line was a typical test line} {Stopped and restarted XSEISMICS. Used same filter and gain settings as Line 1in the beginning.....altered them to: CHANNEL 1: 18db pre-filter; 24db postfilter. CHANNEL 2: 6db pre; and 18db post} RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 2 128 1950 L2F1.DAT Possible fault with surface expression? 2 128 2025 L2F1.DAT Seeing ripples sidescan in mottled high-backscatter area (these will NOT show up on the processed file....crests trend NE-SW) 2 128 2040 L2F2.DAT End of File/Start of File RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 2 128 2048 L2F2.DAT Again ripples clearly in high-backscatter depression oriented NE-SW) 2 128 2055 L2F2.DAT Start of about 4 minutes of low-amplitude assymetric rippled depressions....looks like a series of sand waves on the sidescan (low backscatter areas are the topo-highs) 2 128 2150 L2F2.DAT Starting to see clear penetration on the Chirp subbottom. Water gun profile showing a deep reflector @ approx 0.165 sec. and a clear channel in the Quaternary section. 2 128 2230 L2F2.DAT End of Line 2; End of File. 3 128 2240 L3F1.DAT Start of Line 3; Start File 3 128 2250 L3F1.DAT Chirp subbottom reflector looks like it is showing signs of gas-charged sediment!...Still seeing this @ 2331 Z. 3 128 2329 L3F1.DAT ISIS Froze. Lost 10 min of sidescan data. 3 128 2339 L3F2.AT New Tape, Start new File. 3 128 2350 L3F2.DAT See a well defined "channel" on water gun profile. Chirp subbottom is looking wild. 3 129 4 L3F2.DAT Continue to see thermociline noise in low backscatter areas. Now run into a relatively higher bs linear trend with barely visable negative relief....on the order of ~1 meter. 3 129 20 L3F2.DAT Series of high-bs stringers that are clearly depressions cutting across a low-bs subtle topographic high. 3 129 36 L3F2.DAT Acoustic pull down (gas?) is not as pevalent in the Chirp subbottom any longer. Seeing data drop-outs approximately every 5 min. 3 129 55 L3F2.DAT Numerous high-bs targets (principally on port channel). Looks like "dumping," but not clear. 3 129 106 L3F3.DAT File Change. 3 129 142 L3F3.DAT End of Line 3/End File. Seeing real strong reflector dipping to east on water-gun profile. 4 129 148 L4F1.DAT Start Line 4/Start File {Sidescan record seems much clearer...the previous line seemed to have noise throughout it, therefore the contrast was muted. 4 129 309 L4F2.DAT File Change. 4 129 315 L4F2.DAT Looks like low amplitude (~1m) sand waves.... again high-bs areas in topo lows. 4 129 330 L4F2.DAT Chirp subbottom showing little penetration...corresponds to generally high-bs area (at 033Z start to see areas of penetration, suggesting gas-charging (?)). 4 129 404 L4F3.DAT FILE CHANGE 4 129 410 L4F3.DAT small scale ripple pattern 4 129 423 L4F3.DAT SMALL SCALE RIPPLE FIELD assoc. with about 5m. penetration on chirp subbottom 4 129 435 L4F3.DAT ripple field ? 4 129 445 L4F3.DAT A few possible Dumpsites on port channel. (ñ 5 min of 0445Z). 4 129 449 L4F3.DAT End of Line 4/End of file. 5 129 501 L5F1.DAT start o line 5 5 129 515 L5F1.DAT into localized dump areas and pseudo ripple world 5 129 545 L5F2.DAT FILE CHANGE 5 129 555 L5F2.DAT looks like a cable on da bottom 5 129 608 L5F2.DAT high backscatter stringer features trending across entire swath 5 129 625 L5F2.DAT lost signal on one of the hydrophones-batteries? 5 129 626 L5F3.DAT new file and back on line with benthos phone 5 129 640 L5F3.DAT mottled- high bs areas in slight topo depressions 5 129 650 L5F3.DAT patches of high bs areas 5 129 709 L5F4.DAT FILE CHANGE 5 129 725 L5F4.DAT HIGH BS areas through entire swath within slight depression 5 129 735 L5F4.DAT ridge/swale type features within a 4-5m depression-you figure it out-drops off in subbottom record as well. 5 129 745 L5F4.DAT those linear high bs stringer features have returned 5 129 751 L5F5.DAT file change 5 129 808 L5F5.DAT MR. LIGHTS-ON IRWIN IS UP AND HAVING A CUP O' MUD 5 129 823 L5F5.DAT EOL 5--end o' tape #3 6 129 834 L6F1.DAT SOL 6--start tape #4 6 129 843 L6F1.DAT high bs stringers in slight depression 6 129 907 L6F1.DAT ditto and bit o' structure in airgun records--relic channel and pinch out features 6 129 918 L6F2.DAT FILE CHANGE 6 129 926 L6F2.DAT TRANSITION TO HIGH BS --no apparent subbottom expression of this feature except for a few m. rise in bottom topo. 6 129 1000 L6F3.DAT new file 6 129 1011 L6F3.DAT more of those large scale high bs stringers over the entire swath area seem to b associated with subtle depressions in the topography. 6 129 1045 L6F3.DAT attempted file change and a minor crash--how unusual! FILES F4 - F5 ARE TRASHED. 6 129 1058 L6F6.DAT SYSTEM BACK UP AND NEW FILE 6 129 1135 L6F6.DAT LITTLE PILES OF HIGH BS AND MORE LINEAR PATTERNS to follow till eol. 6 129 1205 L6F6.DAT EOL 6 7 129 1213 L7F1.DAT SOL 7 7 129 1231 L7F2.DAT End of File/Start File. Attempting to reset gains, having problems. Started screwing with the power settings (not Good). 7 129 1232 L7F2.DAT Stop ISIS. 7 129 1234 L7F3.DAT Restart ISIS; reset gainst to original settings (15 db port and starboard.....9 db Subbottom-----Power on subbottom set at 6 db.) 7 129 1250 L7F3.DAT GAIN PROBLEMS W. ISIS---RAISE/LOWER TO GET BACK TO 15db and 9db for subbottom. 7 129 1308 L7F3.DAT Seeing trawl marks...real subtle. 