(november 11th geo-scientific studies of the exclusive...

357ORV- Sagar Kanya

SK-343 Cruise Report (November 11th2017 to December 15th 2017)

Geo-scientific Studies of the

Exclusive Economic Zone

NATIONAL CENTRE FOR ANTARCTIC AND

OCEAN RESEARCH HEADLAND SADA, VASCO-DA-GAMA

(GOA)-403804

1.

Cruise

ii

CONTENTS

1. Introduction ................................................................................................... 1

2. Cruise Iternery .............................................................................................. 2

3. List Of Participants ...................................................................................... 3

4. Objectivearea Of Operation ....................................................................... 3

5. Methodology And Survey Equipments ....................................................... 4

6. Scientific Observation And Other Work During The Cruise .................. 7

7.Acknowledgement ............................................................................................ 8

ANNEXURE

1. Diary of Events

2. CTD/SVP Data Collection

3. Logsheet

4. Sediment Sampling

1. INTRODUCTION

Judicious utilization of offshore resources is very vital for the economic prosperity of any

country in the world. The control over the oceans is regulated by the Law of the Sea

convention of 1982, which came into force on November 16, 1994 and it defines oceanic

jurisdiction for all countries. This Law extends the legal right to the coastal countries to

exploit, develop, manage and conserve all resources to be found in the water and in the sub-

soil ofan area extending 200 nautical miles from its shore i.e. Exclusive Economic Zone

(EEZ).

Utilities:

The Exclusive Economic Zone (EEZ), about 200 nautical miles from coast, the zone outside

the territorial water of the country over which a country is permitted to do economic activities

like fishing and is entitled to explore and exploit the natural resources of the area.

The detailed map of the EEZ shall be useful in the following purposes:

(i) Fishermen for fishing operations using deep trawl or bottom fishing gear,

(ii) Petroleum, natural gas and mineral exploration as well as exploitation,

(iii) Development and assessment of mineral resources,

(iv) Telecommunication industry for lying cables,

(v) Sub-sea pipe lines for geological hazard assessment,

(vi) Effective disposal of waste and reducing pollutants,

(vii) Ocean engineers for constructing and maintaining structures of port and harbor.

Indian EEZ:

India has an Exclusive Economic Zone (EEZ) with an area of about 23, 05,143 km2along its

7516km coastline (including the coastline of Andaman and Nicobar Islands and

2

Lakshadweep Islands) as shown in figure-1. This constitutes about two-third of the land area

of the country. Realizing the need to be cognizant about the enormous potentials of our

country’s EEZ, the Government of India has decided to prepare a comprehensive map of

entire EEZ of India and National Centre for Antarctic and Ocean Research (NCAOR), Goa

has been appointed as the nodal agency for the implementation of this programme.

Figure 1: Indian EEZ map with the satellite bathymetry data, costal line of India and EEZ

boundary of India

2. CRUISE ITERNERY

The scientific team for multibeam survey in Gulf of Mannar, embarked onboard the vessel at

Tuticorin Port on 11thNovember 2017. After completion ofthe survey, vessel returned to

Chennai Port on 15th Decmber 2017.

Departure : Tuticorin, 11.11.2017

Arrival :Tuticorin, 15.12.2017

No of Days : 34 days

3

3. LIST OF PARTICIPANTS

1. Twinkle Damodharan NCAOR Ch. Scientist

2. MavungalArunlalSarunlal KCU Scientist

3. EdayiliamSreevidhya -do- -do-

4. NarathMeethalGayathri -do- -do-

5. Rahul Mavi NCAOR Shipboard Asst.

6. Mr. V.C Saratchandran NORINCO AMC-Service Engineer

7. Ramesh Raju -do- -do-

8. ElavarasanVasantharaja -do- -do-

9. Rajendran Prakash -do- -do-

4. OBJECTIVE AND AREA OF OPERATION

The primary objective of the SK-341 cruise was to undertake multibeam bathymetric and

Magnetometer survey in Gulf of Mannar region (Block_A7)within the EEZ of India as shown

in figure-2. Also to collect gravity cores / grab and to conduct CTD/SVP cast at different

locations within survey area. And in figure2shows the CTD/Sound Velocity Profile (SVP)

locations and Gravity Core (GC) locations alongwith vessel tracks prepared for the

bathymetry data acquisition.

The total area covered in BlockA7 is 13639 sq. km, with trackline distance of 6393km.

Figure 2 : Cruise tracks of the bathymetry survey and locations of Grab and CTD/SVP

stations.

4

5. METHODOLOGY AND SURVEY EQUIPMENTS

5.1 Methodology :

The Multibeam survey was carried out using standard Survey practices. The tracklineswere

planned in order to obtain about 50% overlap at average speed of 5-7.5knots. Navigational

and attitude information is provided by C-NAV DGPS system. Ship track was maintained

within ±20 m.

