ISSN 0386-4049
TECHNICAL REPORTS OF THE METEOROLOGICAL RESEARCH INSTITUTE No. 51

Highly developed precise analysis of atmospheric andoceanic sulfur hexafluoride (SF6)and evaluation of SF6 standard gas stability
BY
Takayuki Tokieda, Masao Ishii, Shu Saito and Takashi Midorikawa
Geochemical Research Department

᳇⽎⎇ⓥᚲᛛⴚႎ๔
╙ 51 ภ

ᄢ᳇߅ࠃ߮ᶏ᳓ਛߩ⿥ᓸ㊂౐ࡈ࠶ൻ⎫㤛(SF6)ߩ᷹ቯᚻᴺߩ㜞ᐲൻߣ
SF6 ᮡḰࠟࠬߩ㐳ᦼ቟ቯᕈߩ⹏ଔ
ᤨᨑ㓉ਯ‫ޔ‬⍹੗㓷↵‫ޔ‬ᢧ⮮ ⑲‫✛ޔ‬Ꮉ ⾆㧔࿾⃿ൻቇ⎇ⓥㇱ㧕᳇⽎⎇ⓥᚲ
METEOROLOGICAL RESEARCH INSTITUTE, JAPAN
December 2007߅߽ߡ⴫⚕ⵣ㕙

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1-1 Nagamine, Tsukuba, Ibaraki, 305-0052 JapanTECHNICAL REPORTS OF THE METEOROLOGICAL RESEARCH INSTITUTE
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Highly developed precise analysis of atmospheric and oceanic sulfur hexafluoride (SF6)and evaluation of SF6 standard gas stability

BY

Takayuki Tokieda, Masao Ishii, Shu Saito and Takashi Midorikawa
Geochemical Research Departmentᄢ᳇߅ࠃ߮ᶏ᳓ਛߩ⿥ᓸ㊂౐ࡈ࠶ൻ⎫㤛(SF6)ߩ᷹ቯᚻᴺߩ㜞ᐲൻߣ
SF6 ᮡḰࠟࠬߩ㐳ᦼ቟ቯᕈߩ⹏ଔ

ᤨᨑ㓉ਯ‫ޔ‬⍹੗㓷↵‫ޔ‬ᢧ⮮ ⑲‫✛ޔ‬Ꮉ ⾆㧔࿾⃿ൻቇ⎇ⓥㇱ㧕Ꮞ  㗡  ⸒

 18 ਎♿ߦ࡛࡯ࡠ࠶ࡄߢ↥ᬺ㕟๮߇⿠߈ߡએ᧪‫↥ޔ‬ᬺᵴേߩᵴ⊒ൻߦ઻߁ൻ⍹Άᢱᶖ⾌ߩჇᄢߦࠃߞߡ‫ޔ‬ᄢ᳇ਛߢߪੑ㉄ൻ὇⚛╬ߩ᷷ቶലᨐ᳇૕ߩỚᐲ߇Ⴧടߒߡ޿ࠆ‫ޔߦ․ޕ‬20 ਎♿ߩᓟඨߦߥࠆߣ‫ޔ‬᷷ቶലᨐ᳇૕ߩỚᐲ਄᣹߇ỗൻߔࠆߣߣ߽ߦ‫ࡦࡏ࡯ࠞࡠࡂޔ‬㘃ߩ⊒᣿ߣ૶↪ߦࠃߞߡ‫ޔ‬ᣂߚߦߘࠇࠄߩỚᐲ਄᣹߽ടࠊߞߡ޿ࠆ‫ޕ‬ߎࠇࠄߩᓸ㊂᳇૕ߩỚᐲჇട߆ࠄ੍ᗐߐࠇࠆ࿾⃿ߩ᷷ᥦൻ߿ࠝ࠱ࡦጀߩ⎕უߪ‫ޔ‬᳓ᓴⅣߩᄌൻࠍ઻߁᳇୥ᄌൻ߿
ᶏ㕙᳓૏ߩ਄᣹‫⚿ߩߘޔ‬ᨐߣߒߡ㒽਄࡮ᶏᵗߩ↢ᘒ♽߳ߩᓇ㗀ߥߤࠍㅢߓߡ‫ੱޔ‬㘃ߩ↢ሽၮ⋚ࠍំࠆ߇ߒ‫ޔ‬࿖㓙␠ળߩ቟ቯࠍ៊ߥ߁ᄢ߈ߥ໧㗴ߣ ᔨߐࠇߡ޿ࠆ‫⁁ߚߒ߁ߎޕ‬ᴫߩਅߢ‫ޔ‬᷷ቶലᨐ᳇૕ߩಽᏓߣᄌേ߿‫↢ޔ‬ᘒ♽ߩ᜼േߦ㑐ࠊࠆ‛⾰ᓴⅣߩ⎇ⓥߪ‫ޔ‬᳇୥ᄌേ࡮࿾⃿ⅣႺ໧㗴ߦ㑐ࠊࠆ⻉⃻⽎ࠍ⸃᣿ߒ‫ߩߘޔ‬዁᧪ࠍ੍᷹ߔࠆ਄ߢ‫ޔ‬
߹ߔ߹ߔ㊀ⷐᕈࠍჇߒߡ޿ࠆ‫ޕ‬ ᳇⽎⎇ⓥᚲ࿾⃿ൻቇ⎇ⓥㇱߢߪ‫ޔ‬࿾⃿਄ߦ߅ߌࠆ᷷ቶലᨐ᳇૕ߣߘߩ㑐ㅪ‛⾰ࠍߪߓ߼ߣߔࠆൻቇ‛⾰ߩ᷹ቯᚻᴺߩ㐿⊒‫ᤨޔ‬ⓨ㑆ಽᏓߩ᷹ⷰ‫ⷰޔ‬᷹࠺࡯࠲ߩ⸃ᨆᚻᴺߩ㜞ᐲൻߥߤࠍㅢߒߡ‫⾰‛ޔ‬ᓴⅣߦ㑐ߔࠆ↢‛࿾⃿ൻቇ⊛ߥ⎇ⓥߦᷓߊ⽸₂ߒߡ߈ߚ‫ޕ‬ ᧄᛛⴚႎ๔ߦㅀߴࠆ౐ࡈ࠶ൻ⎫㤛߽‫ߊߏޔ‬ᓸ㊂ߥ߇ࠄߘߩᒝജߥ᷷ቶലᨐߦࠃߞߡ࿾⃿ⅣႺߦᓇ㗀ࠍ෸߷ߔߣ
⠨߃ࠄࠇ‫ޟޔ‬᳇୥ᄌേߦ㑐ߔࠆ࿖ㅪᨒ⚵᧦⚂‫ߡ޿߅ߦޠ‬ឃ಴ⷙ೙ኻ⽎ߣߐࠇߡ޿ࠆ㧢⒳㘃ߩ᷷ቶലᨐ᳇૕ߩ㧝ߟߣߥߞߡ޿ࠆ‫৻ޕ‬ᣇ‫࠶ࡈ౐ޔ‬ൻ⎫㤛ߪ‫ޟ‬࿾⃿ൻቇ࠻࡟࡯ࠨ࡯‫ޔߡߒߣޠ‬ᄢ᳇෸߮ᶏᵗߦ߅ߌࠆ‛ℂ⊛ߥᓴⅣ߿ᷙวㆊ⒟ࠍ⎇ⓥߔࠆ਄ߢ߽᦭↪ߥ᳇૕ߢ޽ࠆ‫ޕ‬ ߘߎߢ‫ޔ‬࿾⃿ൻቇ⎇ⓥㇱߢߪ‫ޔ‬ᐔᚑ 16 ᐕᐲ߆ࠄⲢวဳ⚻Ᏹ⎇ⓥ‫ޟ‬ᄢ᳇࡮ᶏᵗ㑆෸߮ᶏᵗ⴫ጀߦ߅ߌࠆ὇㉄♽ߩቄ▵࡮⚻ᐕᄌേߣߘߩࡔࠞ࠾࠭ࡓߩ⸃᣿ߦ㑐ߔࠆ᷹ⷰ⊛⎇ⓥ‫⑼߮ࠃ߅ޠ‬ቇ⎇ⓥ⾌⵬ഥ㊄⎇ⓥ‫ޟ‬ᶏᵗ CO2 ᄌേߩቯ㊂ൻᛛⴚߩ㜞ᐲൻߦ㑐ߔࠆၮ␆⊛⎇ⓥ‫࠶ࡈ౐ߢߣ߽ߩޠ‬ൻ⎫㤛ߩ᷹ቯᚻᴺߩ㜞ᐲൻߦขࠅ⚵ࠎߢ߈ߚ‫ࡈ౐ޕ‬࠶ൻ⎫㤛ߩ᷹ቯᚻᴺࠍ㜞ᐲൻߒ‫ޔ‬ᄢ᳇߿ᶏᵗߦ߅ߌࠆಽᏓ߿ᄌേࠍᛠីߔࠆߎߣߪ‫ߩࠄࠇߎޔ‬㕙߆ࠄ㊀ⷐߢ‫ߘޔ‬ߩ⺞ᩏ࡮⎇ⓥߩផㅴߦᄢ߈ߊነਈߔࠆߣ⠨߃ࠄࠇࠆ‫ޔߦࠄߐޕ‬᳇⽎ᐡߦ߅ߌࠆᛛⴚ⾗ᢱߣߒߡ‫੹ޔ‬ᓟߩ࿾⃿ⅣႺ෸߮ᶏᵗ⺞ᩏߦ㑐ߔࠆᬺോߦ߽⽸₂ߢ߈ࠆ߽ߩߣ⠨߃ࠆ‫ ޕ‬࿾⃿ൻቇ⎇ⓥㇱ㐳 ᐢἑ ൎᏆAbstract

Atmospheric concentration of sulfur hexafluoride (SF6) has been increasing since the 1960s when it
began being utilized by industries worldwide. Its contribution to global warming has been a growing
concern because of its significant impact as a greenhouse gas and its long lifetime in the atmosphere. In
consequence, SF6 was selected as one of the gases for reduced emissions at the Third Session of theConference of the Parties to the United Nations Framework Convention on Climate Change in 1997.
SF6 is also expected to be utilized as a chemical tracer for the circulation and the mixing processes in
the atmosphere and ocean. It is very difficult to measure SF6 in air and seawater due to its extremely low
concentration.
Highly improved analytical systems and sampling techniques have been examined to measure SF6 in
air and seawater with high precision. Consequently, the precision of analysis of standard gas having thelevel of atmospheric SF6 concentration was 0.31%, and that for replicate seawater samples with various
SF6 concentrations was usually 0.8%.
In addition, as a result of long-term monitoring for the SF6 standard gas, it became practicable tosupply SF6 standard gas that does not change in concentration for a long period, and the MeteorologicalResearch Institute SF6 Calibration Scale (MRI SF6 Calibration Scale) was established.

᭎  ⷐ ౐ࡈ࠶ൻ⎫㤛㧔SF6㧕ߪ‫ޔ‬1960 ᐕએ㒠ߩᎿᬺᵴേߦߣ߽ߥߞߡ‫ߩߘޔ‬ᄢ᳇ਛỚᐲ߇ᕆỗߦჇടߒߡ޿ࠆ‫ߘޕ‬ߩᭂ߼ߡᒝജߥ࿾⃿᷷ᥦൻ⢻ߣ‫ޔ‬ᭂ߼ߡ㐳޿ᄢ᳇ਛߢߩኼ๮ߩߚ߼‫ޔ‬዁᧪ߦࠊߚࠆ࿾⃿᷷ᥦൻ߳ߩነਈ߇ ᔨߐ
ࠇߪߓ߼‫ޔ‬1997 ᐕߩ╙㧟࿁᳇୥ᄌേᨒ⚵᧦⚂✦⚿࿖ળ⼏㧔COP3㧕ߦ߅޿ߡ‫ޔ‬ੑ㉄ൻ὇⚛㧔CO2㧕‫ࡦ࠲ࡔޔ‬㧔CH4㧕‫ޔ‬৻㉄ൻੑ⓸⚛㧔N2O㧕‫ࡦࡏ࡯ࠞࡠࠝ࡞ࡈࡠ࠼ࠗࡂޔ‬㘃㧔HFCs㧕‫ࡦࡏ࡯ࠞࡠࠝ࡞ࡈ࡯ࡄޔ‬㘃㧔PFCs㧕ߣߣ߽ߦ೥
ᷫኻ⽎‛⾰ߦᜰቯߐࠇߚ‫ޕ‬ SF6 ߪ߹ߚ‫ޔ‬ᄢ᳇߿ᶏᵗߩᓴⅣ߿ᷙวㆊ⒟ߩ⎇ⓥߩߚ߼ߩൻቇ࠻࡟࡯ࠨ࡯ߣߒߡߩ೑↪߇ᦼᓙߐࠇߡ޿ࠆ‫ޕ‬ᄢ᳇ਛߩ CO2 ߿ࠢࡠࡠࡈ࡞ࠝࡠࠞ࡯ࡏࡦ㘃㧔CFCs㧕ߥߤߦ↪޿ࠄࠇߡ޿ࠆ᳇ᩇሽ࿷㊂᷹ቯߩߚ߼ߩశቇ⊛ᚻᴺ߇
SF6 ߦߟ޿ߡ߽㐿⊒ਛߢ޽ࠆ߇‫ޔ‬࿾⃿⑼ቇ⊛⻉ㆊ⒟ࠍࠃࠅ㜞޿♖ᐲߢℂ⸃ߔࠆߚ߼ߦߪ‫ޔ‬㜞ኒᐲߥ᳓ᐔಽᏓߦ޽
ࠊߖߡ㋦⋥ಽᏓ‫ߜࠊߥߔޔ‬ỚᐲಽᏓߩขᓧ߇ᔅⷐߣߥࠆ‫ ߦߊߣޔߚ߹ޕ‬SF6 ߩᶏ᳓ਛߢߩᦨᄢỚᐲߪ⃻࿷‫ޔ‬㧝fmol/kg㧔10-15mol/kg㧕⒟ᐲߢ޽ࠆߚ߼‫ޔ‬amol/kg㧔10-18mol/kg㧕࡟ࡌ࡞ߩ᷹ቯ߇ⷐ᳞ߐࠇ‫ޔ‬ᔅὼ⊛ߦಽ㔌࡮Ớ❗ߣ㜞ᗵᐲߩᬌ಴ེߩ೑↪߇ਇนᰳߣߥࠆ‫ޕ‬ ᧄ⎇ⓥߢߪ‫ޔ‬ECD ᬌ಴ེࠍ↪޿ߚࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡈಽᨆࠪࠬ࠹ࡓߣᶏ᳓ߩណ᳓ࠪࠬ࠹ࡓࠍ㜞ᐲߦήᳪᨴൻ
ߒ‫ޔ‬㜞♖ᐲߩᄢ᳇෸߮ᶏ᳓ਛߩ SF6 ߩಽᨆࠍ⹜ߺߚ‫⚿ߩߘޕ‬ᨐ‫ޔ‬ᶏ᳓ਛߩ SF6 ߩᬌ಴㒢⇇ࠍ 0.015fmol/kg ߦ߹ߢૐᷫߐߖࠆߎߣߦᚑഞߒߚ‫ޔߚ߹ޕ‬ᄢ᳇Ớᐲ࡟ࡌ࡞ߩᮡḰࠟࠬߩಽᨆࠍ 0.31 %ߩ➅ࠅ㄰ߒ♖ᐲ‫⴫߮ࠃ߅ޔ‬ጀᶏ᳓ߩಽᨆࠍ 0.8r0.5 㧑ߩ➅ࠅ㄰ߒ♖ᐲߢⴕ߁ߎߣ߇ߢ߈ߚ‫ޔߦࠄߐޕ‬᳇⽎⎇ⓥᚲ SF6 ᮡḰࠟࠬ㧔MRI SF6
Calibration Scale㧕ࠍ⏕┙ߔࠆߚ߼㐳ᦼߦࠊߚࠆࡕ࠾࠲࡝ࡦࠣࠍⴕߞߡ߈ߚ⚿ᨐ‫ޔ‬ᮡḰࠟࠬߩ቟ቯᕈ߇⏕⹺ߢ߈‫ޔ‬ᄢ᳇⹜ᢱ߿ᶏᵗ⹜ᢱ߳ߩᔕ↪߇น⢻ߦߥߞߚ‫ޕ‬

目

次

はじめに

１ ．六 フ ッ 化 硫 黄 ( SF6) に つ い て … … … … … … … … … … … … … … … … … … … … …

1

1 - 1 SF6 と は … … … … … … … … … … … … … … … … … … … … … … … … … … … … …

1

1 - 2 温 室 効 果 気 体 と し て の SF6 … … … … … … … … … … … … … … … … … … … … …

1

1 - 3 大 気 中 に お け る SF6 … … … … … … … … … … … … … … … … … … … … … … … …

1

1-4 海洋における SF6 …………………………………………………………………

2

1-5 地球化学トレーサーとしての SF6 ………………………………………………

2

２．分析方法………………………………………………………………………………

5

2-1 達成目標 ……………………………………………………………………………

5

2-2 分析システムの概要 ………………………………………………………………

5

2-2-1 分離濃縮装置 …………………………………………………………………

5

2-2-2 カラム類 ………………………………………………………………………

7

2-2-3 定容管 …………………………………………………………………………

8

2-2-4 ガスクロマトグラフ …………………………………………………………

9

2-3 試料採取 ……………………………………………………………………………

9

2-3-1 超微量海水溶存気体分析用試料瓶を用いた海水試料の採取 ……………

9

2-3-2 大気試料の採取 ……………………………………………………………… 10
2 - 4 分 析 手 順 … … … … … … … … … … … … … … … … … … … … … … … … … … … … … 11
2 - 4 - 1 分 析 条 件 の 設 定 … … … … … … … … … … … … … … … … … … … … … … … … 11
2-4-2 海水試料の分析 ……………………………………………………………… 13
2-4-3 大気および標準ガス試料の分析 …………………………………………… 13
2 - 4 - 4 大 気 お よ び 海 水 中 の SF6 濃 度 の 算 出 … … … … … … … … … … … … … … … 1 4
2-5 分析条件の決定 …………………………………………………………………… 15
2-5-1 トラップ保持最大時間の確認 ……………………………………………… 15
2-5-2 脱気時間（トラップ時間）の決定 ………………………………………… 15
2-5-3 バックフラッシュ時間の決定 ……………………………………………… 16
2-6 分析システムの保守・管理 ……………………………………………………… 17

３．標準ガスと標準化…………………………………………………………………… 18
3 - 1 M R I SF6 C a l i b r a t i o n s c a l e … … … … … … … … … … … … … … … … … … … … 1 8
3-2 ワーキングスタンダードガスの検定・管理 …………………………………… 19
3-2-1 １次標準ガスによるワーキングスタンダードガスの検定 ……………… 19
3-2-2 ワーキングスタンダードガス検定値のモニター ………………………… 20
3-2-3 ワーキングスタンダードガスの現場での使用 …………………………… 21
3-2-4 ワーキングスタンダードガスの最終検定 ………………………………… 21
3-2-5 現場データの標準化 ………………………………………………………… 21
3-3 検量線 ……………………………………………………………………………… 21

４．分析システムの性能と観測例……………………………………………………… 23
4-1 分析システムの性能 ……………………………………………………………… 23
4-1-1 繰り返し分析精度 …………………………………………………………… 23
4-1-2 検出限界 ……………………………………………………………………… 24
4-2 観測例 ……………………………………………………………………………… 24
4-2-1 大気試料分析 ………………………………………………………………… 24
4-2-2 海水試料分析 ………………………………………………………………… 24
4-3 最後に ……………………………………………………………………………… 26

参考文献…………………………………………………………………………………… 27

ߪ ߓ ߼ ߦ ᦨ ߽ ᒝ ജ ߥ ᷷ ቶ ല ᨐ ⢻ ࠍ ᜬ ߟ ࠟ ࠬ ߩ ৻ ߟ ߣ ߒ ߡ ⍮ ࠄ ࠇ ࠆ ౐ ࡈ ࠶ ൻ ⎫ 㤛㧔 SF6㧕ߪ ‫ޔ‬੩ ㇺ ⼏ ቯᦠ ߩ ೥ ᷫ ኻ ⽎ ࠟ ࠬ ߩ ৻ ߟ ߦ ޽ ߍ ࠄ ࠇ ߡ ޿ ࠆ ‫ ⼏ ࡞ ࡯ ࠝ ࡝ ࠻ ࡦ ࡕޕ‬ቯ ᦠ ߦ ߅ ޿ ߡ ኻ ⽎ ‛ ⾰ ߣ ߥ ߞߡ ޿ ࠆ ࠢ ࡠ ࡠ ࡈ ࡞ ࠝ ࡠ ࠞ ࡯ ࡏ ࡦ 㘃 㧔 CFCs㧕 ߪ ߘ ߩ ઍ ᦧ ຠ 㧔 ઍ ᦧ ࡈ ࡠ ࡦ 㧕 ߩ ૶ ↪ ߦ ࠃ ߞ ߡ Ꮏᬺᵴേߦᡰ㓚ࠍ߈ߚߔߎߣ߇ߥߊߥߞߚߚ߼‫ޔ‬ᣢߦవㅴ࿖ߢߪߘߩ⵾ㅧ߇⑌ᱛߐࠇߡ޿ࠆ‫ޕ‬ߒ ߆ ߒ SF6 ߦ ߟ ޿ ߡ ߪ ‫ ․ ߩ ߘ ޔ‬ᱶ ᕈ ߆ ࠄ ੹ ᓟ ߽ ᒰ 㕙 ߪ Ꮏ ᬺ ⇇ ߦ ߅ ޿ ߡ ᔅ ⷐ ߥ ‛ ⾰ ߢ ޽ ࠅ ‫ో ޔ‬ᑄ ߣ ⸒ ߁ ᒻ ߢ ߪ ߥ ߊ ‫ ⵾ޔ‬ㅧ ߪ ߔ ࠆ ߇ ᄢ ᳇ ߳ ߩ ᡼ ಴ ㊂ ࠍ ᦨ ዊ 㒢 ߦ ᛥ ߃ ࠆ ߎ ߣ ߢ ೥ ᷫ ⋡ ᮡ ࠍ ㆐ ᚑߒࠃ߁ߣߐࠇߡ߅ࠅ‫੹ޔ‬ᓟ߽ߘߩᄢ᳇ਛߩỚᐲߪჇടߔࠆߎߣ߇੍ᗐߐࠇࠆ‫ޕ‬ SF6 ߪ ᷷ ቶ ല ᨐ ᳇ ૕ ߣ ޿ ߁ ⽶ ߩ ஥ 㕙 ߩ ߺ ߢ ߥ ߊ ‫ޔ‬C F C s ߥ ߤ ߣ ห ᭽ ߦ ࿾ ⃿ ⑼ ቇ ߩ ಽ ㊁ ߢ ൻ ቇ࠻ ࡟ ࡯ ࠨ ࡯ ߣ ߒ ߡ ቇ ⴚ ೑ ↪ ߢ ߈ ࠆ ߣ ޿ ߁ ᱜ ߩ ஥ 㕙 ߽ ߽ ߜ ว ࠊ ߖ ߡ ޿ ࠆ ‫ ⵾ ߦ ․ޕ‬ㅧ ߿ ૶ ↪ ߩ ᑄᱛ ߦ ઻ ߞ ߡ ᄢ ᳇ ߢ ߩ ᷫ ዋ ߇ ੍ ᗐ ߐ ࠇ ࠆ CFCs ߦ ઍ ࠊ ࠆ ᣂ ߚ ߥ ൻ ቇ ࠻ ࡟ ࡯ ࠨ ࡯ ߣ ߒ ߡ ᄢ ޿ ߦ ᦼᓙ ߐ ࠇ ߡ޿ࠆ ‫ޔߒ ߆ ߒޕ‬ᄢ᳇ ਛ ߩỚ ᐲ ߿ ᶏ᳓ߦ ኻ ߔ ࠆṁ⸃ ᐲ ߩ ૐߐ߆ ࠄ ߘ ߩ᷹ቯ ߪ ᭂ ߼ߡ࿎㔍 ߢ ޽ ࠆ‫ ࡯ࠨ࡯ ࡟ ࠻ ߩߘ߼ ߚ ߩ ߘޕ‬೑ ↪ ߪ‫ޔ‬Ყ セ ⊛ ಽᨆ߇ ኈ ᤃ ߥᄢ᳇ ⹜ ᢱ ߩಽᨆ ߦ ࠃ ࠆᄢ᳇ᓴ Ⅳ ߣ ᷙ ว ㆊ ⒟ ߩ ⎇ ⓥ ߿ ‫ ޔ‬ᶏ ᵗ ߿ ḓ ᴧ ߦ ᄢ ㊂ ߩ SF6 ࠍ ᵈ ౉ ߒ ߘ ࠇ ࠍ ಽ ᨆ ߔ ࠆ ߎ ߣ ߦ ࠃ ࠆ ᳓ ߩᓴ Ⅳ ߿ ᳇ ૕ ੤ ឵ ㆊ ⒟ ߩ ⎇ ⓥ ߦ 㒢 ቯ ߐ ࠇ ߡ ߈ ߚ ‫ ߒ ߆ ߒ ޕ‬CFCs ߦ ઍ ࠊ ࠆ ᶏ ᵗ ߩ ᓴ Ⅳ ߩ ᄌ േ ᕈ ࠍ⎇ ⓥ ߔ ࠆ ਄ ߢ ߪ ‫ޔ‬ᄢ ᳇ ߆ ࠄ ᶏ ᵗ ⴫ 㕙 ߢ ߩ ࠟ ࠬ ੤ ឵ ߦ ࠃ ߞ ߡ ᶏ ᵗ ߦ ߽ ߚ ࠄ ߐ ࠇ ߚ ޿ ࠊ ߫ ࡃ ࠶ ࠢࠣ ࡜ ࠙ ࡦ ࠼ ߩ SF6 ࠍ 㜞 ♖ ᐲ ߦ ᷹ ቯ ߔ ࠆ ߎ ߣ ߇ ᔅ ⷐ ߣ ߥ ࠆ ‫ ߣ ࠇ ߘ ޕ‬ห ᤨ ߦ ੹ ᓟ ࠺ ࡯ ࠲ ࠍ ቯ ᦼ ⊛ߦ ข ᓧ ߒ Ყ セ ߒ ߡ ޿ ߊ ਄ ߢ ᷹ ቯ ࠺ ࡯ ࠲ ߩ ”ࠬ ࠤ ࡯ ࡞ ”ߣ ߥ ࠆ ”ᮡ Ḱ ‛ ⾰ ”ࠍ ⛽ ᜬ ߒ ⛯ ߌ ࠆ ߎ ߣ ߽߈ࠊ߼ߡ㊀ⷐߣߥࠆ‫ޕ‬ ᧄ ⎇ ⓥ ߢ ߪ ‫ ޔ‬ᶏ ᳓ ਛ ߩ ṁ ሽ CFCs 㜞 ♖ ᐲ ಽ ᨆ ߦ ታ ❣ ߩ ޽ ࠆ ⪺ ⠪ ࠄ ߇ ‫ ޔ‬ណ ข ᛛ ⴚ ߣ ಽ ᨆ ࠪ ࠬ࠹ ࡓ ߩ 㜞 ᐲ ߥ ᷡ ᵺ ൻ ߦ ࠃ ࠅ ‫ ޔ‬SF6 ߩ ࠃ ࠅ 㜞 ♖ ᐲ ߢ ૐ ᬌ ಴ 㒢 ⇇ ߩ ᶏ ᳓ ਛ ṁ ሽ SF6 ಽ ᨆ ߩ ታ ⃻ ࠍ⋡ ⊛ ߣ ߒ ߡ ಽ ᨆ ᛛ ⴚ ࠍ 㐿 ⊒ ߒ ߚ ‫ ╙ ߕ ߹ ޔ ߪ ߡ ޿ ߅ ߦ ⺰ ᧄ ޕ‬㧝 ┨ ߢ ‫ ޔ‬SF6 ߣ ߪ ޿ ߞ ߚ ޿ ߤ ߩ ࠃ߁ ߥ ߽ ߩߢ‫ޔ‬࿾⃿ ਄ ߦ߅ ޿ ߡ ߤߩࠃ ߁ ߥ ᜼േࠍ ߒ ߡ ޿ࠆߩ ߆ ࠍ ㅀߴࠆ ‫ ╙ޕ‬㧞 ┨ߦ ߅ ޿ ߡߪ㜞♖ ᐲ ‫ ޔ‬ૐ ᬌ ಴ 㒢 ⇇ ࠍ ㆐ ᚑ ߒ ߚ SF6 ߩ ಽ ᨆ ᣇ ᴺ ࠍ ⸥ ㅀ ߔ ࠆ ‫ ╙ ߦ ࠄ ߐ ޕ‬㧟 ┨ ߢ ߪ ‫ ޔ‬ᄢ ᳇ ߅ ࠃ ߮ ᶏ᳓ ਛ SF6 ߩ ᮡ Ḱ ൻ ߩ ߚ ߼ ߦ ↪ ޿ ࠄ ࠇ ߡ ޿ ࠆ ᮡ Ḱ ࠟ ࠬ 㧔 M R I SF6 C a l i b r a t i o n S c a l e 㧕 ߦ ߟ ޿ ߡㅀߴࠆߎߣߣߔࠆ‫ޕ‬