7 129 1319 L7F4.DAT Change File. Seeing great example of acoustic blanking on Chirp subbottom again. NAVIGATION IS NOT UPDATING. 7 129 1324 L7F4.DAT NAVIGTION IS LOCKED UP. HAVE HAD NO NAVIGATION SINCE APPROXIMATELY 1315 Z. {Pilot Error.....turned off the nav system when changing the fathometer paper-record. The imagery in this area was relatively low-bs with subtle trawl marks. 7 129 1408 L7F4.DAT Target on starboard channel (shown as wreak on chart) 7 129 1413 L7F4.DAT Beginning to see sand waves trending across entire image...with about 1.5 m relief. 7 129 1442 L7F5.DAT start new file - gain problems-processing seems to show that we are amplifying the noise with the 15 db gain settings. Therefore reset gains to 6 db on sidescan channels. 7 129 1458 L7F5.DAT XSEISMIC acquisition system shutdown.....Disk Full. Rebooting. 7 129 1507 L7F5.DAT XSEISMICS back on line. START Tape 2 7 129 1513 L7F5.DAT Continue to see low-bs stringers in topo lows. 7 129 1535 L7F5.DAT EOL 7 8 129 1548 L8F1.DAT SOL 8 8 129 1632 L8F1.DAT Clearly seeing major unconformity (coastal plain reflector(?)) on Chirp subbottom profile. 8 129 1644 L8F1.DAT Hit high-bs area and lost subbottom penetration on the Chirp. 8 129 1645 L8F2.DAT Change files. 8 129 1650 L8F2.DAT Seeing clear penetration on Chirp subbottom again. 8 129 1717 L8F2.DAT Here seeing the same blanking on the Chirp subbottom that we saw previously, however, not that the gains have been reduced, the blanking seems to be assocated with a minor change in bs-intensity; i.e., the blanking could be associated with lack of penetration through a surficial sandier sediment cover. 8 129 1724 L8F2.DAT Turn off the Water-Gun for Compressor repair. NOTE: Seeing the unconformity coming to about 2-m from the surface on the Chirp subbotom. 8 129 1738 L8F3.DAT Change File. Saw some Thermocline noise last 10 min. 8 129 1740 L8F3.DAT Target on Port channel. 8 129 1743 L8F3.DAT Target on Port channel. 8 129 1744 L8F3.DAT Water-Gun Back on Line. Start X-Seismics. 8 129 1747 L8F3.DAT Targets on starboard side....actually starting to see individual targets on both channels. {{{{{BILL NOTED DURING CRUISE THAT THE FISH COMPASS IS APPROXIMATELY 32ø OFF}}}} {{{{We will check it on next line}}}. 8 129 1810 L8F3.DAT Seeing cables(?) on both channel. 8 129 1817 L8F3.DAT End Paper roll #1 8 129 1827 L8F3.DAT Start Paper Roll # 2. 8 129 1923 L8F3.DAT Wreck on starboard side. Big one. 8 129 1927 L8F3.DAT End of Line. Change Tape. Next two lines will be cross-lines (line 9 will run through the dumpsites to set the processing parameters) 9 129 1942 L9F4.DAT Start Line/Start new Tape # 9/ Start file [PROBLEMS WITH GETTING ISIS GOING....AGAIN:::FILES F1 THROUGH F3 ARE BOGUS] 9 129 2015 L9F4.DAT Going over localized topo high with "obst" listed on chart. Still not seeing clear areas of high backscatter. Chirp and water-gun subbottom suggests it is a hard bottom (no penetration) but the imagery shows isolated high-bs "spots" (no clear rock ledges or outcrops). 9 129 2029 L9F4.DAT This reallylooks like hard outcrop with boulders. Finally, looking like sidescan data. 9 129 2032 L9F4.DAT Getting into to the dredge-spoil dumpsite & starting to see what appears to be dumps! 9 129 2051 L9F4.DAT End of Line/Pull Tape for processing/End Tape 9 10 129 2053 L10F1.DAT Start line 10/Start Tape #6 10 129 2113 L10F1.DAT End of file. Looks like we snagged something. Pulled fish to surface to check. 10 129 2116 L10F2.DAT Lower Fish. Start new File. 10 129 2132 L10F2.DAT Seeing great penetration on the Water-gun profiles but not much in the Chirp record....plenty of sewage dumps! 10 129 2137 L10F2.DAT Haul in fish a bit {At same tape mark it was at for most of the cruise} 10 129 2214 L10F3.DAT File Change. Imagery is low-backscatter. 10 129 2250 L10F3.DAT Played with fish altitude...ended up bringing it in a few meters. 10 129 2316 L10F4.DAT File Change. Reset bottom-track to sidescan channel. 10 129 2325 L10F4.DAT Linear Rippled Depressions transecting the imagery. This heading seems to show the ripples better than what we saw previously. 10 129 2329 L10F4.DAT ISIS froze. System off. Watchstanders asleep. 10 130 1 L10F5.DAT Restart ISIS/Start new field. 10 130 20 L10F5.DAT End Line 10. 11 130 25 L11F1.DAT Start Line 11. First "fill-in" line. 11 130 126 L11F2.DAT Change File (seeing high-bs depressions; thinking that the reason we are not seeing ripples is the orientation of the line----the tie-line showed them well (line 10) 11 130 157 L11F2.DAT Haul in fish. 11 130 206 L11F2.DAT See thermocline. Pay out a few meters. 11 130 217 L11F2.DAT Starting to see a lot of noise, especially in the far range. Fish is approx 10 m off bottom (likely prop noise or surface chop which is beginning to pick up) 11 130 240 L11F3.DAT Fix Side-mount. Raise fish, shut-down fathometer, Change File. 11 130 248 L11F3.DAT Bring in Fish shallow tow. 11 130 250 L11F3.DAT Fathometer back on. Lower Fish. 11 130 252 L11F3.DAT Back up to speed, towing fish @ approx 11m off bottom. picking up a lot of prop noise on the starboard channel that was not noticeable before the repair. 11 130 257 L11F3.DAT Reset the Starboard gain (correcting an "autogain" problem). Chirp subbottom showing some discrete channels. Great Water-gun records. 11 130 310 L11F3.DAT Thermocline noise comes in again. 