Figure 3Trackline of SK-343

5.2 Equipment details:

5.2.1 SeaBeam-3012 MultibeamEchosounder System:

SeaBeam-3012 MultibeamEchosounderonboard ORV-SagarKanya was utilised to carry out

the surveys in Gulf of Mannar region. The SB-3012 is a 12 kHz, 201 beam sonar system, has

a beam width of 2° at nadir and is capable of measuring depths ranging from 200 m to 11000

m. Brief technical specification of the SB-3012 MBES system are as follows:

Manufacturer : L3-Communications Elac-Nautik GmbH, Germany

Number of Beams :189

Swath Coverage : 140°, 2° × 2° (5.5 × Depth),~20 dB backscatter

Depth :200 to 11, 000 m

Frequency of Operation : 12 kHz

Max. Source Level : 2° = 241 dB/mPa

5

Pulse Length : 2, 3, 5, 7, 10, 14, 20 ms

Side Lobe Suppression :> -30 dB

Technology : Full motion compensation (Sweptbeam technology)

Acquisition Software :Hydrostar

Data Processing Software :Carris HIPS & SIPS

The complete Multibeam system complex comprises of many sub systems:

a. Surface Sound velocity (SSV): The surface sound velocity profiler is an underway ocean

surface profiling system that collects the water sound speed continuously.

b. Gyro & Motion Sensor:Multibeam system uses IXSEA-Octans sensor for Gyro and

motion input. Octans is an IMO compliant survey grade gyrocompass with an integral motion

sensor.

c. Positioning System: The C-NAV DGPS subsystem is used for positioning accuracy. C-

NavGcGPS corrections are similar to other wide area DGPS system such as the Federal

Aviation Administration’s (FDA) wide area augmentation system (WAAS). The C-Nav GPS

receiver can accept two (2) different GcGPS correction service message formats. The C-Nav,

dual frequency, GPS equipment receives either of these corrections broadcast from the

communications satellite, applies them its own observed refraction corrected C/A code, dual

frequency observations, and performs a navigation solution. The resulting corrected GPS

position; velocity and time (PVT) are output from the C-Nav equipment to other subsystems

on the platform/vehicle/vessel to support the navigation positioning control requirements.

d. Network Time Server with GPS Synchronized Time Base: LANTIME (local area

network timeserver) provides a high precision time base to a TCP/IP network (stratum-1-

server). The NTP (network time protocol) is used to synchronize all NTP clients with the

reference. LANTIME/GPS is a set of equipment composed of a satellite controlled clock

GPS167, a single board computer with integrated network board and a power supply, all

installed in a metal 19” on the single-board computer flash disk. Four push buttons and a 2 x

40 character LC display can be used configure and monitor the time server. After the network

connection has been bestialized, the timeserver can also be configured and monitored

remotely from a work station via TEL/NET or FTP.

e. Network Time Protocol (NTP): NTP is a common method for synchronization of

hardware clocks in local and global networks. Timeservers synchronize themselves by a

reference time source, such as a radio controlled clock, GPS-receiver or modem time

distribution. Stratum-1-server distribute their time to several clients in the network which are

6

called stratum-2. A high precision synchronization is feasible because of the several time

references. Every computer synchronizes itself by up to three valued time sources. NTP

enable the comparison of the hardware times and the adjustment of the own clock, a time

precision of 128 ms, often better than 50 ms is possible.

5.2.2. Conductivity Temperature & Depth (CTD)

As the Sound Velocity Profiler (SVP) depth display was working, for this Sound Velocity

Profiler attached with the CTD cast. The vertical structure of sound velocity was

derivedusingSVP and CTD Cast. CTD is used to study various parameters like

temperature,conductivity, pressure etc. at various depths. The SBE-911pluswas utilized to

measure conductivity, temperature, and pressure in depths up to 6, 000 meters.The sketch

diagram of deployment of CTD as shown in figure 6.

Figure 4: the sketch shows the CTD cast with deployment unit.

5.2.3 Magnetometer

The magnetometer used onboard this vessel is a Cesium Vapour (Optical Pumping)

Magnetometer, manufactured by Geometrics Inc, based in California, US. The model number

was G-882 which belonged to the G-88x series of Geometrics™ Marine Magnetometer. The

magnetometer fish is towed behind the ship at length three times the length of the ship.

Figure 5Cesium magneto meter

7

Technical Specifications of the G-882 Marine Magnetometer

Operating Principle Self-Oscillating split-beam CeisiumVapour

Operating Range 20, 000 to 100, 000 nT

CM-221Counter Sensitivity <0.004nT/Hz rms. Up to 10 samples per second.

Heading error 1nT (over entire 360E equatorial and polar spin)

Absolute accuracy <nT throughout Range

Output RS-232 at 1200 to 19200 Baud

Operating Temperature -30°F to +122°F (-35°C to +50°C)

Storage Temperature -48°F to +158°F (-45°C to +70°C)

Altitude Up to 30, 000 ft (9, 000 m)

Water tight Up to 9000 ft (2750m) depth operation

Power 24 to 32 VDC, 0.75 amp at turn-on and 0.5 amp thereafter.

The deck unit is connected to a winch cable via a deck cable. The deck unit is connected to

the computer along with a DGPS. The winch cable is connected to the magnetometer through

a sea cable (towing cable).

The output obtained through the Mag Log Lite tm software is as follows:

Figure 6:computer display of acquisition data

Where the signal strength is measured in Volts (V) and the magnetic field is measured in

nanotesla (nT).

8

5.2.4: Gravity Coring:

Gravity corer was used for sediment sample collection at one location. The corer consists of

an open-ended tube with lead weight (~700kgs).The corer is lowered into the seabed and

generally penetrates to a depth of up to 5-6 m. Gravity core lowering as shown in figure 5.

One core have been collected from Gulf of mannar and other one have been taken from off

Chennai( Cauvery-Palar Basin).

Figure 7 : Grab operation

During GC-2 the core barrel got bend

Figure 8 : Core Barrel

9

6. SCIENTIFICOBSERVATION AND OTHER WORK DURING THE

CRUISE a. During the cruise,the MB data was processed with CARIS and Mapped.

b. SVP profile have taken in 6 Location

c. Gravity core was collected at2locations.

