start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=20040325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=大気･海洋間の二酸化炭素交換に関する研究
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=IwataToru
en-aut-sei=Iwata
en-aut-mei=Toru
kn-aut-name=岩田徹
kn-aut-sei=岩田
kn-aut-mei=徹
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=7
end-page=10
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=200312
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=八浜農場での熱収支
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=太陽から地表面に与えられた熱エネルギーは、顕熱や潜熱に変換されるが、地表面の種類や状態によってその配分比率が変わり、大気に及ぼす効果は異なる。従来から、いろいろな地表面において熱収支に関する研究が行われており、裸地面ではその収支は釣り合っているとされている（例えば、古藤田、1984；近藤、1995；Seo、1958)。しかし、森林などの複雑地形状で渦相関法を用いた測定では熱収支が閉じないと指摘されている（Finnigan et al.,2003)。我々の研究目的は、裸地と森林の中間的な粗度面である水稲群落圃場での熱収支を明らかにすることである。特に、圃場の土壌及び灌漑水の貯熱量に注目し解析を行った。
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=楊冬梅
kn-aut-sei=楊
kn-aut-mei=冬梅
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=岩田徹
kn-aut-sei=岩田
kn-aut-mei=徹
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=三浦健志
kn-aut-sei=三浦
kn-aut-mei=健志
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学

affil-num=2
en-affil=
kn-affil=岡山大学

affil-num=3
en-affil=
kn-affil=岡山大学
en-keyword=八浜
kn-keyword=八浜
en-keyword=熱収支
kn-keyword=熱収支
en-keyword=水稲群落圃場
kn-keyword=水稲群落圃場
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=9
end-page=11
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=200312
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=八浜農場でのCO2フラックス
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=1997年のCOP3（京都会議)では、陸上生態系による炭素固定量を評価し、これを国別排出量から差し引くことが同意された。このため、陸域生態系における高精度の二酸化炭素、水蒸気、熱フラックス等の長期観測に基づいた科学的知見を集積し、対策を決めることが緊要課題となっている。このような社会的要請に応えるために、アメリカやヨーロッパ諸国では植生−大気相互作用の長期観測ネットワーク（EuroFlux, AmeriFlux)化が始まっている。日本でも1999年9月、日本を拠点としてアジアのネットワーク（AshiaFlux)の構築が決議された。我々は、AsiaFluxネットワークの一員として、岡山県南部の干拓農地に立地している岡山大学農学部附属農場において、二酸化炭素、水蒸気、熱フラックスの通年観測を実施している。本年度は、(1)岡山地方の一般的な農業形態をとっている八浜農場における炭素と熱収支の実態把握、(2)渦相関法では熱収支が閉じないという問題点の検討、という2つの課題に取り組んだ。
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=北垣順大
kn-aut-sei=北垣
kn-aut-mei=順大
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=牛川希望
kn-aut-sei=牛川
kn-aut-mei=希望
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=岩田徹
kn-aut-sei=岩田
kn-aut-mei=徹
aut-affil-num=3
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大滝英治
kn-aut-sei=大滝
kn-aut-mei=英治
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学

affil-num=2
en-affil=
kn-affil=岡山大学

affil-num=3
en-affil=
kn-affil=岡山大学

affil-num=4
en-affil=
kn-affil=岡山大学
en-keyword=八浜農場
kn-keyword=八浜農場
en-keyword=CO2フラックス
kn-keyword=CO2フラックス
en-keyword=COP3
kn-keyword=COP3
END

start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=1
article-no=
start-page=69
end-page=73
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=20040227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=CO(2) Fluxes Measured by Eddy Correlation and Aerodynamic Techniques
kn-title=傾度法と渦相関法で測定した二酸化炭素フラックスの比較
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=To elucidate the seasonal and inter-annual variation of CO(2) exchanges between the atmosphere and cultivated field in Japan, the CO(2) flux has been measured by the eddy correlation technique at the experimental farm of Agricultural Faculty, Okayama University since December in 1998. The CO(2) sensor, however, does not work under rainy conditions. The improved aerodynamic technique was developed and used to cover CO(2) flux data which were not collected. This technique gives reasonable CO(2) fluxes even in rainy days. The reliability of the technique was also confirmed by comparing CO(2) fluxes with those measured by the eddy correlation technique using data in fine weather conditions.
en-copyright=
kn-copyright=

en-aut-name=InoharaSachiko
en-aut-sei=Inohara
en-aut-mei=Sachiko
kn-aut-name=猪原幸子
kn-aut-sei=猪原
kn-aut-mei=幸子
aut-affil-num=1
ORCID=

en-aut-name=IwataToru
en-aut-sei=Iwata
en-aut-mei=Toru
kn-aut-name=岩田徹
kn-aut-sei=岩田
kn-aut-mei=徹
aut-affil-num=2
ORCID=

en-aut-name=OhtakiEiji
en-aut-sei=Ohtaki
en-aut-mei=Eiji
kn-aut-name=大滝英治
kn-aut-sei=大滝
kn-aut-mei=英治
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学

affil-num=2
en-affil=
kn-affil=岡山大学

affil-num=3
en-affil=
kn-affil=岡山大学
en-keyword=CO(2) flux
kn-keyword=CO(2) flux
en-keyword=Eddy correlation technique
kn-keyword=Eddy correlation technique
en-keyword=Aerodynamic techniques
kn-keyword=Aerodynamic techniques
en-keyword=Dimensionless profile
kn-keyword=Dimensionless profile
END