11 130 319 L11F3.DAT Blanking on Chirp profile comes and goes. It really looks more and more like gas-charged sediment. 11 130 335 L11F4.DAT Change File. 11 130 419 L11F4.DAT EOL 11 12 130 426 L12F1.DAT SOL 12 AND THE USUAL GAIN CHANGE AND FILE CHANGE PROBLEMS 12 130 443 L12F6.DAT FINALLY IT TOOK! Missing files are wasted while we tried to boot up the system. 12 130 530 L12F7.DAT FILE CHANGE MANIA and leave printer off for awhile---this is only a test! 12 130 538 L12F7.DAT some structure in subbottom record from isis and acoustically opaque areas(gas?) 12 130 551 L12F7.DAT patchy areas of high bs across record and the printer is back 12 130 605 L12F8.DAT A FILE CHANGE THAT WAS NOT PARTICULARLY TRAUMATIC! 12 130 630 L12F8.DAT COARSER PATCHES,NO PARTICULAR SYMMETRY,BIT OF THERMOCLINE AS WELL 12 130 650 L12F9.DAT HAPPY FILE CHANGE-NO HANGEUPS! 12 130 700 L12F9.DAT COARSER STRINGER IN SLIGHT TOPO DEPRESSION AND AN ANCHOR CHAIN OR CABLE 12 130 720 L12F9.DAT SHIP LOST POWER-FUEL FILTER CLOGGED ON GENERATOR 12 130 808 L12F9.DAT POWER IS BACK-FIRING UP DA LAB-WILL RESTART LN12 APPROX .5NMI FROM BEFORE LOSS OF POWER-APPROX 73D32M LONGITUDE 12 130 944 L12F10.DAT RESTART LN 12 AND A NEW FILE AND TAPE 12 130 959 L12F10.DAT COARSE PATCHES O' SED IN TOPO LOWS 12 130 1003 L12F10.DAT EOL 12 13 130 1009 L13F1.DAT SOL13 AND NEW FILE 13 130 1025 L13F1.DAT HIGH BS ELONGATED BANDS ACROSS ENTIRE SWATH -IN TOPO LOWS 13 130 1051 L13F2.DAT DITTO AND NEW FILE 13 130 1120 L13F2.DAT HIGH BS ACROSS THE BOARD 13 130 1136 L13F3.DAT NEW FILE 13 130 1236 L13F4.DAT NEW FILE 13 130 1303 L13F5.DAT NEW FILE 13 130 1330 L13F5.DAT Wreck(?). 13 130 1344 L13F5.DAT EOL 13. We are running into a lot of wave noise on the records when running in water depth < 20 m. 14 130 1407 L14F1.DAT Start Line 14. 14 130 1424 L14F1.DAT Lower Fish to previous depth (double tape mark). 14 130 1436 L14F1.DAT End File. Data gap, avoiding trawler. Try to pick up line latter. 14 130 1446 L14F2.DAT BACK ON LINE-3db port/stbd gains-9db subbottom 14 130 1530 L14F3.DAT file change 14 130 1613 L14F4.DAT File Change. Trawl marks. Seeing a lot of noise as the weather deteriorates. Weather forcast is not in our favor. Winds blowing approx 15 kts now. Due to increase tonight and die down tomorrow. However, wave height is about 2-3' not and scheduled to be 10-12 by tonight. 14 130 1705 L14F5.DAT Change File {Problems with gain. Not set until 1712Z. New Subbottom gain set at 18 d). 14 130 1730 L14F5.DAT Wreck on port channel. 14 130 1845 L14F5.DAT End Line. Pull Gear and hide from the weather. 15 131 1627 L15F1.DAT Weather improving. Start Line 15/Start File. Seeing pitch noise but reasonable data. Getting a lot of prop noise due to swell/shallow water. Chirp subbottom is poor due to swell noise. NOTE: Missed the first nautical mile on this line. 15 131 1726 L15.F1.DAT Barely discerable linear high-bs stripes across the entire record {trawl marks??}. 15 131 1749 L15F2.DAT File change. 15 131 1829 L15F2.DAT Good image of a wreck on port channel. 15 131 1831 L15F3.DAT Changed files on ISIS, 10000 records reached 15 131 1855 L15F3.DAT Wire up. 15 131 1919 L15F4.DAT Change file. 15 131 1950 L15F4.DAT Auto Gain Change. 15 131 1952 L15F4.DAT Change course because of vessel traffic. 15 131 2002 L15F4.DAT Ship's wake showing up diagonally across the sonar record. 15 131 2016 L15F4.DAT End of line 15. 16 131 2023 L16F1.DAT Start of line 16, course 270. 16 131 2052 L16F1.DAT The Chirp Subbottom is getting better (this ship heading seems to retard the heave). See the unconfomity rather well. 16 131 2151 L16F2.DAT File change. 16 131 2229 L16F2.DAT Trawl marks. Also a real gassy area in the Chirp subbottom. 16 131 2240 L16F3.DAT Deep penetration on the Chirp - gas? 16 131 2245 L16F3.DAT Laminated reflections in chirp 16 131 2302 L6F3.DAT Fish in about 2 meters. 16 131 2319 L16F3.DAT Fish in again 2 meters. 16 131 2327 L16F3.DAT Passed really close to a big container ship. Echo on port channel....also will see the wake. 16 131 2330 L16F3.DAT EOL 16...ISIS froze up. Rebooted sucessfully and installed a new tape. 17 131 2335 L17F1.DAT Start of line 17. ISIS running OK. 17 132 25 L17F2.DAT Back in the gassy area 17 132 103 L17F4.DAT Changed files to file 3, but ISIS screwed up. Changed again to file 4, and ISIS is OK. Printer was on during file change. Leave printer off until end of line....need to reboot ISIS in order to try and get printer on. 17 132 146 L17F5.DAT File Change. 17 132 209 L17F5.DAT Having problem tracking bottom using the subbottom. Switched to Channel 1. 17 132 242 L17F6.DAT File change. 17 132 322 L17F6.DAT End of Line 17/End file. Attempt to get printer running again during turn by rebooting ISIS. Start new tape 11. 18 132 334 L18F1.DAT Start new Tape. Start Line 18. 