Figure 9 : Area covered in SK 343

Figure 10Bathymetri c map of Gulf of Mannar( SK-343- & SK 341)

10

7. ACKNOWLEDGEMENT

The whole team of SK-341 place on record their deep sense of gratitude to Director, National

Centre for Antarctic and Ocean Research, for assigning responsibilities for EEZ survey

cruise.Team is also thankful to Dr.JohnKurianP,Mr.AbhishekTyagi and Mr. M. M.

Subramaniam for their support for the success of SK-343 cruise. The support and co-

operation rendered by NORINCO personnel is specially appreciated.TheScientific team also

wishes to thank the Master and crew of the vessel for their co-operation during the cruise.

11

ANNEXURE

1. Diary of Events

DIARY OF EVENTS SK-343

Date Time

(GMT)

Events(Lat/Long - ddmmss ; SOG- Speed Over Ground; COG- Course

Over Ground; D-Depth;WS- Wind Speed (knots); W- Weather)

11/11/2017 Vessel heading from Tuticorin to A7 block

Transit to A7 block. Vessel functioning and multibeamsettings checked. Vessel arrived at A7 block @

1728

BLOCK-A7

11/11/2017 1728 SOL SK341-PL01 , 08 51 17N , 78 47 17E

1900 EOL SK341-PL01 , 08 42 50N , 78 45 08E

1910 SOL SK341-PL02 , 08 42 44N , 78 44 59E

2131 EOL SK341-PL02 , 08 51 49N , 78 57 06E

2151 SOL SK341-PL03 , 08 51 54N , 78 56 20E

2151 EOL SK341-PL03 , 08.52.00N , 78.55.06E

2214 SOL SK341-PL04 , 08 52 06N , 78 52 24E

2334 EOL SK341-PL04 , 08 47 04N , 78 47 04E

2342 SOL SK341-PL05 , 08 46 44N , 78 47 04E

12/11/2017 @0230 08 48 14N , 78 47 54E , SOG 6.1 , COG 102 , D 484 , WS 6, W calm

0024 EOL SK341-PL05, 08 51 13N , 78 47 52E

0152 SOL SK341-PL06 , 08 50 59N, 78 48 39E

0219 EOL SK341-PL06, 08 48 59N, 78 47 49E

0457 EOL SK341-PL07, 08 56 21N, 79 01 57E

0500 SOL SK341-PL08, 08 56 21N, 79 02 07E

0751 EOL SK341-PL08, 08 55 27N, 79 22 51E

0810 SOL SK341-PL09, 08 56 16N, 79 22 27E

1127 EOL SK341-PL09, 08 57 10N, 79 01 35E

1139 SOL SK341-PL10, 08 58 01N, 79 01 35E

1411 EOL SK341-PL10, 08.57 16N, 79 20 39E

1420 SOL SK341-PL11, 08 57 10N, 79 21 39E

1600 EOL SK341-PL11, 08 50 02N, 79 27 30E

12

1602 SOL SK341-PL12, 08 50 03N, 79 27 22E

2230 EOL SK341-PL12, 08 25 44N, 78 55 00E

2238 SOL SK341-PL13, 08 25 18N, 78 55 27E

2255 EOL SK341-PL13, 08 24 03N, 78 54 38E

2308 SOL SK341-PL14, 08 23 45N, 78 55 01E

13/11/2017 @0230 08 40 44 N, 79 16 42E, SOG 7.1; COG 51; D 1082, WS 6.7, W calm

0422 EOL SK341-PL14, 08 47 33N, 79 25 26E

0453 SOL SK341-PL15, 08 45 49N, 79 24 42E

1153 EOL SK341-PL15, 08 22 25N, 78 56 24E

1157 SOL SK341-PL16, 08 22 09N, 78 56 10E

1706 EOL SK341-PL16, 07 54 46N, 78 53 01E

1709 SOL L01, 07 54 22N, 78 52 54E

14/11/2017 @0232 07 14 08 N, 78 36 11E, SOG 5.2, COG 221.6, D 2397 , WS 15, W

moderate

0539 EOL L01, 07 00 08N, 78 30 23E

0630 07 00 16N, 78 21 51E Stoped for CTD

1007 SOL L02, 07 00 00N, 78 27 24E

1056 07 04 08N, 78 29 04E Magnetometer deployed

2238 EOL L02, 08 03 12N, 78 53 26E

2359 SOL L03, 07 58 36N, 78 53 07E

15/11/2017 @0230 07 47 57N, 78 48 42E, SOG 4.1, COG 210, D 2031, WS 24, W rough

1153 EOL L03, 07 00 07N, 78 28 53E

1156 06 59 55N, 78 28 48E

1243 06 59 53N, 78 25 48E, Magnetometer onboard checking

1244 SOL L04, 06 59 58N, 78 25 46E

16/11/2017 @0230 08 08 32N, 78 52 42E, SOG 6.6, COG 207, D 1639, WS 12, W moderate

0047 EOL L04, 08 07 30N, 78 53 45E

0152 SOL L05, 08 12 17N, 78 54 27E

1634 EOL L05, 06 59 58N, 78 24 25E

1702 SOL L06, 07 00 06N, 78 22 58E

17/11/2017 @0230 07 52 37N, 78 44 35E, SOG 6.5, COG16.4, D 1857, WS 12, W moderate

13

0718 SOL L06, 08 22 14N, 78 56 46E

0739 SOL L07, 08 23 01N, 78 55 43E

2301 EOL L07, 06 59 57N, 78 21 28E

2329 SOL L08, 06 59 57N, 78 20 00E

18/11/2017 @0230 07 18 08N, 78 27 30E, SOG 6.4, COG 12.9, D 2335, WS 12, W calm

0800 07 49 29N, 78 40 27E, Magnetometer onboard checking

1506 EOL L08, 08 28 48N, 78 56 40E

1556 SOL L09, 08 31 59N, 78 56 31E

2300 07 49 57N, 78 39 06E, Altered-fishing activity

19/11/2017 @0230 07 30 19N, 78 31 03E, SOG 5.8, COG 210, D 2084, WS 10 , W calm

0312 07 26 40N, 78 29 33E, Black out (0312-0624)

