Indian moored observatory in the Arctic for long-term in situ data collection

Venkatesan, R.; Krishnan, K. P.; Muthiah, M. Arul; Kesavakumar, Balakrishnan; Thresyamma, Divya David; Atmanand, M. A.; Rajan, S.; Ravichandran, M.

doi:10.1177/1759313116642898

Cited by 13 publications

(2 citation statements)

References 11 publications

(12 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The underwater ambient noise measurement system connected with IndArc mooring 39 was deployed in the Kongsfjorden (Fig. 4), Arctic Ocean, at an ocean depth of 198 m in July 2015.…”

Section: Methodsmentioning

confidence: 99%

“…To address these issues, we conducted the time series passive acoustic measurements at Kongsfjorden, an open fjord in the Arctic with both Atlantic and glacial influences, Svalbard 37,38 , for the period of 2015-2019, by deployment and maintenance of the autonomous ambient noise system as part of IndArc mooring system 39 . We have analyzed the interannual variability of ambient noise during the winter.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Underwater sound to probe sea ice melting in the Arctic during winter

Mahanty¹,

Latha²,

Venkatesan³

et al. 2020

Sci Rep

View full text Add to dashboard Cite

Over a 4-year period between 2015 and 2019, in-situ time series measurements of ocean ambient noise over the frequency range 100 Hz to 10 kHz, by an autonomous passive acoustic monitoring system have been made in the Kongsfjorden, Svalbard, Arctic. We characterize the noise due to sea ice melting during winter (December–January). This unique observation reveals loud noise signatures, of the order of 8 dB higher than the background noise, showing the signature of sea ice melting. Such observations are crucial for monitoring sea ice melting, especially during winter, to understand the recent warming of Arctic waters. The anomalous air temperature due to local atmospheric forcing and warming of ocean temperature in the fjord through ocean tunneling, individually or combinedly, is responsible for such sea ice melting. The cyclonic events in the Arctic are responsible for the anomalous atmospheric and ocean conditions, causing sea ice melting in winter.

show abstract

“…The underwater ambient noise measurement system connected with IndArc mooring 39 was deployed in the Kongsfjorden (Fig. 4), Arctic Ocean, at an ocean depth of 198 m in July 2015.…”

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%