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1. 六フッ化硫黄(SF6)について㩷㪈㪄㪈㪅㩷 㪪㪝㪍 䈫䈲㩷 SF6 ߪ‫⚛࠶ࡈޔ‬㧔F㧕ߣ⎫㤛㧔S㧕߆ࠄߥࠆൻว‛ߢ޽ࠆ‫ޕ‬Ᏹ᷷ᄢ᳇࿶ਅߢߪൻቇ⊛ߦᭂ߼ߡ቟ቯᐲ߇㜞ߊ‫ޔ‬ήᲥ‫ޔ‬ή⥇‫ޔ‬ή⦡‫ޔ‬ਇΆᕈߩ㜞޿᳇૕ߢ޽ࠆ㧔Table 1㧕‫ޕ‬1960 ᐕઍ߆ࠄ㔚ജଏ⛎ࡊ࡜ࡦ࠻ߦ߅ߌࠆⵝ⟎߿㔚ሶᯏེߩ⛘✼᧚ߣߒߡ‫ޔ‬߹ߚࠕ࡞ࡒ࠾࠙ࡓ࡮ࡑࠣࡀࠪ࠙ࡓߩ♖㍰ᤨߦ૶↪ߔࠆߚ߼⵾
ㅧߐࠇࠆࠃ߁ߦߥߞߡ߈ߚ‫ޕ‬ ⃻࿷ߩߘߩᄢ᳇ਛỚᐲߪᭂ߼ߡૐ޿‫ޔߒ߆ߒޕ‬Maiss et al.
(1996)ߪ‫ޔ‬1970 ᐕ㗃ߩᄢ᳇ਛ SF6 Ớᐲ߇ 0.03ppt㧔0.03
10-12㧕⒟ᐲߢ޽ߞߚߩߦኻߒ‫ޔ‬1990 ᐕ㗃ߦߪ 3ppt ߦ㆐ߒߚߎߣࠍႎ๔ߒߡ߅ࠅ‫ޔ‬ㄭᐕᕆỗߦჇടࠍ⛯ߌߡ޿ࠆ᳇૕ߩ৻
ߟߢ޽ࠆ‫ޕ‬

Table 1-1 Physicality of SF6.
ൻቇᑼ
ಽሶ㊂
᣹⪇ὐ
Ⲣὐ
ᴣὐ

㪪㪝㪍
㪈㪋㪍㪅㪇㪌
㪄㪍㪊㪅㪐㷄䋨㪈㪸㫋㫄䋩㪄㪌㪇㪅㪏㷄䋨㪉㪉㪋㫂㪧㪸䋩㪄㪍㪊㪅㪐㷄䋨㪈㪸㫋㫄䇮᣹⪇䋩᷷ᐲ㪋㪌㪅㪍㪇㷄
⥃⇇ቯᢙ ࿶ജ
㪊㪎㪍㪋㫂㪧㪸
ኒᐲ㪎㪉㪐㫂㪾㪆㫄㪊
Ყ㊀䋨ⓨ᳇㪔㪈䋩 㪌㪅㪈㪈䋨㪉㪇㷄䇮㪈㪸㫋㫄䋩䋨᳇૕䋩㪍㪅㪇㪋㫂㪾㪆㫄㪊䋨㪉㪌㷄䇮㪈㪸㫋㫄䋩ኒᐲ䋨ᶧ૕䋩㪈㪊㪊㪐㫂㪾㪆㫄㪊䋨㪉㪌㷄䋩㪈㪉㪍㪋㫂㪧㪸䋨㪇㷄䋩⫳᳇࿶㪉㪈㪇㪐㫂㪧㪸䋨㪉㪇㷄䋩㪊㪊㪉㪎㫂㪧㪸䋨㪋㪇㷄䋩⴫㕙ᒛജ㪏㪅㪇㪉㫄㪥㪆㫄䋨㪄㪉㪇㷄䋩䋨᳇૕䋩㪈㪅㪌㬍㪈㪇㪄㪌㪧㪸䊶㫊䋨㪉㪌㷄䇮㪈㪸㫋㫄䋩☼ᐲ䋨ᶧ૕䋩㪉㪎㪅㪎㬍㪈㪇㪄㪌㪧㪸䊶㫊䋨㪉㪌㷄䋩ዮ᛬₸㪈㪅㪇㪇㪇㪎㪏㪊䋨㪇㷄䇮㪈㪸㫋㫄䋩⛘✼ᴤ䈻䈱ṁ⸃ᐲ㪇㪅㪋㪇㪏㫄㪣㪪㪝㪍㪆㫄㪣ᴤ᳓䈻䈱ṁ⸃ᐲ
㪇㪅㪇㪇㪍㪊㫄㪣㪪㪝㪍㪆㫄㪣᳓㪪㪝㪍䈻䈱᳓䈱ṁ⸃ᐲ 㪇㪅㪇㪈㩼⛘✼⠴ജ㪉㪅㪊㺷㪉㪅㪌䋨㪥㪉㪔㪈䋩⺃㔚₸㪈㪅㪇㪇㪉䋨㪉㪌㷄䇮㪈㪸㫋㫄䋩⺃㔚ᱜធ㪔㫋㪸㫅㱐䋼㪉㬍㪈㪇㪄㪎䋨㪉㪌㷄䇮㪈㪇㪈㫂㪧㪸䋩㪈㪄㪉㪅㩷 ᷷ቶലᨐ᳇૕䈫䈚䈩䈱 㪪㪝㪍㩷
 SF6 ߪ‫ޔ‬ੑ㉄ൻ὇⚛Ყߢߩ࿾⃿᷷ᥦൻଥᢙ(GWP100)߇ 23900 ߣᭂ߼ߡᄢ߈ߊ‫ߩߘߚ߹ޔ‬቟ቯᕈ߆ࠄᄢ᳇ਛߢ
ߩኼ๮߇ 3200 ᐕߣᭂ߼ߡ㐳޿ߚ߼‫ޔ‬㐳ᦼߦࠊߚࠆⅣႺ߳ߩᓇ㗀߇⠨ᘦߐࠇࠆ‫ ߼ߚߩߘޕ‬1997 ᐕߩ࿾⃿᷷ᥦൻ㒐ᱛ੩ㇺળ⼏㧔╙㧟࿁᳇୥ᄌേᨒ⚵᧦⚂✦⚂࿖ળ⼏‫ޔ‬COP3㧕ߦ߅޿ߡੑ㉄ൻ὇⚛㧔CO2㧕‫ࡦ࠲ࡔޔ‬㧔CH4㧕‫৻ޔ‬㉄ൻੑ⓸⚛㧔N2O㧕‫ࡦࡏ࡯ࠞࡠࠝ࡞ࡈࡠ࠼ࠗࡂޔ‬㘃㧔HFCs㧕‫ࡦࡏ࡯ࠞࡠࠝ࡞ࡈ࡯ࡄޔ‬㘃㧔PFCs㧕ߣߣ߽ߦ೥ᷫ
ኻ⽎‛⾰ߦᜰቯߐࠇߚ㧔᳇୥ᄌേߦ㑐ߔࠆ࿖㓙ㅪวᨒ⚵᧦⚂ߩ੩ㇺ⼏ቯᦠ㧕‫ޔߣࠆࠃߦࠇߎޕ‬1990 ᐕ㧔ߚߛߒ‫ޔ‬
HFCs‫ޔ‬PFCs ߅ࠃ߮ SF6 ߪ 1995 ᐕ㧕ߩឃ಴㊂ࠍၮḰߦ‫ޔ‬2008 ᐕ߆ࠄ 2012 ᐕ߹ߢߩవㅴ࿖ో૕ߢੑ㉄ൻ὇⚛
឵▚ߢ㧡㧑㧔ᣣᧄߪ㧢㧑㧕೥ᷫߔࠆߣ޿߁߽ߩߢ޽ࠆ‫ޔߒߛߚޕ‬SF6 ߪ㔚ജߩ቟ቯଏ⛎ߩߚ߼ߦᔅⷐਇนᰳߢ޽
ࠅ‫ߩߘߚ߹ޔ‬ઍᦧ‛⾰ߩ㐿⊒߇ㅴࠎߢ޿ߥ޿ߚ߼‫⃻ޔ‬࿷߽ߘߩ૶↪ߪ⛮⛯ߐࠇ‫ޔ‬᡼಴ࠍᛥ߃ࠆദജ߇ᛄࠊࠇߡ޿
ࠆߦߔ߉ߥ޿‫ޕ‬㪈㪄㪊㪅㩷 ᄢ᳇ਛ䈮䈍䈔䉎 㪪㪝㪍㩷
 Harnisch and Eisenhauer (1998)ߪ‫࡞࠲ࡎޔ‬⍹㧔fluorite‫ޔ‬CaF2㧕ਛߢߩ SF6 ߦߟ޿ߡ⸥ㅀߒ‫ޔ‬ᄢ㒽࿾Ზ߇
SF6 ࠍ⾂⬿ߒᄢ᳇߳ଏ⛎ߒߡ޿ࠆน⢻ᕈࠍ␜ໂߒߚ‫ߩߘޔߒ߆ߒޕ‬ᄢ᳇߳ߩነਈߪᭂ߼ߡዊߐߊ‫ޔ‬ᄢ᳇Ớᐲߦߒߡ߅ࠃߘ 0.01ppt ಽ߇࿾Ზ↱᧪ߩ SF6 ߢ޽ࠆߣߒߡ޿ࠆ‫⥄ޕ‬ὼ⇇ߦ߅ߌࠆ SF6 ߩᄢ᳇߳ߩଏ⛎Ḯߪ⃻࿷ߩߣߎࠈߘߩ߶߆ߦႎ๔ߐࠇߡ޿ߥ޿ߎߣ߆ࠄᄢ᳇߳ߩ SF6 ߩଏ⛎Ḯߪੱ㑆ᵴേߦ઻߁߽ߩ߇߶߷ߔߴߡߢ޽ࠆߣ⸒
ߞߡ߽ㆊ⸒ߢߪߥ޿‫ޕ‬
 Figure 1-1 ߦ SF6 ߩᄢ᳇ਛỚᐲߩᄌㆫࠍ‫ޔ‬CFCs㧔CFC-11, CFC-12, CFC-113㧕ߩߘࠇߣวࠊߖߡ␜ߔ‫ߕ޿ޕ‬ࠇ߽ 1960 ᐕએ㒠ߩᎿᬺᵴേߩᵴ⊒ൻߦߣ߽ߥߞߡᕆỗߦߘߩᄢ᳇ਛỚᐲ߇Ⴧടࠍᆎ߼ߡ޿ࠆ‫ޕ‬SF6 ߇ CFCs ߣᄢ߈ߊ⇣ߥࠆߩߪ‫ޔ‬CFCs ߇ࡕࡦ࠻࡝ࠝ࡯࡞⼏ቯᦠߩ⊒ലߦࠃߞߡ 1990 ᐕએ㒠Ⴧടㅦᐲ߇ૐਅߒᆎ߼ߚߩߦኻ
−1−

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SF6

CFC-12
CFC-11
CFC-113
600

8
7

500
400

5
4

300

3

200

CFCs (ppt)

SF6(ppt)

6

2
100

1
0
1950

0
1960

1970

1980
Year

1990

2000

Figure 1-1 Time evolution of atmospheric SF6, CFC-11, CFC-12 and CFC-113. This figure is based on Walker et al. (2000), Maiss andBrenninkmeijer (1998) and Bullister et al. (2002).

ߒ‫ޔ‬SF6 ߪ੹ߥ߅ᄢ᳇ਛߢỚᐲࠍ਄᣹ߐߖ⛯ߌߡ޿ࠆߎߣߢ޽ࠆ‫ޕ‬ ೨ㅀߒߡ߈ߚࠃ߁ߦ SF6 ߪᄢ᳇ਛߦ߅޿ߡᭂ߼ߡ቟ቯߢ޽ࠅ‫ޔ‬ᄢ᳇ਛߢߩኼ๮ߪᭂ߼ߡ㐳޿‫ޔ߼ߚߩߘޕ‬ᄢ᳇ਛߢߩ SF6 ߩỚᐲߪ᳇႙ߩᷙวㆊ⒟ߢߩߺᄌൻߔࠆ଻ሽᚑಽߣߒߡขࠅᛒ߁ߎߣ߇ߢ߈ࠆ‫ޕ‬㩷㪈㪄㪋㪅㩷 ᶏᵗ䈮䈍䈔䉎 㪪㪝㪍㩷 ᄢ᳇ਛߦ᡼಴ߐࠇߚ SF6 ߩ৻ㇱߪᶏᵗ߽߳⒖ⴕߒߡ޿ߊ‫ޕ‬ᄢ᳇߆ࠄᶏᵗ߽߳ߚࠄߐࠇࠆ SF6 ߪ‫ߡߴߔ߷߶ޔ‬߇ᶏ㕙ߦ߅ߌࠆ᳇૕੤឵ㆊ⒟ࠍ⚻ߡ޿ࠆߣ⠨߃ࠄࠇࠆ‫ޕ‬ᶏᵗ⴫㕙ߦ߅ߌࠆ SF6 ߩᐔⴧ(㘻๺)Ớᐲ [SF6]eq ߪHenry ߩᴺೣߦᓥ޿‫ޔ‬ᄢ᳇ਛಽ࿶(PSF6air)ߣ‫ޔ‬Figure 1-2 ߢ␜ߒߚᶏ᳓ߩႮಽߣ᳓᷷ߩ㑐ᢙߢ⴫ߐࠇࠆṁ⸃ᐲ
(Sol.)ߣ᳇࿶(Press.)ߩⓍ[SF6]eq = PSF6air ×Sol. × Press.

ߢ⴫ߐࠇࠆ㧔Figure 1-3 Bullister et al. 2002㧕‫ޕ‬ᶏ᳓ߦ߅޿ߡ߽ SF6 ࠍಽ⸃ߔࠆㆊ⒟ߪሽ࿷ߒߡ޿ߥ޿ߎߣ߆ࠄ‫ޔ‬ᶏ᳓ߦṁߌߚ SF6 ߪᶏ᳓ߩേ߈ߦᓥߞߡ⒖േߒߡ޿ߊߎߣߣߥࠆ‫ ߼ߚߩߘޕ‬CFCs ห᭽ߦᶏ᳓ߩേ߈ࠍㅊ〔ߔࠆൻቇ࠻࡟࡯ࠨ࡯(ㅊ〔ሶ)ߣߒߡ‫ޔ‬ᶏᵗቇߩಽ㊁ߢߩ೑↪߇ᦼᓙߐࠇߡ޿ࠆ‫ޕ‬㪈㪄㪌㪅㩷 ࿾⃿ൻቇ䊃䊧䊷䉰䊷䈫䈚䈩䈱 㪪㪝㪍㩷 ᦨ߽ೋᦼߩᄢ᳇ߦ߅ߌࠆ SF6 Ớᐲߩ᷹ቯ୯ߪ Lovelock (1971)ߦࠃߞߡႎ๔ߐࠇߚ‫ߩߘޕ‬ਛߢᓐߪ 1970 ᐕߦ߅ߌࠆᄢ᳇ਛ SF6 ᷹ቯ୯ࠍ 0.03ppt ߣႎ๔ߒߡ޿ࠆ‫ޕ‬Elias et al. (1976)‫ޔ‬
Krey et al. (1977)޽ࠆ޿ߪ Singh et al.
(1977)ߦࠃߞߡႎ๔ߐࠇߚ 1970 ᐕઍߩᄢ᳇ਛ SF6 ᷹ቯ୯ߪ‫ ߽ࠇߕ޿ޔ‬1ppt એਅߢ޽ߞߚ‫ߩߘޕ‬ᓟ‫ޔ‬ฦ࿾ߢ᷹ⷰ߇ታᣉߐࠇ㧔଀߃߫ Hirota and Muramatsu 1986‫ޔ‬Ko et al. 1993 ઁ㧕‫ߩߘޔ‬Ⴧട߇ႎ๔ߐࠇߡ߈ߚ‫ޕ‬Maiss andLevin (1994)߿ Maiss and Breninkmeijer (1998)ߪᓐࠄߩ㜞♖ᐲ㐳ᦼࡀ࠶࠻ࡢ࡯᷹ࠢⷰߦࠃࠆ୯ߣㆊ෰ߩ᷹ⷰ
୯‫ੱߦࠄߐޔ‬㑆ᵴേߦࠃࠅᄢ᳇ߦ᡼಴ߐࠇߚ SF6 ㊂ࠍ߽ߣߦ 1970 ᐕએ㒠ߩᄢ᳇ਛ SF6 ߩᤨ♽೉ࠍ૞ᚑߒ‫ޔ‬1990ᐕઍ೨ඨߩᐕჇട₸߇ታߦ 8㧑ࠍ⿥߃ߡ޿ߚߎߣࠍႎߓߚ‫ޕ‬−2−

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0.7
Solubility (mol/kg/atm)

0.6
Sal=0
Sal=35
Sal=30

0.5
0.4
0.3
0.2
0.1
-5

0

5

10
15
20
Temperature (͠

25

30

35

Figure 1-2 Temperature dependence of solubility for SF6 in water and seawater.

Saturated SF6 (fmol/kg)

2
Sal=35, Temp.=5C
Sal=35, Temp.=25C

1.5

1

0.5

0
1950

1960

1970

1980
Year

1990

2000

2010

Figure 1-3 Time history of concentration of saturated SF6 in surface seawater.

 Maiss et al. (1996)߿ Geller et al. (1997)ߪ‫ޔ‬SF6 ߩሶඦ✢ᣇะߩಽᏓ߆ࠄධർඨ⃿ߢߩ᳇૕੤឵ㅦᐲࠍ⷗Ⓧ߽ߞߡ޿ࠆ‫ ߚ߹ޕ‬Elkins et al. (1996) ߪ‫ޔ‬ᄢ᳇࿤ߢߩ SF6 ߩ㋦⋥ⓨ㑆ಽᏓࠍឬ޿ߚ‫⚿ߩߘޕ‬ᨐߪ‫ޔ‬CFCs ߇ሽ࿷ߒߥ޿㜞ጀߦ߅޿ߡ߽ SF6 ߇ሽ࿷ߒߡ޿ࠆߣ޿߁߽ߩߢ‫ޔ‬ᄢ᳇࿤ߦ߅ߌࠆߘߩ‛⾰ߩᭂ߼ߡ㐳޿ኼ๮ࠍ␜ໂߒߚ‫ޕ‬
Strunk et al. (2000)ߪ‫ޔ‬ᄢ᳇࿤㋦⋥ಽᏓ᷹ⷰࠍਛ㑆࿤ߦ߹ߢ᜛ᒛߒ‫ ߩߢߎߘޔ‬SF6 ಽ⸃ߩน⢻ᕈࠍ␜ߒߚ‫ޕ‬ Levin and Hesshaimer (1996)߿ Kjellström et al. (2000)ࠍߪߓ߼ᢙᄙߊߩ⎇ⓥ߇‫ޔ‬ᄢ᳇ᓴⅣࡕ࠺࡞⎇ⓥߢߩ
಴ജࠍ⹏ଔߔࠆߚ߼ߦᄢ᳇ਛ SF6 ߩ᷹ቯ୯ࠍ↪޿ߡ߈ߚ‫ޕ‬ ᳓࿤ߦ߅ߌࠆ⎇ⓥߪ‫ޔ‬1980 ᐕઍਛ㗃ߦᆎ߹ߞߚ‫ޔߪ߼ߓߪޕ‬SF6 ߩᄢ᳇ਛỚᐲ෸߮ḓ᳓‫ޔ‬ᶏ᳓޽ࠆ޿ߪ࿾ਅ
᳓߳ߩṁ⸃ᐲ߇ૐ޿ߎߣ߆ࠄ‫ߩߘޔ‬᷹ቯ߇࿎㔍ߛߞߚ߇‫ޔ‬1984 ᐕߦ߅ߌࠆർ᧲ᄢ⷏ᵗߦ߅ߌࠆ㋦⋥ಽᏓ߇
Watson et al. (1985)ߦࠃࠅႎ๔ߐࠇߡ޿ࠆ‫ޕ‬ᓐࠄߪࡋ࠶࠼ࠬࡍ࡯ࠬᴺߦࠃࠆ᷹ቯ⚿ᨐߣߒߡ‫ޔ‬ᷓጀ᳓ߩᒻᚑߐ
ࠇࠆߎߩᶏၞߢ SF6 ߇᳓ᷓ߅ࠃߘ 1000m ߦ߹ߢ⽾౉ߒߡ޿ࠆߎߣࠍႎ๔ߒߚ‫ޕ‬−3−

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2007 ߒ߆ߒ‫ޔ‬ᄢ᳇߆ࠄ᳓㕙㧔ᶏ㕙߿ḓ㕙㧕ࠍㅢߒߡ᳓࿤ߦṁ౉ߒߚ޿ࠊ߫ࡃ࠶ࠢࠣ࡜࠙ࡦ࠼ SF6 ࠍᛒߞߚ⎇ⓥߪ
ᒰᤨ߹ࠇߢ‫ޔ‬ᄙߊߪ㜞Ớᐲߦ SF6 ߇ṁ⸃ߒߚṁᶧࠍ᳓࿤ߦੱᎿ⊛ߦࠬࡄࠗࠢߒ‫ߩߘޔ‬⒖േ߿᜛ᢔߩ᭽ሶࠍㅊ〔ߔࠆ⎇ⓥߢ޽ߞߚ‫ޕ‬Wanninkhof et al. (1985)ߪ‫ޔ‬਎⇇ߦవ㚟ߌߡ SF6 ࠬࡄࠗࠢታ㛎ࠍ࠾ࡘ࡯࡛࡯ࠢᎺ Rockland
Lake ߢⴕ޿‫ޔ‬᳇࿤-᳓࿤㑆ߩࠟࠬ੤឵ଥᢙࠍ㘑ㅦߩ㑐ᢙߣߒߡ⴫ߒߚ‫ޕ‬Upstill-Goddard et al. (1990)߽߹ߚ‫ޔ‬ḓߢߩ SF6 ࠬࡄࠗࠢታ㛎ࠍⴕߞߚ‫ޕ‬ ᶏᵗߦ߅޿ߡߪ‫ ߚߒࠢࠗࡄࠬޔ‬SF6 ߩ㜞Ớᐲߩࡄ࠶࠴ࠍㅊ޿߆ߌࠆߎߣߢᶏ᳓ߩャㅍ‫ޔ‬ᷙวㆊ⒟߇⎇ⓥߐࠇ
ߡ߈ߚ㧔Watson et al. 1991a‫ޔ‬Ledwell and Watson 1991‫ޔ‬Law et al. 1998‫ޔ‬Dillon et al. 1999 ઁ㧕‫ޔߚ߹ޕ‬
Watson et al. (1991b)ߪ‫ޔ‬SF6 ߣวࠊߖߡ 3He ࠍᶏᵗߦࠬࡄࠗࠢߒ‫ޔ‬SF6 ࠍャㅍ‫ޔ‬ᷙวߩ࠻࡟࡯ࠨ࡯ߦ‫ ߚ߹ޔ‬3He
ࠍ᳇૕੤឵ߩ࠻࡟࡯ࠨ࡯ߣߒߡ↪޿ߚ‫ޕ‬
 2000 ᐕઍߦߥߞߡࠃ߁߿ߊࠬࡄࠗࠢߦࠃࠄߕߦᄢ᳇߆ࠄ߽ߚࠄߐࠇߚᶏ᳓ਛߩࡃ࠶ࠢࠣ࡜࠙ࡦ࠼ߩ SF6 ߩ᷹ቯ߇޿ߊߟ߆ⴕࠊࠇߚ㧔Law and Watson 2001‫ޔ‬Watanabe et al. 2003‫ޔ‬Tanhua et al. 2004 ߥߤ㧕‫ޔߪࠄࠇߘޕ‬޿ߕࠇ߽᳓႙߇ᶏ㕙ߦ޿ߚᤨ߆ࠄߤࠇߊࠄ޿ߩᤨ㑆ߢߘߎߦ೔㆐ߒߚ߆ࠍ⍮ࠆ‫࡯ࠨ࡯࡟࠻ޟ‬ᐕ㦂‫⷗ࠍޠ‬Ⓧ߽ࠆߚ߼ߦ↪޿ࠄࠇߡ޿ࠆ‫ ߪࠇߘޕ‬SF6 ߇‫ޔ‬CFCs ߩࠃ߁ߦa. ᄢ᳇ߦ߅ߌࠆỚᐲߩᤨ♽೉߇ࠊ߆ࠅ‫ޔ‬b. ᶏ᳓ߦኻߔࠆṁ⸃ᐲ߇ࠊ߆ࠅ‫ޔ‬c. ቟ቯߢ㕖ᵴᕈߥߚ߼ᷙวߩߺߦࠃߞߡߘߩỚᐲ߇ᄌൻߔࠆ଻ሽᚑಽߣߒߡᛒ߃ࠆ‫ޔ‬ൻቇ‛⾰ߢ޽ࠆߎߣߦ↱᧪ߔࠆ‫ޕ‬ ߹ߚ࿾ਅ᳓ߦߟ޿ߡ߽ᶏ᳓ห᭽ߦᐕ㦂⷗Ⓧ߽ࠅߩߚ߼ߦ↪޿ࠄࠇߡ޿ࠆ㧔଀߃߫ Bauer et al. 2001 ߥߤ㧕‫ޕ‬ ޿ߊߟ߆ߩ⎇ⓥ߇ᶏ᳓ߩ㜞♖ᐲಽᨆߩߚ߼ߦᛄࠊࠇߚ㧔Wanninkhof 1991‫ޔ‬Law et al. 1994‫ޔ‬Upstill-Goddard
et al. 1991 ߥߤ㧕‫ߪߢ⁁⃻ޔߒ߆ߒޕ‬ᶏ᳓ਛߩ SF6 ᬌ಴㒢⇇߇ 0.05fmol/kg㧔f: femto (10-15)㧕⒟ᐲߢ޽ࠅ‫ࠅࠃޔ‬ᷓ޿‫ࠅࠃޔ‬ฎ޿ᶏ᳓߳ߩᔕ↪ߪ㔍ߒ޿‫ޕ‬−4−

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2007

㩷

2.