0656 07 28 11N, 78 30 18E, Started logging after restarting the power

1225 EOL L09, 06 59 28N, 78 18 21E

1245 SOL L10, 06 59 46N, 78 17 03E

1934 07 26 36N, 78 28 16E, Stopped for SVP, CTD/SVP onboard

2014 07 25 14N, 78 27 20E, Survey started after CTD (2)

20/11/2017 @0230 07 59 14N, 78 41 31E, SOG 5.4, COG 28.4, D 1664, WS 20, W moderate

0845 EOL L10, 08 32 27N, 78 55 14E

0903 SOL L11, 08 33 16N, 78 54 03E

1046 08 22 66N, 78 49 50E, Magnetometer onboard

1100 08 22 03N, 78 49 29E, Recording stopped for CTD

1120 Started CTD (3)

1214 CTD onboard

1241 08 22 31N, 78 49 39 E, Survey started after CTD (3)


0109 EOL L11, 06 59 14N, 78 15 20E

0138 SOL L12, 06 59 51N, 78 14 11E

1610 EOL L12, 08 33 32N, 78 52 44E

1631 SOL L13, 08 33 52N, 78 51 18E


0020 07 39 22 N, 78 28 54E, Helmsman restarted

14

0627 EOL L13, 06 59 32N, 78 12 30E

0645 SOL L14, 06 59 35N, 78 11 10E


0139 EOL L14, 08 34 42N, 78 50 02E

0155 SOL L15, 08 35 05N, 78 48 46E

1658 EOL L15, 07 59 31N, 78 09 34E

1720 SOL L16, 06 59 35N, 78 08 09E

1928 07 10 16N, 78 12 51E, Hydrostar crashed,

2016 joined on line L16, recording started

2040 07 10 01N, 78 12 25E, Magnetometer retrieved

2055 Magnetometer deployed


1401 EOL L16, 08 35 35N, 78 47 41E

1447 SOL L17, 08 37 33N, 78 44 04E

1603 EOL L17, 08 29 01N, 78 40 23E

1636 SOL L18, 08 27 20N, 78 41 16E

1830 EOL L18, 08 36 38N, 78 45 10E

1852 SOL L19, 08 35 53N, 78 46 20E

2127 07 55 19N, 78 32 59E, Magnetometer retrieved due to high traffic fishing

trollers


0400 07 35 48N, 78 21 43E, Helmsman’s display restarted

0250 Multibeam stopped fot CTD

0310 CTD deployed and retrieved due to winch problem

0406 CTD-4 deployed again upto 1250m

0511 CTD-4 onboard

0548 GC-1 Operation Started

0741 GC-1 onboard with sample

1021 EOL L19, 06 58 44N, 78 05 37E

1033 SOL L20, 06 59 24N, 78 05 07E


15

0013 EOL L20, 08 0151N, 78 28 02E

0015 SOL L21, 08 01 40N, 78 28 03E

0837 07 47 20N, 78 23 13E, After coring Magnetometer deployed

1425 07 10 37N, 78 08 09E, Helmsman’s display restarted

1600 EOL L21, 06 58 52N, 78 03 20E

1637 SOL L22, 06 59 03N, 78 02 17E


0310 EOL L22, 08 00 07N, 78 27 26E

0311 SOL J22, 08 00 16N, 78 27 28E

0330 SOL L23, 08 00 62N, 78 21 06E

1302 EOL L23, 06 58 47N, 78 00 52E

1317 SOL L24, 06 59 15N, 78 60 01E

2100 07 46 31N, 78 19 17E, Magnetometer onboard, track diversion

2355 EOL L24, 07 59 56N, 78 24 59E


0020 SOL L25, 08 00 47N, 78 24 07E

0132 07 53 07N, 78 21 00E, Magnetometer lowered & survey resumed

1004 EOL L25, 06 59 03N, 77 58 43E

1030 SOL L26, 06 58 41N, 77 57 27E

1318 07 13 35 N, 78 03 32E, Magnetometer onboard

1338 07 14 59N, 78 04 07E, Stopped for CTD/SVP operation

1358 CTD lowered

1545 CTD on deck

1618 07 14 17N, 78 03 49E, Survey started after CTD

29/11/2017 @0230 07 55 29N, 78 20 49E, SOG 3.9, COG 22.9, D 1023m , WS 35, W very

rough

0348 EOL L26, 08 00 05N, 78 22 43E

0410 SOL L27, 08 00 31N, 78 21 29E

1357 EOL L27, 06 59 29N, 77 56 33E

1424 SOL L28, 06 59 06N, 77 55 16E, magnetometer retrieved, MBES recording

stopped

30/11/2017 @0230 Survey suspended due to cyclone, SOG 2.5, COG 180, WS 45, W very rough

16

01/12/2017 @0230 Survey suspended due to cyclone, SOG 3.8, COG 335, WS 25, W vey rough