18 132 417 L18F2.DAT n ew fileage-high patchy bs areas on slight topo high 18 132 506 L18F3.DAT sof 18 132 545 L18F4.DAT sof 18 132 621 L18F4.DAT ambrose light off port side-patchy,high bs stuff,and fish up a tad and small scale ripples 18 132 632 L18F5.DAT sof 18 132 646 L18F5.DAT manuvering to avoid vessel or crash and burn 18 132 654 L18F5.DAT eol-too much ship traffic-bring fish up some moa-more manuvering to avoid things that go bump in the night 19 132 723 L19F1.DAT sol 19 19 132 747 L19F1.DAT altering course-ambrose light passing off our starboard side-fish up a bit 19 132 757 L19F1.DAT back on course 19 132 807 L19F2.DAT SOF 19 132 852 L19F3.DAT SOF 19 132 937 L19F4.DA SOF 19 132 950 L19F4.DA PATCHY AREAS OF HIGH BS ACROSS ENTIRE SWATH 19 132 1022 L19F5. SOF 19 132 1101 L19F5. EOL 19 20 132 1106 L20F1.DAT SOL 20 20 132 1151 L20F2.DAT SOF and the beginning of those high bs patches across the swath 20 132 1235 L20F3.DAT sof 20 132 1240 L20F3.DAT paper change 20 132 1246 L20F3.DAT on line 20 132 1320 L20F4.DAT SOF 20 132 1406 L20F4.DAT PASSING AMBROSE LIGHT TO STBD. 20 132 1432 L20F4.DAT Passing a big container vessel. will see shadow and wake on port channel. 20 132 1440 L20F4.DAT EOL 20 21 132 1448 L21F1.DAT SOL 21 AND TAPE 12 RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 21 132 1524 L21F1.DAT TARGET-WRECK? 21 132 1537 L21F2.DAT START NEW FILE. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 21 132 1618 L21F2.DAT Seeing what looks like a boat wake.....but NO BOAT?? Could be a pipeline??? 21 132 1628 L21F3.DAT Start of File. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 21 132 1700 L21F3.DAT Linear Rippled Depression (the ripples show up). 21 132 1711 L21F4.DAT Start of File RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 21 132 1722 L21F4.DAT Continue to see evidence of ripples in the high-bs areas. 21 132 1753 L21F5.DAT Change file. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 21 132 1801 L21F5.DAT Shut down system. Ship Generator Problems. 21 132 1901 L21F6.DAT Back on Line. Start new File. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 21 132 1929 L21F6.DAT Possible wreck on stbd side 21 132 1944 L21F6.DAT End of Line 13. 22 132 1949 L22F1.DAT Start Line14 RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 22 132 2033 L22F2.DAT SOF RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 22 132 2057 L22F2.DAT Negative relief associated with the high-bs areas. 22 132 2115 L22F2.DAT Good image of ripples in a minor topo-low. 22 132 2120 L22F2.DAT Starting to see some good subbottom penetration on the Chirp.....appears to be related to the texture of the surface sediment (penetrates best in areas of low-bs). 22 132 2129 L22F3.DAT File Change. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 22 132 2218 L22F4.DAT File Change. Wreck on starboard channel. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 22 132 2231 L22F4.DAT Possible wreck on starboard channel. 22 132 2236 L22F4.DAT Faint trawl-marks (?). 22 132 2254 L22F4.DAT Lower fish 22 132 2311 L22F4.DAT Good Chirp subbottom penetration. 23 132 2329 L23F1.DAT Start Line 23. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 23 132 2350 L23F1.DAT Fish Out. 23 133 12 L23F2.DAT Change File. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 23 133 44 L23F1.DAT Still excellent subbottom penetration. XSEISMICS is having problems. Continues to stop and start files. 23 133 57 L23F3.DAT Change File. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 23 133 113 L23F3.DAT Seeing gas-charged area again. 23 133 141 L23F4.DAT Change File. May be named "L24F4.DAT" on the tape. Will have to check. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 23 133 224 L23F5.DAT Change file. This file is incorrectly named "L24F5.DAT" on the tape. Will rename (L23F5.DAT) when transferred to Silicon Graphics Workstation. RAW DATA TAPE DAMAGED; FILE LOST (7/7/99) 23 133 301 L23F5.DAT End of Line 23 24 133 307 L24F1.DAT Start Line 24. New Tape. 24 133 337 L24F1.DAT Seeing large ripples in high-bs area on port channel. At 0335Z it looks like the Coastal Plain reflector outcrops here. 24 133 349 L24F2.DAT SOF 24 133 431 L24F3.DAT SOF 24 133 500 L24F3.DAT WIRE OUT 24 133 514 L24F4.DAT SOF 24 133 536 L24F4.DAT WIRE OUT 24 133 558 L24F5.DAT SOF 24 133 620 L24F5.DAT PATCHES OF HIGH BS W. SOME PENETRATION ON CHIRP 24 133 640 L24F6.DAT SOF 24 133 705 L24F6.DAT WIRE IN 24 133 713 L24F6.DAT EOL 24-MANUVERING TO AVOID TRAFFIC AND LOBSTER POTS-LOOKS LIKE 0701 IS A BETTER EOL FOR PLOTTING PURPOSES! 25 133 733 L25F1.DAT SOL 25 25 133 741 L25F1.DAT MANUVERING TO AVOID TRAFFIC 25 133 748 L25F1.DAT BACK ON LINE 25 133 800 L25F1.DAT PATCHY AREAS OF HIGH BS IN TOPO LOWS 25 133 821 L25F2.DAT SOF 25 133 826 L25F2.DAT HAVING PROBLEMS STARTING UP ISIS, SAME STUFF AS BEFORE 25 133 904 L25F3.DAT SOF 25 133 947 L25F4.DAT SOF 25 133 1020 L25F4.DAT ALTERNATING PATCHES OF HIGH BS IN TOPO LOWS114 1 25 133 1030 L25F5.DAT SOF 25 133 1112 L25F1.DAT EOL 25. END OF TAPE 26 133 1118 L26F1.DAT SOL 26 26 133 1202 L26F2.DAT SOF 26 133 1245 L26F3.DAT SOF 26 133 1331 L26F4.DAT SOF 26 133 1415 L26F5.DAT SOF 26 133 1425 L26F5.DAT PATCHY HIGH BS AREASON SLIGHT TOPO HIGH 26 133 1501 L26F5.DAT EOL 26 27 133 1509 L27F1.DAT SOL 27 27 133 1550 L27F1.DAT LOWER FISH. 27 133 1603 L27F2.DAT SOF 27 133 1640 L27F2.DAT WIRE IN ~ 1 METER 27 133 1646 L27F3.DAT SOF 27 133 1652 L27F3.DAT SMALL TARGET ON STARBOARD CHANNEL. 27 133 1704 L27F3.DAT WIRE IN 27 133 1712 L27F3.DAT WIRE IN. 27 133 1729 L27F4.DAT SOF 27 133 1735 L27F4.DAT RIPPLES IN HIGH-BS DEPRESSIONS (? LITTLE RELIEF IF ANY). 27 133 1811 L27F5.DAT FILE CHANGE. 27 133 1845 L27F5.DAT End Line 27. 28 133 1852 L28F1.DAT START LINE 28 28 133 1935 L28F2.DAT Change file. 28 133 2019 L28F3.DAT File Change. 