(26 august 2019 to 28 september 2019) geo-scientific...

357 ORV- Sagar Kanya

SK-361 Cruise Report (26 August 2019 to 28 September 2019)

Geo-scientific Studies of the Exclusive Economic Zone

NATIONAL CENTRE FOR POLAR AND OCEAN RESEARCH

HEADLAND SADA, VASCO-DA-GAMA (GOA)-403804

Contents

1. INTRODUCTION __________________________________________________________________ 3

2. CRUISE ITERNERY ________________________________________________________________ 5

3. LIST OF PARTICIPANTS ____________________________________________________________ 5

4. SCOPE OF WORK __________________________________________________________________ 5

5. METHODOLOGY AND SURVEY EQUIPMENTS _________________________________________ 6

6. SCIENTIFICOBSERVATIONS _______________________________________________________ 12

7. ACKNOWLEDGEMENT ____________________________________________________________ 13

8. CRUISE DATA DETAILS ______________________________________________________________ 14

9. ISSUES AND SUGGESTIONS __________________________________________________________ 14

10. ANNEXURE ______________________________________________________________________ 15

A) DIARY OF EVENTS _______________________________________________________________ 15 B) CTD/SVP DATA COLLECTION ______________________________________________________ 19 C) LOGSHEET ____________________________________________________________________ 20

Figures

FIGURE 1 INDIAN EEZ MAP WITH THE SATELLITE BATHYMETRY DATA AND COSTAL LINE OF INDIA ________________ 4 FIGURE 2 CRUISE PLAN OF THE BATHYMETRY SURVEY ________________________________________________ 6 FIGURE 3 SKETCH DIAGRAM SHOWS THE CTD CAST WITH DEPLOYMENT UNIT ______________________________ 10 FIGURE 4 CESIUM MAGNETO METER ___________________________________________________________ 10 FIGURE 5 MAGNETIC DATA ACQUISITION USING MAGLOG SOFTWARE ____________________________________ 11 FIGURE 6 BATHYMETRIC MAP OF BLOCK-B10 ____________________________________________________ 13

SK361 2019

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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). 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:

a) Fishermen for fishing operations using deep trawl or bottom fishing gear

b) Petroleum, natural gas and mineral exploration as well as exploitation

c) Development and assessment of mineral resources

d) Telecommunication industry for lying cables

e) Sub-sea pipe lines for geological hazard assessment

f) Effective disposal of waste and reducing pollutants

g) 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 km2 along

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

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 Polar and Ocean

Research (NCPOR), Goa has been appointed as the nodal agency for the implementation

of this programme.

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

2. CRUISE ITERNERY

The scientific team for multibeam survey in north of Bay of Bengal within the EEZ of

India; embarked onboard the vessel at Chennai Port on 26th August 2019. After

completion of the survey, vessel reached Chennai port on 28th September 2019.

Departure : Chennai Port, 01.09.2019

Arrival : Chennai Port, 28.09.2019

3. LIST OF PARTICIPANTS

1 Dr. Twinkle Damodharan NCPOR Chief Scientist 2 Mr. Shailesh Kumar Yadhav -do- Shipboard Asst. 3 Mr. Aaditya Nath Kapil CUSAT MSc Student 4 Miss. Akshara Shaila -do- -do- 5 Miss. Christeena Mariam Babu -do- -do- 6 Miss. Divya Anilkumar Sreelatha -do- -do- 7 Miss. Mr. Likhit Pothumarthi -do- -do- 8 Mr. Pranav Seena Prem -do- -do- 9 Miss. Remisha Rajeevan -do- -do-

10 Mrs. Sayyida Rasala H Thakyavil A -do- -do- 11 Miss. Sisira Baburaj -do- -do- 12 Miss. Sruthi Krishnan Mayadevi -do- -do- 13 Miss. Sulika Suresh Babu -do- -do- 14 Miss. Swathi Manakulamparambil -do- -do- 15 Mr. Shijin Kaiprath Kundakklal -do- -do-

16 Mr. Varaha V S Gadi Andhra University -do-

17 Mr. Venkatasaikiran Daliparthi -do- MSc-Tech 19 Mr. P. Boopathy NORINCO AMC-Service Engineer 20 Mr. G. Mahadevan -do- -do- 21 Mr. R.Prakash -do- -do- 22 Mr. M.Muthukumar -do- -do-

