Description: The effects of a phytoplankton bloom and photobleaching on colored dissolved organic matter (CDOM) in the sea-surface microlayer (SML) and the underlying water (ULW) were studied in a month-long mesocosm study, in May and June of 2023, at the Institute for Chemistry and Biology of the Marine Environment (ICBM) in Wilhelmshaven, Germany. The mesocosm study was conducted by the DFG research group BASS (Biogeochemical processes and Air–sea exchange in the Sea-Surface microlayer, Bibi et al., 2025) in the Sea Surface Facility (SURF) of the ICBM. The facility contains an 8 m × 1.5 m × 0.8 m large outdoor basin with a retractable roof, which was closed at night and during rain events. The basin was filled with North Sea water from the adjacent Jade Bay. Homogeneity of the ULW in the basin was achieved by constant mixing of the water column. The daily SML and ULW samples were collected alternating in the morning, about 1 h after sunrise, and in the afternoon, about 10 h after sunrise. The alternation of sampling times intended to capture a potential effect of sun-exposure duration on DOM transformations and elucidated the day and night variability of the layers. The SML was collected via glass plate sampling (Cunliffe and Wurl, 2014). The ULW was sampled via a submerged tube and a connected syringe suction system in 0.4 m depth. The removed sample volume was refilled with Jade Bay water every day. SML and ULW samples were filtered through pre-flushed 0.7 µm Whatman GF/F and 0.2 nucleopore filters into brown bottles and were stored dark and at 4 °C until measurement within weeks of the study. The brown bottles were previously combusted at 500 °C. CDOM was measured with three liquid waveguide capillary cells (LWCC, WPI, USA) of different pathlengths (10 cm, 50 cm, 250 cm) to increase the measurement sensitivity following the protocols of Röttgers et al. (2024) using a spectral detector (Avantes, Netherlands) for a total spectral range from 230 to 750 nm. A sodium chloride (NaCl) solution was used for the salinity correction. The blank-corrected absorbance spectra were then converted into Napierian absorption coefficients (Bricaud et al., 1981).
Global identifier:
Doi(
"10.1594/PANGAEA.987974",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"Absorption coefficient, colored dissolved organic matter at 230 nm",
"Absorption coefficient, colored dissolved organic matter at 232 nm",
"Absorption coefficient, colored dissolved organic matter at 234 nm",
"Absorption coefficient, colored dissolved organic matter at 236 nm",
"Absorption coefficient, colored dissolved organic matter at 238 nm",
"Absorption coefficient, colored dissolved organic matter at 240 nm",
"Absorption coefficient, colored dissolved organic matter at 242 nm",
"Absorption coefficient, colored dissolved organic matter at 244 nm",
"Absorption coefficient, colored dissolved organic matter at 246 nm",
"Absorption coefficient, colored dissolved organic matter at 248 nm",
"Absorption coefficient, colored dissolved organic matter at 250 nm",
"Absorption coefficient, colored dissolved organic matter at 252 nm",
"Absorption coefficient, colored dissolved organic matter at 254 nm",
"Absorption coefficient, colored dissolved organic matter at 256 nm",
"Absorption coefficient, colored dissolved organic matter at 258 nm",
"Absorption coefficient, colored dissolved organic matter at 260 nm",
"Absorption coefficient, colored dissolved organic matter at 262 nm",
"Absorption coefficient, colored dissolved organic matter at 264 nm",
"Absorption coefficient, colored dissolved organic matter at 266 nm",
"Absorption coefficient, colored dissolved organic matter at 268 nm",
"Absorption coefficient, colored dissolved organic matter at 270 nm",
"Absorption coefficient, colored dissolved organic matter at 272 nm",
"Absorption coefficient, colored dissolved organic matter at 274 nm",
"Absorption coefficient, colored dissolved organic matter at 276 nm",
"Absorption coefficient, colored dissolved organic matter at 278 nm",
"Absorption coefficient, colored dissolved organic matter at 280 nm",
"Absorption coefficient, colored dissolved organic matter at 282 nm",
"Absorption coefficient, colored dissolved organic matter at 284 nm",
"Absorption coefficient, colored dissolved organic matter at 286 nm",
"Absorption coefficient, colored dissolved organic matter at 288 nm",
