OASIS Deployment Log August 1992 Deployment of OASIS Moorings M1 and M2 Please note all changes to the moorings, the OASIS controller, or any equipment that resides on M1 or M2 in this log. Sign and date your entry. The initials "rah" are for Robert A. Herlien. POSTPROCESSING NOTE PETI 8/95 R. Olivieri notes that m1 SST is high relative to ctdcruise ctd by 2.96 degrees (relationship is linear with slope 1) for the period Sep 92 tru Oct93 (ca 13 mos). 31aug92 rah OASIS revision 2.0 deployed on M1 mooring. Sync'd the surface spectro and PARs on M1A with M1B spectros Logged onto M1B by radio and deleted (temporarily) nitrate drvr 31aug92 peti partial SENSOR LIST FOR M1---DEPLOYMENT AUG 18, 1992 M1-AT SURFACE Deployed To Swapout (later) CTD 099 CTD 868 Fluor 041 Fluor---to be purchased Trans 277 Trans 451 M1-10 m N03 Analyzer cable M1-20 m (we have no swapout gear) CTD 1170 Fluor 218 Trans 87 Spectro 8720 NO3 Analyzer cable 04sept92 role Problem with surface salinity at M1 almost from start of deployment (8/31). It's very spikey and saltier than at 20 m. Francisco also suspects problem with SST on M1, it's much warmer than T from surface CTD. 11sep92 rah Found bug in decoding ATLAS wind data, where occasionly direction is off by 90 degrees. Fixed, re-extracted data. Same bug exists in first deployment, will re-extract data this weekend. Found that dropped spectro10 data from M1B correlates to download times. Connected to M1B, changed radio time to not overlap with spectro samples. 16sept92 peti Surface CTD swapped-out at M1. CTD 099 removed, CTD 868 deployed. Other sensors not swapped. Alot of small barnacles on unpainted surfaces; 3 barnacle plates deployed on CTD. Cleaned elevator sensors of barnacles. rah - Changed m1a.cfg to refer to ctd.868. 17sep92 rah Changed pCO2 to run calibration every 4th cycle, per Gernot. 21sep92 peti M2 20 m ctd 1169 back from seabird with new voltage regulator. This ctd and 1170 now known to send samples to serial port without prompting---this is a new characteristic and is part of the EPROM for these units. I set 1169's clock to GMT and started it logging at 10 min intervals, at XX:07, XX:17, XX:27 and so on. This is the same timing as at M1. This in preparation for deployment on sep 23. 23sep92 rah M2 deployed with OASIS revision 2.0 & CTD 1169. 25sep92 rah Getting some dropped characters from 10m Spectro. This is due to spectro sampling during time of radio download. So I connected to M1B and set its radio driver time back about 1 minute. Conducted time check on all OASIS clocks (+/- 3 seconds or so): M1A 10 seconds slow M1B 15 seconds slow M2 5 seconds slow I did not set the clocks to correct time. 5oct92 peti To be deployed 14oct at M1: CTD 099 (noisy one from last deployment; no repairs) Fluor 219 (new from UCSB) Trans 451 15oct92 rah Changed m1a.cfg to indicate CTD 099. Connected to M1A to start logging on CTD 099 @ 1040 PDT. Pennington et al removed pCO2 sensor. Connected to M1A to tell it to sample pCO2 at a very long interval (64800 seconds, 18 hours). Did this, rather than delete pCO2 driver, because reinstalling pCO2 driver later would likely require an OASIS reset, which I'd rather not do because of sensor synchroniztion. The result is that we'll get a pCO2 error once every 18 hours until pCO2 is returned. 16oct92 peti Swapped out as listed above about 1130 hrs 15 oct. Lots of barnacles; transmiss. windows completely fouled. Was rough and unpleasant. Barnacle plates replaced. Fluorometer cannot be swapped (due to placement of new OASIS can) without lowering elevator halfway. pCO2 tube from equilibrator was off. Downloaded CTD 868, moved data to 850, applied calibrations. 20oct92 rah Download program hung at 1000 on 17 Oct. Gary downloaded weekend data via PC on 19 Oct. I was out of town and restarted 850 download on 20 Oct. Lost 9 hours of ADCP, surface CTD, and surface spectro data. M2 ATLAS giving zero temps again, so I changed time that OASIS samples it by 3 minutes. 