CTD Processing Summary CalCOFI 0501NH CTD Final Data (reprocessed/reformatted 03/2019) | |||||||||||||||||||||
Download 0501NH CTD raw cast files zipped | Download 0501NH FinalQC CTD + bottle data | ||||||||||||||||||||
General CTD Notes - data acquisition cast notes, logistics, processing notes are listed below | |||||||||||||||||||||
CTD sensor corrections derived by comparing 4 secs of CTD sensor data (prior to bottle closure) to bottle samples | |||||||||||||||||||||
Dual T & S | Primary Sensor | Secondary Sensor | |||||||||||||||||||
Temperature, dual SBE3 | No offset or correction | No offset or correction | |||||||||||||||||||
Salinity offset (bottle - CTD salinity; > 350m only; Seabird SBE4; fliers excluded) | -0.0042 | -0.0038 | |||||||||||||||||||
Single sensors - note only one CTD O2 sensor ml/L uM/Kg | |||||||||||||||||||||
Oxygen (ml/L & uM/Kg; single Seabird SBE43) |
y = 1.3011x - 0.0246 R² = 0.9988 |
y = 1.3011x - 1.0676 R² = 0.9988 |
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Satlantic MBARI-ISUS (SN#919) deployed |
y = 26.868x - 4.8887 R² = 0.9972 |
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SCUFA Fluorometer - linear & polynomial regressions |
y = 12.978x - 0.1243 R² = 0.6663 |
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General notes: Station Pattern & Cruise Track
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CalCOFI 0501NH • 15 Apr - 01 May 2005 • SIO RV New Horizon • San Diego to San Diego
CalCOFI 0501NH occupied 75 of 75 scheduled stations. Primary sensor data were pretty clean but there were issues with the secondary conductivity sensor from surface to ~75m on many casts. ISUS batteries were swapped after every 3 casts since charging the battery on the rosette was not implimented yet. A Seapoint fluorometer was tested on the 1st three stations, Casts 001-003 on voltage 2, the ISUS channel. The SCUFA flurometer was used for all 75 stations and performed well. Oddly, the Altimeter on V6 and PAR on V7 were misidentified on several casts (001-009, 041-046; Par = V6, Alt=V7). These sensors were not changed so the .con files are incorrect. The voltage header in the .asc files were correctly labeled but caution should be used if CTD data is reprocessed for PAR.
All casts had the SCUFA fluorometer. Please refer to each casts hdr file for specific module settings and order of application. All other CTD sensors were not changed during the cruise.
Seabird 911+ configuration:
Primary Temperature (#2533), Conductivity (#2206), and O2 sensor (#680), pumped (#55060); Secondary Temperature (#1324), Conductivity (#722) pumped (#52236); Wetlabs (CST-490DR) 25cm transmissometer (mislabeled Chelsea/Seatech in con; used original calculated M & B); SCUFA fluorometer used on all casts; Benthos/Datasonics Altimeter (#46604);
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CalCOFI 0501NH CTD Data Processing & Console Ops Notes Removed salt fliers on both primary & secondary comparisons. Original data processor was MGS, but some addtional O2 & NO3 "flier" data points were removed by JRW in 2019 reprocessing. Deepest CTD cast was 691m at sta 86.7 40.0 Cast 036, Santa Monica Basin. Only one O2 sensor was deployed and a SBE11v1 Deck Unit - requiring Align-CTD offset of secondary conductivity (0.073sec) was used.
General Notes: We started data acquisition AFTER deploying and 2 minutes @10m soak. Loopedit & Wildedit were applied to all casts.
V0 - Tr (CST490DR), original M & B calculated pre-cast 1 were used Sensors: T1 - SN2533; T2 - SN1324; C1 - SN2206; C2 - SN722; O2 - SN680; PAR - 4544; SPAR - SN6369
Reprocessing in 2019 used new final .asc files to merge with bottle data. New .asc files were generated with wfilter applied to ISUS & other CTD sensors. WIth the continual problem with secondary salinity near surface on almost all casts, derived data such as density (sigma-theta) which rely on salinity, are also bad. Using primary sensor data is recommended.
