Division Seminarカテゴリのエントリ

17th, February (Wed), Annoucement of TS seminar

This is announcement about TS seminar.

(Date)  17th, February (Wed), 12:30〜

(Place)  A807

July 8th (Wed), Announcement of the sub seminar of Symbiosis in nature



Dear All

This is an announcement of the sub seminar of Symbiosis in nature.

【date】7/8(Wed) 14:45-16:15
【Room】D102
【Content】 Paper review

1. Makoto Tamamoto (M1)

[Title] Surface ozone at four remote island sites and the preliminary
assessment of the exceedances of its critical level in Japan
[Authors] Pochanart P., Akimoto H., Kinjo Y., Tanimoto H.
[Journal] Atmospheric Environment 36 (2002) 4235–4250

2. Li Qian (M1)

[Title] A chronosequence approach for detecting revegetation patterns
after Sphagnum-peat mining, northern Japan
[Authors] Nishimura A., Tsuyuzaki S., Haraguchi A.
[Journal] Ecological Research 24 (2009) 237-246

3. Aiko Hibino (M1)

[Title] Distribution and species composition of macroinvertebrates in
the hyporheic zone of bed sediment
[Authors] Xu M. Z., Wang Z. Y., Pan B. Z., Zhao N.
[Journal] International Journal of Sediment Research 27 (2012) 129-140

[Schedule of seminar]

English http://hosho.ees.hokudai.ac.jp/~tsuyu/top/lecture/nature_semi-e.html

 Announcement of the Environmental Geography 1st July

環境起学専攻 教員・学生の皆様

人間生態システムコース・環境地理学アプローチ博士2年の小林勇介です。
前期第9回目の環境地理学セミナーの案内を致します。連絡が遅くなり申し訳ありません。
興味のある方は是非、ご参加ください。

【日時】7月1日14時45分〜18時00分

【場所】C204(2)

【プログラム】
1.個人の活動報告(全員)
2.研究構想発表

【トラオレ】
Land use change and their determinants in the coastal area of Guinea.
A study based on Remote Sensing and Field Survey.



--------------------------------------------

Dear all:

I am Yusuke KOBAYASHI (D2)
This is an announcement of the Environmental geography seminar.
If you have any interest, please attend the seminar.

【Date】: 1st July (wed.), 14:45〜18:00
【Place】: C204(2)
【Content】:
1. Individual study report
All members
2.Study Plan

【Toraore Arafan】
Land use change and their determinants in the coastal area of Guinea.
A study based on Remote Sensing and Field Survey.

Please feel free to contact me if you have any questions or comments.
Best Regards,
Kobayashi

June 23rd (Tue), Announcement of GEM seminar (6)

Dear all,

This is an announcement of GEM course seminar.
Please see the details below.

Date: June 23rd (Tue),
Time: 13:00 to 14:30
Venue: D101

Presenters:
1. Amit Kumar Batar
"Using Satellite data to monitor land use and land cover change in Rudraprayag district, Garhwal Himalaya, Uttarakhand, India"

2. Bolorchimeg Byamba
"An overview of Municipal Solid Waste Management in Ulaanbaatar, Mongolia"

If you have any questions and/or if you are absent on June 23rd, kindly contact me (chimka.cr@gmail.com) and cc to prof. Mamoru Ishikawa (mishi@ees.hokudai.ac.jp).
Thank you very much in advance for your cooperation.

Sincerely,

Chimka (Bolorchimeg Byamba)
TA of GEM seminar

 Announcement of the Environmental Geography 24th June

環境起学専攻 教員・学生の皆様

人間生態システムコース・環境地理学アプローチ博士2年の小林勇介です。
前期第8回目の環境地理学セミナーの案内を致します。連絡が遅くなり申し訳ありません。
興味のある方は是非、ご参加ください。

【日時】6月24日14時45分〜18時00分

【場所】C204(2)

【プログラム】
1.個人の活動報告(全員)
2.研究発表(アミット)
3.論文紹介(張志洪)

【アミット・クマール・バタール】
発表題目:Using Satellite data to monitor land use and land cover change in Rudraprayag district, Garhwal Himalaya, Uttarakhand, India

