Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Naoko Nagatsuka"'
Autor:
Yukihiko Onuma, Nozomu Takeuchi, Jun Uetake, Masashi Niwano, Sota Tanaka, Naoko Nagatsuka, Teruo Aoki
Publikováno v:
Journal of Glaciology, Vol 69, Pp 487-499 (2023)
Glacier phototroph blooms on the surfaces of ice sheets and glaciers cause albedo reduction, leading to increased melting rates. We observed seasonal changes in the abundance of phototrophs on the Qaanaaq Ice Cap in northwestern Greenland from June t
Externí odkaz:
https://doaj.org/article/d4d7b9a459084950983a8f150447a72c
Publikováno v:
Annals of Glaciology, Vol 59, Pp 147-158 (2018)
To understand the geological origins of minerals in cryoconite and the nutrients sources for microbes on glaciers, we analyzed the Sr–Nd isotopic ratios of the four mineral fractions in cryoconites including saline, carbonate, phosphate, silicate a
Externí odkaz:
https://doaj.org/article/55d9e5b61de94c9898e12bb3adaea084
Autor:
Nozomu Takeuchi, Ryutaro Sakaki, Jun Uetake, Naoko Nagatsuka, Rigen Shimada, Masashi Niwano, Teruo Aoki
Publikováno v:
Annals of Glaciology, Vol 59, Pp 21-30 (2018)
Cryoconite holes are water-filled cylindrical holes formed on ablation ice surfaces and commonly observed on glaciers worldwide. Temporal changes of cryoconite holes characteristically
Externí odkaz:
https://doaj.org/article/5ece8e17581d4ccaba9c3c0c2afd7731
Autor:
Naoko Nagatsuka, Nozomu Takeuchi, Jun Uetake, Rigen Shimada, Yukihiko Onuma, Sota Tanaka, Takanori Nakano
Publikováno v:
Frontiers in Earth Science, Vol 4 (2016)
In order to better understand the source of minerals on the dark-colored ice, located in the Greenland ice sheet ablation zone, we analyzed the Sr and Nd isotopic ratios of minerals in cryoconite, which were collected from glaciers in northwest and s
Externí odkaz:
https://doaj.org/article/5d5568d1f988438989932015a98daf09
Publikováno v:
Environmental Research Letters, Vol 9, Iss 4, p 045007 (2014)
Cryoconite is a dark-coloured surface dust deposited on glaciers that consists of wind-blown mineral particles, as well as organic matter derived from microbes living on glaciers. In this paper, we analyse the Sr and Nd isotopic ratios of four minera
Externí odkaz:
https://doaj.org/article/7fd2f9ab2ba345108d3e20b96dd93270
Autor:
Kumiko Goto-Azuma, Dallmayr, Remi, Yoshimi Ogawa-Tsukagawa, Nobuhiro Moteki, Tatsuhiro Mori, Sho Ohata, Yutaka Kondo, Makoto Koike, Motohiro Hirabayashi, Jun Ogata, Kyotaro Kitamura, Kenji Kawamura, Koji Fujita, Sumito Matoba, Naoko Nagatsuka, Akane Tsushima, Kaori Fukuda, Teruo Aoki
Publikováno v:
Atmospheric Chemistry & Physics Discussions; 5/23/2024, p1-25, 25p
Autor:
Yukihiko Onuma, Nozomu Takeuchi, Jun Uetake, Masashi Niwano, Sota Tanaka, Naoko Nagatsuka, Teruo Aoki
Publikováno v:
Journal of Glaciology. 69:487-499
Glacier phototroph blooms on the surfaces of ice sheets and glaciers cause albedo reduction, leading to increased melting rates. We observed seasonal changes in the abundance of phototrophs on the Qaanaaq Ice Cap in northwestern Greenland from June t
Autor:
Naoko, Nagatsuka, Kumiko, Goto-Azuma, Akane, Tsushima, Koji, Fujita, Sumito, Matoba, Yukihiko, Onuma, Yuki, Komuro, Motohiro, Hirabayashi, Jun, Ogata, Yoshimi, Ogawa-Tsukagawa, Kyotaro, Kitamura, Teruo, Aoki, Trevor, Popp, Dorthe, Dahl-Jensen
The 13th Symposium on Polar Science/Ordinary sessions [OM] Polar meteorology and glaciology, Wed. 16 Nov.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::5f164957dd2f9c13d85413b0e88a092d
http://id.nii.ac.jp/1291/00017001/
http://id.nii.ac.jp/1291/00017001/
Autor:
Naga Oshima, Shin Sugiyama, Mizuo Kajino, Yukihiko Onuma, Takeshi Kinase, Kaoru Kawakami, Naoko Nagatsuka, Kumiko Goto-Azuma, Hideaki Motoyama, Akihiro Hachikubo, Nozomu Takeuchi, Taichu Yasumich Tanaka, Masashi Niwano, Tomonori Tanikawa, Masahiro Hori, Satoru Yamaguchi, Yoshinori Iizuka, Akihiro Hashimoto, Hiroshi Ishimoto, Rigen Shimada, Sumito Matoba, Jun Uetake, Tetsuhide Yamasaki, Kouji Adachi, Koji Fujita, Katsuyuki Kuchiki, Teruo Aoki, Yutaka Kurosaki, Shun Tsutaki
Publikováno v:
Journal of the Japanese Society of Snow and Ice. 83:169-191
Autor:
Yutaka Kondo, P. R. Sinha, Motohiro Hirabayashi, Yoshimi Ogawa-Tsukagawa, Tatsuhiro Mori, Nobuhiro Moteki, Naga Oshima, Satoshi Omiya, Naoko Nagatsuka, Atsuko Sugimoto, Martin Schneebeli, Konosuke Sugiura, Sho Ohata, Kumiko Goto-Azuma, Teruo Aoki, Akane Tsushima, Shinya Takano, Vladimir N. Makarov, Kaarle Kupiainen, Atsushi Sato, Kazuhiko Miura, Makoto Koike, Konrad Steffen
Publikováno v:
Journal of Geophysical Research: Atmospheres. 124:13325-13356
Key Points: • First ever measurements with a high‐accuracy single‐particle soot photometer of black carbon (BC) concentrations in Arctic snowpack • Topography and BC emission flux strongly influenced latitudinal variations of mass concentrati