HOT-206 CTD Data Processing Report · 2019-01-10 · December 11, 2008 HOT-206 CTD Data Processing...

$: HOT-206 CTD Data Processing Report · 2019-01-10 · December 11, 2008 HOT-206 CTD Data Processing Report (file location: C:\Documents and Settings\Cammy\Application Data\SSH\temp\h206ctdrep.sdw)$
December 11, 2008

HOT-206 CTD Data Processing Report

(file location: C:\Documents and Settings\Cammy\Application Data\SSH\temp\h206ctdrep.sdw)

Paul Lethaby

Post-cruise processing of CTD data from the November 29th to December 3rd ,2008 cruise of the Hawaii Ocean Time-

series.

SUMMARY

HOT-206 was conducted aboard the R/V Kilo Moana (KM) from November 29th to December 3rd ,2008. A total of 19

CTD casts were conducted (Fig. 1). A large north swell was present on the day of departure with winds strong from the

east at 25 – 30 knots. The winds died down to 5-10 knots during the second day but the swell remained. Winds shifted

to come from the south 15-20 knots. A second larger swell arrived on Tuesday 2nd December. The rosette speed during

most casts was significantly less than normal due to the swell, with the majority of downcast profiles being conducted at

15-20 m/min.

One CTD cast was conducted at KAHE (Station 1) to 1020 dbar. Sixteen CTD casts were conducted at Station ALOHA

(Station 2); Cast 1and 2 were conducted to 200 and casts 3 and 16 were near bottom deep casts conducted to 4800

dbar , all other casts at ALOHA were to 1020 dbar. One one-hour yo-yo cast to 200 dbar was conducted at Station 50

(WHOTS-5 mooring) followed by a second single cast to 200 dbar conducted at the same station.

Temperature, conductivity and oxygen sensors functioned correctly during the cruise. Mean depth dependant

temperature differences were high at appropriately 2 m °C. The secondary sensor is to be replaced for the next

cruise. The small jumps in temperature differences seen at depth were not seen during this cruise. The change in

sensor configuration during this next cruise will help identify the offending sensor which will be sent to SeaBird to

be resolved. As mentioned in previous reports these sensors have already been sent back for examination but no

obvious problems were found.

Temperature was well mixed to between 70 and 90 dbar at ALOHA throughout the cruise. Salinity was mixed to 50 – 70dbar during the the first 4 casts but in several casts conducted later in the cruise a salinity maximum was observed at 70

– 100 dbar with a small minimum beneath. The salinity minimum of 34.03 was between 500 and 550 dbar. There wassome considerable cast to cast variation in salinity below the salinity minimum to from 550 to 800 dbar. Oxygen was

similarly mixed to 50 – 70 dbar with a small maximum between 80 and 100 dbar and a secondary maximum atapproximately 350 dbar. The oxygen minimum was at 850 – 900 dbar. There was an anomalous feature with a oxygenminimum observed in several of the profiles with a small salinity maximum between 400 and 460 dbar.

Observations of the deep water below 4500 dbar (Fig. 6) revealed the cold event first observed during HOT-185 was stillpresent. Potential temperature during both deep casts was 1.10 °C over the bottom 40 dbar.

1 SENSOR CONFIGURATION

A SeaBird 9/11-Plus CTD SN 850 was utilized during HOT-206. The CTD was equipped with dual temperature,

conductivity and oxygen sensors to acquire hydrographic data. SBE-3 Plus temperature sensors SN 2907 and SN 2454

were used for all casts. Conductivity sensors SN 2218 and SN 2959 were used for all casts. Oxygen sensors SN 43918

and SN 43262 were used for all casts. The pressure sensor SN 1430 performed correctly throughout the cruise.

Rosette configuration included SeaBird carousel SN 0558 which functioned correctly. Fluorometer SN 2840 was usedfor all casts and functioned correctly. A Satlantic ISUS SN 97 was used for casts 1 – 2 and 4 – 15 at Station ALOHA.