分析方法

㩷
㪉㪄㪈㪅㩷 ㆐ᚑ⋡ᮡ㩷 ᧄ⎇ⓥߪ‫ޔ‬SF6 ࠍ㜞♖ᐲߦ᷹ቯߒ‫ޔ‬ᶏ᳓ਛߩ SF6 ߦߟ޿ߡࠃࠅᷓ޿᳓ᷓߩࠃࠅૐỚᐲߩ SF6 ࠍᬌ಴น⢻ߦߔࠆ߽ߩߢ޽ࠆ‫⎇ᧄޕ‬ⓥߩ㆐ᚑ⋡ᮡࠍᄢ᳇ਛỚᐲ࡟ࡌ࡞㧔߅ࠃߘ 6ppt㧕ߩࠟࠬ⹜ᢱ᷹ቯߦߟ޿ߡ 0.5%⒟ᐲߩ➅ࠅ㄰ߒ♖ᐲ‫ޔ‬ᶏ᳓ਛߩ SF6 ߩᬌ಴㒢⇇ࠍ 0.02fmol/kg ߣߔࠆ‫ߩࠄࠇߎޕ‬୯ߪ‫⃻ޔ‬࿷ߩᄢ᳇ߢߩᐕჇടㅦᐲߢ޽ࠆ 6%ߦᲧߴߡలಽዊߐߥ߽ߩߢ޽ࠅ‫ޔ‬ർᄥᐔᵗߦ߅ߌࠆਛጀઃㄭߩ᳓႙ߦߟ޿ߡ 1970 ᐕઍ೨ඨ㧔ᄢ᳇ਛỚᐲ߇ 0.2
㨪0.3ppt㧕߹ߢߩ᳓႙ᐕ㦂ࠍ᳿ቯน⢻ߦߔࠆ߽ߩߢ޽ࠆ‫ޕ‬㪉㪄㪉㪅㩷 㩷 ಽᨆ䉲䉴䊁䊛䈱᭎ⷐ㩷 㐿⊒ߒߚ SF6 ࠪࠬ࠹ࡓߪ‫ޔ‬ᄢ߈ߊಽߌࠆߣᰴߩ㧞ߟߩⵝ⟎߆ࠄߥࠆ‫ޕ‬a. ಽ㔌Ớ❗ⵝ⟎߅ࠃ߮ߘߩ೙ᓮㇱb. ᬌ಴ⵝ⟎㧔ࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡈ㧕ߣ࠺࡯࠲ಣℂㇱߘࠇߙࠇߩ⹦⚦ߦߟ޿ߡએਅߦ⸥ㅀߔࠆ‫ޕ‬㪉㪄㪉㪄㪈㪅㩷 㩷 ಽ㔌Ớ❗ⵝ⟎㩷 ᶏ᳓߅ࠃ߮ᄢ᳇ਛߩ SF6 ࠍಽᨆߔࠆߚ߼ߩ࡜ࠗࡦ࿑ࠍ Figure 2-1 ߦ␜ߔ‫ޕ‬ ṁሽ᳇૕ߩಽᨆߦ㓙ߒߡߩ⹜ᢱṁᶧ߆ࠄߩ⋡⊛ᚑಽߩಽ㔌Ớ❗ߦߪ‫ޔ‬a. Purge and Trap ᴺb. Head Space ᐔⴧᴺߩ㧞⒳㘃߇↪޿ࠄࠇࠆ‫ޕ‬೨⠪ߪ⋡⊛ᚑಽࠍ฽߹ߕ‫⊛⋡ߚ߹ޔ‬ᚑಽߣ෻ᔕߒߥ޿᳇૕㧔ࡄ࡯ࠫࠟࠬ㧕ࠍㅢߓࠆ᳇ᵃࠍ⹜ᢱṁᶧߦ⊒↢ߐߖࠆߎߣߢ‫⊛⋡ޔ‬ᚑಽࠍ᳇ᵃਛߦ⒖േߐߖ‫⊛⋡ޔ‬ᚑಽߦኻߒߡๆ⌕⢻ࠍ᦭ߔࠆలႯ᧚ߦㅢߕ

Figure 2-1 Schematic diagram of SF6 analytical system.
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2007ࠆߎߣߢ‫ޔ‬లႯ᧚਄ߦๆ⌕ߐߖࠆ㧔࠻࡜࠶ࡊ㧕‫ࠄ߆ࡊ࠶࡜࠻ߜߩߩߘޕ‬⣕⌕ߐߖᬌ಴ེߢ᷹ቯࠍⴕ߁ߎߣߢ⹜ᢱ
ṁᶧਛߩ⋡⊛ᚑಽߩỚᐲࠍ⷗Ⓧ߽ࠆᣇᴺߢ޽ࠆ‫৻ޕ‬ᣇᓟ⠪ߪ‫⹜ޔ‬ᢱṁᶧߣ⋡⊛ᚑಽࠍ฽߹ߕ‫ߚ߹ޔ‬෻ᔕߒߥ޿᳇
૕ࠍኒኽኈེਛߢធ⸅ߐߖࠆߎߣߢ‫ޔ‬᳇ᶧᐔⴧࠍ⏕଻ߒ‫ߩߘޔ‬᳇૕ਛߦሽ࿷ߔࠆ⋡⊛ᚑಽࠍ࠻࡜࠶ࡊߒߡ㧔⋭⇛ߔࠆ႐ว߽޽ࠆ㧕‫ޔ‬ᬌ಴ེߢ᷹ቯࠍⴕ߁ᣇᴺߢ޽ࠆ‫੹ޕ‬࿁‫ޔ‬ᶏ᳓ਛ SF6 ᷹ቯߩߚ߼ߦ↪ᗧߒߚߩߪ‫ޔ‬Purge andTrap ᣇᑼߦࠃࠆⵝ⟎ߢ޽ࠆ‫ޕ‬ ᧄⵝ⟎ߢߪ‫߮ࠃ߅ࠬࠟࠫ࡯ࡄޔ‬ᬌ಴ེౝߦ⋡⊛ᚑಽࠍዉߊࠠࡖ࡝ࠕࠟࠬߣߒߡ‫ޔ‬㜞⚐ᐲ⓸⚛ࠟࠬ (⚐ᐲ
99.99995%એ਄)ࠍ↪޿ߚ‫ޕ‬㜞⚐ᐲ⓸⚛ࠟࠬࠍ↪޿ߡߪ޿ࠆ߇‫ޔ‬㜞࿶ࠪ࡝ࡦ࠳࡯㧔ࡏࡦࡌ㧕ౝ߿ࡏࡦࡌߦขࠅઃ
ߌߚ⺞࿶ེ߆ࠄ಴ࠆࠊߕ߆ߥ SF6 ࠍ߽ቢోߦ㒰෰ߔࠆߚ߼‫ࠍࠬࠟ⚛⓸⚐ޔ‬ᵹߒߥ߇ࠄ 300͠ߢ 6 ᤨ㑆એ਄ࠛ࡯ࠫ
ࡦࠣߒߚ MS-13X ࠞ࡜ࡓࠍࡏࡦࡌ⺞࿶ེߩ޽ߣߦធ⛯ߒߡ૶↪ߔࠆ‫ ߩߎޕ‬MS-13X ࠞ࡜ࡓߪ㜞⚐ᐲ⓸⚛ࠟࠬߩᱷ࿶߇ᷫࠅ‫ࠍࡌࡦࡏޔ‬੤឵ߔࠆߏߣߦ‫ߣߩ߽ߚߒࠣࡦࠫ࡯ࠛޔ‬ขࠅ឵߃ߡ૶↪ߒߚ‫ ▤῎ੇࠬࠟࠕ࡝ࡖࠠޕ‬MS-13X
ࠞ࡜ࡓࠍㅢࠅ SF6 ╬߇㒰෰ߐࠇߚࡄ࡯ࠫࠟࠬߪ 5 ᣇߦಽጘߐࠇ‫ࠇߙࠇߘޔ‬࿶ജ⺞ᢛེ(PR)ߢ࿶ജ߇⺞ᢛߐࠇࠆ‫ޕ‬࿶ജ⺞ᢛེࠍㅢࠆߎߣߦࠃࠅౣ߮ SF6 ߩᳪᨴࠍฃߌࠆน⢻ᕈ߇޽ࠆߩߢ‫ߩࠇߙࠇߘޔ‬ᵹ〝ߦ MS-5A ࠞ࡜ࡓ
㧔M.S㧕ࠍขࠅઃߌࠆ‫ޔߪߡ޿ߟߦࠄࠇߎޕ‬PR-1 ᵹ〝ߩࡄ࡯ࠫࠟࠬߪᓟߦᢙಽ㑆 SF6 ╬߇Ớ❗ߐࠇࠆߎߣߣߥ
ࠆߩߢ‫ޔ‬㧞ㅳ㑆ߦ 1 ᐲ⒟ᐲ MS-5A ࠞ࡜ࡓࠍࠛ࡯ࠫࡦࠣߔࠆᔅⷐ߇޽ࠆ‫ ߦ․ޔߩ߽ߩ߆߶ߩߘޕ‬PR-3 ߣ PR-4ᵹ〝ߦߟ޿ߡߪ‫ࠄߚߞߥߦ߁ࠃࠆࠇࠄ⷗߇࠭ࠗࡁߦࡦࠗ࡜ࠬ࡯ࡌߩࡓ࡜ࠣ࠻ࡑࡠࠢޔ‬੤឵ߔࠆ‫ޕ‬ ᵹ〝ಾࠅ឵߃↪ߩߚ߼ߩࡃ࡞ࡉ㘃ߦߪ‫ߚ߹ޔߕߖ↪૶ࠍࠬ࡯࡝߽ࠣࠇߕ޿ޔ‬ᄢ᳇ਛߩ SF6 ߇᜛ᢔߦࠃࠅࡃ࡞
ࡉߩࡠ࡯࠲࡯ࠍㅢߒߡࠟࠬߩᵹ〝߿ࠨࡦࡊ࡞ਛߦᷙ౉ߔࠆߎߣࠍ㒐ߋߚ߼ߩᄖ᳇ㆤᢿ↪ࡄ࡯ࠫᵹ〝ߩઃ޿ߚ߽
ߩࠍ૶↪ߒߡ޿ࠆ‫ޔߚ߹ޕ‬A6P7‫ޔ‬A4P8 ߅ࠃ߮ A6P9 ߩࡃ࡞ࡉߪ‫ߩߘޔ‬ಾࠅ឵߃ߩ࠲ࠗࡒࡦࠣ߇ಽᨆ♖ᐲߦ㕖Ᏹߦᄢ߈ߥᓇ㗀ࠍਈ߃ࠆߚ߼‫ ߚ߹ޔ‬A4R14 ߅ࠃ߮ A8P6 ߩࡃ࡞ࡉߪᮡḰࠟࠬߩಽᨆࠍ⥄േ⊛ߦㅪ⛯ߒߡⴕ߁ߚ
߼ߦ‫࡯ࠕࠛޔ‬㚟േဳߩ⥄േࡃ࡞ࡉࠍ࠲ࠗࡓࠪ࡯ࠤࡦࠨ࡯ߣࠛࠕࠦࡦࡊ࡟࠶ࠨ࡯ߦࠃࠆ࿶❗ⓨ᳇ߢ೙ᓮߒߥ߇ࠄ↪
޿ߡ޿ࠆ‫ޕ‬Manual ߣ⸥ߐࠇߚ㧠ᣇಾ឵ࡃ࡞ࡉߪዉ౉ߔࠆᄢ᳇޽ࠆ޿ߪᮡḰࠟࠬ⹜ᢱࠍㆬᛯߢ߈ࠆࠃ߁ࡠ࡯࠲࡝
࡯ဳࡃ࡞ࡉࠍ↪޿ߡ޿ࠆ‫ޕ‬ ࠟ࡜ࠬ⵾ߩ⣕᳇╴ߦߪ‫ޔ‬ౝㇱߦ⋡ว޿ⷙᩰ G-2 ߥ޿ߒߪ G-3 ߩࡏ࡯࡞⁁ߩࠟ࡜ࠬࡈ࡝࠶࠻߇౉ߞߡ޿ࠆ‫ߘޕ‬ߩਔ┵ߪ O-࡝ࡦࠣࠍౝ⬿ߔࠆ Ultratorr Cajon ߢ࡜ࠗࡦߣធ⛯ߐࠇߡ޿ࠆ‫ޕ‬࡜ࠗࡦౝߩ㈩▤ߪ 1/8 ࠗࡦ࠴ߥ޿ߒߪ 1/16 ࠗࡦ࠴ߩ SUS316 ࠬ࠹ࡦ࡟ࠬ▤ࠍ↪޿‫ޔ‬ធ⛯ㇱߦߪ SWAGELOK ␠⵾ߩࠬ࠹ࡦ࡟ࠬ⵾࡙࠾ࠝࡦࠍ↪޿ߡ޿ࠆ‫ޕ‬ ⵝ⟎ߦ૶↪ߐࠇߡ޿ࠆࡄ࡯࠷㘃╬ߦߟ޿ߡౕ૕⊛ߦએਅߦ⸥ߔ‫᧚ེࠆߔ↪૶ߢߎߎޕ‬㘃ߪ‫⎇ᧄޔ‬ⓥߩ⋡⊛ߣߔࠆૐᬌ಴㒢⇇ࠍ㆐ᚑߔࠆߚ߼‫ߡߴߔޔ‬ᶏ᳓ਛ CFCs ಽᨆߦ૶↪น⢻ߥ SF6 ߦߟ޿ߡᭂ߼ߡ㜞ᐲߦᷡᵺൻߐࠇߚ
߽ߩࠍㆬࠎߛ‫ޕ‬a.ᵹ㊂⺞▵࡙࠾࠶࠻
࡮ࡏࡦࡌ⺞࿶ེ ፉᵤ⵾૞ᚲ␠⵾ ࠞࠬ࠲ࡓ V ઃ⺞࿶ེ N2 㧔R㧕࡮ࡔ࠲࡞࠳ࠗࡗࡈ࡜ࡓᑼࠬ࠻࠶ࡊࡃ࡞ࡉ SS-4H

㧔PR-1, 2, 3, 4㧕࡮ࡔ࠲࡞࠳ࠗࡗࡈ࡜ࡓᑼ࿶ജ⺞ᢛེ RD-3113

㧔PR-1, 2, 3, 4, 5㧕   ࿶ജ⺞ᢛ▸࿐㧦58.8㨪588kPa࡮࿶ജ⸘   ⋡⋓㧦0㨪1.0MPab.ࡑࠬࡈࡠ࡯ࠦࡦ࠻ࡠ࡯࡜ 㧔MFC㧕
࡮ᧄ૕㧦SEC-E40
−6−気象研究所技術報告

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࡮ធ⛯ࠤ࡯ࡉ࡞㧦SC-EH2-1M
c.᛽಴ㇱ࡙࠾࠶࠻
࡮ࠛࠕ࡯㚟േဳࠬ࠻࠶ࡊࡃ࡞ࡉ FPR-ND-91-6.35 㧔AST-1.2.5㧕࡮ࡔ࠲࡞࠳ࠗࡗࡈ࡜ࡓᑼࠬ࠻࠶ࡊࡃ࡞ࡉ SS-4H

㧔SST-3.4㧕࡮ᶧ㕙࠮ࡦࠨ࡯HPQ-T 㧔Level Sensor㧕࡮⣕᳇╴   ኈ㊂㧦300ml࡮㔚ሶ಄ළེ 㧔ECU㧕   ಄ළ᷷ᐲ㧦4͠
d.ዉ౉ㇱ࡙࠾࠶࠻
࡮ࠛࠕ࡯㚟േဳ 8 ᣇಾ឵ࡃ࡞ࡉ Valco A4C8UWE-PH 㧔A8P6㧕
࡮ࠛࠕ࡯㚟േဳ 6 ᣇಾ឵ࡃ࡞ࡉ Valco A4C6UWE-PH 㧔A6P7㧘A6P9㧕
࡮ࠛࠕ࡯㚟േဳ 4 ᣇಾ឵ࡃ࡞ࡉ Valco A4C4UWE-PH 㧔A4P8㧕
࡮᷷ᐲ࠮ࡦࠨ࡯ 㧔Temp. Sensor㧕   ࠮ࡦࠨ࡯ㇱ઀᭽㧦Pt-100࡮㒰Ḩ▤ 㧔Mg(ClO4)2㧕   లႯ‛㧦ㆊႮ⚛㉄ࡑࠣࡀࠪ࠙ࡓ㧔ర⚛ಽᨆ↪㧕   ᧚⾰㧦SUS316
࡮᷷ᐲ࠮ࡦࠨ࡯ᄌ឵࡙࠾࠶࠻   ࠕ࠽ࡠࠣ಴ജ㧦0㨪5Ve.ࠕ࠽ࡠࠣ᳇࿶ᄌ឵ེ PTB210   ࠕ࠽ࡠࠣ಴ജ㧦0㨪5V   㔚Ḯ㧦DC12V   ♖ᐲ㧦±0.3hPa
f.࠾࡯࠼࡞ࡃ࡞ࡉ NC-4B

㧔NV㧕

g.ࠛࠕ࡯ࠪ࡝ࡦ࠳࡯᣹㒠ེ㧔਄ਅ࡮Ꮐฝ㧕CDM2KL25-200A‫ޔ‬CY1L20H-450B-A73

㧔A-Y10,A-X11㧕

h.ᚻേࡠ࡯࠲࡝࡯ࡃ࡞ࡉ TSFR-4 㧔Manual㧕i.ࡃ࡞ࡉ㚟േ↪ࠪ࡯ࠤࡦࠬ࠰ࡈ࠻㧔Timer Pro㧕෸߮೙ᓮ↪ࡄ࠰ࠦࡦ
j.ࡃ࡞ࡉ㚟േ↪ I/O ࡏ࠶ࠢࠬ෸߮ࠛࠕ࡯಴ജࡏ࠶ࠢࠬ

㪉㪄㪉㪄㪉㪅㩷 㩷 䉦䊤䊛㘃㩷 ᧄⵝ⟎ߦ↪޿ߡ޿ࠆࠞ࡜ࡓ㘃ߩ৻ⷩࠍ Table 2-1 ߦ␜ߒ‫ߡ޿ߟߦ⚦⹦ߩߘޔ‬એਅߦ⸥ߔ‫ޕ‬
Table 2-1 Analytical columns used for determination of SF6.

㪮㪸㫋㪼㫉㩷㫍㪸㫇㫆㫉㩷㫉㪼㫄㫆㫅㪸㫃㩷㪚㫆㫃㫌㫄㫅㪑㪫㫉㪸㫇㫇㫀㫅㪾㩷㪚㫆㫃㫌㫄㫅㪑㪧㫉㪼㪄㪺㫌㫋㩷㪚㫆㫃㫌㫄㫅㪑㪞㪚㩷㫄㪸㫀㫅㩷㪺㫆㫃㫌㫄㫅㪑㪧㪸㪺㫂㫀㫅㪾㩷㪤㪸㫋㪼㫉㫀㪸㫃 㪤㪼㫊㪿㪣㪼㫅㪾㫋㪿㩿㫄㪀 㪛㫀㪸㫄㪼㫋㪼㫉䇭㩿㫄㫄㪀
䋭
㪇㪅㪈
㪎㪅㪍
㪤㪾㩿㪚㫃㪦㪋㪀㪉㪧㫆㫉㪸㫇㪸㫂㩷㪨㪏㪇㪆㪈㪇㪇
㪇㪅㪉
㪉㪅㪉
㪤㪪㪄㪌㪘
㪏㪇㪆㪈㪇㪇
㪇㪅㪊
㪉㪅㪉
㪤㪪㪄㪌㪘
㪏㪇㪆㪈㪇㪇
㪉㪅㪍
㪉㪅㪉
㩷
−7−

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a. ⣕᳇ࠟࠬੇ῎ࠞ࡜ࡓ (Mg(ClO4)2)
ᄖᓘ 3/8 ࠗࡦ࠴ߩࠬ࠹ࡦ࡟ࠬ(SUS-316)▤ 20cm ߦએਅߩᚻ㗅ߢలႯ೷ࠍ౉ࠇࠆ‫ޕ‬Ԙ ᧃ┵߆ࠄ 5cm ⒟ᐲߪలႯߒߥ޿ԙ ⍹⧷࠙࡯࡞(ⷫᜰߩ࠷ࡔ⒟ᐲߩ߽ߩࠍ 3 ߟలႯ)Ԛ ㆊႮ⚛㉄ࡑࠣࡀࠪ࠙ࡓࠍ 10cm ⒟ᐲలႯԛ ⍹⧷࠙࡯࡞(వߣห᭽)ߎࠇࠍ 2 ߟḰ஻ߒ‫ޔ‬ᶏ᳓⹜ᢱ⚂ 20 ࠨࡦࡊ࡞Ფ㧔1 ᷹ὐߏߣ㧕ߦࡃ࡞ࡉࠍಾࠅ឵߃ߡ↪޿ࠆ‫ޕ‬b. Ớ❗ࠞ࡜ࡓ(TRAP㧒HEAT)ᄖᓘ 1/8 ࠗࡦ࠴ߩࠬ࠹ࡦ࡟ࠬ▤ 30cm ߦએਅߩᚻ㗅ߢలႯ೷ࠍ౉ࠇࠆ‫ޕ‬Ԙ ᧃ┵߆ࠄ 5cm ⒟ᐲߪలႯߒߥ޿ԙ ⍹⧷࠙࡯࡞(ዊᜰߩ࠷ࡔ⒟ᐲߩ߽ߩࠍ 3 ࿁ߦಽߌߡలႯ)ԛ ޽ࠄ߆ߓ߼⚐⓸⚛ࠟࠬࠍㅢߓߥ߇ࠄ 120͠ߢ 2 ᤨ㑆ࠛ࡯ࠫࡦࠣߒߚ Porapak-Q(80/100mesh)ࠍ 20cm లႯԜ ⍹⧷࠙࡯࡞㧔వߣห᭽㧕c. ࡊ࡟ࠞ࠶࠻߅ࠃ߮࠳ࡒ࡯ࠞ࡜ࡓ
ᄖᓘ 1/8 ࠗࡦ࠴ߩࠬ࠹ࡦ࡟ࠬ▤ 40cm ߦએਅߩᚻ㗅ߢలႯࠍⴕ߁‫ޕ‬Ԙ ᧃ┵߆ࠄ 5cm ⒟ᐲߪలႯߒߥ޿ԙ ⍹⧷࠙࡯࡞(ዊᜰߩ࠷ࡔ⒟ᐲߩ߽ߩࠍ 3 ࿁ߦಽߌߡߟ߼ࠆ)Ԛ MS-5A (80/100mesh) 30cm
ԛ ⍹⧷࠙࡯࡞

d. ࡔࠗࡦࠞ࡜ࡓ
ᄖᓘ 1/8 ࠗࡦ࠴ߩࠬ࠹ࡦ࡟ࠬ▤ 300cm ߦએਅߩᚻ㗅ߢలႯߒߡ޿ߊ‫ޕ‬Ԙ ᧃ┵߆ࠄ 10cm ⒟ᐲߪᧂలႯԙ ⍹⧷࠙࡯࡞(ዊᜰߩ࠷ࡔ⒟ᐲߩ߽ߩࠍ 3 ࿁ߦಽߌߡߟ߼ࠆ)Ԛ MS-5A (80/100mesh) 260cm
ԛ ⍹⧷࠙࡯࡞

㪉㪄㪉㪄㪊㪅㩷 ቯኈ▤㩷 ᧄⵝ⟎ߦߪ‫ޔ‬ᄢ᳇߅ࠃ߮ᮡḰࠟࠬࠍ৻ቯ㊂ࠍߪ߆ࠅขࠆߚ߼ߩ‫ޔ‬ᄢዊฦ㧝ᧄߕߟߩቯኈ▤㧔LOOP㧕߇⸳ߌࠄࠇߡ޿ࠆ‫ޕ‬ᄢዊࠍ૶޿ಽߌࠆߎߣߢ‫ޔ‬ᮡḰࠟࠬߢᬌ㊂✢ࠍ૞ᚑߔࠆ㓙ߦ᷹ቯὐࠍࠃࠅ⚦߆ߊߣࠆߎߣ߇ߢ߈ࠆ‫ޕ‬ ቯኈ▤ߪ‫ޔ‬1/8 ࠗࡦ࠴ߩ SUS316 ࠬ࠹ࡦ࡟ࠬ▤ࠍࠦࠗ࡞⁁ߦᏎ޿ߚ߽ߩࠍᵹ〝ಾࠅ឵߃ࡃ࡞ࡉߦขࠅઃߌߡ૶
↪ߒߡ޿ࠆ‫ߩߘޕ‬ኈ㊂ߪ‫ޔ‬ਛߦ⫳⇐᳓ࠍ౉ࠇߡࡃ࡞ࡉߏߣ㊀㊂ࠍ᷹ቯߒ‫ޔ‬ਛߦ౉ߞߡ޿ࠆ⫳⇐᳓ߩ㊀㊂ࠍ‫ޔ‬᳓᷷‫ޔ‬᳇᷷߅ࠃ߮᳇࿶ࠍ↪޿ߡ⵬ᱜߒߡቯኈ▤ߩኈ㊂ࠍ 1/1000cm3 ߹ߢ᳿ቯߔࠆ‫ޕ‬ ᧄⵝ⟎ߦขࠅઃߌࠄࠇߡ޿ࠆቯኈ▤ߪ‫ޔ‬20͠‫ޔ‬1atm ߢࠟࠬቯኈ▤㧔ᄢ㧕 3.033cm3ࠟࠬቯኈ▤㧔ዊ㧕 1.483cm3ߢ޽ࠆ‫ޕ‬ ߥ߅‫ޔ‬ቯኈ▤ߦߟ޿ߡߪ‫ޔ‬ᶏᵗ᷹ⷰ╬⃻႐ߢߩ᷹ⷰߩ೨ᓟߦᬌቯࠍⴕ޿ߘߩ୯ࠍ⏕߆߼ߡ߅޿ߚᣇ߇ࠃ޿‫ޕ‬−8−