【張志洪】
論文所在:http://www.episodes.org/index.php/epi/article/viewFile/62481/48747
論文題目:The socio-economic benefits of establishing National Geoparks in China
雑誌:Episodes, Vol. 26, no. 4, December 2003
著者:Zhao Xun, Zhao Ting
概要:Since 2000, based on a wealth of geological heritage sites and experience with their conservation, China has formally approved the establishment of forty four National Geoparks, whose distribution and characteristics are dominated by structural setting and neotectonism. Conserving and developing the sites have brought about favorable social, economic and environmental benefits, and created a positive climate for their inclusion in the world Geopark network under the patronage of UNESCO. Geological sites record the important physical phenomena from which we can trace the evolutionary history of the Earth. They serve as an avenue for the understanding of the Earth’s 4,600 Ma-history, and are the only source providing essential information on the Earth’s evolutionary changes and processes. In this connection, people regard geological sites as an invaluable legacy bestowed by Mother Earth and name them a ‘geological heritage’. Safeguarding and treasuring this heritage, which, once lost can never be recovered, has become a matter of common concern for the people of the global village. The history of the study and conservation of geological remains can be traced back to ancient times. But because of underdevelopment of science and technology, no scientific answers were available then to the mysteries hidden within these phenomena, and the conservation efforts were spontaneous. Scientific research on geological remains and the progressive recognition of their significance are in a real sense the outcome of the Industrial Revolution and the development of modern science. From ignorance to science, and from spontaneity to consciousness, there is an endless progression.


--------------------------------------------

Dear all:

I am Yusuke KOBAYASHI (D2)
This is an announcement of the Environmental geography seminar.
If you have any interest, please attend the seminar.

【Date】: 24th June (wed.), 14:45〜18:00
【Place】: C204(2)
【Content】:
1. Individual Study Report
All members
2.Study Report
Amit Kumar Batar
3.Journal Review
Zhang Zhihong

【Amit Batar Kumar】
Title:Using Satellite data to monitor land use and land cover change in Rudraprayag district, Garhwal Himalaya, Uttarakhand, India

【Zhang Zhihong】
URL:http://www.episodes.org/index.php/epi/article/viewFile/62481/48747
Title:The socio-economic benefits of establishing National Geoparks in China
Journal:Episodes, Vol. 26, no. 4, December 2003
Author:Zhao Xun, Zhao Ting
Abstract:Since 2000, based on a wealth of geological heritage sites and experience with their conservation, China has formally approved the establishment of forty four National Geoparks, whose distribution and characteristics are dominated by structural setting and neotectonism. Conserving and developing the sites have brought about favorable social, economic and environmental benefits, and created a positive climate for their inclusion in the world Geopark network under the patronage of UNESCO. Geological sites record the important physical phenomena from which we can trace the evolutionary history of the Earth. They serve as an avenue for the understanding of the Earth’s 4,600 Ma-history, and are the only source providing essential information on the Earth’s evolutionary changes and processes. In this connection, people regard geological sites as an invaluable legacy bestowed by Mother Earth and name them a ‘geological heritage’. Safeguarding and treasuring this heritage, which, once lost can never be recovered, has become a matter of common concern for the people of the global village. The history of the study and conservation of geological remains can be traced back to ancient times. But because of underdevelopment of science and technology, no scientific answers were available then to the mysteries hidden within these phenomena, and the conservation efforts were spontaneous. Scientific research on geological remains and the progressive recognition of their significance are in a real sense the outcome of the Industrial Revolution and the development of modern science. From ignorance to science, and from spontaneity to consciousness, there is an endless progression.


Please feel free to contact me if you have any questions or comments.
Best Regards,
Kobayashi

 Announcement of the Environmental Geography 17th June

環境起学専攻 教員・学生の皆様

人間生態システムコース・環境地理学アプローチ博士2年の小林勇介です。
前期第7回目の環境地理学セミナーの案内を致します。連絡が遅くなり申し訳ありません。
興味のある方は是非、ご参加ください。

【日時】6月17日14時45分〜18時00分

【場所】C204(2)

【プログラム】
1.個人の活動報告(全員)
2.論文紹介(牛潤華・張健)