HOT-206 CTD Data Processing Report Page 1 of 5

December 11, 2008

Benthos altimeter SN 1219 was used for all casts and functioned adequately from 25-30 m off the bottom, during the

deep casts.

2 POST-CRUISE CHANGES

One mark was recovered from for Niskin 19 from S2C12.

3 PROCESSING PARAMETERS

The time lags were calculated between the primary and secondary temperature sensors, as well as between corresponding

temperature and conductivity sensors and are shown in Table 1. The alpha values for the Lueck correction were

calculated for both conductivity sensors and are also shown in Table 1. The lag value between the temperature and

conductivity sensors remained unchanged for the primary pair and changed from -1 to -2 for the secondary pair. The

alpha value for the primary conductivity sensor also remains unchanged from the previous cruise whilst there is a change

in the secondary alpha value from 0.037 to 0.028.

Table 1. - Lags for primary and secondary temperature and conductivity sensors as well

as alpha values for the Lueck correction

Cruise

No

Sensor SN Lags Alphas

T1 T2 C1 C2 T2-T1 T1-C1 T2-C2 C1 C2

206 2907 2454 2218 2959 0 1 -2 0.028 0.028

205 4448 2454 2218 2959 0 1 -1 0.028 0.037

204 2454 4448 2218 3162 0 0 -1 0.028 0.020

203 2454 4448 2218 2959 0 0 -1 0.028 0.028

202 2454 4448 3162 2959 0 0 -1 0.028 0.028

201 2454 4448 2218 2959 0 1 -2 0.028 0.020

200 2454 4448 2218 2959 0 1 -2 0.020 0.028

199 2454 4448 2218 2959 0 0 -1 0.028 0.028

198 2454 4448 2218 2959 0 1 -2 0.028 0.028

197 2454 4448 2218 3162 0 1 -2 0.028 0.028

196 2454 4448 2218 2959 0 1 -2 0.028 0.028

195j 2454 4448 1178 1176 0 0 -2 0.020 0.028

195i 2454 4448 2218 3162 0 0 -2 0.020 0.028

194h 2454 2907 2218 3162 0 1 -2 0.020 0.020

194g 2454 2907 2959 3162 0 1 -2 0.020 0.028

193f 2454 1416 2959 3162 0 0 -2 0.020 0.020

193e 2454 2907 2959 3162 0 0 -2 0.020 0.020

192d 2454 2242 2959 3162 -1 0 -2 0.020 0.028

192c 2454 4448 2959 3162 0 0 -1 0.020 0.028

191b 2454 4448 2959 3162 0 0 -1 0.020 0.012

191a 2454 2907 2959 3162 0 0 -1 0.020 0.012

190 2454 2907 2959 3162 0 0 -2 0.020 0.020

a Before S2C17 c Before S2C3 e Before S2C3 g Before S2C4 i Before S2C17b After S2C16 d After S2C4 f After S2C4 h After S2C j After S2C16


December 11, 2008

4 ERRORS

The number of screening errors per cast are listed in Table 2. Of the nineteen casts, seventeen were above the 4000 error

threshold used to identify problems with individual casts. The majority of errors during these casts were in temperature

and conductivity differences in the thermocline during the upcast. The high number of the errors were due to the large

swell present during the cruise and the associated slow rate of descent of the rosette combined with the over the stern

deployment. Cast 1 at Station 50 was a yo-yo cast and a high number of errors is typically expected.

5 TEMPERATURE SENSOR DIFFERENCES

Temperature differences between the sensors SN 2907 & SN 2454 for all casts at Station ALOHA were obtained from

the 2Hz downcast data files, from which mean and standard deviation values were computed (Fig. 2a and 2b). The mean

difference for the cruise using this sensor configuration was -9.8 x 10-4 °C with a standard deviation of 10.7 x 10-3 °C.

The temperature sensor mean difference and standard deviation for this and previous cruises are shown in Table 3.

Table 3. - Mean temperature sensor pair differences and standard deviations

from casts at station ALOHA.

