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Behavior of N2O in the atmosphere and making the global budget using nitrogen and oxygen isotope systematics

Research Project

Project/Area Number 07454136
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 地球化学
Research InstitutionHokkaido University

Principal Investigator

TANAKA Noriyuki  Hokkaido University, Graduate school of environmental earth sciences, Associate Professor, 大学院・地球環境科学研究科, 助教授 (10261348)

Project Period (FY) 1995 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥7,700,000 (Direct Cost: ¥7,700,000)
Fiscal Year 1997: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1996: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1995: ¥4,900,000 (Direct Cost: ¥4,900,000)
Keywordsnitrous oxide / global budget / subarctic sea / forest soil / 大気 / 同位体 / 温室効果 / 沿岸 / 生成 / 土壌 / 積雪 / 海水 / 海産堆積物 / 北海道 / 消費 / 同位体効果
Research Abstract

In order to missing source of NィイD22ィエD2O in the atmosphere, intensive observations have been carried out in coastal sea in East China Sea and Funka bay, Japan. The observation of the flux from soils in grass land and forest floor also was performed for the evaluation. The flux observed in the Funka Bay, Japan was unexpectedly high and exhibit large seasonal fluctuation. On the other hand, the flux observed in East China Sea is quite normal one. Fluxes from grass land and forest especially in snow fall season is unexpectedly high, indicating that winter flux of those area is significant contribution in the global nitrous oxide budget.

Report

(4 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] N. Tanaka: "High precision mass spectrometric analysis of isotopic aburdance ratios in nitrous axide by direct injecotion of N_2O"J. Mass Spec. Ian Proc.. 142. 163-175 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] N. Tanaka, D. M.. Rye, R. Rye, H. Avak and T. Yoshinari: "High precision mass spectrometric analysis of isotopic abundance ratios in nitrous oxide by direct injection of N2O"J.Mass.Spec. Ion Proc.. 142. 163-175 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y Matsumi: "Reaction and quenching of cl(2pj)atoms in collision with methane and deuterated inathcuse." L.Phys.chem. 10. 1216-1221 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 田中教幸: "Transfer rates of dissulued tracers through estuarics basedon ^<228>Ra : a Study of Long Island Sound" Continmtal Shelf Research. 16 (7). 863-873 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 田中教幸: "^<224>Ra distribition in surfave and deep water of Lond Island Sound : sources and horizousol trausport ratcs" Continmtal Shelf Research. 16 (12). 1545-1559 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 田中教幸: "Reaction and Quenching of Cl (2pj) atoms in collisions with meshane and dentrcatedmethans" J. Phys. chem.(印刷中).

    • Related Report
      1996 Annual Research Report
  • [Publications] 田中教幸: "海洋表面での二酸化炭素交換と炭素同位体比の関係" 月刊 海洋. 別外(11). 16-19 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 田中教幸: "新しい視点からの海水研究" 日刊 海洋. 28 (9). 566-571 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Noriyuki Tanaka: "Ab Initio Study on Carbon Kinetic Isotope Effect(KIE)in the Reaction of CH_4+Cl." Journal of Atmospheric Chemistry. 23. 37-49 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Noriyuki Tanaka: "High Precision mass spechomethic analysis of isotopic abundance ratios in ninous oyide by direct Injection of N_2O" Int.J.Mass Spectro.& Ion Process. 142. 163-175 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Noriyuki Tanaka: "The determination of dry deposition flux of SO_2 using cofnogenic 35S and ^7Be measurements" Journal of Geophysical Research. 100. 2841-2848 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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