Citation:

PANGAEA.907653

Name: Standard deviation of absorption coefficient spectra of non-algal particles during POLARSTERN cruise PS99
Published: 2019-10-18
Keywords: absorption; non-algal particles; optical density; particulate matter; Phytoplankton

Always quote citation above when using data! You can download the citation in several formats below.

Published: 2019-10-18 • DOI registered: 2019-11-16

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Replaced by:

Liu, Yangyang; Wiegmann, Sonja; Bracher, Astrid (2025): Standard deviation of absorption coefficient spectra of non-algal particles during POLARSTERN cruise PS99 (Version 2) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.986447

Abstract:

Absorption coefficients (abs) and optical density (OD) by total particles, phytoplankton and non-algal particles (NAP) were measured with standard deviation (sd) estimated on water samples collected from underway AC-S flow-through system outflow and CTD. Measurements were performed using QFT-ICAM (Röttgers et al., 2016) as described in Liu et al. (2018) and Liu et al. (2019).

1. About sampling:

a) underway samples were collected from unfiltered AC-S outflow (depth: 11m); CTD samples with 5-6 depths were collected on upcast.

b) vacuum pressure for filtration: maximum 200 hPa

c) samples were measured fresh (not preserved).

d) blank filters were collected by soaking them in 0.2um filtered seawater.

e) replicates were not collected.

2. About measurements:

a) Instrument: light source: UV-VIS lamp (CF-1000- HC lamp, Illumination Technology, USA); absorption meter: Quantitative Filter Technique - Integrating Cavity Absorption Meter (QFT-ICAM) (Röttgers et al., 2016) with 80 mm- diameter integrating sphere; detector: photodiode array spectrometer (AVASPEC-ULS2048-RS-USB2, Avantes, the Netherlands).

b) wavelength range of scan and resolution: 313.5-875.7 nm, 0.3 nm.

c) slit band width: 2 nm.

d) sample filters were bleached with 10% sodium hypochlorite (NaClO) solution for the OD measurement of NAP.

e) samples were measured for four times and bleached samples were measured twice.

f) dark current and blank filters were measured and subtracted.

3. About data analysis:

a) interpolated wavelength range and resolution: 320-844 nm, 2nm.

b) wavelength range for fluorescence correction: 670:800 nm.

c) diameter of sample patch on GF/F filter: 2.133 cm.

d) pathlength amplification factor (beta correction factor): 4.06 (Röttgers et al., 2016).

e) no scattering correction for total particle absorption is applied; NAP absorption was adjusted with an offset in the range of 710-750 nm so that the median value of NAP absorption equals the median value of in total particle absorption in this spectral range. This adjustment is based on the assumption that phytoplankton pigments do not absorb in near-infrared (Neeley et al., 2018). This adjustment was not applied to NAP OD data.

f) NAP absorption data from underway samples collected during 2016-06-17T21:20, 2016-06-18T00:26, 2016-06-18T03:19, 2016-06-18T06:38, 2016-06-15T12:12, and 2016-06-15T15:09 were missing. To calculate the corresponding phytoplankton absorption, the missing NAP data were taken the same as the ones from 2016-06-17T18:13, 2016-06-18T18:09, 2016-06-18T18:09, 2016-06-18T18:09, 2016-06-15T09:15, and 2016-06-15T09:15, respectively. However, this was not applied to NAP OD data.

Keyword(s):

absorption; non-algal particles; optical density; particulate matter; Phytoplankton

Related to:

Liu, Yangyang; Boss, Emmanuel; Chase, Alison P; Xi, Hongyan; Zhang, Xiaodong; Röttgers, Rüdiger; Pan, Yanqun; Bracher, Astrid (2019): Retrieval of phytoplankton pigments from underway spectrophotometry in the Fram Strait. Remote Sensing, 11(3), 318, https://doi.org/10.3390/rs11030318

Liu, Yangyang; Röttgers, Rüdiger; Ramírez-Pérez, Marta; Dinter, Tilman; Steinmetz, Francois; Nöthig, Eva-Maria; Hellmann, Sebastian; Wiegmann, Sonja; Bracher, Astrid (2018): Underway spectrophotometry in the Fram Strait (European Arctic Ocean): a highly resolved chlorophyll a data source for complementing satellite ocean color. Optics Express, 26(14), A678-A696, https://doi.org/10.1364/OE.26.00A678