Cruise No. Ship Mean Difference

( 10-5 °C)

Mean Standard Deviation

( 10-3 °C)

206 KM -97.5 10.73

205 KM -0.072 6.97

204 KM 49.8 4.33

203 KM 46.8 3.90

202 KM 41.8 3.00

201 KM -18.8 3.12

200 KM -16.3 4.82

199 KM 52.9 8.52

198 KM -21.9 5.61

197 KM -76.2 15.20

196 KOK -2.6 4.27

195 KM 2.7 2.96

194 KM 123.8 2.12

193 KM 5.3 1.56

192 KM 175.8 3.38

191 KM 66.8 5.22

190 KOK 103.9 3.36

KOK: R/V Ka'imikai-O-Kanaloa

KM: R/V Kilo Moana

Examining the ensemble average of all casts (Fig. 2b), the mean difference was approximately 2.0 m°C in the

thermocline region and -2.0 m°C below 700 dbar. The standard deviation above 500 dbar was typically 8 m°C in thethermocline with some spikes to 18 – 20 m°C. This depth dependant difference is high and the secondary sensor SN


December 11, 2008

2454 will be replaced with SN 4448 for the next cruise. Previous cruises using sensor pair SN 4448 and 2454 have seen

some shifts in the mean differences below 2000 dbar. This was not observed during this cruise and the sensors were due

to be swapped to help identify the sensor responsible for the discrepancy. As has previously been reported both sensors

had been returned to SeaBird for calibration and to be checked and no obvious problems were found.

We suggest reporting data from the first temperature sensor.

6 CONDUCTIVITY SENSOR DIFFERENCES

Conductivity sensors SN 2218 and SN 2959 were used for all casts at Station ALOHA. Conductivity differences

between the sensor pairs used at Station ALOHA were obtained from the 2Hz downcast data files. Conductivity sensors

exhibited a mean difference of -1.9 x 10-4 S/m with a mean standard deviation of 1.11 x 10-3 S/m (Fig. 3a). The mean

standard deviation was high during this cruise and was also high during the previous cruise. The large swell during

HOT-206 could be responsible for this due to reduced profiling speed and over the stern deployment of the rosette.

During the next cruise the secondary sensor SN 2959 will be replaced with newly calibrated sensor SN 3162. The

conductivity sensor mean differences and standard deviations for this and previous cruises are shown in Table 4.

Table 4. - Mean Conductivity sensor pair differences and

standard deviations from casts at station ALOHA.

Cruise No. Ship Mean Difference

(10-4 S/m)

Mean Standard Deviation

( 10-4 S/m)

206 KM -1.93 11.18

205 KM -1.39 11.08

204 KM 1.69 5.13

203 KM -4.06 4.04

202 KM -4.68 3.77

201 KM -1.20 3.78

200 KM 0.051 5.61

199 KM -2.11 9.08

198 KM -1.04 5.90

197 KM -9.71 / -1.65* 803.2 / 16.02*

196 KOK -1.05 4.71

195 KM -6.44 3.40

194 KM -6.16 3.93

193 KM 1.27 1.75

192 KM 2.24 4.00

191 KM 1.09 5.20

190 KOK 0.63 3.47

KOK: R/V Ka'imikai-O-Kanaloa * Excluding cast 8 and 9

KM: R/V Kilo Moana

The depth dependent mean conductivity sensor difference during HOT-206 for casts 1 – 16 was between -0.4 x 10-3 S/mand 0.5 x 10-3 S/m (Fig. 3b). Below 1000 dbar the mean difference was less than -0.1 x 10-3 S/m. The maximum standard

deviation during HOT-206 was less than 10 x 10-4 S/m in the halocline around 300 dbar with some spikes to 20 x 10-4

S/m.


December 11, 2008

We suggest reporting data from the first conductivity sensor for all casts.

7 OXYGEN SENSOR DIFFERENCES

SBE-43 Oxygen sensors SN 43262 and SN 43918 were used for all casts during HOT-206. Oxygen sensors differences

were computed for casts 1 – 16 at Station ALOHA. The mean difference between these sensors was 9.83 µmol/kg with a

mean standard deviation of 3.97 µmol/kg (Fig. 4a). The oxygen current plots (Fig. 4b(i) and (ii)) as well as the figure of

the deep casts (Fig. 4c) indicate no significant drift in the sensors.