Other cast issues noted during processing:
Mislabel line.sta in .hdrs:
Casts had integer Line.Sta but there did not appear to be any mislabeled station this cruise (or they were corrected when found).
Data issues:
No ISUS data collected on Casts: 001, 002, 006, 008, 009, 013, 015, 017, 030, 035, 037, 043, 044, 046, 054-057, 064
Almost all casts had bad secondary conductivity data in the upper 70m, stabilizing deeper. Use primary salinities for shallow values.
JRW 03/19/2019 |
CTD Processing Summary CalCOFI 0504NH CTD Final Data (reprocessed/reformatted 03/2019) | |||||||||||||||||||||
Download 0504NH CTD raw cast files zipped | Download 0504NH FinalQC CTD + bottle data | ||||||||||||||||||||
General CTD Notes - data acquisition cast notes, logistics, processing notes are listed below | |||||||||||||||||||||
CTD sensor corrections derived by comparing 4 secs of CTD sensor data (prior to bottle closure) to bottle samples | |||||||||||||||||||||
Dual T & S | Primary Sensor | Secondary Sensor | |||||||||||||||||||
Temperature, dual SBE3 | No offset or correction | No offset or correction | |||||||||||||||||||
Salinity offset (bottle - CTD salinity; > 350m only; Seabird SBE4; fliers excluded) | -0.0042 | -0.0038 | |||||||||||||||||||
Single sensors - note only one CTD O2 sensor ml/L uM/Kg | |||||||||||||||||||||
Oxygen (ml/L & uM/Kg; single Seabird SBE43) |
y = 1.3011x - 0.0246 R² = 0.9988 |
y = 1.3011x - 1.0676 R² = 0.9988 |
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Satlantic MBARI-ISUS (SN#919) deployed |
y = 26.868x - 4.8887 R² = 0.9972 |
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SCUFA Fluorometer - linear & polynomial regressions |
y = 12.978x - 0.1243 R² = 0.6663 |
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General notes: Station Pattern & Cruise Track
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CalCOFI 0504NH • 15 Apr - 01 May 2005 • SIO RV New Horizon • San Diego to San Diego
CalCOFI 0504NH occupied 75 of 75 scheduled stations. Primary sensor data were pretty clean but there were issues with the secondary conductivity sensor from surface to ~75m on many casts. ISUS batteries were swapped after every 3 casts since charging the battery on the rosette was not implimented yet. A Seapoint fluorometer was tested on the 1st three stations, Casts 001-003 on voltage 2, the ISUS channel. The SCUFA flurometer was used for all 75 stations and performed well. Oddly, the Altimeter on V6 and PAR on V7 were misidentified on several casts (001-009, 041-046; Par = V6, Alt=V7). These sensors were not changed so the .con files are incorrect. The voltage header in the .asc files were correctly labeled but caution should be used if CTD data is reprocessed for PAR.
All casts had the SCUFA fluorometer. Please refer to each casts hdr file for specific module settings and order of application. All other CTD sensors were not changed during the cruise.
Seabird 911+ configuration:
Primary Temperature (#2533), Conductivity (#2206), and O2 sensor (#680), pumped (#55060); Secondary Temperature (#1324), Conductivity (#722) pumped (#52236); Wetlabs (CST-490DR) 25cm transmissometer (mislabeled Chelsea/Seatech in con; used original calculated M & B); SCUFA fluorometer used on all casts; Benthos/Datasonics Altimeter (#46604);
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CalCOFI 0504NH CTD Data Processing & Console Ops Notes Removed salt fliers on both primary & secondary comparisons. Original data processor was MGS, but some addtional O2 & NO3 "flier" data points were removed by JRW in 2019 reprocessing. Deepest CTD cast was 691m at sta 86.7 40.0 Cast 036, Santa Monica Basin. Only one O2 sensor was deployed and a SBE11v1 Deck Unit - requiring Align-CTD offset of secondary conductivity (0.073sec) was used.
