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Pykäri, Janina (2022): Spectral slopes of colored dissolved organic matter (cDOM) in Pohjanpitäjänlahti bay in May 2021 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.947077, 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

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Abstract:
Water samples were collected from Pohjanpitäjänlahti bay in May 2021 from four stations along a coastal salinity gradient. Absorption spectral slopes at 275-295, 350-400 and 300-650 nm were calculated for characterization of colored dissolved organic matter (CDOM). The samples were collected 8 times straight to plastic bottles from a small boat. The data was collected to a thesis funded by Walter and Andreé de Nottbeck Foundation.
Keyword(s):
Baltic Sea; CDOM; chlorophyll-a; Light; light-absorbing particles; light attenuation; light intensity; particulate matter; Secchi disk depth
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: 60.023312 * Median Longitude: 23.471754 * 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: 0.5 m * Maximum DEPTH, water: 0.5 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)
Pojo_bay_2  * Latitude: 60.089850 * Longitude: 23.545567 * Date/Time Start: 2021-05-04T15:10:00 * Date/Time End: 2021-05-27T10:55:00 * Elevation: -2.0 m * Location: Pohjanpitäjänlahti bay * Method/Device: Multiple investigations (MULT)
Pojo_bay_3  * Latitude: 60.054700 * Longitude: 23.512517 * Date/Time Start: 2021-05-04T13:35:00 * Date/Time End: 2021-05-27T11:20:00 * Elevation: -17.0 m * Location: Pohjanpitäjänlahti bay * Method/Device: Multiple investigations (MULT)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventPykäri, Janina
2 DATE/TIMEDate/TimePykäri, JaninaGeocode
3 LATITUDELatitudePykäri, JaninaGeocode
4 LONGITUDELongitudePykäri, JaninaGeocode
5 DEPTH, waterDepth watermPykäri, JaninaGeocode
6 Spectral slope of colored dissolved organic matter absorption, 275-295 nmS275-2951/nmPykäri, JaninaCalculated in R using the packages tidyverse and eemR
7 Spectral slope of colored dissolved organic matter absorption, 350-400 nmS350-4001/nmPykäri, JaninaCalculated in R using the packages tidyverse and eemR
8 Spectral slope of colored dissolved organic matter absorption, 300-650 nmS300-6501/nmPykäri, JaninaCalculated in R using the packages tidyverse and eemR
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
96 data points

Data

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

1 
Event		2 
Date/Time		3 
Latitude		4 
Longitude		5 
Depth water [m]		6 
S275-295 [1/nm]		7 
S350-400 [1/nm]		8 
S300-650 [1/nm]
Pojo_bay_1 2021-05-04T14:4060.0928523.5684000.50.0160530.0158680.016824
Pojo_bay_12021-05-06T14:3060.0928523.5684000.50.0161680.0161370.016989
Pojo_bay_12021-05-10T14:3060.0928523.5684000.50.0158700.0159950.016856
Pojo_bay_12021-05-13T11:4060.0928523.5684000.50.0160550.0162150.017008
Pojo_bay_12021-05-17T10:4560.0928523.5684000.50.0164670.0165340.017113
Pojo_bay_12021-05-20T14:2560.0928523.5684000.50.0161110.0161940.016915
Pojo_bay_12021-05-24T08:5560.0928523.5684000.50.0163260.0166080.016958
Pojo_bay_12021-05-27T10:1060.0928523.5684000.50.0157540.0163250.016655
Pojo_bay_2 2021-05-04T15:1060.0898523.5455670.50.0162640.0166940.017070
Pojo_bay_22021-05-06T15:1560.0898523.5455670.50.0161920.0161480.016944
Pojo_bay_22021-05-10T14:5560.0898523.5455670.50.0159830.0160130.016836
Pojo_bay_22021-05-13T12:0060.0898523.5455670.50.0160990.0162460.016881
Pojo_bay_22021-05-17T11:0060.0898523.5455670.50.0163530.0164240.016991
Pojo_bay_22021-05-20T14:4060.0898523.5455670.50.0163920.0168390.017052
Pojo_bay_22021-05-24T09:2560.0898523.5455670.50.0163790.0167660.017033
Pojo_bay_22021-05-27T10:5560.0898523.5455670.50.0158590.0163790.016749
Pojo_bay_3 2021-05-04T13:3560.0547023.5125170.50.0163350.0166310.017205
Pojo_bay_32021-05-06T15:4060.0547023.5125170.50.0162600.0162910.017153
Pojo_bay_32021-05-10T15:2060.0547023.5125170.50.0164690.0165550.017325
Pojo_bay_32021-05-13T12:2060.0547023.5125170.50.0163130.0163500.017044
Pojo_bay_32021-05-17T11:3060.0547023.5125170.50.0166730.0167340.017390
Pojo_bay_32021-05-20T15:0060.0547023.5125170.50.0166720.0170290.017238
Pojo_bay_32021-05-24T08:1060.0547023.5125170.50.0165130.0167920.017062
Pojo_bay_32021-05-27T11:2060.0547023.5125170.50.0166340.0165860.017165
Pojo_bay_4 2021-05-04T16:3559.8558523.2605330.50.0216620.0176970.020309
Pojo_bay_42021-05-06T17:1059.8558523.2605330.50.0221850.0180080.020634
Pojo_bay_42021-05-10T16:2559.8558523.2605330.50.0235120.0187080.022145
Pojo_bay_42021-05-13T14:2559.8558523.2605330.50.0224090.0179860.021125
Pojo_bay_42021-05-17T12:3059.8558523.2605330.50.0226300.0176680.021072
Pojo_bay_42021-05-20T12:5059.8558523.2605330.50.0235750.0185170.021725
Pojo_bay_42021-05-24T14:5559.8558523.2605330.50.0239870.0192930.022056
Pojo_bay_42021-05-27T12:5059.8558523.2605330.50.0232410.0183540.021181