21oct92 rah After twice changing time that OASIS samples M2 ATLAS, it was still giving zero temps. Gary and I logged onto M2, and corrected ATLAS time. It was 2:12 fast, we corrected it at 1611 GMT. Also checked M2 OASIS time. It was 11 seconds slow, and we didn't change it. 21oct92 rah M1B is now 27 seconds slow. Didn't change it. 27oct92 chfr Anemometer on M2 was broken by POINT SUR at 302.02547. A new instrument was put on at 302.73381. 7nov92 rah ADCP failure at 1000 PST. I noticed at 1430 that it had stopped sending data to OASIS. I tried to resync OASIS to ADCP, but still no data. It's clear that, at both 1000 and 1430, OASIS listened for data for 16 minutes, because it missed ATLAS data during those times. Leslie and I tried to connect to ADCP at 1625, but it would not respond to a "break" character. I changed ADCP parm1 (timeout during sync) to 60 seconds (normally 960 seconds), so ADCP would not continue to interfere with collecting ATLAS data. (All times PST). 11nov92 peti CTD 868 back from NPS and prepared for deployment: internal switches reset for external voltages; clock, sample interval and voltage delay all set; started logging. CTD, Trans 277 and Fluor 41 sent up to ML for copper painting prior to deployment next week. I will be on a shiftup cruise and so will not make log entries for this swapout. 19nov92 chfr Cypress Sea visited M1 mooring with Captain, deck hand, Francisco Chavez, Steve Etchemendy, Todd Anderson, and Gernot Friederich. ADCP was removed from mooring when test revealed no communication between it and PC. Later discovered the cable used for test was not compatible with ADCP and unit was OK. Problem was with cable between it and OASIS. This was not discovered until return to laboratory. Deployed CTD (868), transmissometer (277) and fluorometer (41). Cable connecting CTD and OASIS was yanked out of CTD 99 while removing ADCP (ADCP hook broke and it slid back into water position) and should be replaced on next visit. Gernot reinstalled the pCO2 sensor. Phil Sammet and I dove on the mooring to check fouling on spectroradiometers. Some growth on cosine collectors, mostly on the 10 m unit. We cleaned both instruments. Major fouling problem was a nest of goose neck barnacles around the radiance collector of the 10 m unit. Animals were removed. Diving occurred around 1900 GMT. Scan of the data shows that cleaning occurred between 234.80 and 234.81. The above water work occurred between 1630 and 1900 GMT. 21nov92 peti---m2 M2 has apparently stopped sending; I visited mooring, plugged into OASIS and rebooted it. This got me the 'version 2.0' response and also the OASIS> prompt. At this prompt I typed 'reset all', but got no response from the mooring. It was a beautifully calm day; there was little apparent barnacle fouling of/under mooring. 14dec92 peti Equip prepared for planned swapout dec16. CTD 099 will be deployed in place of 868. Fluorom 41 and Trans. 277 will remain deployed---not swapped. Also plan to deploy 3 kinds barnacle plates, and redeploy ADCP. CTD 099 has been back to seabird for recalibration; I set clock, sample interval, external voltages, and voltage delay. 06jan93 rah Moved data from /usr/local/oasis to /oasis. Created links so move is transparent to user, unless optical drive /oasis is down. 08jan93 rah Changed pCO2 to sample every 4 hours, to conserve power. This due to the fact that we haven't been fully charging the last 4 days, and I think I noticed some anomalies with the battery charge. 22jan93 peti Planned swapout of dec16 did not take place. Equipment reprepped today, for planned swap jan25. Will deploy ctd 099, fluor 219, trans 451. Will also replace cable from ctd to oasis, and try to talk to the 20 m ctd which has has problems. We also plan to visit m2 and replace the oasis can there and install gps. We also may dive on both moorings. All of this, of course, weather permitting. 