28 133 2024 L28F2.DAT Good example of high-bs linear furrows (negative relief). HOWEVER, THE MORE YOU LOOK AT IT THE MORE EXCEPTIONS THAT YOU SEE. Going to have to look at the relationship between between the larger linear ridges and the high-bs areas. 28 133 2106 L28F3.DAT Wreck on starboard channel. 23 133 2140 L23F3.DAT Raise fish. 28 133 2147 L28F3.DAT Wire in. 28 133 2211 L28F3.DAT End Line 28. 29 133 2217 L29F1.DAT Start Line 29. Start new Tape. 29 133 2300 L29F1.DAT Paid out wire, fish alt = 17.5 meters 29 133 2329 L29F1.DAT Screen Froze. ISIS error. Pull Tape. 29 133 2333 L29F2.DAT Restart ISIS. New Tape. New File. 29 133 2353 L29F2.DAT Wreck on starboard side. 29 134 45 L29F2.DAT WIRE IN. 29 134 105 L29F2.DAT Great example of linear high-bs depression....some ripples. 29 134 116 L29F2.DAT Crossing the fault...seeing a reflector coming up on the Chirp subbottom. 29 134 209 L29F2.DAT End Line 17 30 134 224 L30F1.DAT Start Line 30. (Delay in starting line related to ship engine problem) Going to put entire line on one file. 30 134 306 L30F1.DAT Sea Floor offset. Again, appears a subsurface reflector is outcropping. Also a wild set of refectors on the water-gun profile approaching vertical!!!! 30 134 312 L30F1.DAT Possible wrech on starboard channel. 30 134 349 L30F1.DAT End of Roll 3 (hard copy of SIS-1000 data). 30 134 440 L30F1.DAT GOOD PENETRATION ON ISIS 3.5KHZ 30 134 506 L30F1.DAT WIRE OUT ~ 2 METERS 30 134 515 L30F1.DAT WIRE OUT ~ 2 METERS 30 134 529 L30F1.DAT PATCHY HIGH BS AREAS 30 134 540 L30F1.DAT WIRE IN 30 134 549 L30FI.DAT MORE WIRE IN 30 134 558 L30F1.DAT WIRE IN AND A WRECK 30 134 605 L30F1.DAT BATHY HIGH-BEDROCK? 30 134 616 L30F1.DAT EOL 30 31 134 629 L3OFI.DAT SOL 31 - NAMED FILE WRONG!! SHOULD HAVE BEEN L31F1.DAT - RESTART AT 0631 31 134 631 L31F1.DAT FILE NAMED CORRECTILY!!! THIS TIME...SOL 31 31 134 652 L31F1.DAT WIRE OUT ~ 2 METERS 31 134 657 L31F1.DAT ISIS AUTO GAIN CHANGE CURSE IS BACK AND WIRE OUT 31 134 701 L31F1.DAT WIRE OUT ~ 2 METERS 31 134 711 L31F1.DAT SNAGGED LOBSTER BOUY - FISH UP TO CUT LINE 31 134 715 L31F1.DAT BACK ON LINE 31 134 716 L31F1.DAT PORT GAIN STILL BUGGERED UP (SEE ENTRY IN LOG BOOK.) RESET PORT GAIN, SHOULD BE O.K. NOW 31 134 722 L31F1.DAT WIRE OUT ~ 2 METERS 31 134 743 L31F1.DAT WIRE IN ~ 2 METERS 31 134 805 L31F1.DAT WIRE IN ~3 M 31 134 907 L31F1.DAT WIRE IN ~4M 31 134 915 L31F1.DAT LINEAR AREAS OF HIGH BS 31 134 1031 L31F1.DAT EOL 31 32 134 1035 L32F1.DAT SOL 32. Start Tape 18 32 134 1359 L32F1.DAT RAISE FISH A BIT 32 134 1417 L32F1.DAT EOL 32 33 134 1423 L33F1.DAT SOL 33 33 134 1444 L33F1.DAT FISH DOWN 33 134 1505 L33F1.DAT FISH OUT 33 134 1515 L33F1.DAT CHANNEL- ON WATERGUN RECORDS 33 134 1552 L33F1.DAT WIRE IN. 33 134 1634 L33F1.DAT ISIS AUTOMATIC GAIN CHANGE, WHAT A WONDERFUL FEATURE. RESET GAINS TO NORMAL. 33 134 1651 L33F1.DAT WIRE IN 33 134 1708 L33F1.DAT ISIS gets out of sync. Try to restart. 33 134 1710 L33F1.DAT END FILE. Attempt to get ISIS back up and running correctly. 33 134 1711 L33F2.DAT ISIS back on. Start New File. STILL FOULED UP IN THE BEGINNING. 33 134 1733 L33F2.DAT ISIS automatically changed the gains once again. 34 134 1737 L34F2.DAT Lobster Pots. Problem with overlap here. 33 134 1825 L33F2.DAT END OF LINE 33. 34 134 1833 L34F1.DAT START LINE 34. 34 134 2051 L34F1.DAT Passing along the northern bound of the sewage dumpsite, but seeing no evidence of dumping on the sidescan record??? 34 134 2057 L34F1.DAT WIRE OUT. (Saw drop-outs associated with pay-out). 34 134 2114 L34F2.DAT ISIS goes nuts again with gain problems. Start New File. 34 134 2217 L34F2.DAT End Line 34. 35 134 2222 L35F1.DAT Start Line 35. Try 0.5. sec rep. rate. 35 134 2243 L35F1.DAT Data deteriorates in the far range. Not getting much more useful info past the 180 m range-per side....Hoever the water depth here is only ~20 m. 35 134 2254 L35F2.DAT New File. Set ping-rate at 0.25 sec. The 0.5 wec rate was pushing it at water depth<30 m. 35 134 2329 L35F2.DAT ISIS Locks up. Probably filled the tape. 35 134 2338 L35F3.DAT New Tape. New File. 35 135 26 L35F3.DAT Been seeing drop-outs on sss; don't seem to be related to the winch this time. 35 135 57 L35F3.DAT Wire in. 35 135 121 L35F3.DAT ISIS Froze. Had to shut down system and reboot. System telemetry not operating. {Going to run some seismic cross-lines while trying to figure out what the problem is!!!! Fish on deck 36 135 243 Seis.36 Run Seismic Line 36 (North-South tie-line). 36 135 405 Seis.36 Slowing down to ~2 knts - putting SIS-1000 fish in the water for testing 36 135 421 L36F1.DAT Got the fish back running again. Continue the seismic line (LINE 36) while testing the fish. 36 135 434 L36F1.DAT wire in 36 135 458 L36F1.DAT EOL36 37 135 458 L37F1.DAT TRANSIT LINE TO LN 38 37 135 531 L37F1.DAT ISIS GLICH, RESTORE 37 135 532 L37F1.DAT WIRE IN 38 135 546 L38F1.DAT EOL37/SOL38 AND AVOIDING TRAFFIC 38 135 627 L38F1.DAT ISIS HICKUP RESTORE 38 135 743 L38F1.DAT EOL 38, PULL GEAR AND TRANSIT TO PORT. 39 136 33 L39F1.DAT START LINE 39. {FINISH THE END OF LINE 35}. 39 136 58 L39F1.DAT SEEING CLEAR OUTCROP ON SIDESCAN (CORRELATES WITH THE WATERGUN AND CHIRP SUBBOTTOM) 39 136 131 L39F1.DAT REAL GOOD INDICATION OF GAS IN WATERGUN PROFILE AT THE END OF THE LINE. 39 136 138 L39F1.DAT END LINE 39. 