Neeley, Aimee; Mannino, Antonio; Boss, Emmanuel; D'Sa, Eurico J; Freeman, Scott; Fry, Ed; Mueller, James L; Pegau, Scott; Reynolds, Rick A; Roesler, Collin S; Röttgers, Rüdiger; Stramski, Dariusz; Twardowski, Michael S (2018): Ocean Optics and Biogeochemistry Protocols for Satellite Ocean Colour Sensor Validation; Volume 1.0. Inherent Optical Property Measurements and Protocols: Absorption Coefficient. International Ocean Colour Coordinating Group (IOCCG), https://doi.org/10.25607/OBP-119

Röttgers, Rüdiger; Doxaran, David; Dupouy, Cécile (2016): Quantitative filter technique measurements of spectral light absorption by aquatic particles using a portable integrating cavity absorption meter (QFT-ICAM). Optics Express, 24(2), A1, https://doi.org/10.1364/OE.24.0000A1

Project(s):

Arctic Amplification (AC3)

FRontiers in Arctic marine Monitoring (FRAM)

Funding:

German Research Foundation (DFG), grant/award no. 268020496 : TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms

Coverage:

Median Latitude: 77.143306 * Median Longitude: 6.096293 * South-bound Latitude: 56.769550 * West-bound Longitude: -5.409330 * North-bound Latitude: 80.002133 * East-bound Longitude: 18.236670

Date/Time Start: 2016-06-14T15:12:00 * Date/Time End: 2016-07-13T06:02:00

Minimum DEPTH, water: 5.00 m * Maximum DEPTH, water: 100.00 m

Event(s):

PS99.1-track * Latitude Start: 53.563960 * Longitude Start: 8.548130 * Latitude End: 78.300000 * Longitude End: 15.650000 * Date/Time Start: 2016-06-13T00:00:00 * Date/Time End: 2016-06-22T00:00:00 * Campaign: (ARK-XXX/1.1) * Basis: * Method/Device: Underway cruise track measurements (CT)

PS99.2-track * Latitude Start: 78.300000 * Longitude Start: 15.650000 * Latitude End: 69.678000 * Longitude End: 18.989800 * Date/Time Start: 2016-06-23T00:00:00 * Date/Time End: 2016-07-16T00:00:00 * Campaign: (ARK-XXX/1.2) * Basis: * Method/Device: Underway cruise track measurements (CT)

PS99/002-1 * Latitude: 74.858670 * Longitude: 16.098500 * Date/Time: 2016-06-19T05:22:00 * Elevation: -375.8 m * Location: Norwegian Sea * Campaign: (ARK-XXX/1.1) * Basis: * Method/Device: (CTD-RO)

Parameter(s):