25jan93 peti---m2 Oasis can swapped out at the m2 mooring, and gps antenna installed. Weather choppy and unpleasant; not many barnacles on/under mooring. Used zodiak; mooring jerked alot less than when tied to Lobos. Need to: 1. install barnacle plates. 2. fix 2nd PAR sensor, which is not working. 25jan93 peti---m1 Surface ctd 868 replaced with 099. Trans and fluorom not replaced, as the TBT rings seem to be working. Alot of large barnacles on elevator parts; these scraped off. I wonder if spray cans of copper paint can't be bought and applied wet; Wardle suggests wrapping threaded studs of elevator with silver tape. Also replaced cable from ctd to oasis. All this did not cure ctd noise problem. Gernot installed new equilibrator for pco2 sensor. We unplugged 20 m ctd cable from oasis can and tried to talk to the ctd with scterm---failed. Problem must be below oasis can. Pin on slider to lock elevator hoisting pulley frozen---cannot lock pulley in 'in' position. Not clear how important this is. My smooth barnacle plates not working; tried new 'pyramid' types. May change back to Roughgarden type; waisting alot of time! Need to: 1. dive and replace 20 m ctd cable. 2. fix 20 m spectro. 29jan92 peti---m1 Todd Anderson, T3, and Gerry Hatcher re-installed ADCP from Fish & Game Vessel. ADCP woke up and started collecting data at 18:45 GMT as set by Leslie and Bob back at 160 Central. 10feb93 peti---m1 On ctd cruise deployed fluor 219 and trans 451 in place of others. Also replaced cable connecting ctd and these sensors. No effect on ctd data occilation, which continues. Installed barnacle plate on a rope. Need to: 1. swap surface and 20 ctd cables on oasis can, to check again if problem is below can. 2. Then dive and remove all 10 and 20 m sensors, leaving cables in place (too hard to remove). 25feb93 peti---transmissometer air calibrations Transmissometers need to be supplied with 9-12 V and output voltage measured with windows blocked and cleaned (ETOH cleaning dissolves and smears copper paint; use water), periodically. This has not been done routinely up until now. Below summarizes some of this. The factory values were taken from the manuals; the other values from benchtop tests. The value to be entered in the .cfg files for processing is %T = (20 * A/B) * (V - Offset). Offset is the dark voltage, A is the cleaned factory voltage, B was the cleaned benchtop voltage A B Offset Trans 87, Factory ? ? 7/92 (m1 20 m) 4.43 V Trans 277, Factory ? ? 2/25/93 (now in lab) 4.72 .002 V Trans 451, Factory ? ? (Now at m1, surface) Trans 284 Factory 4.745 .003 2/25/93 (PtLobos rosette) 4.65 V .003 V Trans 485, Factory 4.686 .000 (Now at m2 20 m) Trans ??? (PtSur rosette) I will be working on straightening this out. PtLobos rosette trans drifted 2% in 5 years---not a big deal. 03mar93 rah On 02march, Francisco visited M1 and removed all 3 spectro's. On 03march, I connected to all 3 cans to stop sampling for removed and malfunctioning equipment. On M1A, I deleted the driver entry for the spectro (raw/logs/m1a.34). On M1B, I deleted the entries for 10m and 20m spectro the 20m CTD. I also turned off the permanent power to the 20m CTD (raw/logs/m1b.23). On M2, I deleted the entry for the 20m CTD, but I left on its power in case it's still sampling (raw/logs/m2.12). I also checked the time for all three cans. M1A is 1:19 slow, M1B is 1:53 slow, and M2 is 0:28 slow. 5mar93 peti---m1 Transmissometer 87 from m1 at 20 m calibrated in air. This is the only unit I had calibrated previously. Air voltage --- 4.38 V Dark voltage ---.002 V (offset) 9mar93 peti---m1 Deployed transmiss. 