1337 06 55 28N, 77 56 49E, started MBES

1431 07 00 14N, 77 55 41E, Magnetometer deployed


0107 EOL L28, 08 00 01N, 78 20 18E

0123 SOL L29, 07 59 54N, 78 19 07E

1135 EOL L29, 06 59 10N, 77 54 04E

1155 SOL L30, 06 59 02N, 77 52 56E

2253 EOL L30, 07 59 54N, 78 17 56E

2324 SOL L31, 07 58 12N, 78 15 44E


0904 EOL L31, 06 58 55N, 77 51 38E

0923 SOL L32, 06 58 27N, 77 50 18E

1710 07 46 10N, 78 69 55E, Helmsman’s display system crashed

1852 EOL L32, 07 56 16N, 78 14 03E

1929 SOL L33, 07 54 15N, 78 12 39E


0419 EOL L33, 06 58 00N, 77 49 00E

0443 SOL L34, 06 58 51N, 77 48 00E

1215 Helmsman’s system display stopped

1225 Helmsman’s system display restarted

1237 EOL L34, 07 47 45N, 78 08 14E

1245 SOL L35, 07 46 46N, 78 07 42E

2029 EOL L35, 06 58 26N, 77 46 45E

2046 SOL L36, 06 58 41N, 77 46 00E


0300 EOL L36, 07 37 38N, 78 02 00E

. 0312 SOL L37, 07 38 07N, 78 01 23E

0925 EOL L37, 06 58 44N, 77 45 06E

0945 SOL L38, 06 58 38N, 77 44 13E

1047 07 04 41N, 77 46 41E, Vessel stopped for CTD, CTD on deck

17

1313 07 03 52N, 77 46 22E, L38 survey resumed after CTD operation

1825 EOL L38, 07 38 00N, 77 59 54E

1839 SOL L39, 07 36 58N, 77 59 22E

2221 Hydrostar& Helmsman crashed

2230 Hydrostar& Helmsman restarted


0224 EOL L39, 06 58 17N, 77 43 09E, Magnetometer onboard

0301 SOL PL01, 06 58 09N, 77 40 11E

0331 EOL PL01, 06 59 22N, 77 43 22E

0352 SOL PL02, 07 00 28N, 77 43 22E

0456 EOL PL02, 06 57 58N, 77 36 55E

0524 SOL PL03, 06 58 13N, 77 34 35E

0657 EOL PL03, 07 01 54 N, 77 44 21E

0738 SOL PL 05, 07 03 18N, 77 44 58E

0957 EOL PL04, 06 58 00N, 77 31 32E

1038 SOL PL05, 06 57 57N, 77 28 42E

1315 EOL PL05, 07 04 19N, 77 45 20E

1339 SOL PL06, 07 05 58N, 77 46 02E

1636 EOL PL06, 06 58 24N, 77 27 29E

1659 SOL PL07, 06 59 40N, 77 28 34E

1949 EOL PL07, 07 07 05N, 77 46 28E

2011 SOL PL08, 07 08 22N, 77 47 29E

2311 EOL PL08, 07 00 25N, 77 28 27E

2331 SOL PL09, 07 01 21N, 77 29 12E


0222 EOL PL09, 07 09 11N, 77 47 17E

0240 SOL PL10, 07 10 09N, 77 47 42E

0537 EOL PL10, 07 02 26N, 77 30 20E

0542 SOL PL11, 07 02 34N, 77 29 54E

0837 EOL PL11, 07 10 50N, 77 47 36E

0904 SOL PL12, 07 12 26N, 77 49 11E

18

1120 EOL PL12, 07 05 47N, 77 34 26E

1126 SOL PL13, 07 06 11N, 77 35 36E

1150 Helmsman’s display restarted

1344 EOL PL13, 07 13 29N, 77 49 25E

1354 SOL PL14, 07 14 12N, 77 49 10E

1442 EOL PL14, 07 11 22N.77 44 18E

1447 SOL PL15, 07 11 07N, 77 43 43E

1614 EOL PL15, 07 16 16N, 77 50 44E

1615 SOL PL16, 07 16 23N, 77 50 49E

2000 EOL PL16, 07 33 32N, 77 57 11E

2029 SOL CL01, 07 35 08N, 77 55 59E, Magnetometer deployed

08/12/2017 @0230 07 43 52N, 78 07 09E, SOG 6.6, COG 36.5, D 741.5, WS 10, W calm

0122 EOL CL01, 07 37 37N, 78 03 09E

0123 SOL PL17, 07 37 44N, 78 03 14E

0430 07 54 46N, 78 13 49E, Magnetometer deployed

0740 EOL PL17, 08 01 47N, 78 29 57E, Helmsman’s display hanged & restarted

the system

0750 SOL PL18, 08 01 30N, 78 30 16E

0905 EOL PL18, 07 54 08N, 78 26 40E

0907 SOL PL19, 07 54 06N, 78 26 27E

1056 EOL PL19, 07 59 47N, 78 15 28E

1100 SOL CL03, 07 59 31N, 78 15 35E

1706 EOL CL03, 07 39 33N, 78 48 09E

1708 SOL PL20, 07 39 29N, 78 48 05E

2254 EOL PL20, 07 06 51N, 78 35 45E

2255 SOL CL01a, 07 06 53N, 78 35 38E


0545 EOL CL01a, 07 34 41N, 77 57 32E

0546 SOL PL21, 07 34 47N, 77 57 30E

0747 EOL PL21, 07 43 43N, 78 05 52E