40 136 142 L40F1.DAT START LINE 40. 40 136 228 L40F1.DAT OUTCROP WITH SUBBOTTOM EVIDENCE 40 136 246 L40F2.DAT FILE CHANGE. Decided to start changing files from 10 to 15K pings. easier to handle the Chirp subbottom files. 40 136 343 L40F3.DAT FILE CHANGE. 40 136 416 L40F3.DAT WIRE OUT. 40 136 427 L40F3.DAT WIRE OUT. 40 136 442 L40F4.DAT FILE CHANGE. HAD AN ISIS PROBLEM ("restore" brought it back to life). 40 136 455 L40F4.DAT Wire In. 40 136 505 L40F4.DAT Wire In. 40 136 516 L40F4.DAT Seeing a lot of lobster pots in the dumping area (both in the sidescan and in the water) 40 136 527 L40F4.DAT END OF LINE. 41 136 532 L41F1.DAT START OF LINE 41 136 556 L41F1.DAT Wire Out. 41 136 559 L41F1.DAT Wire Out. 41 136 639 L41F1.DAT Wire in. 41 136 645 L41F2.DAT File Change. 41 136 651 L41F2.DAT Wire in. 41 136 730 L41F2.DAT Seeing some evidence of gas-charging on Chirp subbottom. 41 136 745 L41F3.DAT File Change. 41 136 839 L41F4.DAT File Change 41 136 903 L41F4.DAT End of Line 42 136 908 L42F1.DAT Start of Line 42 136 1010 L42F2.DAT File Change. 42 136 1108 L42F3.DAT File Change 42 136 1128 L42F3.DAT Wire Out. 42 136 1132 L42F3.DAT Wire Out. 42 136 1137 L42F3.DAT Wire Out 42 136 1208 L42F3.DAT wire in ~ 2 meters 42 136 1232 L42F3.DAT End Of Line, End of Tape. 43 136 1237 L43F1.DAT Start of Line, Start of Tape. 43 136 1311 L43F1.DAT Wire Out 43 136 1320 L43F1.DAT Wire Out 43 136 1322 L43F1.DAT new roll of epc paper 43 136 1338 L43F1.DAT wire out ~ 2 meters 43 136 1343 L43F2.DAT EOF/SOF 43 136 1349 L43F2.DAT wire in ~ 3 meters 43 136 1354 L43F2.DAT wire in 43 136 1422 L43F2.DAT Coming out of the Sewage Dumping area. The sewage is viscous when dumped, therefore the bs-signature would be expected to be minimal. 43 136 1451 L43F3.DAT File Change. 43 136 1454 L43F3.DAT wire in ~ 2 meters 43 136 1546 L43F4.DAT sof 43 136 1613 L43F4.DAT eol 44 136 1620 L44F1.DAT Start Line 44. 44 136 1712 L44F2.DAT File Change 44 136 1721 L44F2.DAT Wire in and adjust. Shallow tow (water depth<20 m). 44 136 1803 L44F2.DAT Wire out. 44 136 1805 L44F3.DAT File Change. {noticed at 1842 that the Chirp subbottom gain was not reset after the file change). 44 136 1821 L44F3.DAT Sea-floor scarp (~2m). Hard to see relation to watergun porfile, and no penetration from Chirp subbottom). 44 136 1837 L44F3.DAT Wind is picking up to about 20 kts. Seas are getting choppy and starting to see it in the sidescan data. 44 136 1841 L44F3.DAT Just realized that the Chirp subbottom channel gain was way off due to the last file change!!!! RESET. 44 136 1900 L44F4.DAT File Change. 44 136 1913 L44F4.DAT Line Out. Dodging lobster pots. 44 136 1929 L44F4.DAT Line out. Winds still strong (ca. 20kts) from south; chop increasing. 44 136 1936 L44F4.DAT Continue to avoid lobster pots. Seas increasing and data quality is decreasing. 44 136 1948 L44F4.DAT Lobster Pot Snag, Prepare to bring fish on deck. 44 136 1950 L44F5.DAT Pot let loose, continue line. Change File restart foward motion. 44 136 2004 L44F5.DAT Wire in ~5m 44 136 2015 L44F5.DAT WIRE IN 44 136 2024 L44F5.DAT WIRE IN 44 136 2044 L44F5.DAT END LINE 44. Bring Sidescan and sidemount onboard. Will run watergun profiles until the weather forces us to stop. 45 136 2108 TRANSIT Start Seismic Line 45 (Series of tie lines). 45 136 2307 TRANSIT End Line 45 46 136 2311 TRANSIT Start Line 46. 46 137 134 TRANSIT End Line 46 47 137 144 TRANSIT Start Line 47 (continue transit until weather cooperates). (This line turns to the north midway through..missed the time mark) {{Channel 1: pre-filter gain = 24db; post = 12 db. Channel 2: pre = 24 db; post 6 db} 47 137 456 TRANSIT END LINE 47. Incorrect waypoint. Transit back to line. 48 137 523 TRANSIT Start Line 48 48 137 546 TRANSIT Watergun stopped firing. Compressor problem. Not keeping up with firing rate. Attempt slower fire rate (additional probs). Compressor is not functioning properly. Transit to new sidescan line. 49 137 838 L49F1.DAT Restart sidescan survey; SOL 49 49 137 934 L49F2.DAT New File 49 137 1010 L49F2.DAT Brief power glitch/restart 49 137 1032 L49F3.DAT SOF 49 137 1059 L49F3.DAT WIRE OUT 49 137 1104 L43F3.DAT WIRE OUT 49 137 1130 L43F4.DAT SOF 49 137 1132 L43F4.DAT WIRE IN 49 137 1138 L43F4.DAT WIRE IN 49 137 1142 L43F4.DAT WIRE IN/OUT TO CHECK FOR POSSIBLE TANGLE-NOT FLYING STRAIGHT ACCORDING TO PORT/STARB. CHANNELS - FISH OK 49 137 1203 L43F4.DAT EOL49 50 137 1208 L50F1.DAT SOF50 50 137 1239 L50F1.DAT WIRE OUT 50 137 1248 L50F1.DAT WIRE OUT 50 137 1306 L50F2.DAT CHANGE FILE 50 137 1308 L50F2.DAT LOST DATA UNTIL 1313 -DELAY PROBLEMS WITH SUBBOTTOM CHANNEL INTERFERING WITH SS 50 137 1321 L50F2.DAT HOOKED POT 50 137 1403 L50F3.DAT FILE CHANGE 50 137 1446 L50F3.DAT WIRE IN 50 137 1503 L50F4.DAT FILE CHANGE 50 137 1523 L50F4.DAT END OF LINE 50 137 1537 L50F4.DAT WEATHER BAD, SANDY HOOK BOUND. End of Tape 23. {{{Stayed in Sandy Hook for 2 nights. Fixed Compressor. Left 139JD @1730Z}}} 51 139 1831 L51F1.DAT Start Line 51. Start Tape 24. [As we transit to the beginning of line 51, we see ripples in the high-bs areas; crests trending roughly north-south] 51 139 1835 L51F1.DAT TURNING OFFLINE TO AVOID BARGE OVER MUD DUMPSITE 51 139 1847 L51F1.DAT WIRE IN 51 139 1905 L51F1.DAT WIRE OUT 51 139 1910 L51F1.DAT Veered off line to dodge pots 51 139 1918 L51F1.DAT Continue to see lobster pots throughout the dump-site. Large (bolder) targets appear to be "natural" deposits. 