Pykäri, Janina (2022): Photosynthetically active radiation measurements in Pohjanpitäjänlahti bay in May 2021 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.947079, In: Pykäri, J (2022): Light attenuation data set along a coastal salinity gradient in Pohjanpitäjänlahti bay in May 2021 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.947091
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Published: 2022-08-16 • DOI registered: 2022-11-16
Abstract:
Photosynthetically active radiation (PAR) was measured underwater at various depths from Pohjanpitäjänlahti bay in May 2021 from four stations along a coastal salinity gradient with an upward-facing light meter. PAR underwater was measured by lowering the light sensor to the desired depth. Light intensity at the surface was measured simultaneously with an upward-facing light logger at the boat to provide reference values for light intensity. The measurements were done 8 times from a small boat. The data was collected to a thesis funded by Walter and Andreé de Nottbeck Foundation.
Keyword(s):
Related to:
Pykäri, Janina (2022): Comparing three methods to estimate light attenuation along a coastal salinity gradient [thesis]. Master's thesis. University of Helsinki, https://urn.fi/URN:NBN:fi:hulib-202205041795
Coverage:
Median Latitude: 59.987407 * Median Longitude: 23.426733 * South-bound Latitude: 59.855850 * West-bound Longitude: 23.260533 * North-bound Latitude: 60.092850 * East-bound Longitude: 23.568400
Date/Time Start: 2021-05-04T13:35:00 * Date/Time End: 2021-05-27T12:50:00
Minimum DEPTH, water: 0.00 m * Maximum DEPTH, water: 9.15 m
Event(s):
Pojo_bay_1 * Latitude: 60.092850 * Longitude: 23.568400 * Date/Time Start: 2021-05-04T14:40:00 * Date/Time End: 2021-05-27T10:10:00 * Elevation: -4.2 m * Location: Pohjanpitäjänlahti bay * Method/Device: Multiple investigations (MULT)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Pykäri, Janina | |||
| 2 | DATE/TIME | Date/Time | Pykäri, Janina | Geocode | ||
| 3 | LATITUDE | Latitude | Pykäri, Janina | Geocode | ||
| 4 | LONGITUDE | Longitude | Pykäri, Janina | Geocode | ||
| 5 | DEPTH, water | Depth water | m | Pykäri, Janina | Geocode – underwater sensor | |
| 6 | Photosynthetic photon, flux density | PPFD | µmol/m2/s | Pykäri, Janina | Light sensor logger LI-1500, with LI-192 underwater quantum sensor, LI-COR Biosciences, Lincoln, NE, USA | underwater sensor light intensity |
| 7 | Photosynthetic photon, flux density | PPFD | µmol/m2/s | Pykäri, Janina | Light sensor logger LI-1500, with LI-190 quantum sensor, LI-COR Biosciences, Lincoln, NE, USA | reference surface sensor light intensity |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
662 data points
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