Citation:

PANGAEA.930524

Name: Absorbance measurements of coloured dissolved organic matter during RV METEOR cruise M148/2 in the Benguela Upwelling System and Angola Gyre
Published: 2021-04-20
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Absorbance; Angola Gyre; Atlantic Ocean; CDOM; Optical water quality

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Abstract:

During RV METEOR cruise M148-2 in the Angola Gyre as well as the Benguela Upwelling System off the coast of Namibia water samples were taken from surface waters, deep chlorophyll maximum zone (DCM), oxygen depleted zone underneath the DCM and deeper waters. Here, we report the absorbance measurements of coloured dissolved organic matter (CDOM) that were conducted immediately after collection from the CTD rosette on board RV METEOR. The collected water samples were poured into 250 ml Schott glass bottles covered in aluminium foil creating dark containers. These glass bottles were left to reach room temperature for about 30 to 60 minutes. Filtration was completed using 25 mm Nuclepore syringe filters with pore sizes of 0.2 µm directly into a 10 cm quartz cuvette. This cuvette had been pre-rinsed three times with the sample before measurement (Garaba et al., 2014). A Shimadzu UV2700 spectrophotometer was used to determine the absorbance of the filtered samples over a wavelength range from 200 to 800 nm in 5 nm steps and Milli-Q was used as a reference. The provided dataset contains the raw absorption units averaged out of three measurements per sample.

Keyword(s):

Absorbance; Angola Gyre; Atlantic Ocean; CDOM; Optical water quality

Further details:

Garaba, Shungudzemwoyo Pascal; Voß, Daniela; Zielinski, Oliver (2014): Physical, Bio-Optical State and Correlations in North–Western European Shelf Seas. Remote Sensing, 6(6), 5042-5066, https://doi.org/10.3390/rs6065042

Coverage:

Median Latitude: -13.367674 * Median Longitude: 5.126121 * South-bound Latitude: -22.994070 * West-bound Longitude: -8.749180 * North-bound Latitude: -0.665470 * East-bound Longitude: 14.051080

Date/Time Start: 2018-07-02T14:20:00 * Date/Time End: 2018-07-12T09:00:00

Minimum Elevation: -5679.4 m * Maximum Elevation: -114.9 m

Event(s):

M148/2_202-1 * Latitude: -22.994083 * Longitude: 14.051117 * Date/Time: 2018-07-02T14:19:00 * Elevation: -140.3 m * Campaign: (EreBUS) * Basis: * Method/Device: (CTD-RO)

M148/2_203-1 * Latitude: -21.546300 * Longitude: 13.518767 * Date/Time: 2018-07-03T08:36:00 * Elevation: -114.9 m * Campaign: (EreBUS) * Basis: * Method/Device: (CTD-RO)

M148/2_204-1 * Latitude: -19.849233 * Longitude: 12.666283 * Date/Time: 2018-07-03T19:58:00 * Elevation: -123.5 m * Campaign: (EreBUS) * Basis: * Method/Device: (CTD-RO)

Comment:

We would like to thank RV Captain Detlef Korte and crew for supporting our research activities aboard RV METEOR during cruise M148/2. We are grateful of all the shore-based technicians, administrative personnel and scientists involved in the cruise. The German Federal Ministry of Education and Research (BMBF), Meteor Leitstelle, German National Science Foundation (DFG), Max Planck Society contributed towards the organization and funding of Meteor Expedition M148/2 EreBUS: Processes Controlling Greenhouse Gas Emissions from the Benguela Upwelling System.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Zielinski, Oliver
2	Campaign	Campaign		Zielinski, Oliver		Expedition
3	Station label	Station		Zielinski, Oliver		Station Nr.
4	Station label	Station		Zielinski, Oliver		Station ID
5	DATE/TIME	Date/Time		Zielinski, Oliver		Geocode
6	LATITUDE	Latitude		Zielinski, Oliver		Geocode
7	LONGITUDE	Longitude		Zielinski, Oliver		Geocode
8	ELEVATION	Elevation	m a.s.l.	Zielinski, Oliver		Geocode – Water depth
9	DEPTH, water	Depth water	m	Zielinski, Oliver		Geocode
10	Temperature, water	Temp	°C	Zielinski, Oliver
11	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	200 nm
12	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	205 nm
13	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	210 nm
14	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	215 nm
15	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	220 nm
16	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	225 nm
17	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	230 nm
18	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	235 nm
19	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	240 nm
20	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	245 nm
21	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	250 nm
22	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	255 nm
23	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	260 nm
24	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	265 nm
25	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	270 nm
26	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	275 nm
27	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	280 nm
28	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	285 nm
29	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	290 nm
30	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	295 nm
31	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	300 nm
32	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	305 nm
33	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	310 nm
34	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	315 nm
35	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	320 nm
36	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	325 nm
37	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	330 nm
38	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	335 nm
39	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	340 nm
40	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	345 nm
41	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	350 nm
42	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	355 nm
43	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	360 nm
44	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	365 nm
45	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	370 nm
46	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	375 nm
47	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	380 nm
48	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	385 nm
49	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	390 nm
50	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	395 nm
51	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	400 nm
52	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	405 nm
53	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	410 nm
54	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	415 nm
55	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	420 nm
56	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	425 nm
57	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	430 nm
58	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	435 nm
59	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	440 nm
60	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	445 nm
61	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	450 nm
62	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	455 nm
63	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	460 nm
64	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	465 nm
65	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	470 nm
66	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	475 nm
67	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	480 nm
68	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	485 nm
69	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	490 nm
70	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	495 nm
71	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	500 nm
72	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	505 nm
73	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	510 nm
74	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	515 nm
75	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	520 nm
76	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	525 nm
77	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	530 nm
78	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	535 nm
79	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	540 nm
80	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	545 nm
81	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	550 nm
82	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	555 nm
83	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	560 nm
84	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	565 nm
85	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	570 nm
86	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	575 nm
87	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	580 nm
88	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	585 nm
89	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	590 nm
90	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	595 nm
91	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	600 nm
92	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	605 nm
93	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	610 nm
94	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	615 nm
95	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	620 nm
96	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	625 nm
97	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	630 nm
98	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	635 nm
99	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	640 nm
100	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	645 nm
101	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	650 nm
102	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	655 nm
103	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	660 nm
104	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	665 nm
105	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	670 nm
106	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	675 nm
107	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	680 nm
108	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	685 nm
109	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	690 nm
110	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	695 nm
111	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	700 nm
112	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	705 nm
113	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	710 nm
114	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	715 nm
115	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	720 nm
116	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	725 nm
117	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	730 nm
118	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	735 nm
119	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	740 nm
120	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	745 nm
121	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	750 nm
122	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	755 nm
123	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	760 nm
124	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	765 nm
125	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	770 nm
126	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	775 nm
127	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	780 nm
128	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	785 nm
129	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	790 nm
130	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	795 nm
131	Absorbance	Absorbance	AU	Zielinski, Oliver	Shimadzu photometer UV 2700 Serial No. A11675400798LP	800 nm

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

8600 data points

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