4. SCOPE OF WORK

The primary objective of the SK-361 cruise was to undertake multibeambathymetry and

Magnetometer survey in north of Bay of Bengal within the EEZ of India and to conduct

CTD/SVP cast at different locations within survey area. Figure. 1 shows the location map

with vessel tracks prepared for the bathymetry data acquisition. Total area covered 16023

km2 and with track line length of 5004 km during SK-361. In this around 3771 km data

took in the B-10 block with area of 11703 km2 and collected 1232 km data along the patch

line of B7 block with an area of 4320km2

Figure 2 Cruise plan of the bathymetry survey

5. METHODOLOGY AND SURVEY EQUIPMENTS

5.1 Methodology : The Multibeam survey was carried out using standard survey practices.Survey lines

were planned parallel to the general bathymetric contour were run in NE-WS trend.

The tracklines were planned in order to obtain about 80-100% overlap at average

speed of 5.5-6.2 knots. Navigational and attitude information is provided by C-NAV

DGPS system. Ship track was maintained within ±30 m.

5.2 Equipment details: 5.2.1 SeaBeam-3012 MultibeamEchosounder System:

SeaBeam-3012 MultibeamEchosounder onboard ORV-SagarKanya was utilised to carry

out the surveys in Andaman region ANI1 block. The SB-3012 is a 12 kHz; 209 beam

sonar system; has a beam width of 2° at nadir and is capable of measuring depths

ranging from 200 m to 11000 m. 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 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.

TECHNICAL SPECIFICATION SB-3012 MBES SYSTEM

Manufacturer L3-Communications Elac-Nautik GmbH; Germany

Number of active Beams 161 Swath Angle 120° Spacing Method Equi-angle Operating Frequency 12 kHz Power -3.00 dB Acquisition Software Hydrostar 3.5.8 Processing Software CARIS HIPS and SIPS VESSEL OFFSETS Navigation Sensor

X -1.6m Y -35.00m Z -14.6m

Motion Sensor X -1.27m Y -5.5m Z 3.11m

MBES (Hydrophone) X 0m Y 0m Z 5.3m

Roll 0.12° Pitch 0° Yaw 0°

MBES (Projector) X 0m Y 5.25m Z 5.3m

Roll 0° Pitch 0.52° Yaw -0.25°

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

derived using SVP 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

3300meters.The sketch diagram of deployment of CTD as shown in figure 3

Figure 3 Sketch diagram 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 4 Cesium magneto meter

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 LiteTMsoftware is as follows:

Figure 5 Magnetic data acquisition using Maglog software

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

in nanotesla (nT).

6. SCIENTIFICOBSERVATIONS a. During the cruise;the MB data was processed with CARIS and Mapped.

b. SVP profile have taken in 8 locations.

Figure 6 Bathymetric map of Block-B10

7. ACKNOWLEDGEMENT The whole team of SK-361 place on record their deep sense of gratitude to Director;

National Centre for Polar and Ocean Research, for assigning responsibilities for EEZ

survey cruise.Team is also thankful to Dr.John Kurian P, Mr.AbhishekTyagi and Mr. M. M.

Subramaniam for their support for the success of SK-361 cruise. The support and co-

operation rendered by NORINCO personnel is specially appreciated.The Scientific team

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

cruise.

8. CRUISE DATA DETAILS

SK

361

Raw Data

MBES 16703 Files, 3 Folders 34.8 GB Magnetometer 257 Files 539 MB

CTD 36 Files 71.6MB SSS 198 Files, 26 Folders 3.82 GB

ADCP 496 Files 4.79 GB TSG 84 files 333KB

DSES 37 files 765MB

SK361 LOG 83KB

Processed Data

MBES 297572 Files, 7858 Folders 11.2 GB

TSG 28 Files 953 KB

CTD 33 Files, 3 Folders 113 MB

Report SK-361 Report 1 Files 14.5 MB

SK-361 Student Report 1 Files 93.2 MB

Total 315448 Files, 7903

Folders 56.2 GB

9. ISSUES AND SUGGESTIONS ü Performance of MBES navigation computer has been interrupted many times

during the survey. It is recommended to upgrade/replace the system. ü Magnetic field values in magnetometer readings was fluctuating during NW-SE

direction and repeated the magnetometer survey on the same line where we got correct data. But the same issue remained. That is the the reading was inconsistent It’s recommended to consult OEM/Service providers to solve this issue.