We suggest reporting data from the second oxygen sensor.

8 CTD SURFACE PRESSURE BEFORE AND AFTER CASTS

Figure 5 shows the surface CTD pressure recorded by the CTD operator before and after each cast. Surface CTDpressures give an indication of the stability of the pressure sensor during the cruise. The mean before-cast pressure andthe mean after-cast pressure was -0.018 dbar and -0.020 dbar respectively giving mean hysteresis value of 0.002 dbar.Hysteresis measured during HOT-206 is comparable to other HOT cruises and is within the normal range according toNordeen Larson (see HOT-111 CTD Data Processing Report).

9 INDIVIDUAL CAST PLOTS

Plots were made to show the temperature, salinity, and dissolved oxygen profiles for each cast at stations 1, 2, and 50

from the 2Hz data files. The first set of plots corresponds to the data from the first sensor set, followed by the plots fromthe second sensor set.

Temperature was well mixed to between 70 and 90 dbar at ALOHA throughout the cruise. Salinity was mixed to 50 – 70dbar during the the first 4 casts but in several casts conducted later in the cruise a salinity maximum was observed at 70– 100 dbar with a small minimum beneath. The salinity minimum of 34.03 was between 500 and 550 dbar. There was

some considerable cast to cast variation in salinity below the salinity minimum to from 550 to 800 dbar. Oxygen wassimilarly mixed to 50 – 70 dbar with a small maximum between 80 and 100 dbar and a secondary maximum atapproximately 350 dbar. The oxygen minimum was at 850 – 900 dbar. There was an anomalous feature with a oxygenminimum observed in several of the profiles with a small salinity maximum between 400 and 460 dbar.

Observations of the deep water below 4500 dbar (Fig. 6) revealed the cold event first observed during HOT-185 was still

present. Potential temperature during both deep casts was 1.10 °C over the bottom 40 dbar.


HOT−206 Cast Coordinates

22 40

22 50

158 10 158 00 157 50

Latit

ude

(N)

Longitude (W)

1234

5

6

78

910111213

14

15

16

157.88157.9157.92157.94157.96157.98158158.0222.75

22.76

22.77

22.78

22.79

22.8

ALOHA

5050

Longitude (W)

Latit

ude

(N)

HOT−206 Station Coordinates

Error Table HOT 206

-------------------

S C Mod P T1 C1 PT T2 C2 OC1 OT1 OC2 OT2 Xm Fl dT dC dOC dOT Total

-----------------------------------------------------------------------------------------

