- 著者
- Mariko Kumamoto Michiko Otsuka Takeshi Sakai Takashi Hamagami Hiroshi Kawamura Tadayoshi Aoshima Fumiaki Fujibe
- 出版者
- Meteorological Society of Japan
- 雑誌
- SOLA (ISSN:13496476)
- 巻号頁・発行日
- vol.9, pp.56-59, 2013 (Released:2013-05-04)
- 参考文献数
- 9
- 被引用文献数
- 6 9
A field experiment to clarify the characteristics of temperature distribution near an asphalt car road was carried out at the Meteorological Instruments Center in Tsukuba, Japan. Fifteen thermometers equipped with artificially ventilated radiation shields were installed on a wide grass field within a distance of 10 m from edges of the road. At a height of 0.5 m above the ground, the temperature on the leeward side of the road was found to show substantial bias from that on the windward side of the road. The biases were positive values of 0.2-0.4°C on the average and larger when the thermometers was nearer to the road or in cases of lower wind speed. The temporal variation of the biases showed a diurnal change and had a maximum peak in the evening and negative values during some hours of the day. Smaller positive biases around 0.1°C were also found at a height of 1.5 m during some time of the day whereas small negative biases were seen at a height of 2.5 m in summer. These results indicate complicated distribution of roadside temperature, although they can partly be interpreted by advection of air heated over the road.
- 著者
- Takao Kuwada-Kusunose Takeshi Sakai Kunihiro Suzuki
- 出版者
- Arachnological Society of Japan
- 雑誌
- Acta Arachnologica (ISSN:00015202)
- 巻号頁・発行日
- vol.65, no.1, pp.43-47, 2016-08-31 (Released:2016-11-02)
- 参考文献数
- 21
- 被引用文献数
- 3
- 著者
- Takao Kuwada-Kusunose Takeshi Sakai Tomoyasu Ebihara Kunihiro Suzuki
- 出版者
- Arachnological Society of Japan
- 雑誌
- Acta Arachnologica (ISSN:00015202)
- 巻号頁・発行日
- vol.65, no.1, pp.27-31, 2016-08-31 (Released:2016-11-02)
- 参考文献数
- 26
- 被引用文献数
- 2
Prey capture and subsequent behaviors of Calommata signata (Araneae: Atypidae) were observed and video-documented in the laboratory Our observations indicated that the spider captures various soil animals by using only its chelicerae. Furthermore, when closing the entrance of the burrow, the spider made a provisional cover of the entrance by hooking and drawing the inner surface of the burrow before covering the entrance with silk webbing from its spinnerets.