ü Cable pay-out counter in Deep Sea winch is not working properly. It needs immediate inspection by expertise since it is mandatory for deep sediment sampling operations.

10. ANNEXURE

a) DIARY OF EVENTS

Date Time Events [Lat/Long - ddmmss; SOG- Speed Over Ground(knots); COG- Course Over Ground(); D-Depth(m); WS- Wind Speed (knots); W- Weather]

Transit to B1 Block. Vessel functioning and multibeam settings checked. 26/8//2019-3108/2019

Chennai Port, Delay in sailing

01/09/2019 1845 Sailed out for the EEZ mapping (SK-361) from Chennai port. 2031 SOL PL-1 2048 Magnetometer deployed

02/09/2019

@02:30 12 33 52 N; 81 03 12 E; SOG 4.8; COG 191; 3349; WS 19; W Moderate 0430 Magnetometer retrieved, stopped for CTD-1 0455 CTD/SVP-01 deployed 0800 CTD/SVP-01 onboard 0920 MBES started recording 0923 Magnetometer deployed

03/12/2018 @02:30 11 08 44 N; 81 03 17 E; SOG 4.3; COG 186; 3349; WS 25; W Moderate 0850 EOL PL-1 0948 SOL PL-2

04/09/2019

@02:30 11 58 34 N ;81 05 41 E; SOG 4.8; COG 355; 3349; WS 25; W Moderate 1600 EOL PL-02 1605 Magnetometer onboard 1818 SOL PL-03 2221 EOL PL-03

05/09/2019 @02:30 15 27 54 N ;84 37.34 E; SOG 8.8; COG 52;D 3349; WS 2; W Moderate

Transit to PL-04

06/09/2018 @02:30 15 27 54 N ;84 37.34 E; SOG 8.8; COG 52;D 3349; WS 2; W Moderate 0830 SOL PL-04

07/09/2018

@02:30 16 49 18 N ;86 08 11 E; SOG 4.6; COG 44; D 3364; WS 23; W Very rough 1130 EOL PL04 1205 SOL GC01, transit to GC1 1417 EOL_GC01 (Due to heavy wind speed)

08/09/2019

@02:30 17 24 45, 85 43 13, ; SOG 4.1; COG 279;D 2750; WS 20; W Moderate 0648 SOL_GC01 0700 Magnetometer Deployed 2000 Navigation system automatically restarted

09/09/2019

@02:30 17 40.73 N;083 49.42 E; SOG 5.2; COG 279; D 1100; WS 20; W Moderate 2349 Magnetometer onboard 0048 SSS deployed 0200 SSS onboard 0242 GC 1 Started 0308 GC -1 onboard (No sample) 0325 GC-1 in tried in different location

(DSW got stuck, operation aborted) 0448 Sol SSS-L1


1107 Eol SSS -L1 1117 Sol SSS-L2 1407 Eol SSS –L2 1410 Sol SSS –L3 1730 Eol SSS –L3 1740 Sol SSS –L4 2045 Eol SSS –L4

10/09/2019 @02:30 17 44.86 N;084 30.98 E; SOG 6; COG 94;; WS 20; W Moderate Transit to B10 Block

11/09/2019

@02:30 17 29.85 N, 088 43.39 E; SOG 8.4; COG 94; D 2312; WS 20; W Moderate 0915 Sol-JL01-B10 0947 Eol-B10-JL01 0949 Sol-B10-L01, Magnetometer deployed 1728 Hydrostar stopped 1741 Hydrostar application restarted and survey restarted 2050 Ship returned to the position B10-L01 after restarting MB system

12/09/2019

@02:30 18 17 40 N; 089 33 3 E; SOG 5.5; COG 45; D 2060;WS 24; W Moderate 0105 Eol-B10-L01 0130 Sol-B10-JL02 0335 Eol-B10-JL02 0337 Sol-B10-L02 0630 CTD Deployed 0815 CTD onboard 0940 Magnetometer deployed 0945 Sol B10-L1 1630 Navigation system automatically restarted 1817 Eol-B10-L02 1819 Sol-B10-JL03 1845 Eol-B10-L03 1847 Sol-B10-L03 2004 Navigation system automatically shut down 2010 Navigation system automatically restarted

