2010 Fiscal Year Final Research Report
Development of a balloon-borne instrument for atmospheric carbon dioxide
| Project/Area Number |
20310008
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Environmental dynamic analysis
|
|---|
| Research Institution | Nagoya University |
|---|
Principal Investigator |
MATSUMI Yutaka Nagoya University, 太陽地球環境研究所, 教授 (30209605)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
NAKAYAMA Tomoki 名古屋大学, 太陽地球環境研究所, 助教 (40377784)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | 二酸化炭素 / 気球計測 / 地球温暖化 / 赤外吸収 / 温室効果気体 / 気球センサ / 機器開発 / 高度分布 |
|---|
| Research Abstract |
To ascertain the global and geophysical flux values of CO_2 and their seasonal and inter-annual variation, detailed CO_2 measurements including vertical distribution are required. Vertical CO_2 distribution in the troposphere, particularly in the planetary boundary layer, is key to estimate the local surface flux of CO_2. However, measurements of the vertical distribution are limited to some specific regions where specially equipped aircrafts are available. We are developing a low-cost, easy-to-operate, all-weather CO_2 sonde flown with a meteorological balloon. Balloon experiments with the CO_2 instruments were performed more than 10 times. The vertical profiles of CO_2 Mixing ratio were obtained with the vertical resolution of 300 m and precision of 1 ppm.
|