General Notes: We started data acquisition AFTER deploying and 2 minutes @10m soak. Loopedit & Wildedit were applied to all casts.
V0 - Tr (CST490DR), original M & B calculated pre-cast 1 were used Sensors: T1 - SN2533; T2 - SN1324; C1 - SN2206; C2 - SN722; O2 - SN680; PAR - 4544; SPAR - SN6369
Reprocessing in 2019 used new final .asc files to merge with bottle data. New .asc files were generated with wfilter applied to ISUS & other CTD sensors. WIth the continual problem with secondary salinity near surface on almost all casts, derived data such as density (sigma-theta) which rely on salinity, are also bad. Using primary sensor data is recommended.
Other cast issues noted during processing:
Mislabel line.sta in .hdrs:
Casts had integer Line.Sta but there did not appear to be any mislabeled station this cruise (or they were corrected when found).
Data issues:
No ISUS data collected on Casts: 001, 002, 006, 008, 009, 013, 015, 017, 030, 035, 037, 043, 044, 046, 054-057, 064
Almost all casts had bad secondary conductivity data in the upper 70m, stabilizing deeper. Use primary salinities for shallow values.
JRW 03/19/2019 |
CTD Processing Summary CalCOFI 0507NH CTD Final Data (reprocessed/reformatted 03/2019) | |||||||||||||||||||||
Download 0507NH CTD raw cast files zipped | Download 0507NH FinalQC CTD + bottle data | ||||||||||||||||||||
General CTD Notes - data acquisition cast notes, logistics, processing notes are listed below | |||||||||||||||||||||
CTD sensor corrections derived by comparing 4 secs of CTD sensor data (prior to bottle closure) to bottle samples | |||||||||||||||||||||
Dual T & S | Primary Sensor | Secondary Sensor | |||||||||||||||||||
Temperature, dual SBE3 | No offset or correction | No offset or correction | |||||||||||||||||||
Salinity offset (bottle - CTD salinity; > 350m only; Seabird SBE4; fliers excluded) | -0.0005 | -0.0063 | |||||||||||||||||||
Single sensors - note only one CTD O2 sensor ml/L uM/Kg | |||||||||||||||||||||
Oxygen (ml/L & uM/Kg; single Seabird SBE43) |
y = 1.1013x ‐ 0.0706 R² = 0.9984 |
y = 1.1012x ‐ 3.0648 R² = 0.9984 |
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Satlantic MBARI-ISUS (SN#919) deployed |
y = 27.508x ‐ 5.9871 R² = 0.984 |
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SCUFA Fluorometer - linear & polynomial regressions |
y = 17.396x ‐ 0.3812 R² = 0.6072 |
y = 1.4442x2 + 16.906x ‐ 0.3642 |
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General notes: Station Pattern & Cruise Track
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CalCOFI 0507NH • 01 - 18 Jul 2005 • SIO RV New Horizon • San Diego to San Diego
CalCOFI 0507NH occupied 75 of 75 scheduled stations. Primary sensor data were pretty clean but there were issues with the secondary conductivity sensor from surface to ~75m (cable was finally identified post-cruise). ISUS batteries were swapped after every 3 casts since charging the battery on the rosette was not implimented yet. Fifteen station lost ISUS nitrate profiles due to battery and/or power cable issues or operator error (forgetting to plug in or unplug the battery).
All casts had the SCUFA fluoromete. Please refer to each casts hdr file for specific module settings and order of application. All other CTD sensors were not changed during the cruise.
Seabird 911+ configuration:
Please refer to text file: FirstThreeCastTCConfig.txt for specific sensor ids.
Primary Temperature (#2533), Conductivity (#2206), and O2 sensor (#680), pumped (#55060); Secondary Temperature (#1324), Conductivity (#722) pumped (#52236); Wetlabs (CST-490DR) 25cm transmissometer (mislabeled Chelsea/Seatech in con; used original calculated M & B); SCUFA fluorometer used on all casts; Benthos/Datasonics Altimeter (#46604);
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CalCOFI 0507NH CTD Data Processing & Console Ops Notes Removed salt fliers on both primary & secondary comparisons. Original data processor was MGS, and some O2 & NO3 "flier" data points were not removed in the regression plots. Deepest CTD cast was 704m at sta 86.7 40.0 Cast 036, Santa Monica Basin. Only one O2 sensor was deployed and a SBE11v1 Deck Unit - requiring Align-CTD offset of secondary conductivity (0.073sec) was used.