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2007㪉㪄㪉㪄㪋㪅㩷 㩷 䉧䉴䉪䊨䊙䊃䉫䊤䊐㩷 ⿥ᓸ㊂ߩ SF6 ߩಽᨆߦߪ‫ޔ‬㔚ሶ᝝₪ဳᬌ಴ེ(Electron Capture Detector, ECD)ઃ߈ߩࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡈ
㧔GC㧕
‫⾰ߪ޿ࠆ޽ޔ‬㊂ಽᨆ⸘ࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡈ(GC-MS)߇↪޿ࠄࠇߡ޿ࠆ߇‫ ߪߦ⟎ⵝᧄޔ‬ECD ઃ߈ߩࠟࠬࠢ
ࡠࡑ࠻ࠣ࡜ࡈ(ፉᵤ GC-8AECD)ࠍ↪޿ߡ޿ࠆ‫ޕ‬ECD ߩᬌ಴ේℂߪએਅߩߣ߅ࠅߢ޽ࠆ‫ޕ‬ǃ ✢ࠍ᡼಴ߔࠆ᡼኿ᕈ
‛⾰ߩ Ni-63 ࠍ૶↪ߔࠆᬌ಴ེߦ⓸⚛╬ߩࠠࡖ࡝ࠕࠟࠬࠍዉ౉ߔࠆߣ‫⚛⓸ޔ‬ಽሶߪࠗࠝࡦൻߐࠇࠆ‫ߦߎߎޕ‬Ⴎ⚛‫ࡦࠥࡠࡂߩߤߥ⚛࠶ࡈޔ‬ర⚛ࠍ฽߻᦭ᯏൻว‛߿᦭ᯏ㊄ዻൻว‛߇ࡔࠗࡦࠞ࡜ࡓ╬ߢᚑಽߏߣߦಽ㔌ߐࠇߡ౉ߞߡߊࠆߣࠗࠝࡦߪߎࠇࠄߩⷫ㔚ሶൻว‛ߦๆ෼ߐࠇ‫ޔ‬ಽሶߦๆ෼ߐࠇߚࠗࠝࡦߪ⾰㊂ࠍჇߔߎߣߦߥࠆ‫ޕ‬ᒙ޿㔚૏ࠍ߆ߌߡߎߩࠗࠝࡦ㔚ᵹࠍᬌ಴ߔࠆߎߣߢ‫ࡦࠝࠗޔ‬㔚ᵹߩᷫዋ߆ࠄⷫ㔚ሶൻว‛ߩ㊂ࠍᬌ಴ߔࠆ‫ޕ‬ ࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡈࠖ࡯ߪ‫ߩ࡯ࠖࡈ࡜ࠣ࠻ࡑࡠࠢޔ‬ਛߢ߽ઍ⴫⊛ߥᚻᴺߢ‫ޔ‬ᄢ߈ߥ㕙Ⓧࠍ᦭ߔࠆ࿕ቯ⋧(లႯ೷)ߣ‫ߦࠇߎޔ‬ធߒߡᵹࠇࠆ⒖േ⋧(ࠠࡖ࡝ࠕࠟࠬ)ߣߩ㑆ߦಽ㔌ߔߴ߈ᚑಽࠍ‫ޔ‬࿕ቯ⋧ߣߩੑ⋧㑆ಽ㔌(᳇⋧㧙 ࿕⋧ , ᳇⋧㧙 ᶧ⋧ , ᶧ⋧㧙 ᶧ⋧ , ᶧ⋧㧙࿕⋧╬), ๆ⣕⌕, ࠗࠝࡦ੤឵╬ߩ⋧੕૞↪ࠍ⚻ߡಽ㈩ߐߖࠆ‛ℂ⊛ᚻᴺߢ޽ࠆ‫ޕ‬ ࠢࡠࡑ࠻ࠣ࡜ࡓࠍ⸥㍳ߒ‫ࠢ࡯ࡇޔ‬㕙Ⓧࠍ⸘▚ߔࠆߚ߼ߦ‫ߪߦ⟎ⵝᧄޔ‬ፉᵤ␠⵾ࠗࡦ࠹ࠣ࡟࡯࠲ CR-7A ࠍ↪޿ߚ‫ޕ‬㪉㪄㪊㪅㩷 㩷 ⹜ᢱណข㩷㪉㪄㪊㪄㪈㪅㩷 㩷 ⿥ᓸ㊂ᶏ᳓ṁሽ᳇૕ಽᨆ↪⹜ᢱ↉䉕↪䈇䈢ᶏ᳓⹜ᢱ䈱ណข㩷 SF6 ߪߘߩᄢ᳇ਛỚᐲ߅ࠃ߮ᶏ᳓߳ߩṁ⸃ᐲ߇ߣ߽ߦૐ޿ߩߢ‫ޔ‬ᶏ᳓ਛߦ߅ߌࠆỚᐲߪᭂ߼ߡૐ޿㧔ᦨᄢߢ߽ᢙ fmol/kg ⒟ᐲ㧕‫⎇ᧄޕ‬ⓥߩ⋡⊛ߣߔࠆ㜞♖ᐲߢૐᬌ಴㒢⇇ࠍ㆐ᚑߔࠆߚ߼ߦߪ‫ޔ‬a. ࡉ࡜ࡦࠢ୯ࠍᦨዊ㒢ߦߔࠆb. ណข߆ࠄಽᨆ߹ߢߩ㑆ߩ⹜ᢱߩᄌ⾰ࠍ㒐ߋߎߣ߇ᔅⷐߣߥࠆ‫ޕ‬ห᭽ߦᶏ᳓ਛỚᐲ߇ૐ޿ CFCs ߩಽᨆ↪⹜ᢱߩណข㧔ࠨࡉࠨࡦࡊ࡝ࡦࠣ㧕ߦߪ‫⵾ࠬ࡜ࠟޔ‬ᵈ኿╴߇↪޿ࠄࠇߡ߈ߚ‫ߩߎޕ‬೑ὐߪ‫ޔ‬a. 㜞Ớᐲߩ CFCs ࠍ฽߻ᄢ᳇ߣធ⸅ߒߡᳪᨴߔࠆߎߣߥߊᶏ᳓⹜ᢱࠍណ᳓ེ߆ࠄណข࡮଻ሽߢ߈‫ޔ‬ಽᨆⵝ⟎ߦዉ౉ߢ߈ࠆ‫ޔ‬b.  ૶ ↪ ណ ข ᓟ ‫ ޔ‬ಽ ᨆ ߦ ଏ ߐ ࠇ ࠆ ߹ ߢ ߩ 㑆 ‫ ޔ‬ᵈ ኿ ╴ ߩ ࡇ ࠬ ࠻ ࡦ ࠍ ベ ࠧ ࡓ ╬ ߢ ട ࿶ ߔ ࠆ ߎ ߣߢ⹜ᢱ߆ࠄߩࠟࠬ㘃ߩ⣕ࠟࠬ߿⹜ᢱߩᾲ⤘ᒛ࡮෼❗ߦ઻߁⹜ᢱ↉ߩ⎕៊ࠍ㒐ߋߎߣ߇ߢ߈ࠆ‫ޔ‬ߎߣߦ޽ࠆ‫ޕ‬SF6 ಽᨆߦ㓙ߒߡ߽ࠟ࡜ࠬᵈ኿╴ࠍ↪޿ࠆߎߣ߇ߢ
߈ࠇ߫⦟޿߇‫ޔ‬ᶏ᳓ਛߩ SF6 ߩỚᐲߪ CFCs ࠃࠅ߅ࠃߘ㧟ᩴ߽ૐ޿ߩߢ‫ࠅࠃޔ‬ᄙߊߩ⹜ᢱࠍಽᨆߦଏߔࠆߎߣ߇ߘߩಽᨆ♖ᐲࠍะ਄ߐߖࠆ਄ߢᔅⷐਇนᰳߣߥߞߡߊࠆ‫ޕ‬ᄢဳߩࠟ࡜ࠬᵈ኿╴ߪᏒ⽼ຠߣߒߡሽ࿷ߔࠆ߇‫߽ߡߣޔ‬㜞ଔߥ਄‫ޔ‬ᄢဳߢ޽ࠆߎߣߢߘߩ
ࡂࡦ࠼࡝ࡦࠣߪ㔍ߒߊߥࠆ‫⎇ᧄߢߎߘޕ‬ⓥߢߪ‫ࠬ࡜ࠟޔ‬ᵈ኿╴ߩ೑ὐࠍߢ߈ࠆ㒢ࠅᵴ↪ߢ߈ࠆᣂߚߥಽᨆ↪⹜ᢱ↉ࠍ૞ᚑߒߚ‫ޕ‬
Figure 2-2 ߦߘߩ᭎⇛࿑ࠍ␜ߔ‫⹜ޕ‬ᢱ↉ߪ৻⥸⊛ߥ 1000cm3 ߩ
⹜ᢱ↉ߦኻߒߡᡷ⦟ࠍᣉߒߚ߽ߩߢ‫ޔ‬

Figure 2-2 Schematic diagram of sample bottle formeasurement of dissolved trace gases.
−9−.

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2007a. ↉ߩ਄ਅ㧞▎ᚲߦ࡞ࠕࡠ࠶ࠢဳߩญࠍขࠅઃߌ‫ߦࠇߙࠇߘޔ‬ක≮↪ߦ↪޿ࠄࠇߡ޿ࠆਃᣇᵴᩖ(଀߃߫࠹࡞ࡕ␠⵾࠹࡞ࡈࡘ࡯࡚ࠫࡦਃᣇᵴᩖ L ဳ)ࠍ૶↪
b. ↉ߩ߰ߚߩઍࠊࠅߦࡇࠬ࠻ࡦࠍዉ౉
ߒߚ߽ߩߢ޽ࠆ‫ޕ‬ ᶏ㕙ਅߩᶏ᳓⹜ᢱߩណขߦߪ CFCs ಽᨆߩ⹜ᢱណขߣห᭽ߦ‫ޔ‬ᄢ ဳ (10L એ ਄ )ߢ ౝ ㇱ ო ߦ ࠹ ࡈ ࡠ ࡦ ࠦ ࡯ ࠹ࠖ ࡦ ࠣ ࠍ ߶ ߤ ߎ ߒ ߡ ޿ ߥ ޿ ‫ ޔ ߚ ߹ ޔ‬਄ ਅ ߩ ਔ߰ߚߪࠧࡓ▤ߢߪߥߊࠬ࠹ࡦ࡟ࠬ⵾ߩࡃࡀࠍ↪޿ߚ࠾ࠬࠠࡦណ
᳓ེࠍ↪޿ࠆߎߣ߇ᦸ߹ߒ޿‫ޕ‬ ࠾ࠬࠠࡦណขེ߆ࠄߩᧄ⎇ⓥߢ૞ᚑߒ૶↪ߒߚಽᨆ↪⹜ᢱ↉߳ߩಽขᚻ㗅ࠍએਅߦ␜ߔ‫ޕ‬Ԙ ⹜ᢱ↉ߩਅ஥ߩ⛎᳓ឃ᳓ญߣ࠾ࠬࠠࡦណ᳓ེߩឃ᳓ญߪ‫ޔ‬ឃ᳇ߒߥ߇ࠄ 60͠ߢ㧝᥅὾߈಴ߒࠍⴕߞߚ࠲ࠗ
ࠧࡦ࠴ࡘ࡯ࡉ㧔ౝᓘ 7mm㧕ߢធ⛯ߔࠆ‫ޕ‬ԙ ⹜ᢱ↉਄ਅߦขࠅઃߌߚਃᣇᵴᩖࠍ㐿߈‫ࡦࠠࠬ࠾ޔ‬ណ᳓ེࠃࠅ⹜ᢱᶏ᳓ࠍ↉ౝߦዉ౉ߔࠆ‫ߩߘޕ‬㓙‫⹜ޔ‬ᢱ↉ߩࡇࠬ࠻ࡦߪ᛼ߒㄟ߹ࠇߚ⁁ᘒߦߒߡ߅ߊ‫ޕ‬Ԛ ᶏ᳓⹜ᢱ߇⹜ᢱ↉ߩ⢋ㄝࠅ߹ߢ᧪ߚࠄ‫⹜ޔ‬ᢱ↉ࠍ௑ߌߡ‫↉ޔ‬਄ㇱ‫ࡦ࠻ࠬࡇߦ․ޔ‬๟ㄝߦᱷߞߚ᳇ᵃࠍ⹜ᢱ↉਄ߩឃ᳓ญ߆ࠄឃ಴ߔࠆ‫ޕ‬ԛ ↉ౝ߇ᶏ᳓ߢḩߚߐࠇߚࠄ‫ޔ‬ឃ᳓ญߩਃᣇᵴᩖࠍ㐽ߓߡ‫ࡦ࠻ࠬࡇޔ‬ਅㇱ߇⹜ᢱ↉ߩ⢋߹ߢ਄߇ߞߡߊࠆ߹ߢ
ᓙߟ‫ޕ‬
Ԝ ߘߩᓟ‫⹜ޔ‬ᢱ↉਄஥ਃᣇᵴᩖࠍ㐿߈‫ࠍࡦ࠻ࠬࡇޔ‬᛼ߒㄟࠎߢട࿶ߒ‫ޔ‬ᶏ᳓ࠍឃ಴ߐߖࠆ‫ޕ‬ԝ ࡇࠬ࠻ࡦࠍ᛼ߒಾߞߚࠄ‫ޔ‬ౣ߮਄஥ਃᣇᵴ✢ࠍ㐽ߓߡᶏ᳓ࠍḩߚߒߡ޿߈‫ࡦ࠻ࠬࡇޔ‬ਅㇱ߇⹜ᢱ↉ߩ⢋ߦߥࠆߩࠍᓙߟ‫ޕ‬Ԟ ԛԜԝԛߩ㗅ߦᠲ૞ࠍ➅ࠅ㄰ߒߚᓟ‫ࠍࡦ࠻ࠬࡇޔ‬࿕ቯߒ‫ޔ‬਄஥ਃᣇᵴᩖࠍ㐿޿ߡ‫ޔ‬ᶏ᳓⹜ᢱࠍࠝ࡯ࡃ࡯ࡈࡠ
࡯ߐߖࠆ‫ޕ‬ԟ߅ࠃߘ㧝L ߩᶏ᳓ࠍࠝ࡯ࡃ࡯ࡈࡠ࡯ߐߖߚᓟ‫ޔ‬਄஥ਃᣇᵴᩖ‫ޔ‬ਅ஥ਃᣇᵴᩖߩ㗅ߦᩖࠍ㐽ߓߡ‫ࡦࠠࠬ࠾ޔ‬ណ᳓ེߣ❬޿ߛ࠴ࡘ࡯ࡉࠍߪߕߔ‫ޕ‬Ԡࡇࠬ࠻ࡦ਄ㇱߣ⹜ᢱ↉ਅㇱߣߩ㑆ߦベࠧࡓࠍ߆ߌߡ⹜ᢱಽᨆ߹ߢߩ㑆ߩ⣕ࠟࠬࠍ㒐ߋߚ߼ߦട࿶ߒ‫ࡦ࠻ࠬࡇޔ‬ߣࠪ࡝ࡦ࠳࡯ߩ㑆ߢߩ⹜ᢱᶏ᳓ߣߩᄢ᳇ߣߩធ⸅ࠍㆱߌࠆߚ߼ߦ⴫㕙ᶏ᳓ߢḩߚߒߚኈེౝߦ⹜ᢱ↉ࠍ଻ሽߔࠆ‫ޕ‬㪉㪄㪊㪄㪉㪅㩷 㩷 ᄢ᳇⹜ᢱ䈱ណข㩷 ᄢ᳇⹜ᢱࠍណขߔࠆߦߪ‫ޔ‬

a. ⋥ធࡐࡦࡊߢᄢ᳇ࠍಽ㔌Ớ❗ⵝ⟎ߦዉ౉ߔࠆᣇᴺ

b. ࡈ࡜ࠬࠦ╬ߦട࿶⁁ᘒߢណขߔࠆᣇᴺ╬߇޽ࠆ߇‫ߪߢߎߎޔ‬ᄢដ߆ࠅߥⵝ⟎߿㔚Ḯࠍᔅⷐߣߒߥ޿ࠟ࡜ࠬᵈ኿╴ߦࠃࠆណขᴺߦㅀߴࠆ‫ ߪౕེޕ‬100cm3
ࠟ࡜ࠬ⵾ᵈ኿╴ߣਃᣇᵴᩖߢ‫ޔ‬㘑ะ߈ࠍ⠨ᘦߒߡੱᎿ‛╬ߦࠃࠆᳪᨴߩᓇ㗀ࠍฃߌߥ޿ߣߎࠈ㧔ߚߣ߃߫⥶⿛ਛߩ⦁㚂ߥߤ㧕ߢᢙᐲࡇࠬ࠻ࡦࠍ᛼ߒᒁ߈ߔࠇ߫ࠃ޿‫ޕ‬ ᶏ᳓⹜ᢱ߅ࠃ߮ᄢ᳇⹜ᢱߣ߽ߦ‫ޔ‬ណขᓟߪߢ߈ࠆߛߌᣧߊಽᨆߦଏߔࠆߎߣ߇ᔅⷐߢ޽ࠆ‫ޕ‬− 10 −

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2007㪉㪄㪋㪅㩷 㩷 ಽᨆᚻ㗅㩷㪉㪄㪋㪄㪈㪅㩷 㩷 ಽᨆ᧦ઙ䈱⸳ቯ㩷
a. ಄ᶎ߅ࠃ߮ḡᶎ(಄ᶎ) ࠛ࠲ࡁ࡯࡞ࠍ౉ࠇߚࠫࡘࠕ࡯↉ߦ಄ළེߩ಄ළㇱࠍ౉ࠇ‫߇࡞࡯ࡁ࠲ࠛޔ‬-70͠એਅߣߥࠆࠃ߁⺞ᢛߔࠆ‫ޕ‬(ḡᶎ) ᳓ࠍ౉ࠇߚࠫࡘࠕ࡯↉ߦࠬ࡜ࠗ࠳࠶ࠢ㔚࿶⺞ᢛེࠍ੺ߒߚᛩㄟߺࡅ࡯࠲࡯ࠍ౉ࠇ‫ޔ‬᳓߇ 80͠ߣߥࠆࠃ߁
⺞ᢛߔࠆ‫ޕ‬b. ࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡈߩ⺞ᢛᧄࠪࠬ࠹ࡓߩ႐ว‫ᧄࡈ࡜ࠣ࠻ࡑࡠࠢࠬࠟޔ‬૕ߢ⋥ធࠠࡖ࡝ࠕࠟࠬᵹ㊂ߩ⺞ᢛࠍⴕߥߞߡ޿ࠆࠊߌߢߪߥ޿ߩߢ‫ޔ‬ࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡈߦߟ޿ߡᚒ‫⺞߁ߥⴕ߇ޘ‬ᢛߪ‫ࡦࡉ࡯ࠝޔ‬ㇱ߅ࠃ߮࠺ࠖ࠹ࠢ࠲ㇱߩ᷷ᐲߩ⺞ᢛߢ޽ࠆ‫ޕ‬ ߹ߕ‫ࠍࡓ࡜ࠞࡦࠗࡔ߇ࠬࠟࠕ࡝ࡖࠠޔ‬ㅢߒߡࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡈߩ࠺ࠖ࠹ࠢ࠲ߦଏ⛎ߐࠇߡ޿ࠆߎߣࠍࠟࠬࠢࡠࡑ
࠻ࠣ࡜ࡈߩࠠࡖ࡝ࠕࡌࡦ࠻߆ࠄߩࡈࡠ࡯ߢ⏕⹺ߒߚߩߜ‫ᧄࡈ࡜ࠣ࠻ࡑࡠࠢࠬࠟޔ‬૕ߩ㔚Ḯࠍ౉ࠇࠆ‫ࡦࡉ࡯ࠝޕ‬ㇱߩ࠼ࠕ߇㐽ߓߡ޿ࠆߎߣࠍ⏕⹺ߒߡ‫ࡦࡉ࡯ࠝޔ‬ㇱߩ᷷ᐲࠍ 65͠ߦ⸳ቯߔࠆ‫ޕ‬ᢙಽࠝ࡯ࡉࡦㇱߩ᷷ᐲ߇਄᣹ߔࠆ
ߩࠍᓙߞߡ߆ࠄ‫࠲ࠢ࠹ࠖ࠺ޔ‬ㇱߩ᷷ᐲࠍ 330͠ߦ⸳ቯߔࠆ‫ޕ‬c. ࠠࡖ࡝ࠕࠟࠬᵹ㊂ߩ⺞ᢛࠠࡖ࡝ࠕࠟࠬᵹ㊂ߪ‫ޔ‬ಽᨆ♖ᐲߦ߹ߢᓇ㗀ࠍ߅ࠃ߷ߒᓧࠆ߽ߩߥߩߢ‫ߦߊߣޔ‬ᵈᗧߒߡ⺞ᢛߔߴ߈ߢ޽ࠆ‫ࠪᧄޕ‬ࠬ࠹ࡓߩ႐ว‫ޔ‬ᵹ㊂ߩ⺞ᢛߪࡑࠬࡈࡠ࡯ࠦࡦ࠻ࡠ࡯࡜ ( MFC) ߣ࿶ജ⺞ᢛེ( PR-2 , 3, 4, 5 ) ߢⴕߥ߁ࠃ߁ߦߥ
ߞߡ޿ࠆ‫ޕ‬(c-1) ࠠࡖ࡝ࠕࠟࠬ⺞࿶ེ ࠠࡖ࡝ࠕࠟࠬߩଏ⛎࿶ജߪ 0.6㨪0.7M Pa (ੑᰴ࿶)ߣߔࠆ‫ߩࡌࡦࡏޕ‬ᱷ࿶߇ 2M Pa ⒟ᐲ(৻ᰴ࿶)ߦߥߞߚࠄ‫ޔ‬ㅦ߿߆ߦࡏࡦࡌࠍ੤឵ߔࠆ‫ޕ‬(c-2) PR-1 ᵹ〝ߩ⺞ᢛ PR-1 ᵹ〝ߪ⹜ᢱ᳓߆ࠄ⋡⊛ߣߔࠆ SF6 ࠍ⣕᳇ߔࠆߚ߼ߦ↪޿ࠆ‫ޕ‬PR-1 ߩᵹ〝ㅜਛߦ⸳ߌࠄࠇߚ MFC ߦࠃࠅ⥄േ⊛ߦᵹ㊂߇⺞ᢛߐࠇ‫ߦ․ޔ‬㊀ⷐߣߥࠆ⣕᳇ᵹ㊂ࠍᏱߦ৻ቯߦ଻ߟࠃ߁⸳⸘ߐࠇߡ޿ࠆ‫ޕ‬PR-1 ߪߘߩࠥ࡯ࠫ
ߢ 250kPa ⒟ᐲߦട࿶ߒ‫ޔ‬MFC ߦࠃࠅ 200cm3/min ߦ⺞ᢛߔࠆ‫ޕ‬(c-3) PR-2 ߩ⺞ᢛ ߎߩᵹ〝ߪ⹜ᢱ↉ਛߩᶏ᳓ࠍ⣕᳇╴ߦዉߊߚ߼ߦ↪޿ࠆ‫ޕ‬PR-2 ߩ࿶ജࠥ࡯ࠫߢ 200kPa ߦߥࠆࠃ߁⸳ቯߔࠆ‫ޕ‬(c-4) PR-3 ߩ⺞ᢛ ࿑ਛ A6P7 ߣ A4P8 ߇㤥‫ޔ‬A6P9 ߇⊕ߩᵹ〝ߢࠟࠬ߇ᵹࠇࠆࠃ߁ࡃ࡞ࡉࠍಾࠅᦧ߃ߚ⁁ᘒߢ‫ࡊ࠶࡜࠻ߦࠄߐޔ‬ࠞ࡜ࡓࠍḡᶎߦߟߌߚ⁁ᘒߢࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡓ߆ࠄߩឃ᳇ᵹ㊂߇ 40cm3/min ߣߥࠆࠃ߁ PR-3 ࠍ⺞ᢛߔࠆ‫ޕ‬(c-5) PR-4 ߩ⺞ᢛ A6P7‫ޔ‬A4P8 ߅ࠃ߮ A6P9 ߇޿ߕࠇ߽㤥㧔⥄േࡃ࡞ࡉࠍ৻ಾᠲ૞ߒߥ޿⁁ᘒ㧕ߩᵹ〝ߢ‫࡜ࠣ࠻ࡑࡠࠢࠬࠟޔ‬ࡓ߆ࠄߩឃ᳇ᵹ㊂߇ 40cm3/min ߣߥࠆࠃ߁ PR-4 ࠍ⺞ᢛߔࠆ‫ޕ‬ PR-3 ߅ࠃ߮ PR-4 ߩ⺞ᢛ߇ਇචಽߛߣ⹜ᢱࠟࠬ߇࠺ࠖ࠹ࠢ࠲ߦ౉ߞߡ޿ࠆᦨਛߦࠟࠬᵹ㊂߇ᄌࠊߞߡߒ߹߁
ߎߣߣߥࠅ‫⺞ߩߎߦ․ޔߢߩࠆߥߦߣߎߔੂࠍࡦࠗ࡜ࠬ࡯ࡌߩࡓ࡜ࠣ࠻ࡑࡠࠢޔ‬ᢛߪᵈᗧᷓߊⴕߥ߁ᔅⷐ߇޽ࠆ‫ޕ‬(c-6) PR-5 ߩ⺞ᢛ PR-5 ߩᵹ〝ߪ‫ޔ‬ᄢ᳇ਛߦሽ࿷ߔࠆ SF6 ߇᜛ᢔߦࠃߞߡࡃ࡞ࡉߩࡠ࡯࠲࡯ࠍㅢߓ‫ࠬࠟޔ‬ᵹ〝߿ࠨࡦࡊ࡞ਛߦᷙ౉ߔࠆߎ
ߣࠍ㒐ߋߚ߼ߩᄖ᳇ㆤᢿ↪ࡄ࡯ࠫᵹ〝߳ߣᵹࠇࠆ‫ޕ‬PR-5 ߩ࿶ജߪ‫ޔ‬10kPa ⒟ᐲߣߒ‫ޔ‬ᵹ〝⚳┵ߩ࠾࡯࠼࡞ࡃ࡞ࡉߢ
− 11 −

気象研究所技術報告

第 51 号

2007

10mL/min ⒟ᐲߦ⺞ᢛߔࠆ‫ޕ‬(c-7) ᮡḰࠟࠬߩଏ⛎
 ᮡḰࠟࠬߪੑᰴ࿶ 0.3M Pa ⒟ᐲߢଏ⛎ߔࠆ‫ޕ‬ ࠠࡖ࡝ࠕࠟࠬࠍή㚝ߦᶖ⾌ߔࠆߎߣࠍ㒐ߋߚ߼‫ޔ‬ಽᨆࠍⴕߥߞߡ޿ߥ޿ߣ߈ߪ NV-1, NV-2 ߅ࠃ߮ NV-3 ߢ VENT1,
VENT5 ߅ࠃ߮ VENT6 ߆ࠄߩᵹ㊂ࠍ 10cm3/min ⒟ᐲߦᛥ߃ߡ߅ߊߣࠃ޿‫ߦ࠲ࠢ࠹ࠖ࠺ޔߒߛߚޕ‬ଏ⛎ߔࠆࠟࠬᵹ
㊂ߪಽᨆࠍⴕߞߡ޿ߥ޿ߣ߈ߢ޽ߞߡ߽ 40 cm3/min ߦ଻ߞߡ߅޿ߚᣇ߇ࠃ޿‫ޕ‬d. ࠲ࠗࡓࠪ࡯ࠤࡦࠬ
 Table 2-2 ߦ‫ޔ‬ᶏ᳓⹜ᢱಽᨆߦߟ޿ߡߩ⥄േࡃ࡞ࡉߩ೙ᓮߣࠗࡦ࠹ࠣ࡟࡯࠲ࠍࠬ࠲࡯࠻ߐߖࠆࠬࠤࠫࡘ࡯࡞㧔࠲ࠗࡓࠪ࡯ࠤࡦࠬ㧕ࠍ␜ߔ‫ޕ‬
Table 2-2 Time program for SF6 determination for seawater sample.
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㪚㫃㫆㫊㪼 㪚㫃㫆㫊㪼− 12 −

