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PANGAEA.
Data Publisher for Earth & Environmental Science

Schumann, G; Möller, U (1969): Fallout and concentration of aerosol-borne radioactivity over the Atlantic (Appendix). PANGAEA, https://doi.org/10.1594/PANGAEA.665707, Supplement to: Schumann, G; Möller, U (1969): Fallout und Konzentration aerosolgetragener Radioaktivität auf dem Atlantik. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe B Meteorologie und Aeronomie, Gebrüder Bornträger, Berlin, Stuttgart, B3, 40-47

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Abstract:
Measurements of atmospheric radioactivity attached to aerosols are described. Fallout was collected in a vessel of large area. Emphasis was on separation of "wet" and "dry" samples. For strontium 90 a ratio of "wet" to "dry" fallout of 5:1 has been found independent of latitude. The total fallout was smaller than comparable values from continents because of very small amounts of rainfall in the equatorial zone. In order to achieve consistency in the global balance a better knowledge not only of radioactivity but also of precipitation over the ocean is required. Fallout of Ra-D clearly shows the ITC as a barrier for the latitudinal movement of near sea-surface air masses. The concentration of short-lived emanation daughters shows large variations according to varying geographic conditions. A variation with time could not be explained. The specific activity of long-lived radioactive substances shows the expected effect of the ITC as well as a seasonal diminuation of average concentration, similar to that measured at Heidelberg.
Coverage:
Median Latitude: 6.035714 * Median Longitude: -26.250000 * South-bound Latitude: -8.000000 * West-bound Longitude: -35.000000 * North-bound Latitude: 47.000000 * East-bound Longitude: -17.000000
Date/Time Start: 1965-08-13T00:00:00 * Date/Time End: 1965-12-11T00:00:00
Minimum ALTITUDE: 14 m * Maximum ALTITUDE: 14 m
Event(s):
M2-track * Latitude Start: 56.200000 * Longitude Start: 6.800000 * Latitude End: 53.800000 * Longitude End: 7.200000 * Date/Time Start: 1965-07-21T00:00:00 * Date/Time End: 1965-12-15T23:00:00 * Location: Atlantic * Campaign: M2 (IQSY - Jahre der ruhigen Sonne, Atlantische Expedition 1965) * Basis: Meteor (1964) * Method/Device: Underway cruise track measurements (CT)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeGeocode
2LATITUDELatitudeGeocode
3LONGITUDELongitudeGeocode
4ALTITUDEAltitudemGeocode
5Date/time endDate/time endSchumann, G
6Latitude 2Latitude 2Schumann, G
7Sample code/labelSample labelSchumann, G
8Duration, number of daysDurationdaysSchumann, G
9Precipitation integratedPrecip intmmSchumann, GRain gauge
10Dust, aeolianDustSchumann, G
11Strontium-90, activity90Sr activBqSchumann, G
12Strontium-90, flux90Sr fluxmBq/m2/daySchumann, G
13Lead-210, activity210Pb activBqSchumann, G
14Lead-210, flux210Pb fluxmBq/m2/daySchumann, G
15Lead-210/Strontium-90 ratio210Pb/90SrSchumann, G
Size:
254 data points

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