13/09/2019

@02:30 17 59 30 N, 089 10 30 E; SOG 5.2; COG 44; D 2137; WS 20; W Moderate 0600 Magnetometer retrieved 0713 CTD2 started 0850 CTD2 finished 1026 Returned to runline B10-L03 after CTD completed 1350 Eol-B10-L03 Hydrostar system software closed automatically 15:04 EOL-JLO4 15:11 SOL-B10-L04

14/09/2019

@02:30 18 01.41 N 089 08.9 E; SOG 5.6; COG 0; D 2200; WS 18 ; W Moderate 0030 Hydrostar system stopped 0334 Restored hydrostar system. 0933 Navigation display automatically closed and back in position


1008 Navigation display automatically closed and back in position 1245 EOL_B10_L04 1247 SOL_B10_JL05 1311 EOL_B10_JL05 1312 SOL_B10_L05 1451 Navigation system automatically restarted

15/09/2019

@02:30 18 18.10 N;089 25.38 E; SOG 5.5; COG 46; D 2111; WS 6; W Slight 0516 Vessel stopped for PM4 trial, MB system stopped 0548 MB system started 0700 EOL_B10_L05 0800 SOL_B10_JL06 0803 EOL_B10_JL06 0805 SOL_B10_L06 0823 Navigation system automatically restarted 0828 Navigation system automatically restarted

16/09/2019

@02:30 17 40.16 N; 88 40.07 E; SOG 5.5; COG 49;D 2329; WS 6; W Slight 0048 EOL_B10_L06 0053 SOL_B10_JL07 0117 EOL_B10_JL07 0117 SOL_B10_L07 0630 Magnetometer onboard 0735 CTD- 3 Deployed 0956 CTD-3 retrieved 1000 Magnetometer deployed 1030 Returned to the position L07 2020 Navigation system automatically closed 2300 EOL_L07 2304 SOL_JL08

17/09/2019

@02:30 18 40 37 N; 89 41 10 E; SOG 5.4; COG 223.5;D 1973; WS 6; W Slight 1700 Navigation display restarted 1900 EOL_B10_L08 1904 SOL B10_JL09 1934 EO JL09 1935 SO L09

18/09/2019

@02:30 17 55 18 N; 89 02 54 E; SOG 5.8; COG 180; D 2147; WS 12; W Slight 1030 Magnetpmeter retrieved 1054 CTD deployed at 16:20 1237 CTD Onboard 1300 Magnetometer deployed @18:20 1655 EOL_B10_L09 1659 SOL_B10_JL10 1830 EOL_B10_JL10 1831 SOL_B10_L10

19/09/2019 @02:30 18 26 38 N; 89 19 38 E; SOG 5.7; COG226; D 2085; WS 14; W Slight


0300 Navigation system automatically restarted 0830 Navigation display system restarted and back to position 1100 Magnetometer retrieved 1657 CTD deployed 1807 CTD retrieved 1830 Magnetometer deployed 1728 EOL_L10 1730 SOL_JL11 1803 EOL_JL11 1804 SOL_B10_L11 2130 Line navigation automatically restarted and back to position

20/09/2019

@02:30 18 16 39N; 89 05 42 E; SOG 6; COG 46;D 2073;WS 10; W Moderate 1400 EOL_B10_L11 1401 SOL_B10_JL12 1427 EOL_B10_JL12 1431 SOL_B10_L12 / Navigation system automatically restarted

21/09/2019

@02:30 18 15 42 N;89 01 33 E; SOG 4.4; COG 0;D 3153;WS 4; W Moderate 0130 Navigation PC automatically restarted at 1.19 1043 EOL_B10_L12 1044 SOL_B10_JL13 1115 EOL_B10_JL13 1116 SOL_B10_L13

22/09/2019

@02:30 18 47 32 N; 89 32 38 E; SOG 4.8; COG 46; D 1907; WS 11; W Slight 0530 Navigation system automatically restarted 0708 EOL_B10_L13 0709 SOL_B10_JL14 0746 EOL_B10_JL14 0749 SOL_B10_L14

23/09/2019

@02:30 19 74 N, 089 40.45 E; SOG 6.1; COG 226;D 3394;WS 12; W slight 0357 EOL_B10_L14 0359 SOL_B10_JL15 1230 CTD started 1300 CTD retrieved 1530 Magnetometer deployed 1600 Navigation system automatically stopped and restarted 1830 Navigation system automatically stopped and restarted 2200 Navigation system automatically stopped and restarted 2312 Navigation system automatically stopped and restarted

