Citation:

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

Name: Fallout and concentration of aerosol-borne radioactivity over the Atlantic (Appendix)
Published: 1969
License: https://creativecommons.org/licenses/by/3.0/

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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: (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

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Date/Time	2 Latitude	3 Longitude	4 Altitude [m]	5 Date/time end	6 Latitude 2	7 Sample label	8 Duration [days]	9 Precip int [mm]	10 Dust	11 90Sr activ [Bq]	12 90Sr flux [mBq/m²/day]	13 210Pb activ [Bq]	14 210Pb flux [mBq/m²/day]	15 210Pb/90Sr
1965-08-13	47	-17	14	1965-08-16	40	RM 01	2.60	9.05		2.590	41.440	0.644	10.360	0.35
1965-08-16	40	-28	14	1965-08-20	26	MTr 01	4.16	<0.25		0.659	6.586	0.536	5.402	0.82
1965-08-20	26	-28	14	1965-08-24	8	MTr 02	3.91	<0.25	Sahara
1965-08-24	8	-30	14	1965-08-25	6	RM 02	1.00	0.50		0.192	7.992	0.255	10.619	1.33
1965-08-25	6	-30	14	1965-08-30	0	MTr 03	5.00	<0.25		0.147	1.221	0.265	2.220	1.80
1965-08-30	0	-30	14	1965-09-03	-1	MTr 04	4.09	<0.25				0.381
1965-09-03	-1	-30	14	1965-09-08	-8	RM 03	4.67	0.55		0.137	1.221	0.240	2.146	1.76
1965-09-08	-8	-35	14	1965-09-14	-3	MTr 05	6.12	<0.25		0.142	0.962	0.403	2.775	2.84
1965-09-14	-3	-30	14	1965-09-16	0	RM 05	2.00	0.50		0.082	1.702	0.305	6.364	3.74
1965-09-16	0	-30	14	1965-09-22		MTr 06	5.91	0.30		0.100	0.703	0.440	3.108	4.43
1965-09-22	0	-30	14	1965-09-29		MTr 07	7.05	<0.25		0.115	0.703	0.243	1.443	2.11
1965-09-29	0	-30	14	1965-10-04		MTr 08	5.05	<0.25		0.253	2.109	0.281	2.331	1.11
1965-10-04	0	-30	14	1965-10-09		MTr 09	5.12	<0.25
1965-10-09	0	-30	14	1965-10-11		RM 06	1.93	0.80		0.166	3.589	0.374	8.029	2.22
1965-10-11	0	-30	14	1965-10-16	-8	MTr 10	4.91	<0.25		0.133	1.147	0.364	3.108	2.74
1965-10-16	-8	-35	14	1965-10-21		RM 07	5.09	<0.25
1965-10-21	-8	-30	14	1965-10-27	0	MTr 11	5.91	<0.25		0.254	1.776	0.466	3.293	1.84
1965-10-27	0	-23	14	1965-10-29	1	RM 08	2.05	1.50		0.350	7.104	0.566	11.507	1.63
1965-10-29	1	-23	14	1965-11-02	-3	MTr 12	4.05	<0.25		0.124	1.295	0.239	2.405	1.91
1965-11-02	1	-23	14	1965-11-06	-3	MTr 13	4.05	0.40		0.165	1.702	0.337	3.478	2.04
1965-11-06	1	-23	14	1965-11-11	-3	MTr 14	5.23	<0.25		0.143	1.147	0.348	2.775	2.43
1965-11-11	0	-23	14	1965-11-14	-2	RM 09	2.75	1.80		0.451	6.808	0.844	12.802	1.88
1965-11-14	-1	-23	14	1965-11-15		RM 10	1.00	0.80		0.182	7.585	0.599	25.049	3.30
1965-11-15	-2	-20	14	1965-11-20	1	MTr 15	5.06	0.80		0.292	2.405	0.799	6.549	2.74
1965-11-20	1	-19	14	1965-11-24	10	MTr 16	4.17	<0.25	Sahara			0.684	6.845
1965-11-24	10	-19	14	1965-12-01	14	MTr 17	6.83	<0.25	Sahara	0.149	0.925	1.110	6.771	7.45
1965-12-01	14	-19	14	1965-12-11	45	MTr 18	10.00	0.50		0.818	3.404	1.047	4.366	1.28
1965-12-11	45	-17	14	1965-12-14	53	MTr 19	3.00	0.50		0.633	10.064	0.370	5.143	0.59