Search Results - "Hirawake, Toru"

Variability in spring phytoplankton blooms associated with ice retreat timing in the Pacific Arctic from 2003-2019 by Waga, Hisatomo, Eicken, Hajo, Hirawake, Toru, Fukamachi, Yasushi

“…The Arctic is experiencing rapid changes in sea-ice seasonality and extent, with significant consequences for primary production. With the importance of…”
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Distinctive spring phytoplankton bloom in the Bering Strait in 2018: A year of historically minimum sea ice extent by Kikuchi, Gennosuke, Abe, Hiroto, Hirawake, Toru, Sampei, Makoto

“…Under climate change, the Bering–Chukchi continental shelves have experienced drastic sea ice loss, breaking the minimum sea ice extent record in 2018. In this…”
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Impacts of Mesoscale Eddies on Phytoplankton Size Structure by Waga, Hisatomo, Hirawake, Toru, Ueno, Hiromichi

“…The impact of mesoscale eddies on phytoplankton communities attracts considerable research attention because phytoplankton play numerous roles in marine…”
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A review: iron and nutrient supply in the subarctic Pacific and its impact on phytoplankton production by Nishioka, Jun, Obata, Hajime, Hirawake, Toru, Kondo, Yoshiko, Yamashita, Youhei, Misumi, Kazuhiro, Yasuda, Ichiro

“…One of the most important breakthroughs in oceanography in the last 30 years was the discovery that iron (Fe) controls biological production as a…”
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Salinity regime of the northwestern Bering Sea shelf by Abe, Hiroto, Nomura, Daiki, Hirawake, Toru

“…•Salinity regime of northwestern Bering Sea shelf was investigated.•Bottom water was influenced by dense shelf water for high sea ice production year.•In low…”
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Recent change in benthic macrofaunal community composition in relation to physical forcing in the Pacific Arctic by Waga, Hisatomo, Hirawake, Toru, Grebmeier, Jacqueline M.

“…There is growing evidence that increased Pacific water transport into the Arctic affects the marine ecosystem. One of the theoretical predictions for a future…”
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Special section for second-generation global imager (SGLI) by Ishizaka, Joji, Hirawake, Toru, Toratani, Mitsuhiro, Frouin, Robert

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Changing Occurrences of Fall Blooms Associated With Variations in Phytoplankton Size Structure in the Pacific Arctic by Waga, Hisatomo, Hirawake, Toru

“…Phytoplankton blooms in the Pacific Arctic have been characterized as a huge single bloom in spring. However, several studies have reported recent increases in…”
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Seasonal pathways of the Tsugaru Warm Current revealed by high-frequency ocean radars by Yasui, Tomomi, Abe, Hiroto, Hirawake, Toru, Sasaki, Ken’ichi, Wakita, Masahide

“…Seasonal pathway of the Tsugaru Warm Current (TWC), coastal boundary current flowing eastward from the Sea of Japan to the North Pacific Ocean, is investigated…”
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Water mass distribution in the northern Bering and southern Chukchi seas using light absorption of chromophoric dissolved organic matter by Hirawake, Toru, Oida, Joji, Yamashita, Youhei, Waga, Hisatomo, Abe, Hiroto, Nishioka, Jun, Nomura, Daiki, Ueno, Hiromichi, Ooki, Atsushi

“…•Water masses were successfully classified using light absorption by CDOM.•The classification was even in a warmer year.•Anadyr Water with rich nitrate could…”
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Biogeochemical and physical linkages between the Arctic Ocean and Sub-Arctic Pacific through marginal seas by Nishioka, Jun, Yasuda, Ichiro, Hirawake, Toru, Nakamura, Tomohiro, Kondo, Yoshiko, Volkov, Yuri N.

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Impact of spatiotemporal variability in phytoplankton size structure on benthic macrofaunal distribution in the Pacific Arctic by Waga, Hisatomo, Hirawake, Toru, Fujiwara, Amane, Grebmeier, Jacqueline M., Saitoh, Sei-Ichi

“…The size structure of the phytoplankton community strongly affects energy flow through food webs; hence, monitoring the spatial and temporal dynamics of…”
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Distribution shifts of marine taxa in the Pacific Arctic under contemporary climate changes by Alabia, Irene D., Molinos, Jorge García, Saitoh, Sei-Ichi, Hirawake, Toru, Hirata, Takafumi, Mueter, Franz J.