#	Name	Short Name	Unit	Comment
1	Event label	Event
2	DATE/TIME	Date/Time		Geocode
3	Sample ID	Sample ID
4	LATITUDE	Latitude		Geocode
5	LONGITUDE	Longitude		Geocode
6	DEPTH, water	Depth water	m	Geocode
7	Sample volume	Samp vol	l	filtration volume
8	Absorption coefficient, standard deviation	ac std dev	±	350 nm
9	Absorption coefficient, standard deviation	ac std dev	±	352 nm
10	Absorption coefficient, standard deviation	ac std dev	±	354 nm
11	Absorption coefficient, standard deviation	ac std dev	±	356 nm
12	Absorption coefficient, standard deviation	ac std dev	±	358 nm
13	Absorption coefficient, standard deviation	ac std dev	±	360 nm
14	Absorption coefficient, standard deviation	ac std dev	±	362 nm
15	Absorption coefficient, standard deviation	ac std dev	±	364 nm
16	Absorption coefficient, standard deviation	ac std dev	±	366 nm
17	Absorption coefficient, standard deviation	ac std dev	±	368 nm
18	Absorption coefficient, standard deviation	ac std dev	±	370 nm
19	Absorption coefficient, standard deviation	ac std dev	±	372 nm
20	Absorption coefficient, standard deviation	ac std dev	±	374 nm
21	Absorption coefficient, standard deviation	ac std dev	±	376 nm
22	Absorption coefficient, standard deviation	ac std dev	±	378 nm
23	Absorption coefficient, standard deviation	ac std dev	±	380 nm
24	Absorption coefficient, standard deviation	ac std dev	±	382 nm
25	Absorption coefficient, standard deviation	ac std dev	±	384 nm
26	Absorption coefficient, standard deviation	ac std dev	±	386 nm
27	Absorption coefficient, standard deviation	ac std dev	±	388 nm
28	Absorption coefficient, standard deviation	ac std dev	±	390 nm
29	Absorption coefficient, standard deviation	ac std dev	±	392 nm
30	Absorption coefficient, standard deviation	ac std dev	±	394 nm
31	Absorption coefficient, standard deviation	ac std dev	±	396 nm
32	Absorption coefficient, standard deviation	ac std dev	±	398 nm
33	Absorption coefficient, standard deviation	ac std dev	±	400 nm
34	Absorption coefficient, standard deviation	ac std dev	±	402 nm
35	Absorption coefficient, standard deviation	ac std dev	±	404 nm
36	Absorption coefficient, standard deviation	ac std dev	±	406 nm
37	Absorption coefficient, standard deviation	ac std dev	±	408 nm
38	Absorption coefficient, standard deviation	ac std dev	±	410 nm
39	Absorption coefficient, standard deviation	ac std dev	±	412 nm
40	Absorption coefficient, standard deviation	ac std dev	±	414 nm
41	Absorption coefficient, standard deviation	ac std dev	±	416 nm
42	Absorption coefficient, standard deviation	ac std dev	±	418 nm
43	Absorption coefficient, standard deviation	ac std dev	±	420 nm
44	Absorption coefficient, standard deviation	ac std dev	±	422 nm
45	Absorption coefficient, standard deviation	ac std dev	±	424 nm
46	Absorption coefficient, standard deviation	ac std dev	±	426 nm
47	Absorption coefficient, standard deviation	ac std dev	±	428 nm
48	Absorption coefficient, standard deviation	ac std dev	±	430 nm
49	Absorption coefficient, standard deviation	ac std dev	±	432 nm
50	Absorption coefficient, standard deviation	ac std dev	±	434 nm
51	Absorption coefficient, standard deviation	ac std dev	±	436 nm
52	Absorption coefficient, standard deviation	ac std dev	±	438 nm
53	Absorption coefficient, standard deviation	ac std dev	±	440 nm
54	Absorption coefficient, standard deviation	ac std dev	±	442 nm
55	Absorption coefficient, standard deviation	ac std dev	±	444 nm
56	Absorption coefficient, standard deviation	ac std dev	±	446 nm
57	Absorption coefficient, standard deviation	ac std dev	±	448 nm
58	Absorption coefficient, standard deviation	ac std dev	±	450 nm
59	Absorption coefficient, standard deviation	ac std dev	±	452 nm
60	Absorption coefficient, standard deviation	ac std dev	±	454 nm
61	Absorption coefficient, standard deviation	ac std dev	±	456 nm
62	Absorption coefficient, standard deviation	ac std dev	±	458 nm
63	Absorption coefficient, standard deviation	ac std dev	±	460 nm