277 and fluor 41 at surface at m1 in place of Trans 451 and Fluor 219. These latter have been in just one month, with TBT rings, but the data show fouling. However there is no visible fouling of instruments, including the baffles of trans. Instead, a couple of large barnacles may have been able to reach into the light path from elsewhere on the mountings. Either that, or small fish, or nudibranchs ... My new barnacle plate on a rope had ZERO recruits, so I left it deployed. Zero recruits seems OK, as there were few or no tiny Lepas on the instruments anyway. To do: 1. Get the surface ctd occilation stopped. 2. Redeploy subsurface sensors? 3. Air calibrate Trans 451; get factory calibrations for other Trans'. 4. Deploy barnacle plates at m2 and at m1 10 and 20 m. 9mar93 peti---air calibrations Transmissometer 451 gave air calibration of 4.73 V in air with cleaned windows. Its dark calibration is 0.004 V. 10mar93 peti---m1 After swapout transmiss gave highly variable low readings, and fluorometer gave steady low readings. On ctd cruise I checked windows for obstructions (barnacles or loose TBT rings; all seemed fine) and cleaned out electrical connections. These measures did not help, but a couple hours later the transmiss voltage came up and steadied. The weather was very calm. It is my feeling a bubble became trapped against the uppper window, and persisted for some time under these conditions. This does not explain the fluormeter voltage. m1 `barnacle plate on a rope' had 1 Lepas recruit on it, apparently since the previous day. 10mar93 peti---m2 Visited m2 and installed a `barnacle plate on a rope'. Also checked cabling to par sensors; it appeared OK. The mooring was 2 km south of where we had seen it last. One of the solar panel brackets was broken and the panel flexed, and the corner of another panel slightly bent. There were also some odd marks (not clearly damage) on the donut. We wondered if the mooring had been dragged between today and the previous ctd cruise, or if the damage was all from the Sur and the movement all within the watch circle. Should probably plot upu the watch circle/GPS data. 11mar93 peti---m1 fluorometer voltage I checked back through the archival m1 fluorometer voltages. Voltages upon deployment were typically .4-.7 V, and records over a volt occurred just prior to swapout. The high voltages apparently indicate fouling for this instrument. Thus, the 2-3 V for fluor 219 just prior to the last swapout apparently indicate fouling, and the .3-.5 V recorded for fluor 41 just after the most recent swapout are probably good data. There seems no indication that barnacles or TBT rings or anything else are occuluding the windows at present. 26mar93 rah Noticed that M2 was giving zero temps, a known problem. Connected to ATLAS on M2 and reset ATLAS time of day. It was running 11:37 fast (at 22:36:00 GMT, it claimed time was 22:47:37 GMT). Set to correct time of day. Had much difficulty doing so -- it seemed as if the packet radio was doing a lot of retransmissions, and the delays were quite long. Couldn't verify (via ^T) that ATLAS was now working. Will watch data. 5-6apr93 rah M1A has developed a problem in which it resets a log (> 20 times in 24 hrs). On 5 April I recovered the data lost due to resets during downloads. On 6 April I attempted to do the same, but noticed that the logs had gotten corrupted, presumably because of a reset while logging data. Issued a "reset all" at 8:35 AM PDT. Advised Francisco to attempt swapout of M1A during tomorrow's CTD cruise. 7apr93 rah Thurmond, Pennington, et al visited M1 and replaced OASIS can #1 with can #2 for the M1A function. Gernot removed the pCO2 sensor due to assumed blockage from condensation. Disconnected CTD from OASIS to test hypothesis that noise on salinity is due to OASIS. I removed RAM drivers for Spectro (still gone), pCO2, and CTD. Restarted OASIS and ATLAS. Connected to M1B and removed RAM driver for air pump driving pCO2. 