start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=1
article-no=
start-page=75
end-page=79
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=20040227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=The Study of Monin-Obukhov Similarity of Vertical Wind Velocity and Scalar Quantities in the Atmospheric Surface Layer
kn-title=接地境界層における鉛直風速およびスカラー量に関するモニン・オブコフ相似則
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Standard deviations for vertical wind velocity and scalar quantities, such as carbon dioxide,c, and water vapor,q, were analyzed on the basis of Monin-Obukhov similarity theory in the atmospheric surface layer. The correlation coefficient between scalar quantities c and q ,|R(cq)|, was derived from the similarity functions and can be expressed as the ratio of B(q)/B(c)(B(q)?B(c)), where parameter B is the value of the normalized standard deviation of carbon dioxide and water vapor at neutral conditions.
en-copyright=
kn-copyright=

en-aut-name=UshikawaNozomi
en-aut-sei=Ushikawa
en-aut-mei=Nozomi
kn-aut-name=牛川希望
kn-aut-sei=牛川
kn-aut-mei=希望
aut-affil-num=1
ORCID=

en-aut-name=IwataToru
en-aut-sei=Iwata
en-aut-mei=Toru
kn-aut-name=岩田徹
kn-aut-sei=岩田
kn-aut-mei=徹
aut-affil-num=2
ORCID=

en-aut-name=OhtakiEiji
en-aut-sei=Ohtaki
en-aut-mei=Eiji
kn-aut-name=大滝英治
kn-aut-sei=大滝
kn-aut-mei=英治
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学

affil-num=2
en-affil=
kn-affil=岡山大学

affil-num=3
en-affil=
kn-affil=岡山大学
en-keyword=Monin-Obukhov similarity theory
kn-keyword=Monin-Obukhov similarity theory
en-keyword=Standard deviation
kn-keyword=Standard deviation
en-keyword=Correlation coefficient
kn-keyword=Correlation coefficient
en-keyword=Carbon dioxide
kn-keyword=Carbon dioxide
en-keyword=Water vapor
kn-keyword=Water vapor
END

start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=1
article-no=
start-page=81
end-page=85
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=20040227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Heat Budget on Rice Field
kn-title=水稲耕作地における熱収支
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Experience of flux measurements over tall canopies has revealed that the eddy flux of sensible plus latent heat is about 30% smaller than the available radiant energy flux. A systematic observation was carried out to investigate the imbalance problem on rice field. The rice field represents a complex system consisting of rice plant, irrigated water and soil. Date obtained in this experiment show that appreciable understimations of sensible and latent heat fluxes are not recognized but understimations of 15 to 23% are counted in the soil heat flux.
en-copyright=
kn-copyright=

en-aut-name=YangDongmei
en-aut-sei=Yang
en-aut-mei=Dongmei
kn-aut-name=楊冬梅
kn-aut-sei=楊
kn-aut-mei=冬梅
aut-affil-num=1
ORCID=

en-aut-name=IwataToru
en-aut-sei=Iwata
en-aut-mei=Toru
kn-aut-name=岩田徹
kn-aut-sei=岩田
kn-aut-mei=徹
aut-affil-num=2
ORCID=

en-aut-name=MiuraTakeshi
en-aut-sei=Miura
en-aut-mei=Takeshi
kn-aut-name=三浦健志
kn-aut-sei=三浦
kn-aut-mei=健志
aut-affil-num=3
ORCID=

en-aut-name=OhtakiEiji
en-aut-sei=Ohtaki
en-aut-mei=Eiji
kn-aut-name=大滝英治
kn-aut-sei=大滝
kn-aut-mei=英治
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学

affil-num=2
en-affil=
kn-affil=岡山大学

affil-num=3
en-affil=
kn-affil=岡山大学

affil-num=4
en-affil=
kn-affil=岡山大学
en-keyword=Heat budget
kn-keyword=Heat budget
en-keyword=Eddy correlation method
kn-keyword=Eddy correlation method
en-keyword=Sensible heat flux
kn-keyword=Sensible heat flux
en-keyword=Latent heat flux
kn-keyword=Latent heat flux
en-keyword=Soil heat flux
kn-keyword=Soil heat flux
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=
article-no=
start-page=20
end-page=25
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=20040701
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=二酸化炭素と水蒸気濃度変動に関するモニン･オブコフ相似則
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=牛川希望
kn-aut-sei=牛川
kn-aut-mei=希望
aut-affil-num=1
ORCID=

en-aut-name=IwataTooru
en-aut-sei=Iwata
en-aut-mei=Tooru
kn-aut-name=岩田徹
kn-aut-sei=岩田
kn-aut-mei=徹
aut-affil-num=2
ORCID=

en-aut-name=MiuraTakeshi
en-aut-sei=Miura
en-aut-mei=Takeshi
kn-aut-name=三浦健志
kn-aut-sei=三浦
kn-aut-mei=健志
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学

affil-num=2
en-affil=
kn-affil=岡山大学

affil-num=3
en-affil=
kn-affil=岡山大学
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=
article-no=
start-page=14
end-page=19
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=20040701
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=二酸化炭素のフラックスと勾配の関係
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=猪原幸子
kn-aut-sei=猪原
kn-aut-mei=幸子
aut-affil-num=1
ORCID=

en-aut-name=IwataTooru
en-aut-sei=Iwata
en-aut-mei=Tooru
kn-aut-name=岩田徹
kn-aut-sei=岩田
kn-aut-mei=徹
aut-affil-num=2
ORCID=

en-aut-name=MiuraTakeshi
en-aut-sei=Miura
en-aut-mei=Takeshi
kn-aut-name=三浦健志
kn-aut-sei=三浦
kn-aut-mei=健志
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学

affil-num=2
en-affil=
kn-affil=岡山大学

affil-num=3
en-affil=
kn-affil=岡山大学
END