64	Absorption coefficient, standard deviation	ac std dev	±	462 nm
65	Absorption coefficient, standard deviation	ac std dev	±	464 nm
66	Absorption coefficient, standard deviation	ac std dev	±	466 nm
67	Absorption coefficient, standard deviation	ac std dev	±	468 nm
68	Absorption coefficient, standard deviation	ac std dev	±	470 nm
69	Absorption coefficient, standard deviation	ac std dev	±	472 nm
70	Absorption coefficient, standard deviation	ac std dev	±	474 nm
71	Absorption coefficient, standard deviation	ac std dev	±	476 nm
72	Absorption coefficient, standard deviation	ac std dev	±	478 nm
73	Absorption coefficient, standard deviation	ac std dev	±	480 nm
74	Absorption coefficient, standard deviation	ac std dev	±	482 nm
75	Absorption coefficient, standard deviation	ac std dev	±	484 nm
76	Absorption coefficient, standard deviation	ac std dev	±	486 nm
77	Absorption coefficient, standard deviation	ac std dev	±	488 nm
78	Absorption coefficient, standard deviation	ac std dev	±	490 nm
79	Absorption coefficient, standard deviation	ac std dev	±	492 nm
80	Absorption coefficient, standard deviation	ac std dev	±	494 nm
81	Absorption coefficient, standard deviation	ac std dev	±	496 nm
82	Absorption coefficient, standard deviation	ac std dev	±	498 nm
83	Absorption coefficient, standard deviation	ac std dev	±	500 nm
84	Absorption coefficient, standard deviation	ac std dev	±	502 nm
85	Absorption coefficient, standard deviation	ac std dev	±	504 nm
86	Absorption coefficient, standard deviation	ac std dev	±	506 nm
87	Absorption coefficient, standard deviation	ac std dev	±	508 nm
88	Absorption coefficient, standard deviation	ac std dev	±	510 nm
89	Absorption coefficient, standard deviation	ac std dev	±	512 nm
90	Absorption coefficient, standard deviation	ac std dev	±	514 nm
91	Absorption coefficient, standard deviation	ac std dev	±	516 nm
92	Absorption coefficient, standard deviation	ac std dev	±	518 nm
93	Absorption coefficient, standard deviation	ac std dev	±	520 nm
94	Absorption coefficient, standard deviation	ac std dev	±	522 nm
95	Absorption coefficient, standard deviation	ac std dev	±	524 nm
96	Absorption coefficient, standard deviation	ac std dev	±	526 nm
97	Absorption coefficient, standard deviation	ac std dev	±	528 nm
98	Absorption coefficient, standard deviation	ac std dev	±	530 nm
99	Absorption coefficient, standard deviation	ac std dev	±	532 nm
100	Absorption coefficient, standard deviation	ac std dev	±	534 nm
101	Absorption coefficient, standard deviation	ac std dev	±	536 nm
102	Absorption coefficient, standard deviation	ac std dev	±	538 nm
103	Absorption coefficient, standard deviation	ac std dev	±	540 nm
104	Absorption coefficient, standard deviation	ac std dev	±	542 nm
105	Absorption coefficient, standard deviation	ac std dev	±	544 nm
106	Absorption coefficient, standard deviation	ac std dev	±	546 nm
107	Absorption coefficient, standard deviation	ac std dev	±	548 nm
108	Absorption coefficient, standard deviation	ac std dev	±	550 nm
109	Absorption coefficient, standard deviation	ac std dev	±	552 nm
110	Absorption coefficient, standard deviation	ac std dev	±	554 nm
111	Absorption coefficient, standard deviation	ac std dev	±	556 nm
112	Absorption coefficient, standard deviation	ac std dev	±	558 nm
113	Absorption coefficient, standard deviation	ac std dev	±	560 nm
114	Absorption coefficient, standard deviation	ac std dev	±	562 nm
115	Absorption coefficient, standard deviation	ac std dev	±	564 nm
116	Absorption coefficient, standard deviation	ac std dev	±	566 nm
117	Absorption coefficient, standard deviation	ac std dev	±	568 nm
118	Absorption coefficient, standard deviation	ac std dev	±	570 nm
119	Absorption coefficient, standard deviation	ac std dev	±	572 nm
120	Absorption coefficient, standard deviation	ac std dev	±	574 nm
121	Absorption coefficient, standard deviation	ac std dev	±	576 nm
122	Absorption coefficient, standard deviation	ac std dev	±	578 nm
123	Absorption coefficient, standard deviation	ac std dev	±	580 nm