51 139 1921 L51F1.DAT Wire out; continue to steer around lobster pots and other ships. 51 139 1930 L51F2.DAT CHANGE FILE 51 139 1944 L51F2.DAT Hooked a pot momenterily!!! 51 139 1951 L51F2.DAT Took In Wire. 51 139 1957 L51f2.dat Wire in 51 139 2020 l51f2.dat wire in 51 139 2030 l51f3.dat file change 51 139 2231 l51f3.dat EOL51 52 139 2236 L52F1.DAT SOL52 52 139 2329 L52F1.DAT SCREEN FREEZE - REBOOTED WITH NEW FILE 52 139 2343 L52F2.DAT START OF FILE2 52 140 23 L52F2.DAT EOL 53 140 26 L53F1.DAT SOL53-LINE ABBREVIATED TO AVOID LOBSTER POTS DURING DARKNESS 53 140 237 L53F1.DAT EOL53 54 140 243 L53F1.DAT SOL54 - NAMED FILE WRONG AGAIN!!! (JANE) SHOULD BE L54F1.DAT 54 140 247 L53F1.DAT ISIS GAIN TROUBLE - ISIS STOPPED (Note: The mislabled file is only a few minutes long. 54 140 249 L54F2.DAT ISIS RE-STARTED 54 140 324 L54F2.DAT Seeing the angular unconformity close to the surface on the Watergun record. No penetration on the Chirp subbottom. 54 140 331 L54F2.DAT The high-bs area is not related to a depression here.....may actually be a bathy high. 54 140 423 L54F2.DAT End of Line 54. 55 140 428 L55F1.DAT SOL 55. Small Isis glitch at the beginning of the record. 55 140 533 L55F1.DAT See narrow linear rippled depressions (can see the ripples). This later becomes a relatively high-bs area that appears to correlate to the coastal plain reflector coming close to the surface. 55 140 603 L55F1.DAT Starting to see thermocline problems at the eastern end of the study area. 55 140 624 L55F1.DAT End Line 55. 56 140 630 L56F1.DAT Start of Line 56 56 140 634 L56F1.DAT Seeing a small channel in the coastal plain reflector (on both the Fhirp and watergun). Continue to see subbottom penetration on the Chirp for the first time in a while. 56 140 715 L56F1.DAT Again saw clear evidence of outcropping coastal plain strata on sidescan and watergun....no clear penetration on Chirp. 56 140 739 L56F1.DAT Slowing speed to 4 kts. to delay reaching area of lobster pots until daybreak. 56 140 818 L56F1.DAT evidence of gas charging (?) in chirp and water gun record 56 140 938 L56F1.DAT wire out entering shelf valley 56 140 945 L56F1.DAT wire out 56 140 956 L56F1.DAT wire in rising to dredge site 56 140 1015 L56F1.DAT wire in 56 140 1020 L56F1.DAT wire in 56 140 1028 L56F1.DAT wire in/out to avoid mound on top of dumpsite 56 140 1036 L56F1.DAT wire out 56 140 1047 L56F1.DAT EOL56 57 140 1052 L57F1.DAT SOL57 57 140 1103 L57F1.DAT Water gun down from SOL57 until 1103 restored. WATER GUN SEEMS TO BE LEAKING. REBUILDING! 57 140 1108 L57F1.DAT wire in 57 140 1110 L57F1.DAT wire in 57 140 1114 L57F1.DAT wire in 57 140 1117 L57F1.DAT wire out 57 140 1121 L57F1.DAT wire out 57 140 1144 L57F1.DAT WIRE OUT 57 140 1159 L57F1.DAT WIRE IN 57 140 1230 L57F2.DAT REBOOT OF CHIRP, SOF2 {{{NEW TAPE}}} 57 140 1247 L57F2.DAT END OF LINE 58 140 1258 L58F1.DAT START LINE....START NEW TAPE (WE THINK. IT WASN'T NOTED) 58 140 1346 L58F1.DAT Sandwaves with 50-100m spacing noted along eastern lip of HSV 58 140 1356 L58F1.DAT wire out 58 140 1430 L58F1.DAT wire in 58 140 1447 L58F1.DAT wire out 58 140 1501 L58F1.DAT EOL58 59 140 1506 L59F1.DAT SOL59 59 140 1518 L59F1.DAT wire in 59 140 1537 L59F1.DAT wire out 59 140 1545 L59F1.DAT wire out 59 140 1557 L59F1.DAT CPA of large ship (ca. 300 m) 59 140 1559 L59F1.DAT Wire out: TRY WATERGUN. STILL SEEMS TO BE TAKING TOO MUCH AIR. 59 140 1615 L59F1.DAT Fathometer died. Had to turn it off. Froze navigation. [[NEED TO PULL THE PLUG ON THE FATHOMETER READOUT PRIOR TO TURNING IT OFF AO AS NOT TO FREEZE THE NAVIGATION PROGRAM]] 59 140 1623 L59F1.DAT WIRE IN. FATHOMETER AND NAVIGATION BACK ON. 59 140 1706 L59F1.DAT END LINE. 60 140 1711 L60F1.DAT START LINE 60. WATER-GUN/SEISMICS BACK ON. 60 140 1731 L60F1.DAT WIRE IN 60 140 1758 L60F1.DAT WIRE OUT 60 140 1805 L60F1.DAT WIRE OUT 60 140 1810 L60F1.DAT EVIDENCE OF FAULTING ON THE SIDE OF THE SEA-VALLEY....SOME WILD INTERNAL REFLECTORS....POSSIBLE SLOPE FAILURE DUE TO RAPID STATIC LOADING OF DREDGE MATERIAL??? 60 140 1823 L60F1.DAT AVOIDING LOBSTER POTS. 60 140 1827 L60F1.DAT WIRE IN 60 140 1835 L60F1.DAT WIRE IN 60 140 1838 L60F1.DAT WIRE IN, THEN CA. 1M BACK OUT. 60 140 1858 L60F1.DAT END LINE 60. Transit to the southernmost line to continue dumsite coverage. 61 140 1918 L61F1.DAT START LINE 61. As we approached this line @ 45ø angle we again could see ripples in the area of high-bs. 61 140 1951 L61F1.DAT WIRE OUT 61 140 1952 L61F1.DAT WIRE OUT. 61 140 1957 L61F1.DAT CHANGE ROLL ON ODEM (END ROLL 7). 61 140 2024 L61F1.DAT WIRE IN. 61 140 2112 L61F1.DAT END LINE 61 62 140 2116 L62F1.DAT START LINE 62. 62 140 2125 L62F1.DAT SEEING SMALL CHANNELS ON THE CHIRP SUBBOTTOM. 62 140 2210 L62F1.DAT WIRE OUT 62 140 2224 L62F1.DAT WIRE IN. JUST PASSED A FAULT SCARP CUTTING THE SEA FLOOR WITH ABOUT 3-4 M OF RELIEF. SEE IT IN THE WATERGUN PROFILES. THIS FAULT OFFSETS THE DISPOSED MATERIAL!!!!!!! 