13
• IndARC III mooring was deployed with 7 CTD, 1 DO, Ambient Noise
Measurement System with two hydrophones, 2 PAR (Photosynthetically Active
Radiation) sensor, 2 FLNTUS (Fluorescence and Turbidly) sensor, 1 SPCM, 1
SUNA, 1 ADCP-300  kHz, Tandem Acoustic release and Argos Beacons. The
pCO 2 (Hydro C) sensor of NPI was deployed along with the mooring. IndARC
IV mooring was deployed with 7 CTD, 2 DO, Ambient Noise Measurement
System with two hydrophones, 2 PAR (Photosynthetically Active Radiation)
sensor, 2 FLNTUS (Fluorescence and Turbidly) sensor, 2 SPCM, 1 SUNA, 1
ADCP- 300 kHz, Tandem Acoustic release, Argos Beacons and underwater camera system.
The Table  1 given below summarises the details of operations with regard to
IndARC mooring, and the deployment/retrieval of IndARC system were accomplished availing the vessel RV Lance provided by Norwegian Polar Institute.
Fig. 1 IndARC deployment location
Table 1 Operational details of the IndARC moorings
System
Deployed
Retrieved
Days
IndARC I
23rd July 2014
15th July 2015
357
IndARC II
19th July 2015
26th July 2016
373
IndARC III
27th July 2016
19th July 2017
357
IndARC IV
22nd July 2017
Continuing
Indian Arctic Multisensory Moored Underwater Observatory