Results 11 to 20 of about 975,293 (105)

Acoustic twilight: A year‐long seafloor monitoring unveils phenological patterns in the abyssal soundscape

Limnology and Oceanography Letters
Despite the perpetual darkness of the deep sea, contrasting the sunlit epipelagic waters, many deep‐sea organisms exhibit rhythmic activities. To discern environmental cues that may serve as entrainment signals for deep‐sea organisms, this study ...
Tzu‐Hao Lin, Shinsuke Kawagucci
doaj   +2 more sources

Seamount larval dispersal networks: A potential strategy for conserving ecological connectivity from deep-sea mining. [PDF]

Ecol Appl
Abstract Seamounts are unique habitats in the deep sea facing anthropogenic stressors, including future deep‐sea mining. To conserve patchy marine habitats such as seamounts, it is critical to design conservation area networks that maintain connectivity by larval dispersal. This study conducted biophysical modeling to quantify larval dispersal among 18
Saito N, Kise H, Washburn TW, Ikeuchi E, Iguchi A, Kamoshida H, Suzuki A.   +6 more
europepmc   +2 more sources

Distribution of CO₂ in Western Pacific, Studied Using Isotope Data Made in Taiwan, OCO-2 Satellite Retrievals, and CarbonTracker Products. [PDF]

Earth Space Sci, 2018
Abstract To assess sources and processes that affect the variability of CO2 at local to regional scales, we have analyzed the mixing ratio [CO2] and stable isotopic compositions (δ13C and δ18O) of atmospheric CO2 for three years (2014–2016) in urban and sub‐urban areas in Taipei, Taiwan. The data are compared with those from some background sites, viz.,
Laskar AH, Lin LC, Jiang X, Liang MC.
europepmc   +2 more sources

Wave setup at the Minamitorishima tide gauge [PDF]

, 2022
A tide gauge situated on the western shore of Minamitorishima, a small atoll in the western Pacific, has measured sea levels significantly impacted by wave setup.
Philip L. Woodworth, Woodworth, Philip L., Richard D. Ray, Merrifield, Mark A., Ray, Richard D., Mark A. Merrifield   +5 more
core   +1 more source

Evaluation of a new JMA aircraft flask sampling system and laboratory trace gas analysis system [PDF]

Atmospheric Measurement Techniques, 2013
We established and evaluated a flask air sampling system on a cargo C-130H aircraft, as well as a trace gas measurement system for the flask samples, as part of a new operational monitoring program of the Japan Meteorological Agency (JMA).
K. Tsuboi, H. Matsueda, Y. Sawa, Y. Niwa, M. Nakamura, D. Kuboike, K. Saito, H. Ohmori, S. Iwatsubo, H. Nishi, Y. Hanamiya, K. Tsuji, Y. Baba   +12 more
doaj   +1 more source

High‐Dimensional Chemostratigraphy of Pelagic Clay in the Western North Pacific Ocean Revealed via an Unsupervised Clustering Approach

Paleoceanography and Paleoclimatology, Volume 38, Issue 7, July 2023., 2023
Abstract Pelagic clay constitutes massive and apparently uniform lithology that limits the stratigraphic correlation between neighboring sediment core samples. Recent studies on the pelagic clay in the western North Pacific Ocean demonstrated that the bulk chemical composition of sediments constitutes multielemental chemostratigraphy, deducing the ...
Kazutaka Yasukawa, Erika Tanaka, Takashi Miyazaki, Bogdan S. Vaglarov, Qing Chang, Kentaro Nakamura, Junichiro Ohta, Koichiro Fujinaga, Hikaru Iwamori, Yasuhiro Kato   +9 more
wiley   +1 more source

Rare‐Earth Elements in Deep‐Sea Sediments in the South Pacific Gyre: Source Materials and Resource Potentials

Geochemistry, Geophysics, Geosystems, Volume 24, Issue 3, March 2023., 2023
Abstract Deep‐sea sediments enriched in rare‐earth elements and yttrium (REY) plus scandium (Sc), termed “REY‐rich mud,” have attracted attention as a possible resource for these critical industrial elements. Examples have been reported from the western North Pacific, central Pacific, low‐latitude South Pacific, and eastern South Pacific.
Erika Tanaka, Kazuhide Mimura, Kentaro Nakamura, Junichiro Ohta, Kazutaka Yasukawa, Yasuhiro Kato   +5 more
wiley   +1 more source

K-feldspar enrichment in the Pacific pelagic sediments before Miocene

Progress in Earth and Planetary Science, 2023
The mineralogy of atmospheric silicate dust controls its interaction with clouds. K-feldspar has a remarkably high ice-nucleating activity, and its distribution may have influenced the global climate throughout Earth's history.
Yoichi Usui, Toshitsugu Yamazaki
doaj   +1 more source

Baseline soundscapes of deep‐sea habitats reveal heterogeneity among ecosystems and sensitivity to anthropogenic impacts

Limnology and Oceanography, Volume 66, Issue 10, Page 3714-3727, October 2021., 2021
Abstract Underwater soundscapes, though invisible, are crucial in shaping the biodiversity of marine ecosystems by acting as habitat‐specific settlement cues for larvae. The deep sea has received little attention in soundscape research, but it is being targeted for mineral extraction to feed the ever‐growing needs of our society.
Chong Chen, Tzu‐Hao Lin, Hiromi Kayama Watanabe, Tomonari Akamatsu, Shinsuke Kawagucci   +4 more
wiley   +1 more source

A Paleogene magmatic overprint on Cretaceous seamounts of the western Pacific

Island Arc, Volume 30, Issue 1, January/December 2021., 2021
Abstract The West Pacific Seamount Province (WPSP) represents a series of short‐lived Cretaceous hotspot tracks. However, no intraplate volcanoes in advance of petit‐spot volcanism erupted near a trench have been identified after the formation of the WPSP on the western Pacific Plate.
Naoto Hirano, Hirochika Sumino, Taisei Morishita, Shiki Machida, Takaomi Kawano, Kazutaka Yasukawa, Takafumi Hirata, Yasuhiro Kato, Teruaki Ishii   +8 more
wiley   +1 more source