ข้อมูลงานวิจัย

กายภาพและสิ่งแวดล้อมกายภาพ

The energy balance of a tropical evergreen forest

Journal of Applied Meteorology and Climatology

Dry Evergreen Forest

1980/2523

บทความ

ฉบับสมบูรณ์

กายภาพและสิ่งแวดล้อมกายภาพ

Energy Balance

This study presents the radiation climate of a dry tropical forest. It is based on measurements of incoming and outgoing shortwave and longwave radiation at the top and floor of the forest canopy during five months spanning the monsoon cycle in Southeast Asia. The 24 h daily totals of the downward radiation in the 0.3-60 (Mu)m range seem to be independent of season in this monsoonal region (Tilde1200 ly at forest top and 900 ly at forest floor). The total 24 h daily downward radiation (0.3-60 (Mu)m) at forest floor amounts to 75% of the total daily downward radiation at canopy top. The total 24 h daily net radiation at the forest floor amounts only to 5% of the net radiation at the canopy top showing a very small diurnal and seasonal variation. The average daytime total of the shortwave radiation (0.3-3 (Mu)m) at the forest floor amount only to Tilde8% of the corresponding value at forest top. The daily total (24 h) of the downward longwave (3-60 (Mu)m) radiation at the forest floor is Tilde8% higher than the corresponding value at the forest top. Sensible heat flux computations are expressed in the framework of the Thornthwaite-Holzman equation. Regression equations are developed between the shortwave (0.3-60 (Mu)m) at the canopy top for each season.

Pinker, R. T., Thompson, O. E., & Eck, T. F. (1980). The energy balance of a tropical evergreen forest. Journal of Applied Meteorology and Climatology, 19(12), 1341-1350.

Owen E. Thompson(โอเวน อี. ทอมป์สัน) Rachel T. Pinker(ราเชล ที. พิงเกอร์) Thomas Eck(โทมัส เอ็ค)