| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2020-06-24 |
| タイトル |
|
|
タイトル |
Nearfield measurements of ice melting noise in the central Arctic Ocean in summer |
| タイトル |
|
|
タイトル |
Nearfield measurements of ice melting noise in the central Arctic Ocean in summer |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Ice melting noise |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Bubble clouds |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Air temperature |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Summer |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Central arctic ocean |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
metadata only access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
| 著者 |
Wen, Hongtao
Yang, Yanming
Ruan, Hailin
Zhou, Hongtao
Wang, Ning
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Sea ice melting is very common in Arctic summer, so it is important to study ice melting noise. This paper analyzes a 456 min time series of under-ice noise that was recorded at a depth of 29.9 m in the central Arctic Ocean when the area was approximately 89% ice cover, UTC time, on August 8th, 2017. When the air temperature was higher than the freezing point of the surface sea water, the under-ice noise levels increased. In particular, the noise levels at 80–240 Hz and 380–660 Hz had two broad peaks and increased by 5–15 dB, furthermore, there was a large number of transient signals in the noise data. When the air temperature decreased and was less than the freezing point of the surface sea water, the under-ice noise levels gradually decreased, the broad peaks of the under-ice noise levels gradually disappeared, and the transient signals also disappeared. At the above two frequency bands, the correlation coefficients between the air temperature and under-ice noise levels were generally above 0.5 and reached a maximum value of 0.81. These results suggest that the changes in the under-ice noise levels could be attributed to sea ice melting. |
| 書誌情報 |
en : Polar Science
巻 24,
p. 100528,
発行日 2020-06
|
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
18739652 |
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1016/j.polar.2020.100528 |
|
|
関連名称 |
10.1016/j.polar.2020.100528 |
