This study investigated the characteristics of variations in carbon dioxide concentration and air temperature with the vertical change of surface in a grassplot. Field observations were carried out at a grassplot in Gyeongnam Science High School, over four days in August and November, 2015. Continuous observation equipment (GMP343, VAISALA) was installed at the LP (0.1 m from the surface) and UP (1.1 m from the surface) points, and the carbon dioxide concentration and air temperature were measured simultaneously at 1-min intervals. To summarize the results of the observation, August had higher than average concentrations of carbon dioxide, while November showed average air temperatures. Moreover, the concentration of carbon dioxide was higher at the UP point, while the air temperature was higher at the LP point. The correlation coefficient of carbon dioxide concentration between the UP and LP points was 0.80 in August across all the four days, while it was higher in November at 0.58 0.95. The results of the regression analysis of carbon dioxide concentration with air temperature changes for both August and November showed a distinct change at the LP point (R2=0.36 0.76), as compared to the UP point (R2=0.1 0.57). Between the UP and LP points, the carbon dioxide concentration and air temperature regression analysis results indicated that an active exchange was taking place between the two points.

Abstract
 1. 서 론
 2. 연구 방법
 3. 결 과
 4. 토의
  4.1. 이산화탄소 농도와 기온의 여름철과 가을철 변동
  4.2. 이산화탄소 농도와 기온의 연직변동
  4.3. 이산화탄소 농도와 기온의 상관성
 5. 결 론
 REFERENCES

• 소윤환(부경대학교 지구과학연구소) | Yoon Hwan So (Geo-Sciences Institute, Pukyong National University)
• 강동환(부경대학교 지구과학연구소) | Dong Hwan Kang (Geo-Sciences Institute, Pukyong National University) Corresponding author
• 김일규(부경대학교 환경공학과) | Il Kyu Kim (Department of Environmental Engineering, Pukyong National University)
• 김병우(한국수자원공사 K-water융합연구원) | Byung Woo Kim (K-Water Convergence Institute, Korea Water Resources Corporation)
• 윤환진(경남과학고등학교) | Hwan Jin Yoon (Gyeongnam Science High School)
• 김시현(경남과학고등학교) | Si Hyeon Kim (Gyeongnam Science High School)
• 손용석(경남과학고등학교) | Yong Seok Son (Gyeongnam Science High School)
• 신정현(경남과학고등학교) | Jung Hyeon Shin (Gyeongnam Science High School)
• 안정우(경남과학고등학교) | Jeong Woo Ahn (Gyeongnam Science High School)