General Notes: We started data acquisition AFTER deploying and 2 minutes @10m soak. Loopedit & Wildedit were applied to all casts.
V0 - Tr (CST490DR), original M & B calculated pre-cast 1 were used Sensors: T1 - SN2533; T2 - SN1324; C1 - SN2206; C2 - SN722; O2 - SN680; PAR - 4544; SPAR - SN6369
Reprocessing in 2019 used the original final .asc files to merge with bottle data. Although new .asc files were generated with wfilter applied to ISUS. The V2 & est NO3 columns from new CTD.csvs were imported into the CTD.csvs generated from the original 2011 asc final CTD data. WIth the continual problem with secondary salinity near surface on almost all casts, derived data such as density (sigma-theta) which rely on salinity, are also bad. Using primary sensor data is recommended.
Other cast issues noted during processing:
Mislabel line.sta in .hdrs:
Cast 039 Line.Sta was misformatted as 87.55q, corrected to 87.55
Cast 054 Line.Sta was misformatted as 83.40.6; corrected to 83.3 40.6
Cast 059 Line.Sta was misformatted as 80.50.5; corrected to 80.0 50.5
Other casts had integer Line.Sta but these were parsed correctly
Data issues:
Cast 055 SCCOOS sta 83.3 39.4 CTD cast to 15m has no data except .mrk values (included in the FinalQC). The operator DMW forgot to initiate data archiving and they were in a rush to get to the next station for prodo so no recast was done. Bottles were closed at 15m, 10m, 5m, 2m so refer to .mrk for temperature & bottle data for other parameters.
No ISUS data collected on Casts: 001-006, 008, 010, 026, 038, 039, 057, 059, 071
Almost all casts had bad secondary conductivity data in the upper 50-70m, stabilizing deeper. Use primary salinities for shallow values.
JRW 03/15/2019 |
CTD Processing Summary CalCOFI 0511NH CTD Final Data (reprocessed/reformatted 03/2019) | |||||||||||||||||||||
Download 0511NH CTD raw cast files zipped | Download 0511NH FinalQC CTD + bottle data | ||||||||||||||||||||
General CTD Notes - data acquisition cast notes, logistics, processing notes are listed below | |||||||||||||||||||||
CTD sensor corrections derived by comparing 4 secs of CTD sensor data (prior to bottle closure) to bottle samples | |||||||||||||||||||||
Dual T & S | Primary Sensor | Secondary Sensor | |||||||||||||||||||
Temperature, dual SBE3 | No offset or correction | No offset or correction | |||||||||||||||||||
Salinity offset (bottle - CTD salinity; > 350m only; Seabird SBE4; fliers excluded) | -0.0040 | -0.0063 | |||||||||||||||||||
Single sensors - note only one CTD O2 sensor ml/L uM/Kg | |||||||||||||||||||||
Oxygen (ml/L & uM/Kg; single Seabird SBE43) |
y = 1.1655x ‐ 0.0907
R² = 0.9956
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y = 1.1654x ‐ 3.9386
R² = 0.9956
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Satlantic MBARI-ISUS (SN#919) deployed |
y = 27.478x ‐ 7.4693
R² = 0.9949
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SCUFA Fluorometer - linear & polynomial regressions, Casts 001 - 019 |
y = 63.737x2 + 9.8507x ‐ 0.2321
R² = 0.6630
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Seapoint Fluorometer - linear & polynomial regressions, Casts 020 - 072 |
y = 6.4626x ‐ 0.401
R² = 0.756
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y = 3.1188x2 + 3.3496x ‐ 0.0992
R² = 0.8018
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General notes: Station Pattern & Cruise Track
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CalCOFI 0511NH • 04 - 21 Nov 2005 • SIO RV New Horizon • San Diego to San Diego
CalCOFI 0511NH occupied 72 of 75 scheduled stations; stas 83.3 100, 83.3 90.0, 83.3 80.0 were missed due to rough weather. So 63 standard stations and 9 SCCOOS stations were done. Sensor data quality was atypically bad especially on the secondary sensors. Many troubleshooting attempts did remedy the problems. Some data were lost on either downcast or upcast but fortunately not both except when powering the ISUS was an issue. Batteries were swapped after every 3 casts since charging the battery on the rosette was not implimented yet. Forgetting to unplug the battery could cause fewer than 3 casts to be powered.