s1c 1 0 0229 0 0 149 631 0 0 0 0 0 27 3978 5122 0 0 10136

s2c 1 0 0 63 0 0 60 300 0 0 1 1 0 5 1849 2784 1 0 5064

s2c 2 0 2 49 0 0 43 381 1 3 3 4 0 3 1534 2796 3 0 4822

s2c 3 0 0126 0 0 82 507 0 0 0 0 0 25 2816 3957 0 0 7513

s2c 4 0 0286 0 0 176 646 0 0 0 0 0 94 5756 7902 0 0 14860

s2c 5 0 0389 0 0 320 908 0 0 0 0 0 28 6372 8493 0 0 16510

s2c 6 0 0227 0 0 155 548 0 0 0 0 0 0 4113 5709 0 0 10752

s2c 7 0 0116 0 0 80 330 0 0 0 0 0 2 3786 5630 0 0 9944

s2c 8 0 0 63 0 0 46 884 0 0 0 0 0 0 3185 5199 0 0 9377

s2c 9 0 0 45 0 0 19 211 0 0 0 0 0 0 1783 2965 0 0 5023

s2c10 0 0 61 0 0 32 165 0 0 0 0 0 20 1928 2404 0 0 4610

s2c11 0 0 69 0 0 54 297 0 0 0 0 0 58 2856 3568 0 0 6902

s2c12 0 0 96 0 0 118 335 0 0 0 0 0 39 3287 3914 0 0 7789

s2c13 0 0 71 0 0 90 360 0 0 0 0 0 5 2855 3694 0 0 7075

s2c14 0 0 39 0 0 32 204 0 0 0 0 0 0 1683 2049 0 0 4007

s2c15 0 0 21 0 0 14 188 0 0 0 0 0 0 1347 1846 0 0 3416

s2c16 0 0 55 0 0 61 230 0 0 0 0 0 0 2129 2514 0 0 4989

s50c1 0 2219 0 0 192 715 0 0 0 0 0 25 5770 7856 0 0 14779

s50c2 0 0 37 0 0 19 191 0 0 0 0 0 41 951 1784 0 0 3023

02

46

810

1214

16−

4

−3

−2

−1 0 1 2

x 10−

3H

OT

−206 M

ean Secondary−

Prim

ary Tem

perature at ALO

HA

. Mean =

−0.00097548 oC

Cast

Temperature

02

46

810

1214

160

0.005

0.01

0.015

0.02

0.025S

tandard deviation Secondary−

Prim

ary Tem

perature. Mean =

0.010734 oC

Cast

Temperature (degC)

02

46

810

1214

16−

5000

−4000

−3000

−2000

−1000 0

Maxim

um pressure

Cast

Pressure (dbar)

10Dec08 11:11

−5 0 5 10

x 10−3

−5000

−4500

−4000

−3500

−3000

−2500

−2000

−1500

−1000

−500

0HOT−206, Mean Ts−Tp

Temperature (degC)

Pre

ssur

e (d

bar)

0 0.01 0.02 0.03−5000

−4500

−4000

−3500

−3000

−2500

−2000

−1500

−1000

−500

0St. Dev. Ts−Tp

Temperature (degC)

Pre

ssur

e (d

bar)

0 5 10 15 20−5000

−4500

−4000

−3500

−3000

−2500

−2000

−1500

−1000

−500

0Number of points per bin

Data points

Pre

ssur

e (d

bar)

10Dec08 11:11

02

46

810

1214

16−

5

−4

−3

−2

−1 0 1

x 10−

4H

OT

−206 M

ean Secondary−

Prim

ary Conductivity at A

LOH

A. M

ean = −

0.0001931 S/m

Cast

Conductivity (S/m)

02

46

810

1214

160

0.5 1

1.5 2

2.5x 10

−3

Standard deviation S

econdary−P

rimary C

onductivity. Mean =

0.0011184 S/m

Cast

Conductivity (S/m)

02

46

810

1214

16−

5000

−4000

−3000

−2000

−1000 0

Maxim

um pressure

Cast

Pressure (dbar)

10Dec08 11:11

−1 −0.5 0 0.5 1

x 10−3

−5000

−4500

−4000

−3500

−3000

−2500

−2000

−1500

−1000

−500

0HOT−206, Mean Cs−Cp

Conductivity (S/m)

Pre

ssur

e (d

bar)

0 1 2 3

x 10−3

−5000

−4500

−4000

−3500

−3000

−2500

−2000

−1500

−1000

−500

0St. Dev. Cs−Cp

Conductivity (S/m)

Pre

ssur

e (d

bar)

0 5 10 15 20−5000

−4500

−4000

−3500

−3000

−2500

−2000

−1500

−1000

−500

0Number of points per bin

Data points

Pre

ssur

e (d

bar)

10Dec08 11:11

0 2 4 6 8 10 12 14 168

8.5

9

9.5

10

10.5

11

11.5

12

12.5

13

Cast No. (ALOHA station)

Oxy

gen

(µm

ol/k

g)HOT−206 Mean CTD oxygen differences, SN 43262−43918. Mean = 9.829 µmol/kg

0 2 4 6 8 10 12 14 160.5

1

1.5

2

2.5

3

3.5

4

4.5

5

Cast No. (ALOHA station)

Oxy

gen

(µm

ol/k

g)