62 140 2301 L62F1.DAT WIRE OUT 62 140 2313 L62F1.DAT EOL62 63 140 2317 L63F1.DAT STARTED NEW LINE 63 140 2329 L63F1.DAT SCREEN REBOOT AND HOOKED POT - WATERGUN DOWN 63 140 2338 L63F2.DAT SYSTEM UP, FILE CHANGE, TAPE CHANGE 63 140 2348 L63F2.DAT FISH NOT FIRING 63 140 2351 L63F3.DAT SIDESCAN OK,SUBBOTTOM STILL UNCORRECTED 63 140 2353 L63F3.DAT SUBBOTTOM OK 63 141 1 L63F3.DAT WIRE OUT 63 141 6 L63F3.DAT WIRE OUT 63 141 19 L63F3.DAT WIRE IN 71 141 24 L71F1.DAT WIRE IN 63 141 25 L63F3.DAT WIRE IN 71 141 25 L71F1.DAT WINCH ACTING UP - DON'T LET OUT ANY LINE 63 141 137 L63F3.DAT SEISMIC COMPUTER FROZE.. SYSTEM RE-BOOTED 63 141 205 L63F3.DAT WATER-GUN MISFIRING...REMOVED THE TRIGGER...BUILDING AIR PRESSURE BACK UP 63 141 210 L63F3.DAT GUN ON-LINE 63 141 230 L63F3.DAT WATER-GUN MALFUNCTION...PULLED ON DECK 63 141 255 L63F3.DAT END OF LINE 63 64 141 301 L64F1.DAT START OF LINE 64 64 141 451 L64F1.DAT EOL 64 @ ABOUT -73 42' 65 141 455 L65F1.DAT SOL 65 @ -73 41.5' 65 141 616 L65F1.DAT NORTHWEST TRENDING SAND WAVES ON PORT CHANNEL. 65 141 637 L65F1.DAT END LINE 65. LAST FILE ON TAPE 27. 66 141 643 L66F1.DAT START LINE 66. FIRST FILE ON TAPE 28. 66 141 709 L66F1.DAT SAND WAVES ON STARBOARD CHANNEL. 66 141 809 L66F1.DAT PRINTER DOWN FOR THREE MINUTES TO CHANGE PAPER 66 141 925 L66F1.DAT FISH OUT 66 141 931 L66F1.DAT FISH OUT 66 141 954 L66F1.DAT FISH IN 66 141 1025 L66F1.DAT EOL66 67 141 1030 L67F1.DAT SOL67 67 141 1106 L67F1.DAT WIRE OUT 67 141 1132 L67F1.DAT WIRE IN 67 141 1137 L67F1.DAT WIRE IN 67 141 1205 L67F1.DAT POTENTIAL WRECK 67 141 1407 L67F1.DAT EOL 63 68 141 1411 L68F1.DAT SOL 68 68 141 1532 L68F1.DAT WATER GUN/SEISMICS BACK ON LINE 68 141 1627 L68F1.DAT SLOW TO AVOID TRAFFIC (4.5 TO 3.5 KTS) 68 141 1639 L68F1.DAT RESUME SPEED. WIRE OUT 68 141 1642 L68F1.DAT WIRE OUT. 68 141 1644 L68F1.DAT WIRE OUT 68 141 1704 L68F1.DAT WIRE IN 68 141 1718 L68F1.DAT WIRE IN. STOP FILE. DELAY JUMPED UP. 68 141 1720 L68F2.DAT START NEW FILE. 68 141 1738 L68F2.DAT EOL. END TAPE 28 69 141 1803 L69F1.DAT SOL 69. START TAPE 29 [Rerun of Line 50; the weather line]....ISIS WAS REBOOTED LATER AND A NEW TAPE WAS NOT LOADED. THIS LINE AND LINE 70 WERE ERASED FROM TAPE 29. 69 141 1816 L69F1.DAT WIRE IN. 69 141 1836 L69F1.DAT SEEING WHAT APPEARS TO BE TRAWL MARKS AND ALSO LOBSTER POTS ACROSS THE RECORD. 69 141 1839 L69F1.DAT BOAT WAKE. 69 141 1842 L69F1.DAT WIRE OUT. 69 141 1845 L69F1.DAT LOBSTER POTS ALL OVER THE PLACE. SHIP IS GOING TO HAVE TO AVOID THEM. 69 141 1853 L69F1.DAT TRAWL MARK RUNNING THROUGH THE DUMPSITE. 69 141 1906 L69F1.DAT SEEING WHAT COULD BE GAS-CHARGED SEDIMENT IN THE WATERGUN RECORD....THE CHIRP IS BLANKED OUT 69 141 1920 L69F1.DAT WIRE IN. 69 141 1941 L69F1.DAT WIRE IN. 69 141 2146 L69F1.DAT EOL69 70 141 2150 L70F1.DAT SOL70. ISIS WAS REBOOTED ON THIS LINE AND A NEW TAPE WAS NOT LOADED. THIS LINE AND LINE 69 WERE ERASED FROM TAPE 29. 70 141 2206 L70F1.DAT HOLOCENE STRATA DIVERGING ON CHIRP AS GO NW 70 141 2231 L70F1.DAT EXTENSIVE MEGARIPPLES OBSERVED IN COARSE PATCHES - ORIENTED OBLIQUE TO SHORE 70 141 2246 L70F1.DAT WIDE, SHALLOW CHANNEL OBSERVED IN CHIRP SUBBOTTOM 70 141 2329 L70F1.DAT SCREEN FREEZE ON CHIRP -NO DATA 70 141 2335 L70F1.DAT EOL70 71 141 2338 L71F1.DAT SOL71 71 141 2340 L71F1.DAT CHIRP BACK UP 71 141 2345 L71F1.DAT WIRE IN 71 142 155 L71F1.DAT EOL 72 142 159 L72F1.DAT SOL 72 142 430 L72F1.DAT GOOD EXAMPLE OF ASSYMETRIC LINEAR HIGH-BS DEPRESSION (TROUGH OF SHOREFACE CONNECTED RIDGE. 72 142 505 L72F1.DAT END LINE 72. [TRANSIT TO THE SOUTH TO FILL IN END OF LINE 71] 73 142 510 L73F1.DAT START LINE 73 73 142 633 L73F1.DAT END LINE 73. END TAPE 29. {Noticed that the fish attitude information is not coming up any longer??} TRANSIT TO LINE 74. 74 142 745 L74F1.DAT START LINE 74. START TAPE 30. 74 142 955 l74f1.dat buried channel in Chirp subbottom 74 142 1005 l74f1.dat lots of minor channeling in Chirp subbottom - remains of glacial outwash plain? 74 142 1101 l74f1.dat EOL74 75 142 1105 L75F1.DAT SOL75 75 142 1203 L75F1.DAT FATHOMETER ON STANDBY WHILE REPLACING GUIDE ROPE 75 142 1214 L75F1.DAT SAME LARGE CHANNEL (~200 M WIDE) ON CHIRP SUBBOTTOM VISIBLE ON L74 75 142 1243 L75F1.DAT WATER GUN BACK UP WITH NEW STREAMER 75 142 1252 L75F1.DAT TRAWL MARK ON SIDESCAN? 75 142 1408 L75F1.DAT EOL 76 142 1412 L76F1.DAT SOL 76 142 1548 L76F1.DAT THE FAULT IS CLEARLY OFFSETTING THE SEA FLOOR. CAN SEE IT ON THE SIDESCAN CUTTING ACROSS BOTH CHANNELS. IN AREA OF LOW BACKSCATTER. 76 142 1558 L76F1.DAT FIELD OF SAND WAVES IN LOW-BS AREA. 76 142 1730 L76F1.DAT EOL 77 142 1731 L77F1.DAT SOL. 77 142 1813 L77F1.DAT EOL. END OF TAPE 30. 78 142 1819 L78F1.DAT SOL. NEW TAPE (31). LINE ALONG SHORELINE @ -10 M CONTOUR. 78 142 1829 L78F1.DAT SMALL COURSE CHANGE TO FOLLOW SHORELINE. GOING FROM WAYPOINT 83 TO 84. 78 142 2020 L78F1.DAT COURSE CHANGE TO FOLLOW SHORELINE 78 142 2028 L78F1.DAT SHIRMP TRAWLER WAKE ON SIDESCAN 78 142 2056 L78F1.DAT TRAWL MARKS 78 142 2106 L78F1.DAT EOL78 79 142 2108 L79F1.DAT START WATERGUN ON OFFSHORE REACH; CHIRP NOT RECORDING (REORDERING HEADINGS) 79 142 2111 L79F1.DAT START CHIRP RECORD 79 142 2119 L79F1.DAT END OF RECORD - ADDITIONAL SERVICING 79 142 2123 L79F2.DAT SOF2 79 142 2125 L79F2.DAT EOF2 79 142 2132 L79F2.DAT EOL79 80 142 2135 L80F1.DAT SOL80 80 142 2329 L80F1.DAT ISIS FROZE. END FILE. END TAPE 31 80 142 2335 L80F2.DAT NEW TAPE 32. NEW FILE. 80 143 116 L80F3.DAT START OF F3 80 143 123 L80F3.DAT END OF LINE 81 143 138 L81F1.DAT START OF LINE 81 81 143 247 L81F1.DAT FISH HAVEN. SEE A LOT OF WRECKAGE ON THE BOTTOM.....A WRECK TOO. 81 143 255 L81F1.DAT HIT FISH POT. PULL IN FISH. END SIDESCAN ACQUISITION.