“…Aim To investigate the species‐specific exposure and distributional responses of marine fish and invertebrate taxa to rapidly shifting climate in the Pacific…”
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Performance of primary production algorithm using absorption coefficient of phytoplankton in the Pacific Arctic by Futsuki, Ryosuke, Hirawake, Toru, Fujiwara, Amane, Waga, Hisatomo, Kikuchi, Takashi, Nishino, Shigeto, Isada, Tomonori, Suzuki, Koji, Watanabe, Yutaka W.

“…Light condition, day length, and amount of incident sunlight vary widely with season in the Arctic. Absorption-based primary production (PP) models incorporate…”
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Widespread distribution of allochthonous fluorescent dissolved organic matter in the intermediate water of the North Pacific by Yamashita, Youhei, Tosaka, Tetsu, Bamba, Rise, Kamezaki, Ryuichi, Goto, Shuji, Nishioka, Jun, Yasuda, Ichiro, Hirawake, Toru, Oida, Joji, Obata, Hajime, Ogawa, Hiroshi

“…•Refractory FDOM can help determine the origin and mixing of intermediate water.•Source of allochthonous FDOM was shelf sediments of the Sea of…”
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Performance of JAXA’s SGLI standard ocean color products for oceanic to coastal waters: chlorophyll a concentration and light absorption coefficients of colored dissolved organic matter by Matsuoka, Atsushi, Campbell, Janet W., Hooker, Stanford B., Steinmetz, François, Ogata, Kazunori, Hirata, Takafumi, Higa, Hiroto, Kuwahara, Victor S., Isada, Tomonori, Suzuki, Koji, Hirawake, Toru, Ishizaka, Joji, Murakami, Hiroshi

“…We present the performance of JAXA’s SGLI standard algorithms for estimating chlorophyll a (chl a) concentration and the light absorption coefcients of colored…”
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Iron and nutrient dynamics along the East Kamchatka Current, western Bering Sea Basin and Gulf of Anadyr by Nishioka, Jun, Hirawake, Toru, Nomura, Daiki, Yamashita, Youhei, Ono, Kazuya, Murayama, Aiko, Shcherbinin, Alexey, Volkov, Yuri N., Mitsudera, Humio, Ebuchi, Naoto, Wakatsuchi, Masaaki, Yasuda, Ichiro

“…•We revealed the water chemical properties in the Kamchatka Basin in the western Bering Sea.•Decoupling of Si from N and P in the intermediate water occurred,…”
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Inter-comparison of phytoplankton functional type phenology metrics derived from ocean color algorithms and Earth System Models by Kostadinov, Tihomir S., Cabré, Anna, Vedantham, Harish, Marinov, Irina, Bracher, Astrid, Brewin, Robert J.W., Bricaud, Annick, Hirata, Takafumi, Hirawake, Toru, Hardman-Mountford, Nick J., Mouw, Colleen, Roy, Shovonlal, Uitz, Julia

“…Ocean color remote sensing of chlorophyll concentration has revolutionized our understanding of the biology of the oceans. However, a comprehensive…”
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Year-to-year changes of the mesozooplankton community in the Chukchi Sea during summers of 1991, 1992 and 2007, 2008 by Matsuno, Kohei, Yamaguchi, Atsushi, Hirawake, Toru, Imai, Ichiro

“…A recent drastic decrease in sea ice cover area was observed in the western Arctic Ocean during summer, yet little information is available for its effect on…”
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Observations of anticyclonic eddies in the western subarctic North Pacific by Dobashi, Ryo, Ueno, Hiromichi, Okada, Yuki, Tanaka, Takahiro, Nishioka, Jun, Hirawake, Toru, Ooki, Atushi, Itoh, Sachihiko, Hasegawa, Daisuke, Sasai, Yoshikazu, Sasaki, Hideharu, Yasuda, Ichiro

“…We conducted a ship observation of two anticyclonic mesoscale eddies (Eddies A and B) between June and July 2016 in the offshore region of the western…”
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