Garaba, Shungudzemwoyo Pascal; Albinus, Michelle (2022): Secchi disk measurements during Nodularia spumigena bloom on Lake Bante in Wilhemshaven, Germany [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.951239
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Published: 2022-11-24 • DOI registered: 2022-12-24
Abstract:
A black and white Secchi disk with a diameter of 30 cm was used during the Lake Bante field campaign aboard an electric powered boat on 25 August 2022 in Wilhelmshaven, Germany. The disk had a steel weight attached at the bottom to keep it stable in the water column. Here, Secchi disk depth was collected as a descriptor of water transparency/clarity. More information about Secchi disk depth procedures and importance is explained in open-access works e.g., (Garaba et al., 2015; Wernand, 2011). At each station on Lake Bante, the black and white Secchi disk was lowered into the water until it was no longer visible. The depth at which it disappeared or was no longer visible was recorded as a distance from the water surface to the disk. The recorded depth information was then used to describe water clarity as clear or turbid using the Secchi disk depth in meters as an index.
Keyword(s):
Related to:
Garaba, Shungudzemwoyo Pascal; Friedrichs, Anna; Voß, Daniela; Zielinski, Oliver (2015): Classifying Natural Waters with the Forel-Ule Colour Index System: Results, Applications, Correlations and Crowdsourcing. International Journal of Environmental Research and Public Health, 12(12), 16096-16109, https://doi.org/10.3390/ijerph121215044
Funding:
European Space Agency (ESA), grant/award no. 4000132037/20/NL/GLC: Discovery Element of the European Space Agency's Basic Activities
German Research Foundation (DFG), grant/award no. 417276871: Exploring remote sensing of plastics in marine litter
Coverage:
Median Latitude: 53.507320 * Median Longitude: 8.096989 * South-bound Latitude: 53.504714 * West-bound Longitude: 8.078544 * North-bound Latitude: 53.510595 * East-bound Longitude: 8.113457
Date/Time Start: 2022-08-25T10:02:06 * Date/Time End: 2022-08-25T11:51:45
Event(s):
LakeBante * Latitude: 53.508000 * Longitude: 8.100000 * Location: Germany * Method/Device: Secchi disk (SD)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Station label | Station | Garaba, Shungudzemwoyo Pascal | |||
| 2 | DATE/TIME | Date/Time | Garaba, Shungudzemwoyo Pascal | Geocode | ||
| 3 | LATITUDE | Latitude | Garaba, Shungudzemwoyo Pascal | Geocode | ||
| 4 | LONGITUDE | Longitude | Garaba, Shungudzemwoyo Pascal | Geocode | ||
| 5 | Depth of Secchi Disk | z(SD) | m | Garaba, Shungudzemwoyo Pascal |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
28 data points
Data
| 1 Station | 2 Date/Time | 3 Latitude | 4 Longitude | 5 z(SD) [m] |
|---|---|---|---|---|
| 1 | 2022-08-25T10:02:06 | 53.5093163 | 8.1134566 | 1.0 |
| 2 | 2022-08-25T10:09:36 | 53.5099500 | 8.1132384 | 0.9 |
| 3 | 2022-08-25T10:16:26 | 53.5105950 | 8.1096340 | 1.0 |
| 4 | 2022-08-25T10:24:53 | 53.5089158 | 8.1077334 | 1.0 |
| 5 | 2022-08-25T10:34:17 | 53.5072977 | 8.1063956 | 0.9 |
| 6 | 2022-08-25T10:41:19 | 53.5068489 | 8.1031428 | 1.0 |
| 7 | 2022-08-25T10:47:51 | 53.5078897 | 8.1015643 | 0.8 |
| 8 | 2022-08-25T10:57:16 | 53.5091782 | 8.0986128 | 0.6 |
| 9 | 2022-08-25T11:13:23 | 53.5054488 | 8.0789262 | 0.6 |
| 10 | 2022-08-25T11:21:01 | 53.5047144 | 8.0785439 | 0.2 |
| 11 | 2022-08-25T11:33:32 | 53.5055006 | 8.0821414 | 0.7 |
| 12 | 2022-08-25T11:39:01 | 53.5048175 | 8.0846641 | 0.6 |
| 13 | 2022-08-25T11:46:35 | 53.5063830 | 8.0872382 | 0.7 |
| 14 | 2022-08-25T11:51:45 | 53.5056244 | 8.0925507 | 0.8 |