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Environmental Technology Research Network
in the Asia-Pacific Region

DB for Research Project
Category(1) : Global Change
Category(2) : Modeling


  1. Project Name
  2. Duration
  3. Research Catagory 1
  4. Research Catagory 2
  5. Research Field
  6. Researchers
  7. Affiliation 1
  8. Affiliation 2
  9. Address
  10. Country
  11. Phone
  12. Fax
  13. Project Summary
  14. Publications
  15. International Joint Study with

Geological Survey of Japan(GSJ), Japan

  1. Transportation and removal of carbon in ocean through particulate materials
  2. 1995-1999
  3. global change, ocean, sediments
  4. measurement, modeling
  5. geology, chemistry, and biology
  6. Akira NISHIMURA, Hodaka KAWAHATA, Ken IKEHARA, Yuichiro TANAKA, Takeshi NAKAJIMA, and Atushi SUZUKI
  7. Marine Mineral Resources Sec. and Coastal Sedimentatin Sec., Marine Geology Dept.
  8. GSJ, AIST, MITI
  9. 1-1-3 Higashi, Tsukuba, Ibaraki 305
  10. Japan
  11. 81-298-61-3594
  12. 81-298-61-3589
  13. Global warming caused by greenhouse gases is one of the most severe environmental problems in global change. The aim of this research is to clear the carbon cycle in ocean, which is a large reservoir of carbon and has an important role of climatic change. The flux and characteristcs of particulate materials sampled in a sediment trap and sea-bottom sediments sampled by a multiple corer are analyzed as a point of view of carbon cycle and carbon flux in ocean. Dissolution and decomposition of particulate materials duribg the transportation process and diagenesis at the sea-bottom interface are important processses of carbon cycle in the deeper part of the ocean. We have researched thse processes and we will make their model.
  14. 1) Akira Nishimura et al., Global environmental problems and global carbon cycle - What should geologists do? -, Jour. Geol. Soc. Japan, 100, 409-416, 1994. 2) Hodaka Kawahata et al., The fluctuation of primary productivity during the last 300 kyr in the West Caroline Basin, Jour. Geol. Soc. Japan, 100, 762-770,1994.

National Institute for Resources and Environment(NIRE), Japan

  1. Japanese Study on the Behavior of Greenhouse Gases and Aerosols
  2. 1990-1999
  3. global change, air, water, ocean
  4. counter measures, reaction mechanism, measurement, monitoring, modeling
  5. chemistry, geophysics
  6. Takashi IBUSUKI, Koji TAKEUCHI, Shuzo KUTSUNA, Kazuhide KOIKE, Hitomi KOBARA
  7. Photoenergy Application Div., Global Warming Control Dept.
  8. NIRE, AIST, MITI
  9. 16-3 Onogawa, Tsukuba, Ibaraki 305
  10. Japan
  11. 81-298-61-8168
  12. 81-298-61-8158
  13. This project aims at conducting research and observation on long-term trend of greenhouse materials and on the material circulation and quantitative analysis of natural balance in order to estimate and predict influence of anthropogenic and natural greenhouse gases.
  1. Optical Characteristics of Aerosol Related to Atmospheric Radiation
  2. 1994-1996
  3. global change, air
  4. measurement, monitoring, modeling
  5. physics
  6. Masaaki SHIRAHASE, Hidenori YOSHIYAMA, Nobuyuki KOGURE, Akihiko OHI
  7. Air Quality Measurement Div. Atmospheric Environmental Protection Dept.
  8. NIRE, AIST, MITI
  9. 16-3 Onogawa, Tsukuba, Ibaraki 305
  10. Japan
  11. 81-298-61-8285
  12. 81-298-61-8259
  13. This research aims at basically clarifying and estimating the effect of tropospheric aerosol on atmospheric radiation. The measuring method of scattered light from a single particle suspended and fixed in electromagnetic fields is established, and the optical characteristics of an atmospheric aerosol is found.
  14. Hidenori Yoshiyama et al., Measurement of Size Distribution from Angular Distribution of Scattered Light and Its Spectrum at a Given Scatterring Angle, J. Aerosol Research Japan, 9, 134-143, 1994