気象研究所技術報告

第 51 号

2007㪉㪄㪋㪄㪉㪅㩷 㩷 ᶏ᳓⹜ᢱ䈱ಽᨆ㩷 ᧄⵝ⟎ߢߪ‫⹜ޔ‬ᢱಽᨆߪ㜞ᐲߦ⥄േൻߐࠇߡ޿ࠆߩߢ‫⹜ޔߪߢߎߎޔ‬ᢱਛߩ SF6 ߇ⵝ⟎ߩਛߢ‫ߦ߁ࠃߩߤޔ‬ಽ㔌‫ޔ‬Ớ❗ߐࠇᦨ⚳⊛ߦᬌ಴ེߢᬌ಴ߐࠇߡ޿ߊߩ߆ߩᵹࠇࠍ⏕⹺ߒߡ޿ߊ‫ޕ‬ ߥ߅‫ࠬࡦࠤ࡯ࠪޔ‬૞േ೨ߩᵹ〝ߪ‫ޔ‬Figure 2-1 ਛߢ‫࡯ࠕࠛޔ‬㚟േࡃ࡞ࡉߦߟ޿ߡߪ㤥஥ᵹ〝‫ ߚ߹ޔ‬AST‫ޔ‬SST㔚⏛ᑯߪ‫ޟ‬NO‫ޟ߫ࠇ޿ߡࠇߐ⸥ߣޠ‬㐿᡼‫ޔޠ‬‫ޟ‬NC‫ޟ߫ࠇ޿ߡࠇߐ⸥ߣޠ‬㐽㎮‫⁁ߩޠ‬ᘒߦ޽ࠆ‫ޕ‬Ԙ ᶏ᳓⹜ᢱ↉ߩ਄ߣਅߦขࠅઃߌࠄࠇߚ࡞ࠕࡠ࠶ࠢဳਃᣇᵴᩖࠍߘࠇߙࠇ PR-2 ᵹ〝ߩ਄ᵹ஥ߣਅᵹ஥ߦធ⛯ߒ‫ޔ‬ਃᣇᵴᩖࠍᵹ〝஥ߦ㐿᡼ߔࠆ‫ޕ‬ԙ ḡᶎ஥ߦ޽ߞߚ࠻࡜࠶ࡊࠞ࡜ࡓ߇಄ᶎ஥ߦ⒖ߐࠇ‫ޔ‬⣕᳇ߐࠇߚ SF6 ߇࠻࡜࠶ࡊࠞ࡜ࡓ߳ߣዉ߆ࠇỚ❗ߐࠇࠆḰ஻߇ᢛ߃ࠄࠇࠆ‫ޕ‬Ԛ ߟߠ޿ߡ SST4 㔚⏛ᑯࠍ㐿᡼‫ޔ‬AST5‫ޔ‬AST2 ࠍ㐽㎮ߒߚߩߜ‫ޔ‬AST1 ࠍ㐿᡼ߒߡ⹜ᢱ↉ਛߩᶏ᳓⹜ᢱࠍ PR-2
߆ࠄߩ㜞⚐ᐲ N2 ࠟࠬߣࡇࠬ࠻ࡦߩ࿶ജߢ⣕᳇╴߳ߣዉߊ‫ޕ‬⣕᳇╴ߩ਄ㇱߦߪ᳓㕙࠮ࡦࠨ࡯߇⸳⟎ߐࠇߡ߅ࠅ‫ޔ‬ᶏ᳓⹜ᢱ߇৻ቯ㊂ዉ౉ߐࠇࠆߣ AST1 ᑯ߇㐽㎮ߐࠇ‫ޔ‬ᶏ᳓ዉ౉߇ᱛ߹ࠆ‫ޕ‬ԛ ⣕᳇╴ߩ౒ᵞ޿ߩߚ߼‫ޔ‬SST3 ߣ AST2 ᑯࠍ޿ߞߚࠎ㐿᡼ߒߡ⹜ᢱࠍᑄ᫈ߒ‫ޔ‬ౣᐲ⣕᳇╴ߦ⹜ᢱࠍዉ౉‫ޔ‬
ቯ㊂ߔࠆ‫ޕ‬Ԝ ዉ౉ᓟ‫ޔ‬SST4 ࠍ㐽㎮‫ޔ‬AST5 ࠍ㐿᡼‫ޔ‬A6P7 ࠍ⊕ᵹ〝ߦߒߡ‫ޔ‬AST2 ࠍ㐿᡼ߔࠇ߫ PR-1 ߆ࠄߩ㜞⚐ᐲ N2
ࠟࠬߢᶏ᳓⹜ᢱߩ⣕᳇ࠍ㐿ᆎߔࠆ‫ޕ‬ԝ 㧢ಽ㑆ߩ⣕᳇ߩᓟ‫ޔ‬A4P8 ࡃ࡞ࡉࠍ⊕ᵹ〝ߦಾ឵‫ߩࡓ࡜ࠞࡊ࠶࡜࠻ޔ‬㐽㎮♽ࠍ⏕଻ߒ‫ߪࡓ࡜ࠞࡊ࠶࡜࠻ޔ‬಄ᶎ߆ࠄḡᶎߦ⒖ߒߡ‫ޔ‬หᤨߦ⣕᳇╴ౝߩ⣕᳇ᷣߺߩᶏ᳓⹜ᢱࠍ SST3 ߆ࠄᑄ᫈ߔࠆ‫ޕ‬Ԟ A6P9 ࠍ⊕ᵹ〝‫ޔ‬A6P7 ࠍ㤥ᵹ〝ߦಾ឵‫ޔࡈ࡜ࠣ࠻ࡑࡠࠢࠬࠟࠄ߆ࡓ࡜ࠞࡊ࠶࡜࠻ޔ‬ᬌ಴ེ߳ߣ SF6 ߩᵹ〝ߩḰ஻ࠍᢛ߃ߚᓟ‫ ࠍ࠲࡯࡟ࠣ࠹ࡦࠗޔ‬Start ߐߖߡ‫ޔ‬A4P8 ࠍ㤥ᵹ〝ߣߒ‫ޔ‬SF6 ࠍᬌ಴ེ߳ߣዉߊ‫ޕ‬
ԟ SF6 ߇ߔߴߡࡊ࡟ࠞ࡜ࡓࠍㅢㆊߒߚᤨὐߢ A6P9 ࠍ㤥ᵹ〝ߦಾ឵‫଻ޔ‬ᜬᤨ㑆ߩ㐳޿㕖⋡⊛ᚑಽࠍ NV-2 ߆ࠄឃ᳇ߒ‫৻ޔ‬ㅪߩಽᨆᠲ૞ߪ⚳ੌߔࠆ‫ޕ‬
 1 ⹜ᢱ޽ߚࠅߩಽᨆߦⷐߔࠆᤨ㑆ߪ‫ ⚂ޔ‬12 ಽ⒟ᐲߢ޽ࠆ‫ޕ‬㪉㪄㪋㪄㪊㪅㩷 㩷 ᄢ᳇䈍䉋䈶ᮡḰ䉧䉴⹜ᢱ䈱ಽᨆ㩷 ᄢ᳇⹜ᢱ㧔Air㧕‫ޔ‬ᮡḰࠟࠬ⹜ᢱ㧔Std㧕޽ࠆ޿ߪࡉ࡜ࡦࠢࠟࠬ㧔Blank㧕ߪ‫ޔ‬A4R14 ߣ㧠ᣇᚻേࡃ࡞ࡉ
㧔Manual㧕߆ࠄዉ౉ߐࠇࠆ‫ޕ‬ᮡḰࠟࠬ෸߮㜞⚐ᐲ N2 ࠟࠬࠍߐࠄߦᵺൻߒߚࡉ࡜ࡦࠢࠟࠬߪട࿶ኽ౉ߐࠇ
ߚࡏࡦࡌ߆ࠄଏ⛎ߐࠇࠆߩߢ‫ߩࠇߙࠇߘޔ‬ᵹ〝ࠍㆬᛯߒ‫ޔ‬AST13 ᑯࠍ㐿᡼ߔࠇ߫‫ޔ‬A8P6 ࡃ࡞ࡉߦขࠅઃ
ߌߚࠟࠬቯ㊂▤㧔LOOP㧕߳ߣዉ߆ࠇࠆ‫ޕ‬100mL ࠟ࡜ࠬᵈ኿╴ߢᓧࠄࠇߚᄢ᳇⹜ᢱߪࡇࠬ࠻ࡦࠍ᛼ߒߡቯ
㊂▤߳ዉ౉ߐࠇࠆ‫߽ࠬࠟߩࠇߕ޿ޕ‬ㅜਛߩ㒰Ḩ▤ Mg(ClO4)2 ࠍㅢߞߡ㒰Ḩߐࠇࠆ‫ޕ‬A8P6 ߦߪ‫ޔ‬ᄢዊ㧞⒳㘃ߩቯ㊂▤߇ขࠅઃߌࠄࠇߡ߅ࠅ‫ޔ‬ㆡᒰߥ߽ߩࠍㆬᛯߒߡ૶↪ߢ߈ࠆ‫ޕ‬
Ԙ A4R14 ࡃ࡞ࡉ෸߮ 4 ᣇᚻേࡃ࡞ࡉߢ૶↪ߔࠆࠟࠬ⹜ᢱࠍㆬᛯߒߚᓟ‫ޕࠆߖߐ࠻࡯࠲ࠬࠍࠬࡦࠤ࡯ࠪޔ‬ԙ AST13 ᑯ߇ 10 ⑽㑆㐿᡼ߒ‫⹜ࠬࠟޔ‬ᢱ߇ࠟࠬቯ㊂▤ࠍḩߚߔ‫ޕ‬AST13 ࠍ㐽㎮ߒߡ߽‫ޔ‬ਅᵹ஥߇ᄢ᳇ߦ
㐿᡼ߐࠇߡ޿ࠆߩߢ‫ޔ‬ቯ㊂▤ౝߩࠟࠬ⹜ᢱߪ৻ቯᤨ㑆㧔30 ⑽㧕ᓟ‫ޔ‬ᄢ᳇࿶߇㆐ᚑߐࠇࠆ‫ޕ‬Ԛ ᄢ᳇࿶߇⏕଻ߐࠇࠆ߹ߢߩ㑆‫ࠍࡓ࡜ࠞࡊ࠶࡜࠻ޔ‬ḡᶎ߆ࠄ಄ᶎߦ⒖ߒ‫ ߚ߹ޔ‬A6P7 ࡃ࡞ࡉࠍ⊕ᵹ〝ߦಾࠅ឵߃ߡ‫ޔ‬SF6 ࠍ࠻࡜࠶ࡊࠞ࡜ࡓ߳ߣዉߊḰ஻ࠍᢛ߃ࠆ‫ޕ‬
ԛ A8P6 ࡃ࡞ࡉࠍಾࠅ឵߃ࠆߣ‫ޔ‬ቯ㊂▤ౝߩࠟࠬ⹜ᢱ߇࠻࡜࠶ࡊࠞ࡜ࡓ߳ߣዉ߆ࠇ SF6 ߇Ớ❗ߐࠇࠆ‫ߎޕ‬ߩߣ߈ߩᄢ᳇࿶ߣ᳇᷷ࠍ‫ޔ‬᳇࿶ߦߟ޿ߡߪ±0.2hPa એਅ‫ޔ‬᳇᷷ߦߟ޿ߡߪ±0.05͠એਅߩ♖ᐲߢ⺒ߺߣࠅ‫ޔ‬ቯ㊂− 13 −

気象研究所技術報告

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2007▤ౝߩࠟࠬ⾰㊂ࠍ⸘▚ߦࠃࠅ᳞߼ࠆ‫ޕ‬ એਅ‫ޔ‬ᶏ᳓⹜ᢱߣห᭽ߦ‫ߢࡓ࡜ࠞࡊ࠶࡜࠻ޔ‬Ớ❗ߐࠇߚ SF6 ߥߤߪ‫ ࡓ࡜ࠞ࡟ࡊޔ‬, ࡔࠗࡦࠞ࡜ࡓࠍㅢࠅ‫ޔ‬ECD࠺ࠖ࠹ࠢ࠲ߦ౉ࠆߎߣߣߥࠆ‫ޕ‬㪉㪄㪋 㪄㪋㪅㩷 ᄢ ᳇ 䈍 䉋䈶ᶏ ᳓ ਛ 䈱 㪪㪝 㪍 Ớ ᐲ 䈱▚ ಴ 㩷 Figure 2-3 ߦߪ‫ߢ⟎ⵝᧄޔ‬ᓧࠄࠇߚ SF6 ߩࠢࡠࡑ࠻ࠣ࡜ࡈࠍ␜ߔ‫ޕ‬ᓟㅀߔࠆಽᨆ᧦ઙߩਅߢߪ߅ࠃߘ 1.5 ಽߢ
SF6 ߩࡇ࡯ࠢ߇ᬌ಴ߐࠇࠆ‫ߩࠢ࡯ࡇߩߎޕ‬㕙Ⓧࠍࠗࡦ࠹ࠣ࡟࡯࠲ߢ⸘▚ߐߖ‫ߦߣ߽ࠍࠇߘޔ‬ᄢ᳇ਛ޽ࠆ޿ߪᶏ᳓
ਛߩ SF6 ߩỚᐲࠍ▚಴ߔࠆ‫ޕ‬ ↪޿ߚቯኈ▤ߩኈ㊂ࠍ V㧔cm3㧕‫ޔ‬ቯኈᤨߩ᳇࿶߅ࠃ߮᳇᷷ࠍ P㧔hPa㧕߅ࠃ߮ T㧔͠㧕‫ߚ߹ޔ‬㧟┨ߢㅀߴࠆᬌ
㊂✢ߦࠃࠅ᳞߼ࠄࠇߚቯኈߐࠇߚ⹜ᢱߩ mol ᢙࠍ㧔M㧕߅ߊߣ‫ޔ‬ᄢ᳇ਛߩ SF6 Ớᐲ㧔PSF6air㧕ߪ

PSF6air (ppt) = M×22.4×103 /㨧V ×(1013.25 / P×293.15 / (273.15 + T))㨩×1012
                       ߣ⴫ߔߎߣ߇ߢ߈ࠆ‫ޕ‬ ߹ߚ‫ޔ‬ᶏ᳓ਛߩ SF6 Ớᐲߪ‫ޔ‬ᶏ᳓㧝kg ߦ฽߹ࠇࠆ mol ᢙߣߒߡ⴫ߔߎߣߦߥߞߡ޿ࠆߩߢ‫ޔ‬ᶏ᳓ߩኒᐲࠍ㨐ߣ߅ߊߣ‫ޔ‬ᶏ᳓ਛߩỚᐲ㨇SF6㨉ߪ

㨇SF6㨉(fmol/kg) = M / V / d ×1015

ߢ⴫ߐࠇࠆ‫ޕ‬

Figure 2-3 Effect of trapping time on SF6 recoveries.
− 14 −

気象研究所技術報告

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2007㪉㪄㪌㪅㩷 㩷 ಽᨆ᧦ઙ䈱᳿ቯ㩷 SF6 ߩಽᨆߦ㒢ࠄߕ‫ޔ‬ಽ㔌࡮Ớ❗(Trap and Purge)ࠍ↪޿ߚࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡈᴺߦ߅޿ߡߪᔅߕ᳿ቯߒߥߌ
ࠇ߫ߥࠄߥ޿ಽᨆ᧦ઙ߇޿ߊߟ߆ሽ࿷ߔࠆ‫⊛⋡߃ߣߚޔߪࠇߘޕ‬ᚑಽ߇หߓߢ޽ߞߚߣߒߡ߽‫߼⹣ߩࡓ࡜ࠞޔ‬ౕว߿లႯ೷ߩࠛ࡯ࠫࡦࠣߩ઀ᣇ‫ߚߒߣߞࠂߜޔ‬⣕᳇╴߿㈩▤ߩᒻ⁁ߥߤߦࠃߞߡᓸᅱߦᄌࠊࠆ߽ߩߢ޽ࠆ‫ޕ‬
Purge and Trap ᴺߦ߅޿ߡቯ㊂⊛ߦಽᨆࠍⴕ߁ߚ߼ߦᔅⷐߥߎߣߪ‫ࠍߡߴߔޟޔ‬಴ߒಾࠅ(purge)‫ࠍߡߴߔޔ‬᝝߹߃(trap)‫ࠍߡߴߔޔ‬ᬌ಴ེߦዉ౉ߔࠆ‫ߪߢߎߎޕࠆ޽ߢߣߎޠޕ‬೎ߩࠪࠬ࠹ࡓߢಽᨆࠍⴕߥ߁ߣ߈ߩෳ⠨ߣߢ߈ࠆࠃ߁‫ࠅߚ޽ߦࠆߔ↪૶ࠍࡓ࠹ࠬࠪᧄޔ‬ಽᨆ᧦ઙࠍ᳿ቯߒߚᣇᴺࠍ⸥ߔ‫ޕ‬ ߥ߅‫ߩࡊ࠶࡜࠻ޔ‬಄ළ߅ࠃ߮ട᷷᷷ᐲ(-70͠߅ࠃ߮ 80͠)‫ࡓ࡜ࠞ࡟ࡊޔ‬᷷ᐲ߅ࠃ߮ࡔࠗࡦࠞ࡜ࡓ᷷ᐲ(65͠)‫ޔ‬ࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡈ࠺ࠖ࠹ࠢ࠲᷷ᐲ(330͠)‫ޔ‬⣕᳇ᵹ㊂(200cm3/min)߅ࠃ߮ࠟࠬࠢࡠࡑ࠻ࠣ࡜ࡈᵹ㊂(40cm3/min)ߩ߶߆‫ࡓ࡜ࠞࠆ޿↪ޔ‬㘃ߩ᧦ઙ㧔Table 2-1㧕ߦߟ޿ߡߪ Wanninkhof et al. (1991)‫ޔ‬Upstill-Goddard et al. (1991)‫ޔ‬Maiss et al. (1996)‫ޔ‬㑆ᧁߣਅፉ (2002)ߥߤࠍෳ⠨ߦߒ‫ޔ‬ಽᨆ᧦ઙߩ᳿ቯߦ㓙ߒߡߪߎࠇࠄࠍ࿕ቯ᧦ઙߣߒߚ‫ޕ‬㪉㪄㪌㪄㪈㪅㩷 䊃䊤䉾䊒଻ᜬᦨᄢᤨ㑆䈱⏕⹺㩷 ਄⸥ߩ࠻࡜࠶ࡊ಄ළ᷷ᐲ෸߮⣕᳇ᵹ㊂᧦ઙߩਅߢߤࠇߊࠄ޿㐳ߊ⋡⊛ᚑಽߢ޽ࠆ SF6 ࠍ࠻࡜࠶ࡊࠞ࡜ࡓ߇ቯ
㊂⊛ߦ଻ᜬߒ߁ࠆ߆‫ߜࠊߥߔޔ‬೨ㅀߩ‫ޟ‬᝝߹߃ࠆ‫ޠ‬ᠲ૞ࠍቯ㊂⊛ߦⴕ߁ߚ߼ߩᤨ㑆ࠍ᳿߼ࠆ߽ߩߢ޽ࠆ‫ޕ‬SF6
ᮡḰࠟࠬࠍࠟࠬቯኈ▤ߢቯኈߒ‫ޔ‬಄ළߒߡ޽ࠆ࠻࡜࠶ࡊߦᮡḰࠟࠬࠍㅍࠅㄟߺ‫ᤨࠆߖߐࡊ࠶࡜࠻ޔ‬㑆ࠍᄌ߃ࠆߎ
ߣߢ‫ࡊ࠶࡜࠻ޔ‬਄㒢ᤨ㑆ࠍ᳿ቯߔࠆ‫ߢߣ޽ޔ߈ߣߩߎޕ‬ㅀߴࠆࡃ࠶ࠢࡈ࡜࠶ࠪࡘᠲ૞ߦࠃߞߡ SF6 ߩࡇ࡯ࠢ߇
ಾࠇߥ޿ࠃ߁‫ޔ‬㐳߼(㧞⑽⒟ᐲ)ߩࡃ࠶ࠢࡈ࡜࠶ࠪࡘ߹ߢߩᤨ㑆ࠍ⸳ቯߔࠆߎߣ߇ᔅⷐߢ޽ࠆ‫ޕ‬Figure 2-4 ߦ‫ޔ‬⒳‫ޘ‬ߩ࠻࡜࠶ࡊᤨ㑆ߦኻߒߡ᷹ቯߐࠇߚࡇ࡯ࠢ㕙Ⓧࠍ␜ߔ‫⚿ߩߘޕ‬ᨐ‫ ߘࠃ߅ޔ‬12 ಽ㑆⒟ᐲߢ޽ࠇ߫਄⸥᧦ઙߢቯ㊂⊛ߦ SF6 ࠍ଻ᜬߒ߁ࠆߎߣ߇⏕⹺ߐࠇߚ‫ޕ‬

50000

Peak Area

45000

40000

35000

30000
0

5

10
15
Time (Minute)

20

25

Figure 2-4 Effect of bubbling time on SF6 recoveries for 300cm3 of seawater.

㪉㪄㪌㪄㪉㪅㩷 ⣕᳇ᤨ㑆㩿䊃䊤䉾䊒ᤨ㑆㪀䈱᳿ቯ㩷 ⹜ᢱᶏ᳓߆ࠄ਄ㅀߩ᧦ઙߩਅߢ‫ోޟ‬ㇱ಴ߔ‫ᤨߩߤ߶ࠇߤߦ߼ߚޠ‬㑆ࠍⷐߔࠆ߆ࠍ⏕⹺ߔࠆ߽ߩߢ޽ࠆ‫ޕ‬⣕᳇╴ౝߢቯኈߐࠇߚᶏ᳓㧔ߎߩߚ߼ߦ૶↪ߔࠆᶏ᳓ߪ᳓㌁߇౉ߞߡ޿ߥ޿߽ߩߥࠄ᳹ߺ⟎޿ߚ߽ߩߢ߽น㧕ࠍ޽ࠆᤨ㑆ߢ⣕᳇‫ޔ‬Ớ❗߅ࠃ᷹߮ቯࠍⴕߞߚᓟ‫ޔ‬ౣ߮หߓᶏ᳓ߦߟ޿ߡ⣕᳇ಽᨆᠲ૞ࠍⴕߞߡ‫ޔ‬㧝࿁⋡ߩ⣕᳇ߣ㧞࿁⋡ߩ⣕᳇ߢᓧࠄࠇࠆ SF6 ㊂㧔Ⓧ▚⸘ߩࠪࠣ࠽࡞୯㧕߆ࠄ⣕᳇ᤨ㑆ߦኻߔࠆ⣕᳇ല₸ࠍ᳞߼ࠆ㧔Figure 2-5㧕‫⚿ߩߎޕ‬− 15 −

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2007ᨐ‫ޔ‬㧠ಽ㑆ߩ⣕᳇ᠲ૞ߢ߶߷ߔߴߡߩ SF6 ߇ᶏ᳓⹜ᢱ߆ࠄ⣕᳇ߐࠇࠆߎߣ߇ࠊ߆ߞߚ‫ޕ‬వߩታ㛎ߩ⚿ᨐ߆ࠄ 12
ಽ⒟ᐲ߹ߢߩ⣕᳇ᤨ㑆ߢ޽ࠇ߫ቯ㊂⊛ߦ SF6 ߇࠻࡜࠶ࡊࠞ࡜ࡓౝߦ଻ᜬߐࠇࠆߎߣ߇ࠊ߆ߞߡ޿ࠆߩߢ‫ࠪᧄޔ‬ࠬ࠹ࡓߩ⣕᳇ᤨ㑆ߪ㧢ಽ㑆ߣ᳿ቯߒߚ‫ޕ‬

110
100
Efficiency (%)

90
80
70
60
50
40
30
0

2

4

6
Time (Minute)

8

10

12

Figure 2-5 Effect of Backflushing time on SF6 recoveries.

㪉㪄㪌㪄㪊㪅㩷 䊋䉾䉪䊐䊤䉾䉲䊠ᤨ㑆䈱᳿ቯ㩷 ᶏ᳓⹜ᢱ߿ᄢ᳇⹜ᢱࠍಽᨆߔࠆ㓙‫଻ߦࡓ࡜ࠞࡊ࠶࡜࠻ޔ‬ᜬߐࠇࠆߩߪ SF6 ߩߺߢߪߥ޿‫ޕ‬SF6 ࠃࠅ߽ࡔࠗࡦಽ
ᨆࠞ࡜ࡓߦ߅ߌࠆ଻ᜬᤨ㑆㧔࡝࠹ࡦ࡚ࠪࡦ࠲ࠗࡓ㧕ߩ㐳޿ᚑಽ߇࠻࡜࠶ࡊߐࠇ‫ࠍࡓ࡜ࠞࡦࠗࡔޔ‬ㅢߞߡ࠺ࠖ࠹ࠢ
࠲ߦะ߆ߞߚߣߔࠇ߫‫ ߩ⊛⋡ޔ‬SF6 ߩࡇ࡯ࠢ߇಴߈ߞߚ޽ߣߢߐ߃‫ޔ‬ਇⷐߥࡇ࡯ࠢࠍᬌ಴ߒ⛯ߌࠆߎߣߣߥࠆ‫ޕ‬ߎߩߎߣߪ‫⹜৻ޔ‬ᢱߩಽᨆᤨ㑆ࠍ㐳ߊߒߡߒ߹߁ߛߌߢߥߊ‫ޔߒੂࠍࡦࠗ࡜ࠬ࡯ࡌߩࡈ࡜ࠣ࠻ࡑࡠࠢޔ‬ಽᨆ♖ᐲ߿ᬌ಴㒢⇇ߦߣߞߡਇ೑ߥಽᨆ᧦ઙࠍ૞ߞߡߒ߹߁‫ࠍࠇߘޕ‬㒐ߋߚ߼‫ޔ‬ಽᨆࠪࠬ࠹ࡓౝߦ‫ࡘࠪ࠶࡜ࡈࠢ࠶ࡃޟ‬ᯏ᭴‫ࠍࠇߘߣࡓ࡜ࠞ࠻࠶ࠞ࡟ࡊޔߪࠇߎޕࠆߌ⸳ࠍޠ‬ขࠅઃߌߚಾ឵ࡃ࡞ࡉߢ᭴ᚑߐࠇߡ޿ߡ‫ࡦࠗࡔޔ‬ಽᨆࠞ࡜ࡓ
ߩ਄ᵹߦ⸳⟎ߔࠆ‫ޕ‬ಽᨆኻ⽎‛⾰㧔ߎߎߢߪ SF6㧕߇ࡊ࡟ࠞ࠶࠻ࠞ࡜ࡓ߆ࠄࡔࠗࡦಽᨆࠞ࡜ࡓߦ⒖േߒߚߣߎࠈ
ߢࡃ࡞ࡉࠍಾࠅ឵߃‫ࠍࠬࠟ࡯ࠕ࡝ࡖࠠߩࡓ࡜ࠞ࠻࠶ࠞ࡟ࡊޔ‬ㅒᵹߒߡࡊ࡟ࠞ࠶࠻ࠞ࡜ࡓౝߦᱷߞߚ଻ᜬᤨ㑆ߩ㐳޿㕖ኻ⽎ᚑಽࠍ♽ᄖߦឃ಴ߔࠆ‫ ࠆߔߣ⊛⋡ޔ߼ߚߩߘޕ‬SF6 ߇ࡊ࡟ࠞ࠶࠻ࠞ࡜ࡓࠍㅢㆊߔࠆ߹ߢߩᤨ㑆ࠍ᳿ቯߔࠆᔅⷐ߇޽ࠆ‫ޕ‬Figure 2-6 ߦߪᮡḰࠟࠬ⹜ᢱߦߟ޿ߡ‫ޔ‬వߦ᳿߼ߚᤨ㑆࠻࡜࠶ࡊࠍⴕߞߚᓟ‫ࠍࡊ࠶࡜࠻ޔ‬ട
50000

Peak Area

40000
30000
20000
10000
0
20

.

