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):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | DATE/TIME | Date/Time | Geocode | |||
2 | LATITUDE | Latitude | Geocode | |||
3 | LONGITUDE | Longitude | Geocode | |||
4 | ALTITUDE | Altitude | m | Geocode | ||
5 | Date/time end | Date/time end | Schumann, G | |||
6 | Latitude 2 | Latitude 2 | Schumann, G | |||
7 | Sample code/label | Sample label | Schumann, G | |||
8 | Duration, number of days | Duration | days | Schumann, G | ||
9 | Precipitation integrated | Precip int | mm | Schumann, G | Rain gauge | |
10 | Dust, aeolian | Dust | Schumann, G | |||
11 | Strontium-90, activity | 90Sr activ | Bq | Schumann, G | ||
12 | Strontium-90, flux | 90Sr flux | mBq/m2/day | Schumann, G | ||
13 | Lead-210, activity | 210Pb activ | Bq | Schumann, G | ||
14 | Lead-210, flux | 210Pb flux | mBq/m2/day | Schumann, G | ||
15 | Lead-210/Strontium-90 ratio | 210Pb/90Sr | Schumann, G |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
254 data points