0754 SOL CL02, 07 43 51N, 78 06 19E

19

1524 EOL CL02, 07 01 02N, 78 30 54E

1540 SOL PL22, 07 00 34N, 78 30 05E

1830 Magnetometer onboard

1927 MB recording Stopped, EOL PL22, 06 58 42E, 78 07 48N

1927 Vessel Changed heading towards GC-2 location

10/12/2017 @0230 06 2900N, 78 4953E, SOG 7.8, COG 124, WS 15, W calm

11/12/2017 @0230 054131N, 805022E, SOG 4.7, COG 90, WS 10, W calm

12/12/2017 @0230 064550N, 820223E, SOG 5.0, COG 90, WS 10, W calm

13/12/2017 @0230 0848 54N, 8144 54E, SOG 5.8, COG 343, WS 10, W calm

14/12/2017 @0230 1112 50N, 810100E, SOG 6.2, COG 343, WS 10, W calm

0342 GC-2 deployed, 12 28 17N, 80 36 52E

0525 GC-2 onboard, Core barrel got bend

15/12/2017 @0230 13 06 09N, 80 20 45E, SOG 1, COG 343, WS 10, W calm

@0800 Ship berthed at Chennai port

End of the Cruise SK-343

2. CTD/SVP Data Collection

SVP/CTD Sl

No Date

Time

UTC Depth(m) Latitude Longitude

Filename/Folder

name

1 14.11.2017 06:56:27 2035 7°00'14" 78°27'49" SVP 01-

14112017

2 19.11.2017 17:59:27 1835 7°26'39" 78°28'16" SVP 02-

19112017

3 20.11.2017 11:21:51 1325 8°21'53" 78°49'12" SVP 03-

20112017

4 26.11.2017 04:08:05 1270 7°46'42" 78°22'21" SVP 04-

26112017

5 28.11.2017 14:02:06 1885 7°14'59" 78°04'00" SVP 05-

28112017

6 05.12.2017 11:06:51 1575 7°04'41" 77°46'41" SVP 06-

05122017

3. Gravity Core

Gravity Core

Sl No Date Time UTC Depth(m) Latitude Longitude Length of Core

(m)

GC-1 26.11.2017 0741 1340m 7°46'42" 78°22'21" 3.55

GC-2 14.12.2017 0525 947m 12°28'19" 80°36'52" 1.30

4. Logsheet

Line No

Start of Line End of Line

Date

Time

(UTC)

Depth

(m)

Latitude Longitude Filename Date

Time

(UTC)

Depth

(m)

Latitude Longitude Filename

SK341-

PL-01 11112017 1728 338 08 51 17 78 47 17

SK341-PL-01-

201711Nov173834 11112017 1900 881 08 42 50 78 45 08

SK341-PL-01-

201711Nov185353

SK341-

PL-02 11112017 1910 871 0842 04 7844 59

SK341-PL-02-

201711NOV191003 11112017 2131 523 084943 785706

SK341-PL-02-

201711NOV1212630

SK341-

PL-03 11112017 2151 469 085154 785620

SK341-PL-03-

201711NOV214658 11112017 2151 411 085200 785506

SK341-PL-03-

201711NOV215020

SK341-

PL-04 11112017 2214 432 085200 785224

SK341-PL-04-

201711NOV221406 11112017 2334 583 084704 784704

SK341-PL-04-

201711NOV232827

SK341-

PL-05 11112017 2342 608 084644 784704

SK341-PL-05-

201711NOV234214 11112017 0024 355 085113 784752

SK341-PL-05-

201711NOV002218

SK341-

PL-06 11112017 0152 416 085059 784839

SK341-PL-06-

201711NOV015128 11112017 0219 507 084859 784749

SK341-PL-06-

201711NOV021832

SK341-

PL-07 11112017 0233 484 084814 784755

SK341-PL-07-

201711NOV023307 11112017 0457 587 085621 790157

SK341-PL-07-

201711NOV045614

SK341-

PL-08 11112017 0500 599 085621 790209

SK341-PL-08-

201711NOV050023 12112017 0751 429 085527 792251

SK341-PL-08-

201712NOV074931

SK341-

PL-09 12112017 0810 386 085616 792227

SK341-PL-09-

201712NOV081018 12112017 1127 460 085710 790135

SK341-PL-09-

201712NOV111957

SK341-

PL-10 12112017 1139 366 085801 790186

SK341-PL-10-

201712NOV113930 12112017 1411 338 085716 792039

SK341-PL-10-

201712NOV141101

SK341-

PL-11 12112017 1420 252 085710 792139

SK341-PL-11-

201712NOV142043 12112017 1600 612 085002 792730

SK341-PL-11-

201712NOV155202

2

Line No


Date

Time

(UTC)

Depth

(m)


Time

(UTC)

Depth

(m)