40

60

80
Time (sec.)

100

Figure2-6 Effect of Stripping time on SF6 recoveries.
− 16 −

120

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気象研究所技術報告

第 51 号

2007᷷ߒߡ‫ ࠄ߆ࡊ࠶࡜࠻ޔ‬GC ஥߳ߣ⋡⊛ᚑಽࠍ฽߻ࠟࠬ߇ㅍࠅ಴ߐࠇߡ߆ࠄߩᤨ㑆ߦኻߔࠆ SF6 ߩࡇ࡯ࠢ㕙Ⓧࠍ␜ߔ‫⚿ߩߘޕ‬ᨐߪ‫ ߘࠃ߅ޔ‬50 ⑽ߩࡃ࠶ࠢࡈ࡜࠶ࠪࡘᤨ㑆߇⏕଻ߐࠇࠇ߫⋡⊛ᚑಽߪࡊ࡟ࠞ࠶࠻ߐࠇࠆߎߣߥߊ
ቯ㊂⊛ߦࡔࠗࡦࠞ࡜ࡓߦ߹ߢ೔㆐ߒ‫ࠅ౉ߣ߳࠲ࠢ࠹ࠖ࠺ޔ‬ᬌ಴ߐࠇࠆߎߣ߇ࠊ߆ߞߚ‫ޕ‬ ਄⸥ߢ⺞ߴࠄࠇߚฦ᧦ઙࠍၮߦ‫ޔ‬SF6 ಽᨆࠪࠬ࠹ࡓߩಽᨆ᧦ઙࠍ‫ޔ‬Table 2-3 ߦ߹ߣ߼ߡ߅ߊ‫ ߅ߥޕ‬2-4-1 ߩታ㛎߆ࠄߎߩ࠻࡜࠶ࡊ᷷ᐲ‫ޔ‬⣕᳇ᵹ㊂ߩ߽ߣߢߪ‫ޔ‬઒ߦ 10 ಽ㑆ߩ⣕᳇ᠲ૞ࠍⴕߞߡ߽࠻࡜࠶ࡊ߆ࠄ⋡⊛ᚑಽ߇ᛮߌߡߒ߹ࠊߥ޿ߎߣ߇ࠊ߆ߞߡ޿ࠆ‫ᤨߩߘޔߡߞ߇ߚߒޕ‬㑆ౝߢ޽ࠇ߫ቯኈߒߚࠟࠬࠍⶄᢙ࿁ಽ࠻࡜࠶ࡊߔࠆ
ߎߣ߽น⢻ߢ޽ࠆ‫ޕ‬㪉㪄㪍㪅㩷 ಽᨆ䉲䉴䊁䊛䈱଻቞䊶▤ℂ㩷 ࠪࠬ࠹ࡓ߇ᳪᨴߐࠇࠆߣ‫ࠢࡦ࡜ࡉޔ‬୯߇਄߇ࠅ‫⚿ޔ‬ᨐߣߒߡᬌ಴㒢⇇୯ߪᄢ߈ߊߥࠅ‫ޔ‬ಽᨆ♖ᐲ߽ૐਅߒߡߒ
߹߁‫ࠍ࠲ࠢ࠹ࠖ࠺ߦࠄߐޕ‬ᳪߒߡߒ߹߁ߣ‫߇ࡦࠗ࡜ࠬ࡯ࡌޔ‬ਇ቟ቯߣߥࠆߩߺߢߥߊ‫ޔ‬ᬌ಴ᗵᐲ߇ૐਅߔࠆ‫ߘޕ‬ߩߚ߼‫߃ߣߚޔ‬ಽᨆࠍⴕߞߡ޿ߥ޿ߣ߈ߢ޽ߞߡ߽‫ߪ࠲ࠢ࠹ࠖ࠺߿ࡦࡉ࡯ࠝࡈ࡜ࠣ࠻ࡑࡠࠢࠬࠟޔ‬᷷ᐲࠍ਄ߍ‫ޔ‬ᵺൻߒߚࠠࡖ࡝ࠕࠟࠬࠍㆡᒰ㊂ᵹߒߡ߅޿ߚᣇ߇ࠃ޿‫࠻ࡦ࡚ࠗࠫޕ‬㘃ࠍߟߥ߉⋥ߔߣ߈‫ࠬࠟࠕ࡝ࡖࠠߪ޿ࠆ޽ޔ‬߿ᮡḰࠟࠬࡏࡦࡌࠍ੤឵ߔࠆߣ߈ߦߪ‫ޔ‬ᚻ߿Ꮏౕ‫࠻ࡦ࡚ࠗࠫޔ‬㘃‫ࡦࠠ࠶ࡄޔ‬㘃╬ࠍࠕ࠮࠻ࡦߢࠃߊ᜞޿ߡ߆ࠄ૞
ᬺࠍⴕ߁ᔅⷐ߇޽ࠆ‫ࠢࡦ࡜ࡉޔߒ߽ޕ‬୯߇㜞ߊߥߞߡ߈ߚߣ߈ߦߪ‫ߦߎߤޔ‬ᳪᨴߩේ࿃߇޽ࠆߩ߆ࠍᣧᕆߦ⓭߈ᱛ߼‫ޔ‬ᔅⷐ߇޽ࠇ߫ࡄ࡯࠷ࠍ੤឵ߔࠆ‫ޕ‬ ࠺ࠖ࠹ࠢ࠲ߩᬌ಴ᗵᐲࠍࡕ࠾࠲࡯ߔࠆߚ߼ߦ‫ޔ‬ᮡḰࠟࠬߩಽᨆ⚿ᨐߩߺࠍ⸥ㅀߒߚࡁ࡯࠻ࠍ૞ᚑߔࠆߎߣࠍ൘
߼ࠆ‫ߦ࠲ࠢ࠹ࠖ࠺ޕ‬ዉ౉ߒߚ SF6 ߩ mol ᢙߦኻߔࠆࡇ࡯ࠢ㕙ⓍߩᲧ₸߇ૐਅߒߡ߈ߚࠄ‫ߕ߹ޔ‬ᆎ߼ߦ࡜ࠗࡦ߆
ࠄߩ࡝࡯ࠢ߿ࠞ࡜ࡓߩഠൻࠍ⇼߁ᔅⷐ߇޽ࠆ߇‫߇࠲ࠢ࠹ࠖ࠺ޔ‬ᳪࠇࠆߎߣߦࠃߞߡ߽ᬌ಴ᗵᐲߪૐਅߔࠆ‫ߩߘޕ‬ߣ߈ߦߪ‫࠲ࠢ࠹ࠖ࠺ޔ‬᷷ᐲࠍ਄ߍߡᳪᨴ‛ࠍ὾߈ߣ߫ߔߥߤߩ◲නߥᣇᴺߢᡷༀߐࠇࠆ႐ว߽޽ࠆ߇‫ޔ‬࿁ᓳߒߥ޿႐วߦߪኾ㐷ߩᬺ⠪ߦ࠺ࠖ࠹ࠢ࠲ߩᵞᵺࠍଐ㗬ߔࠆߒ߆ߥ޿‫߁ࠃ޿ߥࠄߥ߁ߘޕ‬ᣣ㗃߆ࠄᵈᗧߔࠆߎߣ߇ᄢಾ
ߣߥࠆ‫ޕ‬

Table 2-3 Analytical conditions for determination of SF6 by GC-ECD.

㪪㪸㫄㫇㫃㪼㩷㪭㫆㫃㫌㫄㪼㩷㩿㪪㪼㪸㫎㪸㫋㪼㫉㪀㪑㩷㪉㪐㪏㪅㪇㪋㪂㪇㪅㪍㪉㫄㫃㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩿㪞㪸㫊㪀㪑㪈㪅㪋㪏㪊㫄㫃 㪊㪅㪇㪊㪊㫄㫃㪧㫌㫉㪾㫀㫅㪾㩷㩿㫋㫉㪸㫇㫇㫀㫅㪾㪀㩷㫋㫀㫄㪼㪑㪍㫄㫀㫅㪧㫌㫉㪾㪼㩷㪾㪸㫊㩷㪽㫃㫆㫎㩷㫉㪸㫋㪼㪑㪉㪇㪇㫄㫃㪆㫄㫀㫅㪚㫆㫆㫃㫀㫅㪾㩷㫋㪼㫄㫇㪼㫉㪸㫋㫌㫉㪼㩷㫆㪽㩷㫋㪿㪼㩷㫋㫉㪸㫇㪑 㪄㪎㪌㷄㪟㪼㪸㫋㫀㫅㪾㩷㫋㪼㫄㫇㪼㫉㪸㫋㫌㫉㪼㩷㫆㪽㩷㫋㪿㪼㩷㫋㫉㪸㫇 㪏㪇㷄㪞㪚㩷㫆㫍㪼㫅㩷㫋㪼㫄㫇㪼㫉㪸㫋㫌㫉㪼㪑㪍㪌㷄㪚㪸㫉㫉㫀㪼㫉㩷㪾㪸㫊㩷㪽㫃㫆㫎㩷㫉㪸㫋㪼㪑㪋㪇㫄㫃㪆㫄㫀㫅
㪜㪚㪛㩷㫋㪼㫄㫇㪼㫉㪸㫋㫌㫉㪼㪑㪊㪊㪇㷄

− 17 −

気象研究所技術報告

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2007

㩷

3.

標準ガスと標準化㩷㪊㪄㪈㪅㩷 㪤㪩㪠㩷㪪㪝㪍㩷㪚㪸㫃㫀㪹㫉㪸㫋㫀㫆㫅㩷㪪㪺㪸㫃㪼㩷 ᮡḰ‛⾰ߪỚᐲࠍ᳿߼ࠆ”߽ߩߐߒ”ߢ޽ࠆ‫ޕ‬SF6 ߦ㑐ߒߡߪ‫ᤨ⃻ޔ‬ὐߢߪ⛔৻⊛ߦෳᾖߐࠇߡ޿ࠆᮡḰ‛⾰ߪߥ޿‫ᦨޕ‬ೋߦ⸥ㅀߒߚࠃ߁ߦ‫ޔ‬ㆊ෰ߩ࠺࡯࠲߿ઁᯏ㑐ߩ࠺࡯࠲ߣᲧセน⢻ߥ࠺࡯࠲ࠍขᓧߔࠆߚ߼ߦᚒ‫߇ޘ‬ᮡḰ‛⾰ߦߟ޿ߡⴕࠊߥߌࠇ߫ߥࠄߥ޿ߎߣߪ‫⥄ޔ‬ಽߚߜߩ”߽ߩߐߒ”㧔ࠬࠤ࡯࡞㧕ࠍ▤ℂߒ‫⛽ޔ‬ᜬߒ⛯ߌ‫ߩ৻⛔ޔ‬ࠬࠤ࡯࡞߇ቢᚑߒߚߣ߈ߦߘࠇߣᾖࠄߒวࠊߖࠆߎߣ߇ߢ߈ࠆࠃ߁ߦߒߡ߅ߊ‫ߢߎߘޕ‬ᚒ‫࡞࡯ࠤࠬߩ⥄⁛ߪޘ‬㧔MRI SF6 Calibration Scale㧕ࠍ૞ᚑߒ‫⛽ޔ‬ᜬߒߡ޿ࠆ‫ޕ‬ ᚒ‫ࠬࠟߪޘ‬లႯߩߚ߼ߩࠪࠬ࠹ࡓࠍᚲ᦭ߒߡ޿ࠆࠊߌߢߪߥ޿ߩߢ‫ޔ‬ᚒ‫ߩޘ‬ᮡḰࠟࠬߩߔߴߡߪ JFP ␠ߢ૞⵾ߒߡ޿ࠆ‫ޕ‬లႯኈེߦߪ‫ޔ‬10L ߩࠕ࡞ࡒ࠾࠙ࡓว㊄ኈེߦ㧝S ౝ㕙⎇⏴㧔ౝ㕙☻ᐲ߇⚂㧝Ǎm㧕ࠍᣉߒߚ߽ߩ
ߦ‫ࡓ࡜ࡈࡗࠗ࠳ࠬ࡟ࡦ࠹ࠬޔ‬ᑼߩኈེ↪ᑯࠍขࠅઃߌߚ߽ߩࠍ↪޿ߡ޿ࠆ‫ޕ‬ኈེ↪ᑯขࠅઃߌᓟ‫ޔ‬ടᾲ⌀ⓨឃ᳇ࠍⴕߞߡ߆ࠄ‫ޔ‬ፉᵤ⵾૞ᚲ␠⵾ߩᄢ⾰㊂♖ኒᄤ⒊㧔ᦨᄢ⒊㊂ 30kg‫ޔ‬ಽ⸃⢻ 1mg㧕ࠍ↪޿ߚ⾰㊂Ყᷙวᴺ㧔㊀㊂
లႯᴺ㧕ߦࠃࠅ‫߇ࠬࠟޔ‬లႯߐࠇࠆ‫ߩߎޕ‬ᄤ⒊ߩ♖ᐲߪᦨᄢߢ߽±0.01㧑⒟ᐲߢ޽ࠆߎߣ߆ࠄᧄ⎇ⓥߢ㐿⊒ߒߚࠪࠬ࠹ࡓߩಽᨆ♖ᐲࠍ㧝㨪1.5 ᩴ߶ߤ਄࿁ࠆ߽ߩߣ޿߃ࠆ‫ޕ‬1998 ᐕ 12 ᦬ߦ‫ޔ‬㊀㊂లႯᴺߢ૞ᚑߒߚᮡḰࠟࠬ㧔ኈེ⸥ภ⇟ภ CPB-18451㧕ߦߟߌࠄࠇߚ SF6 ߩỚᐲ㧔5.002ppt㧕ࠍᚒ‫ߦߣߎࠆߔߣ࡞࡯ࠤࠬߩޘ‬᳿߼ߚ‫ࠊߥߔޕ‬ߜߎߩᮡḰࠟࠬ㧔ᓟㅀߔࠆ߽ߩߣ඙೎ߔࠆߚ߼ߦ‫ߣޠࠬࠟ࠼࡯࠳ࡦ࠲ࠬ࡯࡝ࡑࠗ࡜ࡊޟ‬๭߱‫ޕ‬㧕ࠍ㧝ᰴᮡḰࠟࠬߣߒ‫⃻ޔ‬႐ߢ૶↪ߔࠆᮡḰࠟࠬ㧔ࡢ࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬ㧕ߦߪߎߩࠟࠬࠍ↪޿ߡᮡḰൻࠍⴕ޿‫ߦ⊛⚳ᦨޔ‬⹜ᢱߩ୯ࠍ᳿ቯߒߡ޿ߊߎߣߣߥࠆ‫ߩߎޕ‬ᮡḰࠟࠬߦߪ‫ ߦࠇߘޔߒߣࠬࠟࠬ࡯ࡌࠍ⚛⓸ޔ‬SF6 ߩߺ߇ᷝടߐࠇ
ߡ޿ࠆ‫ޕ‬ ᮡḰࠟࠬߦ৻⇟᳞߼ࠄࠇࠆߎߣߪߘࠇ⥄りߩỚᐲ߇ᤨ㑆⊛ߦᄌൻߒߥ޿ߎߣߢ޽ࠆ‫ޔߒ߆ߒޕ‬㧝ᰴᮡḰࠟࠬߣ޿߃ߤ߽ᤨ㑆ᄌൻߒߥ޿ߣ޿߁଻⸽ߪߥ޿‫⥄ߪߢߺߩࠇߘ߽߆ߒޕ‬りߩỚᐲᄌൻߩ᦭ήࠍ࠴ࠚ࠶ࠢߔࠆߎߣߪߢ
߈ߥ޿‫ޔߢߎߘޕ‬หᤨᦼߦห᭽ߥኈེߦหߓᚻᴺߢ㧟ᧄߩᮡḰࠟࠬ㧔CPB-19055, CPB-19056, CPB-19057㧕ࠍ૞ᚑߒ‫ޔ‬వߩࡊ࡜ࠗࡑ࡝࡯ࠬ࠲ࡦ࠳࡯࠼ࠟࠬߢᮡḰൻࠍⴕ޿‫ࠄࠇߎޔ‬㧠ᧄߩ㧝ᰴᮡḰࠟࠬ㑆ߢ⋧੕ߦỚᐲᄌൻࠍ࠴ࠚ࠶ࠢߔࠆ૕೙ࠍᢛ߃ߚ‫ߢࠬࠟ࠼࡯࠳ࡦ࠲ࠬ࡯࡝ࡑࠗ࡜ࡊޔߦߺߥߜޕ‬ᮡḰൻߐࠇߚ SF6 ߩỚᐲߣ‫ޔ‬㊀㊂ల
Ⴏᴺߢ᳿߼ߚ SF6 ߩỚᐲߪታߦࠃߊ৻⥌ߒߚ㧔Table 3-1㧕‫ࠄࠇߎޕ‬㧠ᧄߩ㧝ᰴᮡḰࠟࠬߩ⋧੕ᬌቯߪ⃻࿷ߦ⥋ࠆ
Table 3-1 Calibrated values of SF6 Primary Standards.

㪫㪸㫅㫂㩷㪥㫆㪅
㫇㫇㫋㪚㪧㪙㪈㪏㪋㪌㪈 㪧㫉㫀㫄㪸㫉㫐㪚㪧㪙㪈㪐㪇㪌㪌
㪈㪇㪅㪈㫧㪇㪅㪈
㪚㪧㪙㪈㪐㪇㪌㪍
㪎㪅㪈㪋㫧㪇㪅㪇㪋㪚㪧㪙㪈㪐㪇㪌㪎
㪊㪅㪇㪉㫧㪇㪅㪇㪊㩿㪌㪅㪇㪇㪉㪀
㩿㪈㪇㪅㪇㪎㪀
㩿㪎㪅㪈㪋㪈㪀
㩿㪊㪅㪇㪊㪉㪀

㪤㪼㪻㫀㪸㩷㪾㪸㫊 㪩㪼㫄㪸㫉㫂㪥㪉㪥㪉㪂㪦㪉 㫀㫅㪺㫃㫌㪻㫀㫅㪾䇭䋳㪚㪝㪚㫊㪥㪉㪂㪦㪉 㫀㫅㪺㫃㫌㪻㫀㫅㪾䇭䋳㪚㪝㪚㫊㪥㪉㪂㪦㪉 㫀㫅㪺㫃㫌㪻㫀㫅㪾䇭䋳㪚㪝㪚㫊߹ߢⴕߞߡ޿ࠆ‫ౕޕ‬૕⊛ߦߪ  1. ࡊ࡜ࠗࡑ࡝࡯ࠬ࠲ࡦ࠳࡯࠼ࠟࠬߢ‫ߩઁޔ‬㧟ᧄߩ㧝ᰴᮡḰࠟࠬߩỚᐲߩ᷹ቯࠍⴕ޿‫ߥ⊛ᤨ⚻ޔ‬Ớᐲᄌൻ߇⿠ߎߞߡ޿ߥ޿߆࠴ࠚ࠶ࠢߔࠆ‫ޕ‬  2. ࡊ࡜ࠗࡑ࡝࡯ࠬ࠲ࡦ࠳࡯࠼ࠟࠬએᄖߩ㧟ᧄߩ㧝ᰴᮡḰࠟࠬߩᦨೋߦ᳿߼ࠄࠇߚỚᐲࠍ↪޿ߡࡊ࡜ࠗࡑ࡝
࡯ࠬ࠲ࡦ࠳࡯࠼ࠟࠬߩỚᐲࠍ⸘▚ߒ‫ߥ⊛ᤨ⚻ߦࠬࠟ࠼࡯࠳ࡦ࠲ࠬ࡯࡝ࡑࠗ࡜ࡊޔ‬Ớᐲߩᄌൻ߇⿠ߎߞߡ޿ߥ޿߆
ࠍ࠴ࠚ࠶ࠢߔࠆ‫ޕ‬− 18 −

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2007

 Figure 3-1 ߦ‫ޔ‬㧠ᧄߩ㧝ᰴᮡḰࠟࠬߩ SF6 ߩᬌቯ୯ߩᤨ♽೉ᄌൻࠍ␜ߔ߇‫ ߩࠇߕ޿ߩࡌࡦࡏߩࠇߕ޿ޔ‬SF6ߦߟ޿ߡ߽ᚒ‫ߩޘ‬ಽᨆ♖ᐲࠍ⿥߃ࠆࠃ߁ߥỚᐲߩᄌൻߪ⃻ᤨὐߢߪ⿠ߎߞߡ޿ߥ޿ߎߣ߇ࠃߊࠊ߆ࠆ‫ޕ‬
CPB18451
CPB19055
CPB19056
CPB19057

12

8

6

Calibrated SF (ppt)

10

6
4
2
0
Apr., 2006

Aug., 2006

Dec., 2006 Apr., 2007
Time

Aug., 2007

Dec., 2007

Figure 3-1 Change in concentration of SF6 in MRI Primary Standard gases.

㪊㪄㪉㪅㩷 䊪䊷䉨䊮䉫䉴䉺䊮䉻䊷䊄䉧䉴䈱ᬌቯ䊶▤ℂ㩷 㧝ᰴᮡḰࠟࠬߪ߈ࠊ߼ߡ㊀ⷐߥ߽ߩߢ޽ࠆ߆ࠄ‫․ޔ‬೎ߥ႐วએᄖߪ᷹ⷰߩߚ߼ߦ⎇ⓥቶ߆ࠄᜬߜ಴ߒ૶↪ߔࠆߎߣ߇޽ߞߡߪߥࠄߥ޿‫⃻ߢߎߘޕ‬႐⹜ᢱߩಽᨆߦ㓙ߒ‫⃻ޔ‬႐↪ᮡḰࠟࠬ㧔ࡢ࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬ㧕ࠍ૞⵾ߒ‫ޕࠆߔ↪૶ޔ‬ᚒ‫⃻ߩޘ‬႐↪ᮡḰࠟࠬߪ‫ޔ‬㧝ᰴᮡḰࠟࠬߣห᭽ߥኈེߦห᭽ߥᚻᴺߢ૞⵾ߐࠇߡ޿ࠆ‫ޕ‬૞⵾ߒߚࡢ࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬࠍ↪޿ߡᦨ⚳⊛ߦ⹜ᢱߩ SF6 ߩỚᐲࠍ᳿ቯߔࠆ㧔ᮡḰൻ㧕߹ߢߦᚒ‫ߪޘ‬ᰴߩࠃ߁ߥᚻ㗅ࠍ〯ࠎߢ޿ࠆ‫ޕ‬Ԙ 㧝ᰴᮡḰࠟࠬߦࠃࠆࡢ࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬߩᬌቯԙ ᬌቯ୯ߩࡕ࠾࠲࡯㧔⚂㧞ࡩ᦬Ფ㧕Ԛ ࡢ࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬߩ⃻႐ߢߩ૶↪
ԛ ࡢ࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬߩᦨ⚳ᬌቯԜ ⃻႐࠺࡯࠲ߩᮡḰൻߘࠇߙࠇߦߟ޿ߡએਅߦ⹦⚦ࠍ⸥ㅀߔࠆ‫ޕ‬㪊㪄㪉㪄㪈㪅㩷 䋱ᰴᮡḰ䉧䉴䈮䉋䉎䊪䊷䉨䊮䉫䉴䉺䊮䉻䊷䊄䉧䉴䈱ᬌቯ㩷 ࡢ࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬߪ૞⵾ᓟ⋥ߜߦ‫ޔ‬㧝ᰴᮡḰࠟࠬࠍ↪޿ߡᮡḰൻߔࠆ‫ޕ‬వߩ㧝ᰴᮡḰࠟࠬห᭽‫ࡢޔ‬࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬߦߟ޿ߡ߽‫ޔ‬㧝ᰴᮡḰࠟࠬߢᮡḰൻߐࠇߚ SF6 ߩỚᐲߣ‫ޔ‬㊀㊂లႯᴺߢ᳿߼ࠄࠇߚ
SF6 ߩỚᐲߦߪ᦭ᗧߥᏅߪ⹺߼ࠄࠇߥ޿㧔Table 3-2㧕‫ޕ‬− 19 −

気象研究所技術報告

第 51 号

2007

Table 3-2 Calibrated values of SF6 Working Standards.

㪫㪸㫅㫂㩷㪥㫆㪅
㪚㪧㪙㪊㪇㪌㪌㪈
㪚㪧㪙㪊㪇㪌㪌㪉
㪚㪧㪙㪊㪇㪌㪌㪍
㪚㪧㪙㪊㪇㪌㪌㪌
㪚㪧㪙㪈㪎㪈㪋㪐
㪚㪧㪙㪉㪏㪈㪇㪊
㪚㪧㪙㪈㪌㪎㪇㪎
㪚㪧㪙㪉㪏㪌㪋㪉

㪪㪼㫉㫀㪼㫊
㪘
㪘
㪘
㪘
㪙
㪙
㪙
㪙

㫇㫇㫋
㪤㪼㪻㫀㪸㩷㪾㪸㫊㪈㪅㪇㪈㫧㪇㪅㪇㪈㩿㪈㪅㪇㪇㪇㪀
㪥㪉㪉㪅㪋㪐㫧㪇㪅㪇㪊㩿㪈㪇㪅㪇㪎㪀
㪥㪉㪊㪅㪐㪏㫧㪇㪅㪇㪋㩿㪎㪅㪈㪋㪈㪀
㪥㪉㪍㪅㪇㪇㫧㪇㪅㪇㪋㩿㪊㪅㪇㪊㪉㪀
㪥㪉㪂㪦㪉㪋㪅㪇㪈㫧㪇㪅㪇㪉㩿㪊㪅㪐㪐㪏㪀
㪥㪉㪉㪅㪋㪐㫧㪇㪅㪇㪉㩿㪉㪅㪌㪇㪈㪀
㪥㪉㪎㪅㪇㪉㫧㪇㪅㪇㪊㩿㪍㪅㪐㪐㪐㪀
㪥㪉㪇㪅㪐㪐㪐㫧㪇㪅㪇㪇㪈 㩿㪇㪅㪐㪐㪐㪈㪀㪥㪉㪊㪄㪉㪄㪉㪅㩷 䊪䊷䉨䊮䉫䉴䉺䊮䉻䊷䊄䉧䉴ᬌቯ୯䈱䊝䊆䉺䊷㩷 Ớᐲᄌൻࠍ↢ߓࠆᮡḰࠟࠬߪ߽ߪ߿ᮡḰࠟࠬߣߪ޿߃ߕ‫⃻ޔ‬႐⹜ᢱߦኻߒߡ↪޿ࠆߎߣ߇޽ߞߡߪߥࠄߥ޿‫ޕ‬ߘߎߢ‫ޔ‬ᚒ‫ߪޘ‬૞⵾ߒߚࡢ࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬߦߟ޿ߡߪ‫⃻ࠍࠇߘޔ‬႐ߢ૶↪ߔࠆߚ߼ߦ‫ޔ‬૞ᚑᓟ᷹ቯ૞
ᬺ߇ਇน⢻ߥ႐วࠍ㒰޿ߡ᦬ߦ㧞࿁ߩ㗫ᐲߢ㧝ᰴᮡḰࠟࠬߦኻߒߡᬌቯ୯ࠍ⚂㧞㧜ࡩ᦬㑆ࡕ࠾࠲࡯ߒ‫ޔ‬SF6 ߩỚᐲᄌൻ߇ߥ޿߆ࠍ⏕⹺ߒߡ޿ࠆ(Figure 3-2, Figure 3-3)‫ޕ‬

7

CPB30551
CPB30552
CPB30556
CPB30555

Calibrated SF (ppt)

6

6

5
4
3
2
1
0
Apr., 2006

Aug., 2006

Dec., 2006 Apr., 2006
Time

Aug., 2007

Dec., 2007

Figure 3-2 Change in concentration of SF6 in MRI Secondary Standard gases (A series).

