北アルプス槍ケ岳付近の夏季における気温の特性

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The purpose of this report is to discuss the diurnal variation on the lapse-rate of air temperature in the vicinity of Yari-ga-Take in July and August, 1969. The air temperature(Ta) was expressed as a function of altitude(H). The results are summarized as follows: 1) The average lapse-rate of air temperature in July and August was 0.61℃/100 m. The maxmum rate (0.82℃/100 m) was observed on July 30 when it was cloudy, and the minimum (0.38℃/100 m) on July 9 when it was rainy. The lapse-rate of air temperature on rainy days tended to be within the range of 0.38-0.69℃/100 m. The lapse-rate on cloudy days varied between 0.52℃/100 m and 0.82℃/100 m. On fine days, it is nearly equal to the monthly average, ranging from 0.51℃/100 m to 0.66℃/100 m. 2) The lapse-rate of air temperature is influenced considerably by the wind direction. Immediately after continuous S wind direction in the Matsumoto meteorogical observatory, the lapserate of air temperature becomes even larger value, but the lapse-rate in NW or NNW wind direction and calm indicated small value. 3) The diurnal variation on the lapse-rate of air temperature in July and August was shown in Fig. 5. The maximum rate (0.97℃/100 m) was observed at 12 o'clock on July 30, and the minimum (0.30℃/100 m) at 6 o'clock on July 9.
地学団体研究会の論文
1979-05-25