7apr93 peti---m1 Trans 277 replaced by 451; Fluor 41 repl by 219; Ctd 099 repl by 868. Gary T. found battery box with water in. Barnacle card repl. 868 running on internal batteries, to try to isolate it from whatever is causing the ctd data occilation. 13apr93 peti Francisco remains concerned fluor 41 gives low values. With unoccluded windows it produces -.001 V, and with partly occluded windows it produces 6.69 V (maximal). These are normal. When opened, it was dry. Time constant 3 sec, and sensitivity medium (3X). These are also as hoped. So far, no problem has been found. 14apr93 role ATLAS compass on M1 went bad. Wind directions after this date are no good. 21apr93 peti---m1 Replaced ctd 868 with 1170. Did not swap trans or fluor as these had no visible fouling. Gary worked on battery box cleanup (lost cable to s-panels) and Gernot reinstalled pco2 system. 22apr93 rah Yesterday's operation resulted in loss of solar power to M1. Reduced pco2 to 4 times/day, pco2 pump to every 30 minutes, and GPS to hourly, until solar panels repaired. At this rate, our time until 50% discharge of battery is 18 days. 27apr93 rah M2 is again giving zero temperatures at random. Connected to ATLAS on M2 and reset ATLAS clock. Connected to M1B and increased pco2 pump to every 10 minutes, per conversation with Gernot. This only increases energy consumption by 64 mAh/day. 03may93 rah Gary T. spliced new solar panel connector to M1. I restored pCO2 and GPS to default sampling times. 06may93 rah M2 ATLAS acting up again. Connected to M2 ATLAS, reset ATLAS clock again. Also changed time OASIS samples ATLAS, offsetting it by 5 minutes. 10may93 rah M2 ATLAS still bogus. I turned off ATLAS power for 20 minutes, then back on as a way to reset everything. Still getting bad data on every other temperature. I think one string has gone bad. Since the 20m pod was acting up during calibration, I suspect that it's screwing up the whole string. 17may93 rah Download hung over weekend, resulting in OASIS resets. Started new downloads. Spectros replaced on M1 on Friday, but installed upside-down. Connected to M1B and "reset all", then reconnected and deleted Nitrates and CTD20, and added pump. Connected to M1A and added spectro driver. 21may93 rah Determined that connectors for 10m Spectro and pCO2 pump (on M1B) were reversed in reinstallation. 10m spectro power connector should be plugged into connector position 2C, which is power bit 1, but is instead plugged into 2A, which is power bit 3. pCO2 pump should be in 2A, and we think is actually in 2C. Logged onto OASIS M1B, and changed spectro10 to use bit 3 (data = 08) and pump to use bit 1 (data = 02) for power control. 28may93 peti---m1 Gernot, T3 and I took Ridgeway to mooring. Gernot removed pco2 box, and I deployed ctd 868, fluor 218, and trans 277, all with TBT rings. Removed ctd 1170, trans 451, fluor219; windows on trans and fluor looked clean. These had rings too. Gernot switched connectors for 10 m spectro and pco2 pump on M1B oasis can. 09jun93 peti---m1 Gernot and Tim worked on mooring from PtLobos. Gernot reinstalled pco2 system. I left ctd 868 in place, but replaced fluor 218 and trans 277 with fluor 219 and trans 451. There was no fouling on any of these, though there were a few tiny barnacles on my fouling plate which I also swapped. Something of the above operation caused the ctd to begin occilating again; fluor and trans data seems fine. The adcp cable became disconnedted from OASIS this time too, as we raised elevator. We noticed this and reconnected it. 16jun93 peti---m1 spectros The following from inspection of spectro data on the 850. All 3 spectroradiometers were apparently installed May 17 (jd 137), though there is no data recorded for the surface spectro until jd 138. MER time matches OASIS time closely at installation. There is no data for jd 139 for the 10 m spectro for unknown reasons. The 