8

CPB17149
CPB28103
CPB15707
CPB28542

6

6

Calibrated SF (ppt)

7

5
4
3
2
1

0
Apr., 2006

Aug., 2006

Dec., 2006 Apr., 2007
Time

Aug., 2007

Dec., 2007

Figure 3-3 Change in concentration of SF6 in MRI Secondary Standard gases (B series).
− 20 −

気象研究所技術報告

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2007㪊㪄㪉㪄㪊㪅㩷 䊪䊷䉨䊮䉫䉴䉺䊮䉻䊷䊄䉧䉴䈱⃻႐䈪䈱૶↪㩷 ᚒ‫ߪޘ‬ᶏᵗ᷹ⷰ╬‫ޔ‬SF6 ߩ⃻႐ߢߩ᷹ቯߦ㓙ߒߡߪዋߥߊߣ߽Ớᐲߩ⇣ߥࠆ 4 ᧄߩࡢ࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟ
ࠬࠍ↪޿ߡ޿ࠆ‫ޕ‬㧟ᧄએ਄ࠍ↪޿ࠆߎߣߢኒߥᬌ㊂✢߇૞ᚑߢ߈ࠆߩߺߢߥߊ‫ⷰޔ‬᷹ߩ⃻႐ߦ߅޿ߡ߽ߘࠇࠄࡢ
࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬߩỚᐲᄌൻߦߟ޿ߡߩ⋧੕ߦ࠴ࠚ࠶ࠢ߇น⢻ߣߥࠆ‫ޕ‬㪊㪄㪉㪄㪋㪅㩷 䊪䊷䉨䊮䉫䉴䉺䊮䉻䊷䊄䉧䉴䈱ᦨ⚳ᬌቯ㩷 ᷹ⷰ╬ߦ↪޿ߚࡢ࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬߪ⎇ⓥቶߦᜬߜᏫߞߚᓟ‫ߦߜ⋥ޔ‬㧝ᰴᮡḰࠟࠬߦࠃߞߡౣ߮ᬌቯ
૞ᬺࠍⴕ޿‫ޔ‬Ớᐲᄌൻߩ࠴ࠚ࠶ࠢࠍⴕ߁‫ޕ‬㪊㪄㪉㪄㪌㪅㩷 ⃻႐䊂䊷䉺䈱ᮡḰൻ㩷 ⃻႐⹜ᢱߩỚᐲߪ‫ⷰޔ‬᷹ᓟߩ࠴ࠚ࠶ࠢࠍࡄࠬߒߚࡢ࡯ࠠࡦࠣࠬ࠲ࡦ࠳࡯࠼ࠟࠬߩߺߦࠃߞߡ૞ᚑߐࠇߚᬌ㊂✢ࠍ↪޿ߡ‫ޔ‬᳿ቯߐࠇࠆߴ߈ߢ޽ࠆ‫ߢߎߎޕ‬᳿߼ࠄࠇߚỚᐲߪ‫ޔ‬MRI SF6 Calibration Scale ၮḰߩỚᐲߣ⸒߁ߎ
ߣߦߥࠆ‫ޕ‬㪊㪄㪊㪅㩷 ᬌ㊂✢㩷 ಽᨆߐࠇߚ⚿ᨐߣߒߡឬ߆ࠇࠆࠣࡠࡑ࠻ࠣ࡜ࡓ߆ࠄࠗࡦ࠹ࠣ࡟࡯࠲ߦࠃࠅ⸘▚ߐࠇࠆࡇ࡯ࠢ㕙Ⓧߪ޽ߊ߹ߢ
߽ಽᨆ⹜ᢱਛߦ฽߹ࠇࠆ SF6 ߩో㊂㧔mol ᢙ㧕ߦኻߔࠆ⋧ኻ୯ߢ޽ࠆ‫⹜ߩߎޕ‬ᢱߦߟ޿ߡߩࡇ࡯ࠢ㕙Ⓧࠍ molᢙߦ឵▚ߔࠆߚ߼ߦߪ‫ޔ‬Ớᐲᣢ⍮ߩ‛⾰‫ߜࠊߥߔޔ‬ᮡḰࠟࠬࠍቯኈߒߡ᷹ቯߒ‫ޔ‬᭽‫ ߥޘ‬SF6 ߩ mol ᢙߣ㕙Ⓧ୯ߣߩ㑐ଥ߆ࠄᬌ㊂✢ࠍ૞ᚑߔࠆߎߣ߇ᔅⷐߣߥࠆ‫ޕ‬ ಽᨆࠪࠬ࠹ࡓߦߪᄢዊ㧞ߟߩࠟࠬቯኈ▤߇⸳ߌࠄࠇߡ߅ࠅ‫߽߆ߒޔ‬ቯኈߒߚᮡḰࠟࠬࠍⶄᢙ࿁ಽ࠻࡜࠶ࡊߔࠆ
ߎߣ߇น⢻ߥߩߢ‫ޔ‬੐ታ਄ߪ㧝ᧄߩᮡḰࠟࠬ߇ሽ࿷ߔࠇ߫ᬌ㊂✢ߩ૞ᚑߪน⢻ߣߥࠆ‫ޔߒ߆ߒޕ‬೨▵ߢ߽ㅀߴߡ
߈ߚࠃ߁ߦ‫ⷰ߃ߣߚޔ‬᷹ਛߢ޽ߞߡ߽ࡏࡦࡌౝߢ SF6 ߩỚᐲ߆ᄌൻߒߥ޿ߣ޿߁଻⸽ߪߥ޿ߩߢ‫ⶄޔ‬ᢙᧄߩᮡḰࠟࠬߢ⋧੕ߦ࠴ࠚ࠶ࠢߒߥ߇ࠄᬌ㊂✢ࠍ૞ᚑߔࠆߎߣ߇ᦸ߹ߒ޿‫ޔߦࠄߐޕ‬ฦᮡḰࠟࠬߦߟ޿ߡ⇣ߥࠆ㧞ߟએ
਄ߩኈ㊂ߢ᷹ቯࠍⴕ߃߫ฦὐߦߟ޿ߡ߽࠴ࠚ࠶ࠢߢ߈ࠆ‫ޔߚ߹ޕ‬SF6 ߩᬌ㊂✢ߪᔅߕߒ߽⋥✢ᕈ߇㜞޿ߣߪ㒢ࠄߥ޿ߩߢࠃࠅᄙߊߩಽᨆὐࠍᜬߞߚᬌ㊂✢ࠍ૞ᚑߔࠆߎߣߢಽᨆ୯߳ߩା㗬ᕈߪ㜞߹ࠆ߽ߩߣ⠨߃ࠆ‫ޕ‬

1

6

SF (fmol)0.8[ZT
[ Z Z T

0.6
0.4
0.2
0
0

2000

4000
6000
Peak Area

8000

10000

Figure 3-4(a) Linear and quadratic calibration curves for SF6 calibrated by least squares method (SF6 < 1fmol).

− 21 −

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2007

 Figure 3-4-a ෸߮ Figure 3-4-b ߦߪ SF6 ߩᮮゲߦࡇ࡯ࠢ㕙Ⓧ‫❑ޔ‬ゲߦ SF6 ߩ mol ᢙࠍߣߞߚᬌ㊂✢ߩ଀ࠍ␜ߔ‫ޕ‬Figure 3-4-b ߪ Figure 3-4-a ߩ SF6 ߩ mol ㊂߇ᄙ޿஥ߦ᜛ᄢߒߚ߽ߩߢ޽ࠆ‫ޕ‬Figure 3-4-a ߦߟ޿ߡ‫ޔ‬㧝ᰴ෸߮㧞ᰴߩ࿁Ꮻࠍⴕߞߚߣߎࠈ޿ߕࠇ߽㜞޿⋧㑐ଥᢙࠍᜬߞߡ߅ࠅ߶߷⋥✢ߣߒߡ࿁Ꮻߢ߈ࠆߎߣ߇␜ߐࠇ
ߚ‫ޔߒ߆ߒޕ‬CFCs ߩᬌ㊂✢߇㧞ᰴ㑐ᢙߢࡈࠖ࠶࠻ߔࠆߎߣ߇ᄙߊߩ⎇ⓥ⠪ߦࠃߞߡႎ๔ߐࠇߡ޿ࠆࠃ߁ߦ‫ޔ‬
Figure 3-4-b ߦ߅޿ߡߪ SF6 ߩ mol ㊂ࠍჇ߿ߒߡ޿ߊߣᬌ㊂✢ߩ⋥✢ᕈ߇ᄬࠊࠇ‫ޔ‬㧞ᰴ㑐ᢙߦࠃࠆ࿁Ꮻ߇ᔅⷐ
ߣߥࠆ‫ޕ‬

4[ZT
[ Z Z T

3.5

2.5
2

6

SF (fmol)

3

1.5
1
0.5
0
0

5000

10000

15000 20000
Peak Area

25000

Figure 3-4(b) Same as Figure 3-4(a), but SF6 < 4fmol.

− 22 −

30000

35000

気象研究所技術報告

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2007

㩷

4.

分析システムの性能と観測例㩷㪋㪄㪈 㪅 㩷 ಽ ᨆ 䉲 䉴䊁 䊛䈱ᕈ ⢻ 㩷㪋㪄㪈 㪄㪈㪅 㩷 ➅ 䉍㄰ 䈚ಽ ᨆ ♖ ᐲ 㩷 Table 4-1 ߦߪᄢ᳇Ớᐲ࡟ࡌ࡞ߩᮡḰࠟࠬ(CPB-30555)ࠍ㧝ᰴᮡḰࠟࠬߢ 10 ࿁᷹ቯߒߚߣ߈ߩ SF6 ߩ᷹ቯ୯‫ޔ‬ᐔဋ୯߅ࠃ߮ᮡḰ஍Ꮕࠍ␜ߔ‫ޕ‬10 ࿁ߩ➅ࠅ㄰ߒಽᨆߦࠃࠆ➅ࠅ㄰ߒ♖ᐲߪᐔဋ୯ 6.00ppt ߦኻߒߡߢ 0.31%㧔㧝
ǻ㧕ߢ޽ߞߚ‫ᦨޕ‬ㄭߩᄢ᳇ߦ߅ߌࠆ SF6 ỚᐲߩჇടㅦᐲߪ‫ޔ‬ᐕߦ߅ࠃߘ㧡%ߢ޽ࠆ߆ࠄ‫ߩߘޔ‬ᄌൻࠍᬌ಴ߔࠆߩ
ߦߪలಽߥಽᨆ♖ᐲࠍߎߩࠪࠬ࠹ࡓߪ᦭ߒߡ޿ࠆߣ޿߃ࠃ߁‫ޕ‬
 Table 4-2 ߦߪࠃࠅỚᐲߩૐ޿ᮡḰࠟࠬ(CPB-30551)ߩ➅ࠅ㄰ߒ᷹ቯߩ⚿ᨐࠍ␜ߔ‫ߩߎ߅ߥޕ‬ᮡḰࠟࠬߩಽᨆ
ߢᓧࠄࠇࠆࡇ࡯ࠢ㕙Ⓧߪᶏ᳓Ớᐲߦߒߡ‫ ⚂ޔ‬0.4fmol/kg ߦ⋧ᒰߔࠆ߽ߩߢ޽ࠆ‫ࠅ➅ޕ‬㄰ߒ♖ᐲߪవߦㅀߴߚᄢ
᳇࡟ࡌ࡞ߩ߽ߩߩ᷹ቯߦᲧߴࠇ߫߿߿⪭ߜࠆ㧔1ppt ߩỚᐲߦኻߒߡ 1.5%㧕߇‫ޔ‬ᕆỗߦߘߩỚᐲࠍᄢ᳇ਛߢჇട
ߐߖߡ߈ߚ SF6 ߩᄌൻࠍ⺰ߕࠆ਄ߢߪ߿ߪࠅలಽߥ♖ᐲߢ޽ࠆߣ޿߃ࠆ‫ޕ‬ ᶏ᳓ਛ SF6 ߩಽᨆߦߟ޿ߡߩࠪࠬ࠹ࡓߩಽᨆᕈ⢻ࠍ⹏ଔߔࠆߚ߼ߦ‫ޔ‬㧝ᧄߩ࠾ࠬࠠࡦណ᳓ེ߆ࠄ㧞ᧄߩ⹜ᢱ
↉ߦᶏ᳓ࠍಽขߒ‫ߩࠇߙࠇߘޔ‬᷹ቯࠍⴕߞߚ‫ޕ‬᳇⽎ᐡಒ㘑ਣ RF-0610 ⥶ᶏߦ߅ߌࠆߘࠇࠄߩᐔဋ୯ߣᏅࠍ Table
4-3 ߦ␜ߔ‫ޕ‬ߎߎߢߪ‫ޔ‬੝⴫ጀߦ߅޿ߡ㧝ᧄߩ࠾ࠬࠠࡦណ᳓ེ߆ࠄㅪ⛯ߒߡ㧞ᧄߩ⹜ᢱ↉ߦಽขߒߚᶏ᳓ߩಽᨆ⚿ᨐߪ⋧ኻ⺋
Ꮕ 0.8r0.5㧑ߢ‫⎇ᧄޔ‬ⓥ߇⋡ᮡߣߒߚ 1%એਅߩ♖ᐲࠍ㆐ᚑߢ߈ߚ‫ޕ‬

Table 4-1 Repeatability of atmospheric SF6level gas standard analysis.

㪚㪧㪙㪊㪇㪌㪌㪌
㪈
㪉
㪊
㪋
㪌
㪍
㪎
㪏
㪐
㪈㪇
㪘㫍㪼㫉㪸㪾㪼㪪㫋㪻㪅㩿㩼㪀Table 4-2 Repeatability of low-level gas SF6
standard analysis.

㪪㪝㪍㩷㩿㫇㫇㫋㪀
㪍㪅㪇㪇
㪌㪅㪐㪏
㪍㪅㪇㪉
㪌㪅㪐㪎
㪌㪅㪐㪐
㪍㪅㪇㪇
㪍㪅㪇㪇
㪍㪅㪇㪉
㪍㪅㪇㪊
㪍㪅㪇㪇
㪍㪅㪇㪇
㪇㪅㪇㪉
㪇㪅㪊㪈

㪪㪝㪍㩷㩿㫇㫇㫋㪀
㪈㪅㪇㪈
㪈㪅㪇㪊
㪈㪅㪇㪋
㪈㪅㪇㪉
㪈㪅㪇㪇
㪈㪅㪇㪇
㪈㪅㪇㪇
㪈㪅㪇㪇
㪈㪅㪇㪈
㪈㪅㪇㪇
㪈㪅㪇㪈
㪇㪅㪇㪈
㪈㪅㪌

㪚㪧㪙㪊㪇㪌㪌㪈
㪈
㪉
㪊
㪋
㪌
㪍
㪎
㪏
㪐
㪈㪇
㪘㫍㪼㫉㪸㪾㪼㪪㫋㪻㪅㩿㩼㪀Table 4-3 Duplicate analysis of SF6 in seawater samples obtained from a Niskin Bottle.

㪊㪊㫦㪌㪐㪥
㪊㪇㫦㪇㪈㪥
㪈㪐㫦㪌㪐㪥
㪈㪇㫦㪇㪇㪥
㪌㫦㪇㪇㪥㪧㫉㪼㫊㫊㫌㫉㪼
㪪㪝㪍㩿㪻㪙㪀㩿㪽㫄㫆㫃㪆㫂㪾㪀
㪐㪅㪋
㪈㪅㪇㪋㪉
㪈㪇㪅㪌
㪇㪅㪐㪉㪐
㪈㪇㪅㪍
㪇㪅㪏㪌㪊
㪈㪈㪅㪋
㪇㪅㪏㪋㪋
㪈㪇㪅㪌
㪇㪅㪏㪌㪉

㪈㪅㪇㪋㪌
㪇㪅㪐㪊㪋
㪇㪅㪏㪋㪈
㪇㪅㪏㪊㪐
㪇㪅㪏㪋㪉

㪛㫀㪽㪽㪼㫉㪼㫅㪺㪼 㪧㫉㪼㫊㫊㫌㫉㪼㪪㪝㪍㩿㪽㫄㫆㫃㪆㫂㪾㪀㩿㪻㪙㪀㩿㪽㫄㫆㫃㪆㫂㪾㪀
㪇㪅㪇㪇㪊
㪄
㪄
㪇㪅㪇㪇㪌
㪉㪇㪉㪊㪅㪈
㪥㪛㪇㪅㪇㪈㪉㪉㪇㪉㪈㪅㪊
㪥㪛㪇㪅㪇㪇㪌㪉㪇㪉㪈㪅㪋
㪥㪛㪇㪅㪇㪈㪇㪉㪇㪉㪈㪅㪋
㪥㪛− 23 −

㪄
㪥㪛
㪥㪛
㪥㪛
㪥㪛

㪛㫀㪽㪽㪼㫉㪼㫅㪺㪼㩿㪽㫄㫆㫃㪆㫂㪾㪀
㪄
㪄
㪄
㪄
㪄

気象研究所技術報告

第 51 号

2007㪋㪄㪈 㪄㪉㪅 㩷 ᬌ ಴ 㒢 ⇇ 㩷 ࡉ࡜ࡦࠢࠟࠬߩ➅ࠅ㄰ߒ᷹ቯߦࠃߞߡᓧࠄࠇߚᧄࠪࠬ࠹ࡓߩᬌ಴㒢⇇ߪᶏ᳓⹜ᢱߩ⹜ᢱಽ ᨆ ኈ ㊂ 㧔 300cm3㧕 ߆ ࠄ 0.015fmol/kg ߣ ⸘ ▚ ߐ ࠇ ߚ ‫ ޕ‬᳓ ᷷ ߣ Ⴎ ಽ ࠍ ߘ ࠇ ߙ ࠇ 20͠ ߣ 34.5
ߣ ઒ ቯ ߔ ࠆ ߣ ‫ ߪ ࠇ ߎޔ‬ᄢ ᳇ ਛ ߩ 0 . 0 8 p p t ߦ ⋧ ᒰ ߔ ࠆ ‫ޕ‬ᄢ ᳇ ߦ ߅ ߌ ࠆ S F 6 ߩ ᤨ 㑆 ᄌ ൻ ߆ ࠄ 1 9 6 0ᐕ ઍ ਛ 㗃 ߩ Ớ ᐲ ߣ ⸒ ߁ ߎ ߣ ߦ ߥ ࠅ ‫ ࠇ ߘ ޔ‬એ 㒠 ߩ ⷗ ߆ ߌ ߩ ᳓ ႙ ᐕ 㦂 ߦ ߟ ޿ ߡ CFCs ╬ ߣ Ყ セ น⢻ߦߥߞߚߎߣࠍᗧ๧ߔࠆ‫ޕ‬㪋㪄㪉㪅㩷 ⷰ ᷹ ଀ 㩷㪋㪄㪉 㪄㪈㪅 㩷 ᄢ ᳇ ⹜ ᢱ ಽ ᨆ 㩷 Figure 4-1 ߦߪ‫ޔ‬RF-0610 ⥶ᶏਛߦࠟ࡜ࠬᵈ኿╴ߢᓧߚᄢ᳇⹜ᢱߩಽᨆ⚿ᨐࠍ✲ᐲߦኻߒߡࡊࡠ࠶࠻ߒߚ‫ߎޕ‬

Atmospheric SF6 mixing ratio (ppt)ߎߢߪ‫᦭ޔ‬ᗧߥ✲ᐲᄌൻࠍ⷗ߡขࠆߎߣߪߢ߈ߥ޿‫⹜ోޕ‬ᢱߩಽᨆ୯ߩᐔဋߪ 5.94+0.05ppt ߢ޽ߞߚ‫ޕ‬

6
5.98
5.96
5.94
5.92
5.9
0

5

10

15
20
Latitude (N)

25

30

35

Figure 4-1 Latitudinal distribution of atmospheric SF6 obtained during RF-0610.

㪋㪄㪉 㪄㪉㪅 㩷 ᶏ ᳓ ⹜ ᢱ ಽ ᨆ 㩷 Ta b l e 4 - 3 ߦ ߪ R F - 0 6 1 0 ⥶ ᶏ ᤨ ߦ ᳓ ᷓ 2 0 0 0 m ઃ ㄭ ߢ ᓧ ߚ 㧞 ᧄ ߩ ᶏ ᳓ ⹜ ᢱ ߦ ߟ ޿ ߡ ߩ ᷹ ቯ⚿ ᨐ ࠍ ␜ ߒ ߚ ‫ ߩ ߎޕ‬᳓ ᷓ ߦ ߅ ޿ ߡ ߪ S F 6 ࠃ ࠅ ߽ ᣧ ޿ ᤨ ᦼ ߦ ૶ ↪ ߩ ᆎ ߹ ߞ ߚ C F C s Ớ ᐲ ߪ ᬌ ಴㒢 ⇇ 㧔 0.010pmol/kg㧕 એ ਅ ߢ ޽ ߞ ߚ ߇ ‫ ޔ‬SF6 ߩ Ớ ᐲ ߽ ห ᭽ ߦ ᬌ ಴ 㒢 ⇇ 㧔 0.020fmol/kg㧕 એ ਅߢ޽ࠅ‫ޔ‬ᶏ᳓⹜ᢱࠍᳪᨴߔࠆߎߣߥߊណ᳓‫ޔ‬᷹ቯߔࠆߎߣ߇ߢ߈ߚ‫ޕ‬
 Figure 4-2 ߦ ߪ ‫ ޔ‬ಒ 㘑 ਣ RF-0610 ⥶ ᶏ ߦ ߅ ޿ ߡ ‫ ޔ‬2006 ᐕ 㧝 ᦬ ߦ ᧲ ⚻ 136 ᐲ 59.3 ಽ ‫ ޔ‬ർ
✲ 3 0 ᐲ 0 1 . 0 ಽ ߦ ߡ ⷰ ᷹ ߒ ߚ ࡐ ࠹ ࡦ ࠪ ࡖ ࡞ ᷷ ᐲ㧔 T h e t a 㧕‫ޔ‬Ⴎ ಽ㧔 S a l i n i t y 㧕‫ޔ‬S F 6 Ớ ᐲ ‫ޔ‬C F C - 1 2Ớ ᐲ ‫ ޔ‬SF6 ߣ CFC-12 Ớ ᐲ ߆ ࠄ ᓧ ࠄ ࠇ ࠆ ⷗ ߆ ߌ ߩ SF6 Age ߣ CFC-12 Age ෸ ߮ ⷗ ߆ ߌ ߩ ㉄ ⚛
ᶖ ⾌ ㊂ 㧔 AOU㧕 ߩ ㋦ ⋥ ಽ Ꮣ ࠍ ␜ ߔ ‫ ޕ‬SF6 Ớ ᐲ ߪ ੝ ⴫ ጀ ߦ ᭂ ᄢ ࠍ ᜬ ߜ ߘ ࠇ એ ᷓ ߢ ߪ ᷓ ߊ ߥ ࠆ ߣߣ ߽ ߦ ᷫ ዋ ߒ ߚ ‫ ޕ‬SF6 ෸ ߮ CFC-12 Ớ ᐲ ߩ ㋦ ⋥ ಽ Ꮣ ߪ ‫ ߩ ߘ ޔ‬ᄢ ᳇ ߩ ጁ ᱧ ߣ ᶏ ᳓ ߳ ߩ ṁ ⸃ ᐲ ߩ᷷ᐲଐሽᕈߩ㆑޿ࠍ෻ᤋߒߡᄢ߈ߊ⇣ߥߞߡ޿ߚ߇ߘࠇߙࠇ߆ࠄ⷗Ⓧߞߚ࠻࡟࡯ࠨ࡯ᐕ㦂ߪ⦟ߊ৻⥌ߒߚ‫ޔߪߡ޿ߟߦ⚦⹦ߩߎޕ‬೎ߦ⼏⺰ߒߡ޿ߊ੍ቯߢ޽ࠆ‫ޕ‬− 24 −

気象研究所技術報告

第 51 号

2007

Theta
0

0

5

10

15

Salinity
20

25

30

34.1 34.2 34.3 34.4 34.5 34.6 34.7 34.8 34.9
0500
Pressure (dB)Pressure (dB)

500

1000

1000

1500

1500

(a)

2000

(b)

2000

SF 6
0

0

0.2

0.4

0.6

0.8

1

1.2

0

500

0

0.5

1

2

2.5

Pressure (dB)Pressure (dB)

1000

1500

1500

(c)

2000

(d)

2000

SF6, CFC-12 Age
0

10

20

30

AOU
40

50

-50
0

60

0

50

100

150

200

250

300

500

Pressure (dB)Pressure (dB)

500

1000

1000

1500

1500
SF6 Age
CFC-12 Age
2000

1.5

500

1000

-10
0

CFC-12

(e)

2000

(f)

Figure 4-2 Vertical distribution of (a) potential temperature(˚C), (b) salinity, (c) SF6 concentration (fmol/kg), (d) CFC-12 concentration(pmol/kg), SF6 and CFC-12 tracer age (yr) and AOU (μmol/kg) at 137˚E, 30˚N.

− 25 −

気象研究所技術報告

第 51 号

2007㪋㪄 㪊 ᦨ ᓟ 䈮㩷 ᄢ᳇߅ࠃ߮ᶏ᳓ਛߩ SF6 ࠍ㜞♖ᐲߦ᷹ቯߢ߈ࠆⵝ⟎ࠍ㐿⊒ߒߚ‫ࠅࠃޔߚ߹ޕ‬ૐỚᐲߩᶏ᳓ਛ SF6 ߩ᷹ቯߦᔅ
ⷐߥណ᳓↉ࠍ૞⵾ߒߚ‫ߡ޿↪ࠍ⟎ⵝߩߎޕ‬੩ㇺ⼏ቯᦠߦߡⷙ೙ኻ⽎‛⾰ߣߐࠇߚ SF6 ߩᄢ᳇Ớᐲࠍࡕ࠾࠲࡯ߔ
ࠆߣߣ߽ߦ‫ޔ‬ᶏᵗߦ߅޿ߡߪᶏ᳓ᵹേߩൻቇ࠻࡟࡯ࠨ࡯ߣߒߡߎࠇ߆ࠄ߽᷹ቯࠍⴕߞߡ޿ߊ੍ቯߢ޽ࠆ‫ޕ‬ ⵝ⟎ߩ㐿⊒ߣߣ߽ߦ‫ޔ‬SF6 ᮡḰࠟࠬ㧔MRI SF6 Calibration Scale㧕ࠍ⏕┙ߔߴߊታ㛎ࠍⴕߞߡ߈ߚ⚿ᨐ‫ޔ‬቟ቯߥᮡḰࠟࠬࠍ᷹ⷰߩ⃻႐ߢ૶↪ߢ߈ࠆ૕೙ࠍ⏕┙ߒߚ‫⃻ޕ‬࿷ߪ߹ߛᚒ‫ ߣ࡞࡯ࠤࠬߩޘ‬SF6 ࠍ᷹ቯߒߡ޿ࠆઁ
ߩᯏ㑐ߩࠬࠤ࡯࡞ߣߩ⋧੕Ყセߪⴕߞߡ޿ߥ޿߇‫੹ޔ‬ᓟ‫⋧ޔ‬੕Ყセࠍታᣉߒߚ޿ߣ⠨߃ߡ޿ࠆ‫ޕ‬ ᦨೋߦ߽ㅀߴߚ߇‫ ߪ⺰ᧄޔ‬SF6 ߿ઁߩ⿥ᓸ㊂᳇૕ᚑಽߩಽᨆ⠪ߩߚ߼ߩࠟࠗ࠼ߣߥࠆߎߣࠍ⋡ᜰߒߡ૞ᚑߒ
ߚ߽ߩߢ޽ࠆߚ߼‫⎇ޔ‬ⓥ࡮ᛛⴚߩႎ๔ߣߒߡߪ⧯ᐓਇㆡᒰߥ⴫⃻ࠍ↪޿ߡ޿ࠆ߆߽ߒࠇߥ޿߇߅⸵ߒ޿ߚߛ߈ߚ޿‫ޕ‬ ᷹ⷰߩ⃻႐ߢಽᨆࠍᜂ߁ੱ‫ߩޘ‬ᚻߦࠃߞߡᧄ⺰߇ୃᱜߐࠇ‫ߡߒߣ࠼ࠗࠟ޿ࠃࠅࠃޔ‬㗂ߌࠇ߫ᐘ޿ߢ޽ࠆ‫ޕ‬− 26 −

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Tanhua, T., K. A. Olsson and E. Fogelqvist, A first study of SF6 as a transient tracer in the Southern Ocean.