SK341-

PL-12 12112017 1602 618 085003 792722

SK341-PL-12-

201712NOV160200 12112017 2230 1407 082730 790030

SK341-PL-12-

201712NOV221852

SK341-

PL-13 12112017 2238 1425 082518 785527

SK341-PL-13-

201712NOV223836 12112017 2255 1438 082403 785438

SK341-PL-13-

201712NOV225452

SK341-

PL-14 12112017 2308 1444 082345 785501

SK341-PL-14-

201712NOV230840 13112017 0422 799 084733 792526

SK341-PL-14-

201713NOV041926

SK341-

PL-15 13112017 0453 854 084549 792442

SK341-PL-15-

201713NOV045327 13112017 1153 1448 082225 785624

SK341-PL-15-

201713NOV114413

SK341-

PL-16 13112017 1157 1455 082209 785610

SK341-PL-16-

201713NOV115741 13112017 1706 1975 075446 785301

SK341-PL-16-

201713NOV170214

L01 13112017 1709 1975 075422 785254 SK343-L01-

201713NOV170853 14112017 0539 2528 070008 783023

SK343-L01-

201714NOV053416

L02 14112017 1007 2461 070000 782724 SK343-L02-

201714NOV 14112017 2238 1760 080313 785326

SK343-L02-

201714NOV223546

L03 14112017 2359 1885 075836 785307 SK343-L03-

201714NOV235957 15112017 1153 2500 070000 782853

SK343-L03-

201715NOV115355

L04 15112017 1244 2438 065958 782546 SK343-L04-

201715NOV124413 16112017 0047 1669 080730 785745

SK343-L04-

201716NOV004252

L05 16112017 0152 1633 081217 785427 SK343-L05-

201715NOV015211 16112017 1634 2424 065958 782425

SK343-L05-

201716NOV162733

L06 16112017 1702 2417 070006 782258 SK343-L06-

201716NOV170226 17112017 0718 1428 082214 785646

SK343-L06-

201717NOV071343

L07 17112017 0739 1450 082301 785543 SK343-L07-

201717NOV073903 17112017 2301 2412 065957 782128

SK343-L07-

201717NOV224821

L08 17112017 2329 2403 065957 782000 SK343-L08-

201717NOV232902 18112017 1506 1347 082848 785640

SK343-L08-

201718NOV145322

3

Line No


Date

Time

(UTC)

Depth

(m)


Time

(UTC)

Depth

(m)


L09 18112017 1556 1270 083159 785631 SK343-L09-

201718NOV155605 19112017 1225 2398 065928 781821

SK343-L09-

201719NOV121134

L10 19112017 1245 2390 065946 781703 SK343-L10-

201719NOV124516 20112017 0845 1267 083227 785514

SK343-L10-

201720NOV084404

L11 20112017 0903 1246 083316 785409 SK343-L11-

201720NOV090257 21112017 0109 2387 065914 781520

SK343-L11-

201721NOV005133

L12 21112017 0138 2374 065951 781411 SK343-L12-

201721NOV013835 21112017 1610 1243 083332 785244

SK343-L12-

201721NOV161112

L13 21112017 1631 1234 083352 785118 SK343-L13-

201721NOV163055 22112017 0627 2368 065932 781230

SK343-L13-

201722NOV060500

L14 22112017 0645 2357 065935 781110 SK343-L14-

201722NOV064547 23112017 0139 1220 083442 785002

SK343-L14-

201723NOV013139

L15 23112107 0155 1191 083505 784846 SK343-L15-

201723NOV015503 23112017 1658 2334 065931 780934

SK343-L15-

201723NOV164811

L16 23112017 1720 2315 065935 780809 SK343-L16-

201723NOV172002 24112017 1401 1162 083535 784741

SK343-L16-

201724NOV134916

L17 24112017 1447 1015 083733 784404 SK343-L17-

201724NOV144711 24112017 1603 1137 082901 784023

SK343-L17-

201724NOV154553

L18 24112017 1634 1206 082720 784116 SK343-L18-

201724NOV163609 24112017 1830 1047 083638 784510

SK343-L18-

201724NOV182030

L19 24112017 1852 1083 083553 784620 SK343-L19-

201724NOV185157 25112017 1021 2301 065844 780537

SK343-L19-

201725NOV101021

L20 25112017 1033 2275 065924 780507 SK343-L20-

201725NOV103411 26112017 0013 1214 080151 782802

SK343-L20-

201726NOV000331

L21 26112017 0015 1218 080140 782803 SK343-L21-

201726NOV001510 26112017 1600 2254 065852 780320

SK343-L21-

201726NOV160302

4

Line No


Date

Time

(UTC)

Depth

(m)


Time

(UTC)

Depth

(m)


L22 26112017 1637 2250 065903 780217 SK343-L22-

201726NOV163713 27112017 0310 1192 080007 782726

SK343-L22-

201727NOV030207

L23 27112017 0330 1141 080062 782106 SK343-L23-

201727NOV033030 27112017 1302 2227 065847 780052

SK343-L23-

201727NOV124638

L24 27112017 1317 2213 065915 780001 SK343-L24-

201727NOV131620 27112017 2355 1095 075956 782459

SK343-L24-

201727NOV235422

L25 28112017 0020 1041 080047 782407 SK343-L25-

201728NOV002010 28112017 1004 2176 065903 775843

SK343-L25-

201728NOV100415

L26 28112017 1030 2175 065841 775727 SK343-L26-

201728NOV102956 29112017 0348 998 080005 782243

SK343-L26-

201729NOV034449

L27 29112017 0410 929 080031 782129 SK343-L27-

201729NOV041012 29112017 1357 2118 065939 775633

SK343-L27-

201729NOV135247

L28 29112017 1424 2114 065906 775516 SK343-L28-

201729NOV142437 02122017 0107 830 080001 782018

SK343-L28-

201702DEC010341

L29 02122017 0123 752 075954 781907 SK343-L29-

201702DEC012255 02122017 1135 2077 065910 775404

SK343-L29-

201702DEC112457

L30 02122017 1155 2057 065902 775256 SK343-L30-

201702DEC115522 02122017 2253 658 075954 781756

SK343-L30-

201702DEC224843

L31 02122017 2324 472 075812 781544 SK343-L31-

201702DEC232443 03122017 0904 2043 065855 775138

SK343-L31-

201703DEC085629

L32 03122017 0923 2023 065827 775018 SK343-L32-

201703DEC092347 03122017 1852 289 075616 781403

SK343-L32-

201703DEC185158

L33 03122017 1929 255 075415 781239 SK343-L33-

201703DEC192948 04122017 0419 1934 065800 774900

SK343-L33-

201704DEC041924

L34 04122017 0443 1959 065851 774800 SK343-L34-

201704DEC044252 04122017 1237 155 074745 780814

SK34L34-

201704DEC123050

5

Line No


Date

Time

(UTC)

Depth

(m)


Time

(UTC)

Depth

(m)