124	Absorption coefficient, standard deviation	ac std dev	±	582 nm
125	Absorption coefficient, standard deviation	ac std dev	±	584 nm
126	Absorption coefficient, standard deviation	ac std dev	±	586 nm
127	Absorption coefficient, standard deviation	ac std dev	±	588 nm
128	Absorption coefficient, standard deviation	ac std dev	±	590 nm
129	Absorption coefficient, standard deviation	ac std dev	±	592 nm
130	Absorption coefficient, standard deviation	ac std dev	±	594 nm
131	Absorption coefficient, standard deviation	ac std dev	±	596 nm
132	Absorption coefficient, standard deviation	ac std dev	±	598 nm
133	Absorption coefficient, standard deviation	ac std dev	±	600 nm
134	Absorption coefficient, standard deviation	ac std dev	±	602 nm
135	Absorption coefficient, standard deviation	ac std dev	±	604 nm
136	Absorption coefficient, standard deviation	ac std dev	±	606 nm
137	Absorption coefficient, standard deviation	ac std dev	±	608 nm
138	Absorption coefficient, standard deviation	ac std dev	±	610 nm
139	Absorption coefficient, standard deviation	ac std dev	±	612 nm
140	Absorption coefficient, standard deviation	ac std dev	±	614 nm
141	Absorption coefficient, standard deviation	ac std dev	±	616 nm
142	Absorption coefficient, standard deviation	ac std dev	±	618 nm
143	Absorption coefficient, standard deviation	ac std dev	±	620 nm
144	Absorption coefficient, standard deviation	ac std dev	±	622 nm
145	Absorption coefficient, standard deviation	ac std dev	±	624 nm
146	Absorption coefficient, standard deviation	ac std dev	±	626 nm
147	Absorption coefficient, standard deviation	ac std dev	±	628 nm
148	Absorption coefficient, standard deviation	ac std dev	±	630 nm
149	Absorption coefficient, standard deviation	ac std dev	±	632 nm
150	Absorption coefficient, standard deviation	ac std dev	±	634 nm
151	Absorption coefficient, standard deviation	ac std dev	±	636 nm
152	Absorption coefficient, standard deviation	ac std dev	±	638 nm
153	Absorption coefficient, standard deviation	ac std dev	±	640 nm
154	Absorption coefficient, standard deviation	ac std dev	±	642 nm
155	Absorption coefficient, standard deviation	ac std dev	±	644 nm
156	Absorption coefficient, standard deviation	ac std dev	±	646 nm
157	Absorption coefficient, standard deviation	ac std dev	±	648 nm
158	Absorption coefficient, standard deviation	ac std dev	±	650 nm
159	Absorption coefficient, standard deviation	ac std dev	±	652 nm
160	Absorption coefficient, standard deviation	ac std dev	±	654 nm
161	Absorption coefficient, standard deviation	ac std dev	±	656 nm
162	Absorption coefficient, standard deviation	ac std dev	±	658 nm
163	Absorption coefficient, standard deviation	ac std dev	±	660 nm
164	Absorption coefficient, standard deviation	ac std dev	±	662 nm
165	Absorption coefficient, standard deviation	ac std dev	±	664 nm
166	Absorption coefficient, standard deviation	ac std dev	±	666 nm
167	Absorption coefficient, standard deviation	ac std dev	±	668 nm
168	Absorption coefficient, standard deviation	ac std dev	±	670 nm
169	Absorption coefficient, standard deviation	ac std dev	±	672 nm
170	Absorption coefficient, standard deviation	ac std dev	±	674 nm
171	Absorption coefficient, standard deviation	ac std dev	±	676 nm
172	Absorption coefficient, standard deviation	ac std dev	±	678 nm
173	Absorption coefficient, standard deviation	ac std dev	±	680 nm
174	Absorption coefficient, standard deviation	ac std dev	±	682 nm
175	Absorption coefficient, standard deviation	ac std dev	±	684 nm
176	Absorption coefficient, standard deviation	ac std dev	±	686 nm
177	Absorption coefficient, standard deviation	ac std dev	±	688 nm
178	Absorption coefficient, standard deviation	ac std dev	±	690 nm
179	Absorption coefficient, standard deviation	ac std dev	±	692 nm
180	Absorption coefficient, standard deviation	ac std dev	±	694 nm
181	Absorption coefficient, standard deviation	ac std dev	±	696 nm
182	Absorption coefficient, standard deviation	ac std dev	±	698 nm