Deep-Sea Res., 51, 2683-2699 (2004)
Upstill-Goddard, R. C., A. J. Watson, P. S. Liss and M. I. Liddicoat, Gas transfer velocities in lakes
measured with SF6. Tellus, 42B, 364-377 (1990)
Upstill-Goddard, R. C., A. J. Watson, J. Wood and M. I. Liddicoat, Sulphur hexafluoride and helium-3 assea-water tracers: deployment techniques and continuous underway analysis for sulphur hexafluoride.

Anal. Chim. Acta, 249, 555-562 (1991)
Walker, S. J., R. F. Weiss and P. K. Salameh, Reconstructed histories of the annual mean atmospheric mole
fractions for the halocarbons CFC-11, CFC-12, CFC-113, and carbon tetrachloride. J. Geophys. Res.
105, 14285-14296 (2000)
Wanninkhof, R., J. Ledwell and W. S. Broecker, Gas exchange-wind speed relation measured with sulfur
hexafluoride on a lake. Science, 227, 1224-1226 (1985)
Wanninkhof, R., J. R. Ledwell and A. J. Watson, Analysis of sulfur hexafluoride in seawater. J. Geophys.

Res., 96, 8733-8740 (1991)
Watanabe, Y. W., A. Shimamoto and T. Ono, Comparison of time-dependent tracer ages in the western
North Pacific: oceanic background levels of SF6, CFC-11, CFC-12 and CFC-113. J. Oceanogr., 59,
719-729 (2003)
Watson, A. J. and M. I. Liddicoat, Recent history of atmospheric trace gas concentrations deduced frommeasurements in the deep sea: application to sulphur hexafluoride and carbon tetrachloride. Atmos.

Environ., 19, 1477-1484 (1985)
Watson, A. J., R. C. Upstill-Goddard and P. S. Liss, Air-sea gas exchange in rough and stormy seasmeasured by a dual-tracer technique. Nature, 349, 145-147 (1991b)− 28 −

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Watson, A. J., J. R. Ledwell and S. C. Sutherland, The Santa Monica Basin Tracer Experiment: comparisonof release methods and performance of perfluorodecalin and sulfur hexafluoride. J. Geophys. Res., 96,
8719-8725 (1991)− 29 −

᳇⽎⎇ⓥᚲᛛⴚႎ๔৻ⷩ⴫

╙㧝ภ ࡃ࠶ࠢࠣ࡜࠙ࡦ࠼ᄢ᳇ᳪᨴߩ᷹ቯᴺߩ㐿⊒㧔࿾⃿ⷙᮨᄢ᳇ᳪᨴ․೎⎇ⓥ⃰㧘1978㧕
Development of Monitoring Techniques for Global Background Air Pollution. (MRI Special Research Group on Global
Atmospheric Pollution, 1978)╙㧞ภ ਥⷐᵴἫጊߩ࿾Ზᄌേਗ߮ߦ࿾ᾲ⁁ᘒߩ⺞ᩏ⎇ⓥ㧔࿾㔡Ἣጊ⎇ⓥㇱ㧘1979㧕
Investigation of Ground Movement and Geothermal State of Main Active Volcanoes in Japan. (Seismology andVolcanology Research Division, 1979)╙㧟ภ ╳ᵄ⎇ⓥቇ࿦ㇺᏒߦᣂ⸳ߐࠇߚ᳇⽎᷹ⷰ↪㋕Ⴁᣉ⸳㧔⧎ᚱ㦖↵࡮⮮⼱ᓼਯഥ࡮઻㊁ ⊓࡮㝼ᵤ ඳ㧘1979㧕
On the Meteorological Tower and Its Observational System at Tsukuba Science City. (T. Hanafusa, T. Fujitani, N. Banno,and H. Uozu, 1979)╙㧠ภ ᶏᐩ࿾㔡Ᏹᤨ᷹ⷰࠪࠬ࠹ࡓߩ㐿⊒㧔࿾㔡Ἣጊ⎇ⓥㇱ㧘1980㧕
Permanent Ocean㧙Bottom Seismograph Observation System. (Seismology and Volcanology Research Division, 1980)╙㧡ภ ᧄᎺධᣇᶏၞ᳓᷷࿑㧙400m㧔෶ߪ 500m㧕ᷓߣ 1,000m ᷓ㧙㧔1934㧙1943 ᐕ෸߮ 1954㧙1980 ᐕ㧕㧔ᶏᵗ⎇ⓥㇱ㧘
1981㧕
Horizontal Distribution of Temperature in 400m (or 500m) and 1,000m Depth in Sea South of Honshu, Japan and Western㧙North Pacific Ocean from 1934 to 1943 and from 1954 to 1980. (Oceanographical Research Division, 1981)╙㧢ภ ᚑጀ࿤ࠝ࠱ࡦߩ⎕უߦߟߥ߇ࠆᄢ᳇ᚑಽ෸߮⚡ᄖᣣ኿ߩ᷹ⷰ㧔㜞ጀ‛ℂ⎇ⓥㇱ㧘1982㧕
Observations of the Atmospheric Constituents Related to the Stratospheric ozon Depletion and the Ultraviolet Radiation.
(Upper Atmosphere Physics Research Division, 1982)╙㧣ภ 83 ဳᒝ㔡⸘ߩ㐿⊒㧔࿾㔡Ἣጊ⎇ⓥㇱ㧘1983㧕
Strong㧙Motion Seismograph Model 83 for the Japan Meteorological Agency Network. (Seismology and Volcanology
Research Division, 1983)╙㧤ภ ᄢ᳇ਛߦ߅ߌࠆ㔐ߩⲢ⸃⃻⽎ߦ㑐ߔࠆ⎇ⓥ㧔‛ℂ᳇⽎⎇ⓥㇱ㧘1984㧕

The Study of Melting of Snowflakes in the Atmosphere. (Physical Meteorology Research Division, 1984)╙㧥ภ ᓮ೨ፒධᣇᴒߦ߅ߌࠆᶏᐩ᳓࿶᷹ⷰ㧔࿾㔡Ἣጊ⎇ⓥㇱ࡮ᶏᵗ⎇ⓥㇱ㧘1984㧕
Bottom Pressure Observation South off Omaezaki, Central Honsyu. (Seismology and Volcanology Research Division andOceanographical Research Division, 1984)╙ 10 ภ ᣣᧄઃㄭߩૐ᳇࿶ߩ⛔⸘㧔੍ႎ⎇ⓥㇱ㧘1984㧕
Statistics on Cyclones around Japan. (Forecast Research Division, 1984)╙ 11 ภ ዪ࿾㘑ߣᄢ᳇ᳪᨴ⾰ߩャㅍߦ㑐ߔࠆ⎇ⓥ㧔ᔕ↪᳇⽎⎇ⓥㇱ㧘1984㧕
Observations and Numerical Experiments on Local Circulation and Medium㧙Range Transport of Air Pollutions.
(Applied Meteorology Research Division, 1984)╙ 12 ภ Ἣጊᵴേ⋙ⷞᚻᴺߦ㑐ߔࠆ⎇ⓥ㧔࿾㔡Ἣጊ⎇ⓥㇱ㧘1984㧕
Investigation on the Techniques for Volcanic Activity Surveillance. (Seismology and Volcanology Research Division,
1984)╙ 13 ภ ᳇⽎⎇ⓥᚲᄢ᳇ᄢᓴⅣࡕ࠺࡞㧙Σ㧔MRI࡮GCM㧙㸇㧕㧔੍ႎ⎇ⓥㇱ㧘1984㧕
A Description of the MRI Atmospheric General Circulation Model (The MRI࡮GCM㧙Σ). (Forecast Research Division,− 30 −

1984)╙ 14 ภ บ㘑ߩ᭴ㅧߩᄌൻߣ⒖േߦ㑐ߔࠆ⎇ⓥ㧙บ㘑 7916 ߩ৻↢㧙㧔บ㘑⎇ⓥㇱ㧘1985㧕
A Study on the Changes of the Three - Dimensional Structure and the Movement Speed of the Typhoon through its Life
Time. (Typhoon Research Division, 1985)╙ 15 ภ ᵄᶉផ▚ࡕ࠺࡞ MRI ߣ MRI㧙Τߩ⋧੕Ყセ⎇ⓥ㧙⸘▚⚿ᨐ࿑㓸㧙㧔ᶏᵗ᳇⽎⎇ⓥㇱ㧘1985㧕
An Intercomparison Study between the Wave Models MRI and MRI 㧙 Τ 㧙 A Compilation of Results 㧙(Oceanographical Research Division, 1985)╙ 16 ภ ࿾㔡੍⍮ߦ㑐ߔࠆታ㛎⊛෸߮ℂ⺰⊛⎇ⓥ㧔࿾㔡Ἣጊ⎇ⓥㇱ㧘1985㧕
Study on Earthquake Prediction by Geophysical Method. (Seismology and Volcanology Research Division, 1985)╙ 17 ภ ർඨ⃿࿾਄᦬ᐔဋ᳇᷷஍Ꮕ࿑㧔੍ႎ⎇ⓥㇱ㧘1986㧕
Maps of Monthly Mean Surface Temperature Anomalies over the Northern Hemisphere for 1891㧙1981. (Forecast
Research Division, 1986)╙ 18 ภ ਛጀᄢ᳇ߩ⎇ⓥ㧔㜞ጀ‛ℂ⎇ⓥㇱ࡮᳇⽎ⴡᤊ⎇ⓥㇱ࡮੍ႎ⎇ⓥㇱ࡮࿾⏛᳇᷹ⷰᚲ㧘1986㧕
Studies of the Middle Atmosphere. (Upper Atmosphere Physics Research Division, Meteorological Satellite Research
Division, Forecast Research Division, MRI and the Magnetic Observatory, 1986)╙ 19 ภ ࠼࠶ࡊ࡜࡯࡟࡯࠳ߦࠃࠆ᳇⽎࡮ᶏ⽎ߩ⎇ⓥ㧔᳇⽎ⴡᤊ⎇ⓥㇱ࡮บ㘑⎇ⓥㇱ࡮੍ႎ⎇ⓥㇱ࡮ᔕ↪᳇⽎⎇ⓥㇱ࡮ᶏᵗ⎇ⓥㇱ㧘1986㧕
Studies on Meteorological and Sea Surface Phenomena by Doppler Radar. (Meteorological Satellite Research Division,
Typhoon Research Division, Forecast Research Division, Applied Meteorology Research Division, and OceanographicalResearch Division, 1986)╙ 20 ภ ᳇⽎⎇ⓥᚲኻᵹ࿤ᄢ᳇ᄢᓴⅣࡕ࠺࡞㧔MRI࡮GCM㧙Σ㧕ߦࠃࠆ 12 ᐕ㑆ಽߩⓍಽ㧔੍ႎ⎇ⓥㇱ㧘1986㧕
Mean Statistics of the Tropospheric MRI࡮GCM㧙Σbased on 12㧙year Integration. (Forecast Research Division, 1986)╙ 21 ภ ቝቮ✢ਛ㑆ሶᒝᐲ 1983㧙1986㧔㜞ጀ‛ℂ⎇ⓥㇱ㧘1987㧕
Multi㧙Directional Cosmic Ray Meson Intensity 1983㧙1986. (Upper Atmosphere Physics Research Division, 1987)╙ 22 ภ 㕒ᱛ᳇⽎ⴡᤊ‫↹ޠࠅࠊ߹߭ޟ‬௝ߩྃἫྃᾍ࠺࡯࠲ߦၮߠߊྃἫᵴേߩ⸃ᨆߦ㑐ߔࠆ⎇ⓥ㧔࿾㔡Ἣጊ⎇ⓥㇱ㧘 1987㧕
Study on Analysis of Volcanic Eruptions based on Eruption Cloud Image Data obtained by the Geostationary
Meteorological satellite (GMS). (Seismology and Volcanology Research Division, 1987)╙ 23 ภ ࠝࡎ࡯࠷ࠢᶏᶏᵗ᳇୥࿑㧔◉ේศ㓶࡮྾┑ାⴕ㧘1988㧕
Marine Climatological Atlas of the sea of Okhotsk. (Y. Shinohara and N. Shikama, 1988)╙ 24 ภ ᶏᵗᄢᓴⅣࡕ࠺࡞ࠍ↪޿ߚ㘑ߩᔕജ⇣Ᏹߦኻߔࠆᄥᐔᵗߩᔕ╵ታ㛎㧔ᶏᵗ⎇ⓥㇱ㧘1989㧕
Response Experiment of Pacific Ocean to Anomalous Wind Stress with Ocean General Circulation Model.
(Oceanographical Research Division, 1989)╙ 25 ภ ᄥᐔᵗߦ߅ߌࠆᶏᵗ⻉ⷐ⚛ߩቄ▵ᐔဋಽᏓ㧔ᶏᵗ⎇ⓥㇱ㧘1989㧕
Seasonal Mean Distribution of Sea Properties in the Pacific. (Oceanographical Research Division, 1989)╙ 26 ภ ࿾㔡೨ళ⃻⽎ߩ࠺࡯࠲ࡌ࡯ࠬ㧔࿾㔡Ἣጊ⎇ⓥㇱ㧘1990㧕
Database of Earthquake Precursors. (Seismology and Volcanology Research Division, 1990)╙ 27 ภ ᴒ✽࿾ᣇߦ߅ߌࠆ᪢㔎ᦼߩ㒠᳓ࠪࠬ࠹ࡓߩ․ᕈ㧔บ㘑⎇ⓥㇱ㧘1991㧕
Characteristics of Precipitation Systems During the Baiu Season in the Okinawa Area. (Typhoon Research Division,
1991)− 31 −

╙ 28 ภ ᳇⽎⎇ⓥᚲ࡮੍ႎ⎇ⓥㇱߢ㐿⊒ߐࠇߚ㕖㕒᳓࿶ࡕ࠺࡞㧔ⁿᎹర⥝࡮ᢧ⮮๺㓶㧘1991㧕
Description of a Nonhydrostatic Model Developed at the Forecast Research Department of the MRI. (M. Ikawa and K.
Saito, 1991)╙ 29 ภ 㔕ߩ᡼኿ㆊ⒟ߦ㑐ߔࠆ✚ว⊛⎇ⓥ㧔᳇୥⎇ⓥㇱ࡮‛ℂ᳇⽎⎇ⓥㇱ࡮ᔕ↪᳇⽎⎇ⓥㇱ࡮᳇⽎ⴡᤊ࡮᷹ⷰࠪࠬ࠹ࡓ
⎇ⓥㇱ࡮บ㘑⎇ⓥㇱ㧘1992㧕
A Synthetic Study on Cloud㧙Radiation Processes. (Climate Research Department, Physical Meteorology Research
Department, Applied Meteorology Research Department, Meteorological Satellite and Observation System Research
Department, and Typhoon Research Department, 1992)╙ 30 ภ ᄢ᳇ߣᶏᵗ࡮࿾⴫ߣߩࠛࡀ࡞ࠡ࡯੤឵ㆊ⒟ߦ㑐ߔࠆ⎇ⓥ㧔ਃ਄ᱜ↵࡮㆙⮮᣽ብ࡮ᣂ㊁ ብ࡮ጊፒቁᴦ㧘1992㧕
Studies of Energy Exchange Processes between the Ocean㧙Ground Surface and Atmosphere. (M. Mikami, M. Endoh, H.
Niino, and K. Yamazaki, 1992)╙ 31 ภ 㒠᳓ᣣߩ಴⃻㗫ᐲ߆ࠄߺߚᣣᧄߩቄ▵ផ⒖㧙30 ᐕ㑆ߩᣣ㒠᳓㊂⾗ᢱߦၮߠߊ⛔⸘㧙㧔⑺ጊቁሶ㧘1993㧕
Seasonal Transition in Japan, as Revealed by Appearance Frequency of Precipitating-Days. 㧙Statistics of Daily
Precipitation Data During 30 Years㧙(T. Akiyama, 1993)╙ 32 ภ ⋥ਅဳ࿾㔡੍⍮ߦ㑐ߔࠆ᷹ⷰ⊛⎇ⓥ㧔࿾㔡Ἣጊ⎇ⓥㇱ㧘1994㧕
Observational Study on the Prediction of Disastrous Intraplate Earthquakes. (Seismology and Volcanology Research
Department, 1994)╙ 33 ภ ฦ⒳᳇⽎᷹ⷰᯏེߦࠃࠆᲧセ᷹ⷰ㧔᳇⽎ⴡᤊ࡮᷹ⷰࠪࠬ࠹ࡓ⎇ⓥㇱ㧘1994㧕
Intercomparisons of Meteorological Observation Instruments. (Meteorological Satellite and Observation System Research
Department, 1994)╙ 34 ภ ⎫㤛㉄ൻ‛ߩ㐳〒㔌ャㅍࡕ࠺࡞ߣ᧲ࠕࠫࠕ࿾ၞ߳ߩㆡ↪㧔ᔕ↪᳇⽎⎇ⓥㇱ㧘1995㧕
The Long㧙Range Transport Model of Sulfur Oxides and Its Application to the East Asian Region. (Applied Meteorology
Research Department, 1995)╙ 35 ภ ࠙ࠗࡦ࠼ࡊࡠࡈࠔࠗ࡜࡯ߦࠃࠆ᳇⽎ߩ᷹ⷰᴺߩ⎇ⓥ㧔᳇⽎ⴡᤊ࡮᷹ⷰࠪࠬ࠹ࡓ⎇ⓥㇱ㧘1995㧕
Studies on Wind Profiler Techniques for the Measurements of Winds. (Meteorological Satellite and Observation System
Research Department, 1995)╙ 36 ภ 㒠᳓࡮⪭ਅႲਛߩੱᎿ᡼኿ᕈᩭ⒳ߩಽᨆᴺ෸߮ߘߩ࿾⃿ൻቇ⊛⎇ⓥ㧔࿾⃿ൻቇ⎇ⓥㇱ㧘1996㧕
Geochemical Studies and Analytical Methods of Anthropogenic Radionuclides in Fallout Samples. (Geochemical
Research Department, 1996)╙ 37 ภ ᄢ᳇ߣᶏᵗߩ࿾⃿ൻቇ⊛⎇ⓥ㧔1995 ᐕ෸߮ 1996 ᐕ㧕㧔࿾⃿ൻቇ⎇ⓥㇱ㧘1998㧕
Geochemical Study of the Atmosphere and Ocean in 1995 and 1996. (Geochemical Research Department, 1998)╙ 38 ภ ㋦⋥㧞ᰴర㕖✢ᒻ໧㗴㧔㊄ਭඳᔘ㧘1999㧕
Vertically 2-dmensional Nonlinear Problem. (H. Kanehisa, 1999)╙ 39 ภ ቴⷰ⊛੍ႎᛛⴚߩ⎇ⓥ㧔੍ႎ⎇ⓥㇱ㧘2000㧕
Study on the Objective Forecasting Techniques㧔Forecast Research Department, 2000㧕
╙ 40 ภ ධ㑐᧲࿾ၞߦ߅ߌࠆᔕജ႐ߣ࿾㔡ᵴേ੍᷹ߦ㑐ߔࠆ⎇ⓥ㧔࿾㔡Ἣጊ⎇ⓥㇱ㧘2000㧕
Study on Stress Field and Forecast of Seismic Activity in the Kanto Region㧔Seismology and Volcanology Research
Department, 2000㧕
╙ 41 ภ 㔚㊂Ṣቯᴺߦࠃࠆᶏ᳓ਛߩో὇㉄Ớᐲߩ㜞♖ᐲಽᨆ߅ࠃ߮ᄢ᳇ਛߩੑ㉄ൻ὇⚛ߣᶏ᳓ਛߩో὇㉄ߩ᡼኿ᕈ὇⚛
− 32 −

ห૏૕Ყߩ᷹ቯ㧔⍹੗㓷↵࡮ศᎹਭᐘ࡮᧻ᨑ⑲๺㧘2000㧕
Coulometric Precise Analysis of Total Inorganic Carbon in Seawater and Measurements of Radiocarbon for the Carbon
Dioxide in the Atmosphere and for the Total Inorganic Carbon in Seawater㧔I.Masao, H.Y.Inoue and H.Matsueda, 2000㧕
╙ 42 ภ ᳇⽎⎇ⓥᚲ㧛ᢙ୯੍ႎ⺖⛔৻㕖㕒ജቇࡕ࠺࡞㧔ᢧ⮮๺㓶࡮ട⮮ノਯ࡮᳗ᚭਭ༑࡮ቶ੗ߜ޽ߒ㧘2001㧕
Documentation of the Meteorological Research Institute / Numerical Prediction Division Unified Nonhydrostatic
Model(Kazuo Saito, Teruyuki Kato, Hisaki Eito and Chiashi Muroi㧘2001)╙ 43 ภ ᄢ᳇߅ࠃ߮ᶏ᳓ਛߩࠢࡠࡠࡈ࡞ࠝࡠࠞ࡯ࡏࡦ㘃ߩ♖ኒ᷹ቯߣ᳇⽎⎇ⓥᚲࠢࡠࡠࡈ࡞ࠝࡠࠞ࡯ࡏࡦ㘃ᮡḰࠟࠬߩ⏕┙㧔ᤨᨑ㓉ਯ࡮੗਄(ศᎹ)ਭᐘ㧘2004㧕
Precise measurements of atmospheric and oceanic chlorofluorocarbons and MRI chlorofluorocarbons calibration
scale(Takayuki Tokieda and Hisayuki Y. Inoue㧘2004)╙ 44 ภ PostScript ࠦ࡯࠼ࠍ↢ᚑߔࠆឬ↹࠷࡯࡞"PLOTPS"ࡑ࠾ࡘࠕ࡞㧔ട⮮ノਯ㧘2004㧕
Documentation of "PLOTPS": Outputting Tools for PostScript Code(Teruyuki Kato㧘2004)╙ 45 ภ ᳇⽎ᐡ෸߮᳇⽎⎇ⓥᚲߦ߅ߌࠆੑ㉄ൻ὇⚛ߩ㐳ᦼ᷹ⷰߦ૶↪ߐࠇߚᮡḰࠟࠬߩࠬࠤ࡯࡞ߣߘߩ቟ቯᕈߩౣ⹏ଔ
ߦ㑐ߔࠆ⺞ᩏ࡮⎇ⓥ㧔᧻ᨑ⑲๺࡮㗇↰৻ੱ࡮⷏ጟ૒༑ሶ࡮ᐔ㊁␞ᦶ࡮Ỉ ᐾ੺࡮ဝ੗৻ኡ࡮ႇ ਯᥓ࡮␹⼱߭ߣߺ࡮ᩮᧄ๺ብ࡮㐳੗⑲᮸࡮ศ↰㓷ม࡮ጤ㊁࿦ၔ࡮ጊᧄ ᴦ࡮᫪ਅ⑲ᤘ࡮㎨↰ආବ࡮๺↰ ᤩ㧘2004㧕
Re-evaluation for scale and stability of CO2 standard gases used as long-term observations at the Japan Meteorological
Agency and the Meteorological Research Institute (Hidekazu Matsueda, Kazuto Suda, Sakiko Nishioka, Toshirou Hirano,
Yousuke, Sawa, Kazuhiro Tuboi, Tsutumi, Hitomi Kamiya, Kazuhiro Nemoto, Hideki Nagai, Masashi Yoshida, Sonoki
Iwano, Osamu Yamamoto, Hideaki Morishita, Kamata, Akira Wada㧘2004)╙ 46 ภ ࿾㔡⊒↢ㆊ⒟ߩ⹦⚦ߥࡕ࠺࡝ࡦࠣߦࠃࠆ᧲ᶏ࿾㔡⊒↢ߩផቯ♖ᐲะ਄ߦ㑐ߔࠆ⎇ⓥ㧔࿾㔡Ἣጊ⎇ⓥㇱ, 2005㧕
A Study to Improve Accuracy of Forecasting the Tokai Earthquake by Modeling the Generation Processes (Seismology
and Volcanology Research Department, 2005)╙ 47 ภ ᳇⽎⎇ⓥᚲ౒↪ᶏᵗࡕ࠺࡞㧔㧹㧾㧵.㧯㧻㧹㧕⸃⺑㧔ᶏᵗ⎇ⓥㇱ, 2005㧕
Meteorological Research Institute Community Ocean Model (MRI.COM) Manual (Oceanographical Research
Department, 2005)╙ 48 ภ ᣣᧄᶏ㒠㔐㔕ߩ㒠᳓ᯏ᭴ߣੱᎿ⺞▵ߩน⢻ᕈߦ㑐ߔࠆ⎇ⓥ㧔‛ℂ᳇⽎⎇ⓥㇱ࡮੍ႎ⎇ⓥㇱ, 2005㧕
Study of Precipitation Mechanisms in Snow Clouds over the Sea of Japan and Feasibility of Their Modification by
Seeding (Physical Meteorology Research Department, Forecast Research Department, 2005)╙ 49 ภ 2004 ᐕᣣᧄ਄㒽บ㘑ߩ᭎ⷐߣⅣႺ႐㧔บ㘑⎇ⓥㇱ, 2006㧕
Summary of Landfalling Typhoons in Japan, 2004 (Typhoon Research Department, 2006)╙ 50 ภ ᩕ㙃Ⴎ᷹ቯ↪ᶏ᳓⚵ᚑᮡḰߩ 2003 ᐕ࿖㓙౒หታ㛎ႎ๔㧔㕍ጊ㆏ᄦ, 2006㧕
2003 Intercomparison Exercise for Reference Material for Nutrients in Seawater in a Seawater Matrix (Michio Aoyama,
2006)− 33 −

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気象研究所技術報告
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第 51 号
ᐔᚑ 20 ᐕ ٤᦬ ⊒ⴕ
平成 19 年 12 月 発行 ✬ 㓸 ౗
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者  ٤٤٤٤٤٤٤٤٤
株式会社アサヒビジネス         ‫ޥ‬〒 314-0022 茨城県鹿嶋市長栖 1879-275