【牛潤華】
論文所在:http://www.sciencedirect.com/science/article/pii/S1001074215000479
題目:Flux characteristics of total dissolved iron and its species during extreme rainfall event in the midstream of the Heilongjiang River
雑誌:Journal of Environmental Sciences
   Volume 30, 1 April 2015, Pages 74–80
著者:Jiunian Guan, Baixing Yan, Hui Zhu, Lixia Wang, Duian Lu, Long Cheng
概要:The occurrence of extreme rainfall events and associated flooding has been enhanced due to climate changes, and is thought to influence the flux of total dissolved iron (TDI) in rivers considerably. Since TDI is a controlling factor in primary productivity in marine ecosystems, alteration of riverine TDI input to the ocean may lead to climate change via its effect on biological productivity. During an extreme rainfall event that arose in northeastern China in 2013, water samples were collected in the midstream of the Heilongjiang River to analyze the concentration and species of TDI as well as other basic parameters. The speciation of TDI was surveyed by filtration and ultrafiltration methods. Compared with data monitored from 2007 to 2012, the concentration of TDI increased significantly during this event, with an average concentration of 1.11 mg/L, and the estimated TDI flux reached 1.2 × 105 tons, equaling the average annual TDI flux level. Species analysis revealed that low-molecular-weight complexed iron was the dominant species, and the impulse of TDI flux could probably be attributed to the hydrological connection to riparian wetlands and iron-rich terrestrial runoff. Moreover, dissolved organic matter played a key role in the flux, species and bioavailability of TDI. In addition, there is a possibility that the rising TDI flux could further influence the transport and cycling of nutrients and related ecological processes in the river, estuary coupled with the coastal ecosystems, which merits closer attention in the future.

【張健】
論文所在:http://www.sciencedirect.com/science/article/pii/0016703777900758
題目:The mechanism of iron removal in estuaries
雑誌::Geochimica et Cosmochimica Acta
   Volume 41, Issue 9, September 1977, Pages 1313–1324
著者::E.A. Boyle, J.M. Edmond and E.R. Sholkovitz
概要:
A survey of U.S. east coast estuaries confirms that large-scale rapid removal of iron from river water is a general phenomenon during estuarine mixing.
The river-borne ‘dissolved’ iron consists almost entirely of mixed iron oxide-organic matter colloids, of diameter less than 0.45 μm, stabilized by the dissolved organic matter.
Precipitation occurs on mixing because the seawater cations neutralize the negatively charged iron-bearing colloids allowing flocculation.
The process has been duplicated in laboratory experiments using both natural filtered and unfiltered river water and a synthetic colloidal goethite in 0.05 μm filtered water.
The colloidal nature of the iron has been further confirmed by ultracentrifugation and ultrafiltration.
A major consequence of the precipitation phenomena is to reduce the effective input of ‘dissolved’ iron to the ocean by about 90% of the primary river value, equivalent to a concentration of less than 1 μmol per liter of river water.

--------------------------------------------

Dear all:

I am Yusuke KOBAYASHI (D2)
This is an announcement of the Environmental geography seminar.
If you have any interest, please attend the seminar.

【Date】: 17th June (wed.), 14:45〜18:00
【Place】: C204(2)
【Content】:
1. Individual study report
All members
2.journal review
Zhang Jian and Niu Runhua


【Niu Runhua】
URL:http://www.sciencedirect.com/science/article/pii/S1001074215000479
Title:Flux characteristics of total dissolved iron and its species during extreme rainfall event in the midstream of the Heilongjiang River
Journal:Journal of Environmental Sciences
   Volume 30, 1 April 2015, Pages 74–80
Author:Jiunian Guan, Baixing Yan, Hui Zhu, Lixia Wang, Duian Lu, Long Cheng
Abstract:The occurrence of extreme rainfall events and associated flooding has been enhanced due to climate changes, and is thought to influence the flux of total dissolved iron (TDI) in rivers considerably. Since TDI is a controlling factor in primary productivity in marine ecosystems, alteration of riverine TDI input to the ocean may lead to climate change via its effect on biological productivity. During an extreme rainfall event that arose in northeastern China in 2013, water samples were collected in the midstream of the Heilongjiang River to analyze the concentration and species of TDI as well as other basic parameters. The speciation of TDI was surveyed by filtration and ultrafiltration methods. Compared with data monitored from 2007 to 2012, the concentration of TDI increased significantly during this event, with an average concentration of 1.11 mg/L, and the estimated TDI flux reached 1.2 × 105 tons, equaling the average annual TDI flux level. Species analysis revealed that low-molecular-weight complexed iron was the dominant species, and the impulse of TDI flux could probably be attributed to the hydrological connection to riparian wetlands and iron-rich terrestrial runoff. Moreover, dissolved organic matter played a key role in the flux, species and bioavailability of TDI. In addition, there is a possibility that the rising TDI flux could further influence the transport and cycling of nutrients and related ecological processes in the river, estuary coupled with the coastal ecosystems, which merits closer attention in the future.