Standard Deviation CTD oxygen differences, SN 43262−43918. Mean SD = 3.9691 µmol/kg

0 0.5 1 1.5 2 2.5 3 3.5 4−1200

−1000

−800

−600

−400

−200

0HOT−206 First Oxygen Sensor (#43918)

Oxygen Current

Pre

ssur

e (d

bar)

0 0.5 1 1.5 2 2.5 3 3.5 4−1200

−1000

−800

−600

−400

−200

0HOT−206 Second Oxygen Sensor (#43262)

Oxygen Current

Pre

ssur

e (d

bar)

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2−5000

−4500

−4000

−3500

−3000

−2500

−2000

−1500

−1000

−500

0HOT−206 First Oxygen Sensor (#43918)

Oxygen Current

Pre

ssur

e (d

bar)

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2−5000

−4500

−4000

−3500

−3000

−2500

−2000

−1500

−1000

−500

0HOT−206 Second Oxygen Sensor (#43262)

Oxygen Current

Pre

ssur

e (d

bar)

20 40 60 80 100 120 140 160 180 200−5000

−4500

−4000

−3500

−3000

−2500

−2000

−1500

−1000

Dissolved Oxygen (µmol/kg)

Pre

ssur

e (d

bar)

HOT−206 Deep casts. Oxygen sensor 43918

Mean difference: −0.98272 µmol/kg

First deep castSecond deep cast

20 40 60 80 100 120 140 160 180 200−5000

−4500

−4000

−3500

−3000

−2500

−2000

−1500

−1000

Dissolved Oxygen (µmol/kg)

Pre

ssur

e (d

bar)

HOT−206 Deep casts. Oxygen sensor 43262

Mean difference: −0.55747 µmol/kg

First deep castSecond deep cast

−0.25

−0.2

−0.15

−0.1

−0.05

0

0.05

0.1

Sur

face

pre

ssur

e (d

bar)

HOT−206 Surface Pressure before (o), and after (x) cast

1,1 2,1 2,2 2,3 2,4 2,5 2,6 2,7 2,8 2,9 2,10 2,11 2,12 2,13 2,14 2,15 2,16 50,1 50,2

Mean before−cast pressure: −0.017895 dbar

Mean after−cast pressure: −0.020421 dbar

1.085 1.09 1.095 1.1 1.105 1.11 1.115−4850

−4800

−4750

−4700

−4650

−4600

−4550

−4500

178

Potential Temperature (°C)

Pre

ssur

e (d

bar)

2006/07 Cold event

179

180182’182’ 183’183’184’185186186’

187187’

188188’ 189189’190

190’191191’

192193 193’ 194194’

195195’

196196’197

197’198198’

199199’200

200’201201’

202202’ 204204’205 205’ 206

c3206

c16

0 5 10 15 20 25−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100

0HOT−206 Station 1

Temperature [C]

Pre

ssur

e [d

bar]

34 34.2 34.4 34.6 34.8 35 35.2 35.4 35.6−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Salinity [psu]

Pre

ssur

e [d

bar]

08Dec08 09:50

0 5 10 15 20 25 30 35 40−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Temperature [C]

Pre

ssur

e [d

bar]

34 34.5 35 35.5 36 36.5 37−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Salinity [psu]

Pre

ssur

e [d

bar]

08Dec08 09:51

0 5 10 15 20 25−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100

0HOT−206 Stations 3−50

Temperature [C]

Pre

ssur

e [d

bar]

34 34.2 34.4 34.6 34.8 35 35.2 35.4 35.6 35.8−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Salinity [psu]

Pre

ssur

e [d

bar]

08Dec08 09:51

0 5 10 15 20 25−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Secondary Temperature [C]

Pre

ssur

e [d

bar]

34 34.2 34.4 34.6 34.8 35 35.2 35.4 35.6 35.8−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Secondary Salinity [psu]

Pre

ssur

e [d

bar]

08Dec08 09:52

0 5 10 15 20 25 30 35 40−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100



Pre

ssur

e [d

bar]

