Johannsen, Alfred; Seifert, Alfred (1981): (Table 1) Chloride concentrations in water obtained from observation wells on Helgoland Dune, North Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.784694, Supplement to: Johannsen, A; Seifert, A (1981): Trinkwassergewinnung und -versorgung auf Helgoland - von den Anfängen bis zur Gegenwart. Meyniana, 33, 41-59, https://doi.org/10.2312/meyniana.1981.33.41
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Published: 1981 (exact date unknown) • DOI registered: 2012-07-19
Abstract:
The hydrogeological conditions are unfavourable for a sufficient supply of drinking-water. The small size of the catchment area, the large hydraulic gradient inside the steep 'Buntsandstein'-cliff and the low geodetic level of the 'Dune Island' and the foreshore at the eastern foot of the cliff do not allow the formation and recharge of a sufficiently exploitable geodetic freshwater dome over the underlying saltwater. This means that until recently the provision of sufficient drinking-water for the island's inhabitants, for its garrison as well as for visiting ships was a problem. This problem has now been solved by the desalination of seawater.
Coverage:
Latitude: 54.185000 * Longitude: 7.912600
Date/Time Start: 1952-01-01T00:00:00 * Date/Time End: 1952-01-01T00:00:00
Minimum ELEVATION: -3.57 m a.s.l. * Maximum ELEVATION: 0.75 m a.s.l.
Event(s):
Helgoland_Dune1952 * Latitude: 54.185000 * Longitude: 7.912600 * Date/Time: 1952-01-01T00:00:00 * Location: German Bight, North Sea * Campaign: Helgoland * Basis: Marine Station Helgoland * Method/Device: Bucket, plastic (WB)
Comment:
ELEVATION [m a.s.l.] represents the sampling depth (Entnahmetiefe).
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
78 data points
Data
| 1 Sample ID | 2 Elevation [m a.s.l.] | 3 Cl- [mg/l] | 4 Elev2 [m a.s.l.] |
|---|---|---|---|
| D 1 | -0.50 | 192 | -4.6 |
| D 1 | -1.42 | 263 | -4.6 |
| D 1 | -2.57 | 995 | -4.6 |
| D 1 | -3.57 | 7228 | -4.6 |
| D 2 | 0.40 | 79 | -3.5 |
| D 2 | -1.10 | 90 | -3.5 |
| D 2 | -2.60 | 186 | -3.5 |
| D 3 | 0.66 | 79 | -3.0 |
| D 3 | -0.99 | 79 | -3.0 |
| D 4 | 0.75 | 107 | -3.4 |
| D 4 | -0.95 | 123 | -3.4 |
| D 4 | -2.55 | 181 | -3.4 |
| D 5 | 0.34 | 82 | -2.2 |
| D 5 | -0.76 | 240 | -2.2 |
| D 5 | -1.86 | 970 | -2.2 |
| D 6 | 0.62 | 49 | -2.6 |
| D 6 | -0.63 | 81 | -2.6 |
| D 6 | -1.83 | 100 | -2.6 |
| D 7 | 0.73 | 105 | -3.7 |
| D 7 | -1.17 | 116 | -3.7 |
| D 7 | -2.42 | 188 | -3.7 |
| D 8 | -0.73 | 72 | -2.6 |
| D 9 | 0.73 | 93 | -3.8 |
| D 9 | -0.52 | 74 | -3.8 |
| D 9 | -1.82 | 93 | -3.8 |
| D 10 | -0.69 | 69 | -4.6 |