【Zhang Jian】
URL:http://www.sciencedirect.com/science/article/pii/0016703777900758
Title:The mechanism of iron removal in estuaries
Journal:Geochimica et Cosmochimica Acta
     Volume 41, Issue 9, September 1977, Pages 1313–1324
Author:E.A. Boyle, J.M. Edmond and E.R. Sholkovitz
Abstract
A survey of U.S. east coast estuaries confirms that large-scale rapid removal of iron from river water is a general phenomenon during estuarine mixing.
The river-borne ‘dissolved’ iron consists almost entirely of mixed iron oxide-organic matter colloids, of diameter less than 0.45 μm, stabilized by the dissolved organic matter.
Precipitation occurs on mixing because the seawater cations neutralize the negatively charged iron-bearing colloids allowing flocculation.
The process has been duplicated in laboratory experiments using both natural filtered and unfiltered river water and a synthetic colloidal goethite in 0.05 μm filtered water.
The colloidal nature of the iron has been further confirmed by ultracentrifugation and ultrafiltration.
A major consequence of the precipitation phenomena is to reduce the effective input of ‘dissolved’ iron to the ocean by about 90% of the primary river value, equivalent to a concentration of less than 1 μmol per liter of river water.


Please feel free to contact me if you have any questions or comments.
Best Regards,
Kobayashi

(27th May) Announcement of the Environmental Geography /環境地理学演習のご案内

環境起学専攻 教員・学生の皆様

人間生態システムコース・環境地理学アプローチ博士2年の小林勇介です。
前期第5回目の環境地理学セミナーの案内を致します。連絡が遅くなり申し訳ありません。
興味のある方は是非、ご参加ください。

【日時】5月27日14時45分〜18時00分
※開始時刻が遅れる可能性あり※

【場所】C204(2)

【プログラム】
1.個人の活動報告(全員)
2.研究構想発表(古賀)
3.論文紹介(張健)

タイトル: The mechanism of iron removal in estuaries

雑誌: Geochimica et Cosmochimica Acta

Volume 41, Issue 9, September 1977, Pages 1313–1324

著者: E.A. Boyle, J.M. Edmond and E.R. Sholkovitz

アブストラクト
A survey of U.S. east coast estuaries confirms that large-scale rapid removal of iron from river water is a general phenomenon during estuarine mixing.
The river-borne ‘dissolved’ iron consists almost entirely of mixed iron oxide-organic matter colloids, of diameter less than 0.45 μm, stabilized by the dissolved organic matter.
Precipitation occurs on mixing because the seawater cations neutralize the negatively charged iron-bearing colloids allowing flocculation.
The process has been duplicated in laboratory experiments using both natural filtered and unfiltered river water and a synthetic colloidal goethite in 0.05 μm filtered water.
The colloidal nature of the iron has been further confirmed by ultracentrifugation and ultrafiltration.
A major consequence of the precipitation phenomena is to reduce the effective input of ‘dissolved’ iron to the ocean by about 90% of the primary river value, equivalent to a concentration of less than 1 μmol per liter of river water.

--------------------------------------------

Dear all:

I am Yusuke KOBAYASHI (D2)
This is an announcement of the Environmental geography seminar.
If you have any interest, please attend the seminar.

