@article{oai:nipr.repo.nii.ac.jp:00010053, author = {Malingowski, Julie and Atkinson, David and Fochesatto, Javier and Cherry, Jessica and Stevens, Eric and Malingowski, Julie and Atkinson, David and Fochesatto, Javier and Cherry, Jessica and Stevens, Eric}, issue = {1}, journal = {Polar science, Polar science}, month = {Mar}, note = {A series of high resolution radiosonde launches were conducted over seven case-study days spanning spring 2009 and fall/winter 2010 during clear and calm nights at Fairbanks, Alaska to evaluate the effects of solar radiation, snow covered surfaces and low-level winds on the formation and evolution of surface-based temperature inversions (SBI). Transition seasons were selected because strong nighttime radiation cooling allows well-defined inversions to form while sufficient daytime solar heating allows the observation of dissipation processes in the sub-arctic latitudes. During the fall/winter period, co-located Doppler phased array acoustic soundings (SODAR) were carried out. The height of the SBI retrieved by radiosonde and SODAR did not differ more than 50 m. However, the SODAR profiles display a much more complex structure in the atmospheric boundary layer. Observations during this experiment demonstrated that the formation of the SBI is initiated by a rapid cooling at the surface followed by a steady columnar cooling and subsequent growth of the SBI depth overnight., 2009年春から2010年秋/冬にかけ、アラスカ、フェアーバンクスにおいて晴天で静寂な夜延べ7日間にわたって、高頻度の連続ラジオゾンデ観測が行われた。これは、日射や、地表面を覆う積雪、下層の風が接地逆転層の形成と発達にどのように影響するかを調べることを目的とした。冬と夏の間の移り変わりの季節が選ばれた。それは、亜北極域の緯度帯では夜間の強い放射冷却が接地逆転層の発達を促し、日中の日射加熱が逆転層の解消を来らすからである。秋から冬にかけては、並行してSODAR(ドップラー音波探査レーダー)観測を実施した。ラジオゾンデとSODARで求めた接地逆転層の厚さは50 mと違わなかった。しかし、SODARによると、大気境界層のより複雑な構造が示された。この観測を通じて、接地逆転層は地表での急激な冷却で形成されはじめ、続いて大気層が冷却し、その後夜を通じて逆転層の厚さが成長することが示された。}, pages = {24--39}, title = {An observational study of radiation temperature inversions in Fairbanks, Alaska}, volume = {8}, year = {2014} }