10 and 20 m units were installed upside down, and this was rectified May 20 (jd 140). However, MER time for the 10 m spectro on and after jd 140 is 0.84 days behind OASIS time, and remains so until this entry, jd 167. Clocks in the other units seem fine. (The files of spectro data are broken according to OASIS days, not MER days.) Also, data files for the 10 m unit for jd 140 and 141 are suspiciously small, though they do contain light data for the latter part of each day. 7jul93 peti---m1 swapout, jd 188 trans277, fluor218, ctd1170 swappedin; swappedout ctd868, fluor219, trans451. Windows look clean on all; light new barnacle fouling; sealion on donut. Fluorometer 219 was pegged at 5.0 Volts; Fluor218 remains so; water very brown. The new transmissometer voltage is anomalously low. It is very calm; perhaps there is a bubble against the downfacing window. Both temp and sal of ctd868 appear very noisy---the old quasi-occilation. Temp of 1170 appears noisy but sal much steadier. Will have to plot up. 15jul93 peti Transmiss voltage became normal after ca 24 hrs; bubble theory must be right. ctd1170 sal data much steadier than 860, although perhaps a hint of an occilation in there. Bench tests of 868 connected to fl219 and tr451 produced rock-steady data. Occilation must have to do with mooring. 21jul93 peti---m1 & m2 Because of off-scale outliers in data, I cleaned tr and fl on m1. Did find a few largish barnacles hidden near the sensors. Subsequent data lacks the outliers. Sea lion on m1 donut again. Visually inspected m2---seems ok. 4aug93 peti---m1 chfr visited m1, cleaned some barnacles from ctd, tr, fl. I think he reinstalled surface spectro. Not sure what else. He changed out barnacle plates for me. 18aug93 peti---m1 Swapped in ctd 868, fl 219, tr 451; removed 1170, fl218, tr 277. Did not change barnacle plates; no fouling. Gernot removed pco2 sensor. Grey sloppy day; no sealion. 23aug93 peti---m1 Hans installed nitrate sensor. 01sep93 peti---m1 clear water and blue sharks around etch installed acoustic modem Gernot reinstalled pc02 sensor Swapped in ctd1170; left fl219 and tr451 in place; oddly, this did not remove the occilation in salinity data; perhaps occilation due to fl219??? Swapped barnacle plates 01sep93 peti---m2 visual inspection m2; seemed fine; huge skirt of barnacles around bottom of donut. 17sep93 peti---m2 Recovered m2 with pt sur. trans 485 fluor 79 ctd 1169 were all on 20 m cage 11-17sep93 peti---oasis drifter on shiftup7 had both temp and sal occilation. ctd was internally powered; oasis was battery powered. Must be some electical problem not connected to the mooring, and not assoc with power supply to the ctd. Testing on bench now. 22sep93 peti---m1 Gernot fixing equilibrator head; swapping barnacle plates. 27sep93 peti---air calibrations recovered m2 sensors trans 485---prewiping air 2.573 V (windows look frosty w/ dried salt) air 3.600 V (I wet windows with tap water; they look clearer now) dark 0.007 V trans 485---postcleaning air 4.56 V dark 0.007 V fluor 79 air 0.02 V (prewiping) air -0.03 V (postwiping) dark 6.68 V (partly occluded) flash nice and bright 27sep93 peti---air calibs sensors from su7 drifter trans 87 (precleaning; as on drifter) air 3.81 V (dry) air 4.32 (postwiping) dark 0.00 V fluor 41 air 0.00 V (hosed off only) dark 6.70 V (partly occluded white towel) 28sep93 peti---air calibs other avail T/F trans 277 air 4.71 V cleaned dark 0.00 V fluor 218 air 0.002 V dark 6.74 V 27sep93 peti---sensors for galap drifter trans 87 fluor41 Ctd 1169 6oct93 peti---m1 Cleaned T-F-CTD but did not swap anything. T voltage was low and improved after cleaning LOTs of caprellids off cable ties holding on TBT rings. Water very brown. No barnacle recruitment observed; plates swapped; pillow float recovered with only 2 barnacles on it. 14oct93 peti---m1 & 2 Deployed m2, recovered m1