24/09/2019

@02:30 19 00.74 N, 089 40.45 E; SOG 6.1; COG 46;D 3609;WS 23; W Rough 0448 EOL_B10_L15 0450 SOL_B10_JL16 0542 EOL_B10_JL16 0542 SOL_B10_L16 0900 Magnetometer retrieved


0930 CTD deployed 1108 CTD onboard 1108 Magnetometer deployed. 1230 Navigation display restarted at 12:38

25/09/2019

@02:30 17 49.12 N, 088 19.78 E, SOG 6.5; COG 226;D 3609;WS 18; W Moderate 0221 EOL_B10_L16 0223 SOL_CL01 0230 Magnetometer retrieved 0700 Magnetometer deployed 0722 Navigation system restarted 1600 End of survey, Vessel heading towards Chennai Port

26/09/2019

@02:30 16 48 42 N; 87 18 41 E; SOG 7.3; COG 238;D 3405;WS 18; W Moderate Transit To Chennai Port

27/09/2019

@02:30 15 07 43 N; 084 16 19 E, SOG 7.1; COG 242;D 3405;WS 15; W Slight Transit To Chennai Port

28/09/2019

@02:30 15 54 08N; 81 53 26 E; SOG 8.7; COG 242;WS 10; W Slight Vessel berthed at outer anchorage , Chennai @ 1930hrs

b) CTD/SVP DATA COLLECTION

Sl No Date Time

(hh:mm) Station

Depth (m) Deployed Depth (m)

Latitude (dd mm)

Longitude (dd mm) Filename

1 02.09.2019 10:24 3353 3000 12° 25.70 ’ 81° 03.16 ’ SK361_PL01

2 11.09.2019 12:09 2341 2100 17° 29.91 ’ 88° 43.47 ’ SK361_B10_L1

3 13.09.2019 12:41 2221 2000 18 °15.89 ’ 89° 27.86 ’ SK361_B10_L03

4 16.09.2019 13:04 2202 2000 17° 57.89 ’ 88° 59.00 ’ SK361_B10_L07

5 18.09.2019 16:20 1993 1800 18° 40.70 ’ 89° 37.87 ’ SK361_B10_L09

6 19.09.2019 16:55 2265 2025 17° 52.52 ’ 88° 42.37 ’ SK361_B10_L10

7 23.09.2019 18:15 2302 1900 18° 19.42 ’ 88° 55.33 ’ SK361_B10_L15

8 24.09.2019 15:09 1875 1700 18v 57.37’ 89° 33.28 ’ SK361_B10_L16

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c) LOGSHEET

Line No

Start of Line End of Line

Date Time (UTC)

Latitude (N)

Longitude (E)

Depth (m) Filename (*.xse) Date Time

(UTC) Latitude

(N) Longitude

(E) Depth

(m) Filename (*.xse)

PL-01 1-Sep-19 20:31 13°01'50"N 81°03'09"E 3386 PL01_201901Sep203107 3-Sep-19 08:50 10⁰35'49"N 81⁰03'08"E 3535 PL01_201903sep085044

PL-02 3-Sep-19 09:48 10⁰40'31"N 81⁰05'47"E 3579 SK361_PL02_201903Sep0948 4-Sep-19 15:30 12⁰59'32"N 81⁰05'30"E 3386 SK361_PL02_201904Sep155937



L-01 11-Sep-19 09:49 17⁰29'23"N 88⁰42'51"E 2341 SK361_B10_L01_201911Sep094934 12-Sep-19 01:05 18⁰12'06"N 89⁰29'01"E 2096 SK361_B10_L01_201911Sep010614













Line No

Start of Line End of Line

Date Time (UTC)

Latitude (N)

Longitude (E)

Depth (m) Filename (*.xse) Date Time

(UTC) Latitude

(N) Longitude

(E) Depth

(m) Filename (*.xse)




CL-01 25-Sep-19 2:23 18⁰09'24"N

88⁰39'59"E 2004 SK361_B10_CL01_201925Sep022308 25-Sep-19 16:00 17⁰34'57N 88⁰33'56''E 2374 SK361_B10_CL01_201925Sep160338

(26 august 2019 to 28 september 2019) geo-scientific...

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