【Date】: 27th MAY (wed.), 14:45〜18:00
【Place】: C204(2)
【Content】:
1. Individual study report
All members
2.study plan
Mr.KOGA
3.journal review
Zhang Jian

Title: The mechanism of iron removal in estuaries

Journal: Geochimica et Cosmochimica Acta

Volume 41, Issue 9, September 1977, Pages 1313–1324

Author: E.A. Boyle, J.M. Edmond and E.R. Sholkovitz


Abstract
A survey of U.S. east coast estuaries confirms that large-scale rapid removal of iron from river water is a general phenomenon during estuarine mixing.
The river-borne ‘dissolved’ iron consists almost entirely of mixed iron oxide-organic matter colloids, of diameter less than 0.45 μm, stabilized by the dissolved organic matter.
Precipitation occurs on mixing because the seawater cations neutralize the negatively charged iron-bearing colloids allowing flocculation.
The process has been duplicated in laboratory experiments using both natural filtered and unfiltered river water and a synthetic colloidal goethite in 0.05 μm filtered water.
The colloidal nature of the iron has been further confirmed by ultracentrifugation and ultrafiltration.
A major consequence of the precipitation phenomena is to reduce the effective input of ‘dissolved’ iron to the ocean by about 90% of the primary river value, equivalent to a concentration of less than 1 μmol per liter of river water.



Please feel free to contact me if you have any questions or comments.

Best Regards,
Kobayashi

 Announcement of the Environmental Geography 19th May

環境起学専攻 教員・学生の皆様

人間生態システムコース・環境地理学アプローチ博士2年の小林勇介です。
前期第4回目の環境地理学セミナーの案内を致します。
興味のある方は是非、ご参加ください。

【日時】5月20日14時45分〜18時00分

【場所】C204(2)

【プログラム】
1.個人の活動報告(全員)
2.研究発表(アミット、ドナルド)


--------------------------------------------

Dear all:

I am Yusuke KOBAYASHI (D2)
This is an announcement of the Environmental geography seminar.
If you have any interest, please attend the seminar.

【Date】: 20th MAY (wed.), 14:45〜18:00
【Place】: C204(2)
【Content】:
1. Individual study report
All members
2.study progress
Amit Batar, Donald Kimutai


Please feel free to contact me if you have any questions or comments.

Best Regards,
Kobayashi

4/27(月), 数理モデルサブセミナー,TS seminar (TSセミナー)の案内

環境起学専攻 教員・学生の皆様

次回のTSセミナーは以下の場所,内容となっております.
This is announcement about TS seminar
日:4/27(月)
時間:12:30〜14:00
場所:A807
備考:飲食可
Date: 4/27(月),12:30〜14:00
Place: A807

演者:高木俊甫
内容:「2変数のテイラー展開とその応用」

前期の前半は基礎数学(微積分・線形代数)の勉強会を行いたいと思います。

***目的***
様々な生命現象を理解するための数理的手法を学ぶとともに、
自らのアイデアで構築した数理モデルについて発表をするセミナーです。
教員、ポスドク、院生いろいろな人が参加し、にぎやかに議論をすることを
目指します。

***時間,場所,単位*** 原則として隔週水曜、 A807において.2年間受
講すれば4単位分.

重複されている方,情報の行き違ってしまった方は申し訳ございませんでした.

何かご不明の点がございましたら下記のアドレスにご連絡お願いいたします.

------------------------------------------------------------------------北海道大学環境科学院環境起学専攻
高田研究室M2 高木俊甫(Shunsuke Takagi)
stbokun@gmail.com

4/13(月), 環境適応コースセミナー開講のお知らせ

環境適応コースセミナー開講のお知らせ

第一回目: 4月13日(月) PM 4:30〜(6:00)
  場所: 環境科学院講義棟 D103


内容: 出席者の自己紹介・教員の研究紹介
環境適応コースセミナー日程についての説明、など
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Course Seminar of Environmental Adaptation Science

Starting Date: Apr.13th (Mon.) PM 4:30〜(6:00)
Place: GSES bldg. D103
Theme:
・Self-Introduction of all participants
・Simple introduction of research field of staffs
・Guidance of course seminar schedule
=======================================
Contact:
環境適応コース・ 豊田和弘(教員)または申屠雷吉(TA)
Kazuhiro Toyoda (staff) kazuhiro@ees.hokudai.ac.jp (rm.C408)
Leiji Shentu (TA) leiji@ees.hokudai.ac.jp (rm.C410)

Graduate School of Environmental Sceince, Hokkaido University