L35 04122017 1245 182 074646 780742 SK343-L35-

201704DEC124507 04122017 2029 1937 065826 774645

SK343-L35-

201704DEC203007

L36 04122017 2046 1909 065841 774600 SK343-L36-

201704DEC204608 05122017 0300 245 073738 770200

SK343-L36-

201705DEC025606

L37 05122017 0312 158 073807 780123 SK343-L37-

201704DEC031248 05122017 0925 1903 065844 774506

SK343-L37-

201705DEC092006

L38 05122017 0945 1884 065838 774413 SK343-L38-

201705DEC054533 05122017 1825 132 073600 775959

SK343-L38-

201705DEC182150

L39 05122017 1839 265 073658 775922 Sk343-l39-

201705DEC183907 06122017 0224 1902 065817 774309

SK343-L39-

201706DEC021805

PL01 06122017 0301 1823 065809 774011 SK343-PL01-

201706DEC030057 06122017 0331 1835 065922 774322

SK343-PL01-

201706DEC031827

PL02 06122017 0352 1751 070028 774322 SK343-PL02-

201706DEC035121 06122017 0456 1655 065758 773655

SK343-PL02-

201706DEC044226

PL03 06122017 0524 1526 065813 773435 SK343-PL03-

201706DEC052420 06122017 0657 1684 070154 774421

SK343-PL03-

201706DEC061531

PL04 06122017 0738 1612 070318 774458 SK343-PL04-

201706DEC074020 06122017 0957 1417 065800 773132

SK343-PL04-

201706DEC095531

PL05 06122017 1033 1211 065757 772842 SK343-PL05-

201706DEC103409 06122017 1315 1556 070419 774520

SK343-PL05-

201706DEC130259

PL06 06122017 1339 1497 070558 774602 SK343-PL06-

201706DEC133918 06122017 1636 1040 065824 772729

SK343-PL06-

201706DEC162026

PL07 06122017 1659 843 065940 772834 SK343-PL06-

201706DEC165849 06122017 1949 1488 070705 774628

SK343-PL06-

201706DEC193519

PL08 06122017 2011 1493 070822 774729 SK343-PL08-

201706DEC201104 06122017 2311 576 070025 772827

SK343-PL08-

201706DEC230957

6

Line No


Date

Time

(UTC)

Depth

(m)


Time

(UTC)

Depth

(m)


PL09 06122017 2331 393 070121 772912 SK343-PL09-

201706DEC233043 07122017 0222 1292 070911 774717

SK343-PL09-

201707DEC021254

PL10 07122017 0247 1252 071009 774742 SK343-PL10-

201707DEC024033 07122017 0534 299 070226 773020

SK343-PL10-

201707DEC052938

PL11 07122017 0542 285 070234 772954 SK343-PL11-

201707DEC054228 07122017 0837 1260 071050 774736

SK343-PL11-

201707DEC082337

PL12 07122017 0904 1046 071226 774911 SK343-PL12-

201707DEC090421 07122017 1120 330 070547 773426

SK343-PL12-

201707DEC111622

PL13 07122017 1126 308 070611 773536 SK343-PL13-

201707DEC112729 07122017 1344 967 071329 774925

SK343-PL13-

201707DEC133538

PL14 07122017 1354 616 071412 774910 SK343-PL14-

201707DEC135428 07122017 1442 359 071122 774418

SK343-PL14-

201707DEC142845

PL15 07122017 1447 358 071107 774343 SK343-PL15-

201707DEC144718 07122017 1614 714 071616 775044

SK343-PL15-

201707DEC166823

PL16 07122017 1615 756 071623 775049 SK343-PL16-

201707DEC161652 07122017 2000 243 073332 775711

SK343-PL016-

201707DEC200429

PL17 08122017 0123 483 073744 780314 SK343-PL17-

201708DEC012336 08122017 0740 1284 080147 782957

SK343-PL17-

201708DEC073041

PL18 08122017 0750 1300 080130 783016 SK343-PL18-

201708DEC075006 08122017 0905 1286 075408 782640

SK343-PL18-

201708DEC085130

PL19 08122017 0907 1281 075406 782627 SK343-PL19-

201708DEC090715 08122017 1056 175 075947 781528

SK343-PL17-

201708DEC105340

CL03 08 12 2017 11 00 255 07 54 31 78 15 35 SK343-CL03-

201708DEC105749 08 12 2017 17 06 2119 07 39 33 78 48 09

SK343-CL03-

201708DEC165925

PL20 08 12 2017 17 08 2169 07 39 29 78 48 05 SK343-PL20-

201708DEC170814 08 12 2017 22 54 2439 07 06 51 78 35 45

SK343-PL20-

201708DEC225054

7

Line No


Date

Time

(UTC)

Depth

(m)


Time

(UTC)

Depth

(m)


CL01a 08 12 2017 22 55 2436 07 06 53 78 35 38 SK343-CL01a-

201708DEC225553 09 12 2017 05 45 294 07 3441 77 57 32

SK343-CL01a-

201709DEC054459

PL21 09 12 2017 05 46 256 07 34 47 77 57 32 SK343-PL21-

201709DEC054631 09 12 2017 07 47 403 07 43 43 78 05 52

SK343-PL21-

201709DEC074037

CL02 09 12 2017 07 54 277 07 43 51 78 06 19 SK343-PL21-

201709DEC075401 09 12 2017 15 24 2541 07 01 02 78 30 54

SK343-CL02-

201709DEC150757

PL22 09 12 2017 15 40 2531 07 00 34 78 30 05 SK343-PL22-

201709DEC154004 09 12 2017 19 27 2337 06 58 42 78 07 48

SK343-PL21-

201709DEC190836

(november 11th geo-scientific studies of the exclusive...

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