Influence of precipitation on the daily beryllium-7 (7Be) activity concentration in the atmospheric surface layer

A study on surface air Beryllium-7 concentration at radionuclide station in Tanah Rata, Cameron Highlands (MYP42) during southwest monsoon seasons in Malaysia

“…However, this study does not delve into the specifics behind these lower readings. Considering that rain or precipitation is the most influential factor in Be-7 deposition, as described in studies such as [24], [25], [26], [27], and [28], these findings do not align with the study by [3] which suggests that June experiences the least rainfall, and August sees the highest precipitation during SWM period. It may be due to the position of Cameron Highlands, which is not so affected by the SWM as mentioned in [27], where geographical attributes including latitude, longitude and altitude can give effect to radionuclide deposition rates.…”

Monitoring Surface 10Be/7Be Directly Reveals Stratospheric Air Intrusion in Sichuan Basin, China

“…Since the sources of 7 Be and 10 Be are controlled only by cosmic rays, and mainly produced at the lower of the stratosphere and the top of the troposphere (Brown et al., 1989), the variation of 7 Be concentration in the near‐surface air is generally observed to trace atmospheric mass transport processes (Bhandari et al., 1966). However, in addition to stratosphere‐troposphere exchange variability, local effects (such as local precipitation rate and tropospheric transport) can change the atmospheric 7 Be concentration (Heikkila et al., 2008; Kremenchutskii, 2021). Second, the production rates of 7 Be at different latitudes are different (Masarik & Beer, 1999).…”

“…precipitation rate and tropospheric transport) can change the atmospheric 7 Be concentration (Heikkila et al, 2008;Kremenchutskii, 2021). Second, the production rates of 7 Be at different latitudes are different (Masarik & Beer, 1999).…”