183	Absorption coefficient, standard deviation	ac std dev	±	700 nm
184	Absorption coefficient, standard deviation	ac std dev	±	702 nm
185	Absorption coefficient, standard deviation	ac std dev	±	704 nm
186	Absorption coefficient, standard deviation	ac std dev	±	706 nm
187	Absorption coefficient, standard deviation	ac std dev	±	708 nm
188	Absorption coefficient, standard deviation	ac std dev	±	710 nm
189	Absorption coefficient, standard deviation	ac std dev	±	712 nm
190	Absorption coefficient, standard deviation	ac std dev	±	714 nm
191	Absorption coefficient, standard deviation	ac std dev	±	716 nm
192	Absorption coefficient, standard deviation	ac std dev	±	718 nm
193	Absorption coefficient, standard deviation	ac std dev	±	720 nm
194	Absorption coefficient, standard deviation	ac std dev	±	722 nm
195	Absorption coefficient, standard deviation	ac std dev	±	724 nm
196	Absorption coefficient, standard deviation	ac std dev	±	726 nm
197	Absorption coefficient, standard deviation	ac std dev	±	728 nm
198	Absorption coefficient, standard deviation	ac std dev	±	730 nm
199	Absorption coefficient, standard deviation	ac std dev	±	732 nm
200	Absorption coefficient, standard deviation	ac std dev	±	734 nm
201	Absorption coefficient, standard deviation	ac std dev	±	736 nm
202	Absorption coefficient, standard deviation	ac std dev	±	738 nm
203	Absorption coefficient, standard deviation	ac std dev	±	740 nm
204	Absorption coefficient, standard deviation	ac std dev	±	742 nm
205	Absorption coefficient, standard deviation	ac std dev	±	744 nm
206	Absorption coefficient, standard deviation	ac std dev	±	746 nm
207	Absorption coefficient, standard deviation	ac std dev	±	748 nm
208	Absorption coefficient, standard deviation	ac std dev	±	750 nm
209	Absorption coefficient, standard deviation	ac std dev	±	752 nm
210	Absorption coefficient, standard deviation	ac std dev	±	754 nm
211	Absorption coefficient, standard deviation	ac std dev	±	756 nm
212	Absorption coefficient, standard deviation	ac std dev	±	758 nm
213	Absorption coefficient, standard deviation	ac std dev	±	760 nm
214	Absorption coefficient, standard deviation	ac std dev	±	762 nm
215	Absorption coefficient, standard deviation	ac std dev	±	764 nm
216	Absorption coefficient, standard deviation	ac std dev	±	766 nm
217	Absorption coefficient, standard deviation	ac std dev	±	768 nm
218	Absorption coefficient, standard deviation	ac std dev	±	770 nm
219	Absorption coefficient, standard deviation	ac std dev	±	772 nm
220	Absorption coefficient, standard deviation	ac std dev	±	774 nm
221	Absorption coefficient, standard deviation	ac std dev	±	776 nm
222	Absorption coefficient, standard deviation	ac std dev	±	778 nm
223	Absorption coefficient, standard deviation	ac std dev	±	780 nm
224	Absorption coefficient, standard deviation	ac std dev	±	782 nm
225	Absorption coefficient, standard deviation	ac std dev	±	784 nm
226	Absorption coefficient, standard deviation	ac std dev	±	786 nm
227	Absorption coefficient, standard deviation	ac std dev	±	788 nm
228	Absorption coefficient, standard deviation	ac std dev	±	790 nm
229	Absorption coefficient, standard deviation	ac std dev	±	792 nm
230	Absorption coefficient, standard deviation	ac std dev	±	794 nm
231	Absorption coefficient, standard deviation	ac std dev	±	796 nm
232	Absorption coefficient, standard deviation	ac std dev	±	798 nm
233	Absorption coefficient, standard deviation	ac std dev	±	800 nm)

Change history:

2025-08-11T08:27:25 – Lat/long for UW35, UW36 and UW37 was corrected, also: Date/time corrected: for UW35 from 2016-06-19T00:15 to 2016-06-18T21:12, for UW36 from 2016-06-19T03:16 to 2016-06-19T00:15, for UW37 from 2016-06-19T06:15 to 2016-06-19T03:16

2025-09-29T11:24:34 – More errors detected, new version was uploaded, do not use this version!

License:

Licensing unknown: Please contact principal investigator/authors to gain access and request licensing terms (UNKNOWN)

Size:

72290 data points

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