Under-ice measurements of suspended particulate matters using ADCP and LISST-Holo

Ho Kyung Ha, Yong Hoon Kim, Hyun Jung Lee, Byongjun Hwang, Hyoung Min Joo

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Using a mooring package comprising an acoustic Doppler current profiler (ADCP) and holographic imaging system, a 1-day ice camp study was performed under the Arctic sea ice in the northern Chukchi Plateau to estimate vertical and temporal variations in total suspended particulate matter (SPM). In early August, the SPM in the upper mixed layer (~15 m and above) under sea ice reached up to about 100 mg l-1 even under the offshore regime. Results of both holographic and microscopic analyses showed that dominant constituents of this increased SPM were biogenic rather than lithogenic materials. Due to the highest melt and break-up rates of sea ice during the summertime, the export of particulate materials and ice algal communities embedded in the sea ice might significantly contribute to the increase in SPM. This study suggests that the combined effects of the increase in ice algal production and the decrease in ice and snow cover and multi-year sea ice extent could create favorable conditions for enhancing the concentration and flux of SPM during the summertime.

Original languageEnglish
Pages (from-to)97-108
Number of pages12
JournalOcean Science Journal
Volume50
Issue number1
DOIs
Publication statusPublished - 1 Mar 2015
Externally publishedYes

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Acoustic Doppler Current Profiler
suspended particulate matter
sea ice
ice
algal community
ice cover
snow cover
mixed layer
temporal variation
melt
plateau
material

Cite this

Ha, Ho Kyung ; Kim, Yong Hoon ; Lee, Hyun Jung ; Hwang, Byongjun ; Joo, Hyoung Min. / Under-ice measurements of suspended particulate matters using ADCP and LISST-Holo. In: Ocean Science Journal. 2015 ; Vol. 50, No. 1. pp. 97-108.
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Under-ice measurements of suspended particulate matters using ADCP and LISST-Holo. / Ha, Ho Kyung; Kim, Yong Hoon; Lee, Hyun Jung; Hwang, Byongjun; Joo, Hyoung Min.

In: Ocean Science Journal, Vol. 50, No. 1, 01.03.2015, p. 97-108.

Research output: Contribution to journalArticle

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