Citation:

PANGAEA.973430

Name: Hyperspectral downward irradiance (Ed) observed during RV METEOR cruise M187
Published: 2024-12-13
License: https://creativecommons.org/licenses/by/4.0/
Keywords: hyperspectral; radiometric quantities; RV Meteor; South Atlantic

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Published: 2024-12-13 • DOI registered: 2025-01-11

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Abstract:

Hyperspectral radiometric quantities were observed at a 5-minute sampling interval in the South Atlantic Gyre and Benguela Upwelling System during a scientific field campaign aboard research vessel (RV) Meteor. The research cruise began on January 25, 2023 from Walvis Bay, Namibia, and ended on March 01, 2023 in Walvis Bay, Namibia. A radiometer setup with one TriOS RAMSES-ACC hyperspectral cosine irradiance meter to measure incoming solar irradiance (Ed) and two TriOS RAMSES-ARC hyperspectral radiance meters to measure total upward sea surface leaving radiance (Lsfc) at 45° nadir and sky-leaving radiance (Lsky) at 45° zenith angle, was installed using a custom-made frame at the bow of RV METEOR. Data logging of raw and calibrated radiometric quantities was automated using TriOS MSDA XE version 8.9.2 software. Further processing was done using R software (R Core Team (2023)). Processed data was interpolated to 1 nm spectral resolution using linear interpolation in R between 320 and 950 nm. Quality control involved retaining the Lsfc observations with lowest values (Garaba et al., 2012; Garaba et al., 2015) and corresponding Ed and Lsky observations. Raw data is available on request.

Keyword(s):

hyperspectral; radiometric quantities; RV Meteor; South Atlantic

Related to:

Garaba, Shungudzemwoyo Pascal; Schulz, Jan; Wernand, Marcel Robert; Zielinski, Oliver (2012): Sunglint Detection for Unmanned and Automated Platforms. Sensors, 12(9), 12545-12561, https://doi.org/10.3390/s120912545

Garaba, Shungudzemwoyo Pascal; Voß, Daniela; Wollschläger, Jochen; Zielinski, Oliver (2015): Modern approaches to shipborne ocean color remote sensing. Applied Optics, 54(12), 3602-3612, https://doi.org/10.1364/AO.54.003602

Funding:

Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. GPF-20-1/036: ReSEAt

European Commission (EC), grant/award no. 101041453: Ocean Glow

German Research Foundation (DFG), grant/award no. 417276871 : Exploring remote sensing of plastics in marine litter

Coverage:

Median Latitude: -25.696609 * Median Longitude: 8.814179 * South-bound Latitude: -27.339273 * West-bound Longitude: -5.000788 * North-bound Latitude: -22.839358 * East-bound Longitude: 14.497897

Date/Time Start: 2023-01-24T05:00:00 * Date/Time End: 2023-03-01T10:50:00

Event(s):

M187-track * Latitude Start: -22.941000 * Longitude Start: 14.503000 * Latitude End: -22.941000 * Longitude End: 14.503000 * Date/Time Start: 2023-01-25T00:00:00 * Date/Time End: 2023-03-04T00:00:00 * Campaign: (ReSEAt) * Basis: * Method/Device: Underway cruise track measurements (CT) * Comment: Walvis Bay - Walvis Bay

