氷期の大気中CO2濃度、生物生産、鉄の関わり（Costa et al., Jaccord et al., 2016, Nature）

No iron fertilization in the equatorial Pacific Ocean during the last ice age
K. M. Costa, J. F. McManus, R. F. Anderson, H. Ren, D. M. Sigman, G. Winckler, M. Q. Fleisher, F. Marcantonio & A. C. Ravelo
Nature 529, 519–522 (28 January 2016)

Covariation of deep Southern Ocean oxygenation and atmospheric CO₂ through the last ice age
Samuel L. Jaccard, Eric D. Galbraith, Alfredo Martínez-García & Robert F. Anderson
Nature (2016) doi:10.1038/nature16514

より。
ともに氷期における大気中CO₂濃度低下の謎について堆積物中の古気候指標から考察した論文。

JOIDES Resolution@インド洋南西部の甲板より。視線の先にJaccordらが得た堆積物の採取地が

From South of Madagascar

Now we are heading for first core site, Natal Valley. We revised the drilling plan because of some diplomatic issue.
There are often piracy in the north of Madagascar Island, thus we are now going in the southern course.

Currently we are discussing how to describe the splitted core, how to handle them, and how to write the report.

It is two days left until we arrive at the first core site. We must make ourselves fitted to day/night shift until the arrival. I'm in a night shift, so I will wake up in the mid-night and go to bed in the afternoon.

I have a really good friendship with members of this expedition, and enjoy a conversation with them so much! We are the family because we will spend dense two months together and our relationship will last for a couple of decades after this expedition, too.

JOIDES Resolution

A sign we found in the town of Port Louis!

Safety emergency drill

A magnificent sunset seen from the JR

A beautiful rainbow when we leave the port

A tag boat pull the JR during the departure

International community

I've got on board the US drilling ship JOIDES Resolution that is staying in Port Louis.

The inside of the ship is so clean and faculty members and staffs are very kind.

I really enjoy the meals here, and sometimes go to restaurant in waterfront area.

Scientific party is very international, and people come from US, Japan, Germany, UK, France, Australia, Brazil, China, and so on. My room mate is French.
I enjoy talking with new international friends, although I don't remember their names yet. The contents of the talk are mainly on science and culture of our own countries.

No one can properly pronounce/remember either Kaoru or Kubota, thus I will tell them "Just call me K".

Dr. K. 

It's a good name because there is a famous character in Japanese comic named Dr. K.
By the way, KUBOTA is popular in Japan owing to famous agricultural company and sake.

We share the cabin by two people in the ship, because a working shift is separated by day/night.
My shit is decided to be night shift. I will work from 0:00 to 12:00 every day. Thus I planed my life schedule as follows,

23:00 wake up

23:20 breakfast

0:00 the shift start

6:00 lunch

12:00 the shift end

12:20 dinner

13:00 training at gym

15:00 go to bed

It is very funny schedule. But considering a jet lug between here and Japan, it is very regular.
Thus, I may not suffer from the jet lug so much after I come back to Japan.

IODP Exp.361 "Southern African Climates (SAFARI)"

I will join the IODP Exp.361 "Southern African Climates (SAFARI)" as a sedimentologist.

Today I leave Haneda International Airport (Japan) for Mauritius via Dubai.
(By the way, today is my 29th birthday.)

A drilling ship, JOIDES Resolution is waiting for cruise members in Port Louis already. And it is surprised that R/V Hakuho-maru, a research ship owned by The Univ. Tokyo, also is staying in the same place!

It is for the first time for me to see African Continent, Madagascar Island, coral reefs in Mauritius! So I'm so excited.

In this expedition, I'm going to obtain planktonic foraminifers' samples preserved in the sediment in the southeastern Africa and measure boron isotopes of their shells.
I hope we can get plenty, well-preserved samples, and there is no conflicts between scientists.

We will leave ship at Cape town, Republic of South Africa  after about two month operation in the sea.

I will return to Japan on 2nd April. During the expedition I have to prepare a presentation at a scientific conference that will be held from 3rd April!

Additionally, I will revise two manuscript of scientific papers (one was now under the review and the other will be submitted soon).

Ah, I wanna forget about them because I have to work 12 hours a day without holiday two month.

Bellow are details of the expedition.

Press release from JAMSTEC
Details of the expedition from Texas A&M University

火山性の二酸化炭素が生み出す局所的な海洋酸性化〜将来の海の姿？

海洋酸性化は海に棲む炭酸塩の骨格を形成する生物（サンゴ・貝・有孔虫・石灰藻・翼足類・円石藻・ウニ・甲殻類など）に対して様々な影響を与えると予想されています。

※海洋酸性化については以下の拙ブログ記事などを参照のこと
▶︎ 海洋酸性化の現状（レビュー）
▶︎ 海洋酸性化とサンゴ礁生態系への影響
▶︎ 海洋酸性化の現状（海洋化学の視点から）
▶︎ 「海洋酸性化の生物多様性への影響の報告書」日本語版要約
▶︎ 「海洋酸性化の生物多様性への影響の報告書」一部訳（深海・造礁サンゴに対する海洋酸性化の影響）

琉球大学・栗原研究室HPより