34 34.5 35 35.5 36 36.5 37−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100



Pre

ssur

e [d

bar]

08Dec08 09:52

0 5 10 15 20 25−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100



Pre

ssur

e [d

bar]

34 34.2 34.4 34.6 34.8 35 35.2 35.4 35.6 35.8−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100



Pre

ssur

e [d

bar]

08Dec08 09:52

34 34.2 34.4 34.6 34.8 35 35.2 35.4 35.60

5

10

15

20

25


Salinity [psu]

Pot

entia

l Tem

pera

ture

[C]

34.2 34.3 34.4 34.5 34.6 34.7 34.81

1.5

2

2.5

3

3.5

4

4.5


Salinity [psu]

Pot

entia

l Tem

pera

ture

[C]

08Dec08 09:51

34 34.2 34.4 34.6 34.8 35 35.2 35.4 35.60

5

10

15

20

25



Sec

onda

ry P

oten

tial T

empe

ratu

re [C

]

34.2 34.3 34.4 34.5 34.6 34.7 34.81

1.5

2

2.5

3

3.5

4

4.5



Sec

onda

ry P

oten

tial T

empe

ratu

re [C

]

08Dec08 09:52

0 5 10 15 20 25−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Temperature [C]

Pre

ssur

e [d

bar]

0 1 2 3 4 5 6−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Oxygen [ml/l]

Pre

ssur

e [d

bar]

08Dec08 09:50

0 5 10 15 20 25 30 35 40−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Temperature [C]

Pre

ssur

e [d

bar]

0 1 2 3 4 5 6 7 8 9 10−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Oxygen [ml/l]

Pre

ssur

e [d

bar]

08Dec08 09:51

0 5 10 15 20 25−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Temperature [C]

Pre

ssur

e [d

bar]

0 1 2 3 4 5 6−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Oxygen [ml/l]

Pre

ssur

e [d

bar]

08Dec08 09:51

0 5 10 15 20 25−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100



Pre

ssur

e [d

bar]

0 1 2 3 4 5 6−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100


Secondary Oxygen [ml/l]

Pre

ssur

e [d

bar]

08Dec08 09:52

0 5 10 15 20 25 30 35 40−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100



Pre

ssur

e [d

bar]

0 1 2 3 4 5 6 7 8 9 10−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100



Pre

ssur

e [d

bar]

08Dec08 09:52

0 5 10 15 20 25−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100



Pre

ssur

e [d

bar]

0 1 2 3 4 5 6−1100

−1000

−900

−800

−700

−600

−500

−400

−300

−200

−100



Pre

ssur

e [d

bar]

08Dec08 09:52

0 1 2 3 4 5 60

5

10

15

20

25


Oxygen [ml/l]

Pot

entia

l Tem

pera

ture

[C]

0 0.5 1 1.5 2 2.5 3 3.5 41

1.5

2

2.5

3

3.5

4

4.5


Oxygen [ml/l]

Pot

entia

l Tem

pera

ture

[C]

08Dec08 09:51

0 1 2 3 4 5 60

5

10

15

20

25


Oxygen [ml/l]

Pot

entia

l Tem

pera

ture

[C]

0 0.5 1 1.5 2 2.5 3 3.5 41

1.5

2

2.5

3

3.5

4

4.5


Oxygen [ml/l]

Pot

entia

l Tem

pera

ture

[C]

08Dec08 09:52

0 1 2 3 4 5 60

5

10

15

20

25



Sec

onda

ry P

oten

tial T

empe

ratu

re [C

]

0 0.5 1 1.5 2 2.5 3 3.5 41

1.5

2

2.5

3

3.5

4

4.5



Sec

onda

ry P

oten

tial T

empe

ratu

re [C

]

08Dec08 09:52

HOT-206 CTD Data Processing Report · 2019-01-10 · December 11, 2008 HOT-206 CTD Data Processing...

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Transcript of HOT-206 CTD Data Processing Report · 2019-01-10 · December 11, 2008 HOT-206 CTD Data Processing...