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DATE/TIME	Date/Time		Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS	Geocode
2	LATITUDE	Latitude		Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS	Geocode
3	LONGITUDE	Longitude		Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS	Geocode
4	Spectral irradiance, downward at 320 nm	Ed_320	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
5	Spectral irradiance, downward at 321 nm	Ed_321	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
6	Spectral irradiance, downward at 322 nm	Ed_322	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
7	Spectral irradiance, downward at 323 nm	Ed_323	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
8	Spectral irradiance, downward at 324 nm	Ed_324	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
9	Spectral irradiance, downward at 325 nm	Ed_325	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
10	Spectral irradiance, downward at 326 nm	Ed_326	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
11	Spectral irradiance, downward at 327 nm	Ed_327	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
12	Spectral irradiance, downward at 328 nm	Ed_328	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
13	Spectral irradiance, downward at 329 nm	Ed_329	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
14	Spectral irradiance, downward at 330 nm	Ed_330	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
15	Spectral irradiance, downward at 331 nm	Ed_331	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
16	Spectral irradiance, downward at 332 nm	Ed_332	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
17	Spectral irradiance, downward at 333 nm	Ed_333	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
18	Spectral irradiance, downward at 334 nm	Ed_334	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
19	Spectral irradiance, downward at 335 nm	Ed_335	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
20	Spectral irradiance, downward at 336 nm	Ed_336	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
21	Spectral irradiance, downward at 337 nm	Ed_337	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
22	Spectral irradiance, downward at 338 nm	Ed_338	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
23	Spectral irradiance, downward at 339 nm	Ed_339	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
24	Spectral irradiance, downward at 340 nm	Ed_340	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
25	Spectral irradiance, downward at 341 nm	Ed_341	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
26	Spectral irradiance, downward at 342 nm	Ed_342	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
27	Spectral irradiance, downward at 343 nm	Ed_343	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
28	Spectral irradiance, downward at 344 nm	Ed_344	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
29	Spectral irradiance, downward at 345 nm	Ed_345	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
30	Spectral irradiance, downward at 346 nm	Ed_346	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
31	Spectral irradiance, downward at 347 nm	Ed_347	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
32	Spectral irradiance, downward at 348 nm	Ed_348	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
33	Spectral irradiance, downward at 349 nm	Ed_349	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
34	Spectral irradiance, downward at 350 nm	Ed_350	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
35	Spectral irradiance, downward at 351 nm	Ed_351	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
36	Spectral irradiance, downward at 352 nm	Ed_352	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
37	Spectral irradiance, downward at 353 nm	Ed_353	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
38	Spectral irradiance, downward at 354 nm	Ed_354	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
39	Spectral irradiance, downward at 355 nm	Ed_355	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
40	Spectral irradiance, downward at 356 nm	Ed_356	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
41	Spectral irradiance, downward at 357 nm	Ed_357	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
42	Spectral irradiance, downward at 358 nm	Ed_358	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
43	Spectral irradiance, downward at 359 nm	Ed_359	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
44	Spectral irradiance, downward at 360 nm	Ed_360	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
45	Spectral irradiance, downward at 361 nm	Ed_361	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
46	Spectral irradiance, downward at 362 nm	Ed_362	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
47	Spectral irradiance, downward at 363 nm	Ed_363	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
48	Spectral irradiance, downward at 364 nm	Ed_364	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
49	Spectral irradiance, downward at 365 nm	Ed_365	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
50	Spectral irradiance, downward at 366 nm	Ed_366	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
51	Spectral irradiance, downward at 367 nm	Ed_367	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
52	Spectral irradiance, downward at 368 nm	Ed_368	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
53	Spectral irradiance, downward at 369 nm	Ed_369	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
54	Spectral irradiance, downward at 370 nm	Ed_370	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
55	Spectral irradiance, downward at 371 nm	Ed_371	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
56	Spectral irradiance, downward at 372 nm	Ed_372	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
57	Spectral irradiance, downward at 373 nm	Ed_373	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
58	Spectral irradiance, downward at 374 nm	Ed_374	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
59	Spectral irradiance, downward at 375 nm	Ed_375	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
60	Spectral irradiance, downward at 376 nm	Ed_376	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
61	Spectral irradiance, downward at 377 nm	Ed_377	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
62	Spectral irradiance, downward at 378 nm	Ed_378	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
63	Spectral irradiance, downward at 379 nm	Ed_379	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
64	Spectral irradiance, downward at 380 nm	Ed_380	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
65	Spectral irradiance, downward at 381 nm	Ed_381	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
66	Spectral irradiance, downward at 382 nm	Ed_382	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
67	Spectral irradiance, downward at 383 nm	Ed_383	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
68	Spectral irradiance, downward at 384 nm	Ed_384	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
69	Spectral irradiance, downward at 385 nm	Ed_385	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
70	Spectral irradiance, downward at 386 nm	Ed_386	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
71	Spectral irradiance, downward at 387 nm	Ed_387	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
72	Spectral irradiance, downward at 388 nm	Ed_388	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
73	Spectral irradiance, downward at 389 nm	Ed_389	W/m²/nm	Robinson, Tiera-Brandy	RAMSES-ACC hyperspectral cosine irradiance meter, TriOS
74	Spectral irradiance, downward at 390 nm	Ed_390	W/m²/nm	Robinson, Tiera-Brandy