Casts 001 -019 had the SCUFA fluorometer. Casts 020 - 072 had the Seapoint fluorometer. These casts were processed separately so different regression coefficients from the SCUFA vs bottle chla samples & Seapoint vs bottle chla samples could be applied. Due to the noisy nature of the New Horizon seacable, both Loopedit and Wildedit Seabird modules were applied. Please refer to each casts hdr file for specific module settings and order of application. All other CTD sensors were not changed during the cruise. There were configuration (cabling) issues with the T1/C1 & T2/C2 on the first 3 casts. But these were sorted out and the .asc & .csv files should be fine.
Seabird 911+ configuration:
Please refer to text file: FirstThreeCastTCConfig.txt for specific sensor ids.
Primary Temperature (#1324), Conductivity (#2206), and O2 sensor (#680), pumped (#55060); Secondary Temperature (#1049), Conductivity (#722) pumped (#52236); Wetlabs (CST-490DR) 25cm transmissometer (mislabeled Chelsea/Seatech in con; used original calculated M & B); SCUFA (fluorometer used on casts 001-019; Seapoint chlorophyll fluorometer (SCF2483 @10x) used on casts 020-072; Benthos/Datasonics Altimeter (#46604);
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CalCOFI 0511NH CTD Data Processing & Console Ops Notes Removed salt fliers on both primary & secondary comparisons. Original data processor (FR) did not removed O2 fliers on regression plots. Deepest CTD cast was 722m at sta 86.7 40.0 Cast 036, Santa Monica Basin. Only one O2 sensor was deployed and a SBE11v1 Deck Unit - requiring Align-CTD offset of secondary conductivity (0.073sec) was used.
General Notes: We started data acquisition AFTER deploying and 2 minutes @10m soak. Loopedit & Wildedit were applied to all casts.
V0 - Tr (CST490DR), original M & B were used Sensors: T1 - SN1324; T2 - SN1049; C1 - SN2206; C2 - SN722; O2 - SN680; PAR - 4544; SPAR - SN6369
Reprocessing in 2019 used the original final .asc files to merge with bottle data. Although new .asc files were generated using wfilter applied to ISUS and other data. These specific columns were imported into the CTD.csvs that were generated from the original 2011 merging of final bottle data & CTD data. Additionally, tranmissometer data were missing from the 2011 CTD.csvs so these data columns, BAT (beam attenuation coefficient) & XMiss (% transmission) were also imported. The original M & B were used, not recalculated.
Other cast issues noted during processing:
Mislabel line.sta in .hdrs:
Cast 030 Line.Sta was misformatted as 90.27.7; corrected to 90.0 27.7
Cast 052 Line.Sta was misformatted as 83.40.6; corrected to 83.3 40.6
Cast 077 Line.Sta was misformatted as 90.37; corrected to 90.0 37.0
Other casts had integer Line.Sta but these were parsed correctly
Data issues:
Cast 030 downcast salinities ~4-6m were high so data coded "8" (questionable)
Cast 066 downcast temperature 2 and salinity 2 were bad (biofouling) from 44-87m. These
data were flagged "9" and nulled. The .bak file is available in the bak subdir if you
want to see the original values.
Cast 070 upcast salinity 2 was bad so data coded accordingly; downcast looks fine.
JRW 03/12/2019 |