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Seasonal variability in 7Be depositional fluxes at Granada, Spain.

机译:西班牙格拉纳达7Be沉积通量的季节性变化。

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摘要

Measurement of 7Be depositional fluxes at Granada, Spain (37 degrees 10'50''N-3 degrees 35'44''W, altitude 670 m) in the period 1995 through 1998 indicates substantial variations between the four seasons and also between corresponding seasons in different years, ranging from 23.6 to 242 Bq m(-2) per season. A strongly positive correlation with precipitation is shown, which explains about 70% of the variations in the 7Be depositional fluxes over the 16 seasons studied. The depositional 7Be flux is on the average highest in the fall and lowest in the summer. The study shows that precipitation primarily controls the 7Be depositional flux and plays a dominant role in the removal of 7Be from the troposphere. The average annual 7Be depositional flux at Granada amounts to 469+145 Bq m(-2).
机译:在1995年至1998年期间测量的西班牙格拉纳达7Be沉积通量(37度10'50''N-3度35'44''W,海拔670 m)表明四个季节之间以及相应季节之间存在很大差异在不同的年份,从每个季节23.6到242 Bq m(-2)不等。显示出与降水的强正相关,这解释了在所研究的16个季节中7Be沉积通量的大约70%的变化。沉积的7Be通量在秋季平均最高,在夏季平均最低。研究表明,降水主要控制7Be的沉积通量,并在对流层中7Be的去除中起主要作用。格拉纳达的年平均7Be沉积通量为469 + 145 Bq m(-2)。

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