Open AccessAtmospheric deposition of 7 Be at a coastal Mediterranean station
Author(s) -
Dueñas C.,
Fernández M. C.,
Carretero J.,
Liger E.,
Cañete S.
Publication year - 2001
Publication title -
journal of geophysical research: atmospheres
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/2001jd000771
Subject(s) - sedimentary depositional environment , stratosphere , deposition (geology) , flux (metallurgy) , troposphere , mediterranean climate , atmospheric sciences , environmental science , seasonality , precipitation , climatology , mediterranean sea , oceanography , geology , meteorology , physics , geomorphology , geography , structural basin , statistics , mathematics , archaeology , materials science , metallurgy
The bulk 7 Be depositional flux was measured at Málaga (4°28′8″W; 36°43′40″N), a coastal Mediterranean station in the south of Spain, from 1992 to 1999. The annual 7 Be depositional flux varied between 188 and 585 Bq m −2 yr −1 with a mean of 412 Bq m −2 yr −1 , reflecting a Mediterranean climate where two well‐recognized wet and dry periods are dominant. Data on the 7 Be depositional flux in Málaga show that the seasonal variation is not uniform from year to year and the amount of precipitation primarily controls the depositional fluxes. This study shows that the 7 Be depositional fluxes during fall and winter were minimized and that the fallout maxima were confined to either spring and/or summer, possibly reflecting stratosphere/troposphere exchange. A comparison of our measurements and other data obtained at different locations in the world was also made.