"Absorption coefficient, colored dissolved organic matter at 290 nm",
"Absorption coefficient, colored dissolved organic matter at 292 nm",
"Absorption coefficient, colored dissolved organic matter at 294 nm",
"Absorption coefficient, colored dissolved organic matter at 296 nm",
"Absorption coefficient, colored dissolved organic matter at 298 nm",
"Absorption coefficient, colored dissolved organic matter at 300 nm",
"Absorption coefficient, colored dissolved organic matter at 302 nm",
"Absorption coefficient, colored dissolved organic matter at 304 nm",
"Absorption coefficient, colored dissolved organic matter at 306 nm",
"Absorption coefficient, colored dissolved organic matter at 308 nm",
"Absorption coefficient, colored dissolved organic matter at 310 nm",
"Absorption coefficient, colored dissolved organic matter at 312 nm",
"Absorption coefficient, colored dissolved organic matter at 314 nm",
"Absorption coefficient, colored dissolved organic matter at 316 nm",
"Absorption coefficient, colored dissolved organic matter at 318 nm",
"Absorption coefficient, colored dissolved organic matter at 320 nm",
"Absorption coefficient, colored dissolved organic matter at 322 nm",
"Absorption coefficient, colored dissolved organic matter at 324 nm",
"Absorption coefficient, colored dissolved organic matter at 326 nm",
"Absorption coefficient, colored dissolved organic matter at 328 nm",
"Absorption coefficient, colored dissolved organic matter at 330 nm",
"Absorption coefficient, colored dissolved organic matter at 332 nm",
"Absorption coefficient, colored dissolved organic matter at 334 nm",
"Absorption coefficient, colored dissolved organic matter at 336 nm",
"Absorption coefficient, colored dissolved organic matter at 338 nm",
"Absorption coefficient, colored dissolved organic matter at 340 nm",
"Absorption coefficient, colored dissolved organic matter at 342 nm",
"Absorption coefficient, colored dissolved organic matter at 344 nm",
"Absorption coefficient, colored dissolved organic matter at 346 nm",
"Absorption coefficient, colored dissolved organic matter at 348 nm",
"Absorption coefficient, colored dissolved organic matter at 350 nm",
"Absorption coefficient, colored dissolved organic matter at 352 nm",
"Absorption coefficient, colored dissolved organic matter at 354 nm",
"Absorption coefficient, colored dissolved organic matter at 356 nm",
"Absorption coefficient, colored dissolved organic matter at 358 nm",
"Absorption coefficient, colored dissolved organic matter at 360 nm",
"Absorption coefficient, colored dissolved organic matter at 362 nm",
"Absorption coefficient, colored dissolved organic matter at 364 nm",
"Absorption coefficient, colored dissolved organic matter at 366 nm",
"Absorption coefficient, colored dissolved organic matter at 368 nm",
"Absorption coefficient, colored dissolved organic matter at 370 nm",
"Absorption coefficient, colored dissolved organic matter at 372 nm",
"Absorption coefficient, colored dissolved organic matter at 374 nm",
"Absorption coefficient, colored dissolved organic matter at 376 nm",
"Absorption coefficient, colored dissolved organic matter at 378 nm",
"Absorption coefficient, colored dissolved organic matter at 380 nm",
"Absorption coefficient, colored dissolved organic matter at 382 nm",
"Absorption coefficient, colored dissolved organic matter at 384 nm",
"Absorption coefficient, colored dissolved organic matter at 386 nm",
"Absorption coefficient, colored dissolved organic matter at 388 nm",
"Absorption coefficient, colored dissolved organic matter at 390 nm",
"Absorption coefficient, colored dissolved organic matter at 392 nm",
"Absorption coefficient, colored dissolved organic matter at 394 nm",
"Absorption coefficient, colored dissolved organic matter at 396 nm",
"Absorption coefficient, colored dissolved organic matter at 398 nm",
"Absorption coefficient, colored dissolved organic matter at 400 nm",
"Absorption coefficient, colored dissolved organic matter at 402 nm",
"Absorption coefficient, colored dissolved organic matter at 404 nm",
"Absorption coefficient, colored dissolved organic matter at 406 nm",
"Absorption coefficient, colored dissolved organic matter at 408 nm",
"Absorption coefficient, colored dissolved organic matter at 410 nm",
"Absorption coefficient, colored dissolved organic matter at 412 nm",
"Absorption coefficient, colored dissolved organic matter at 414 nm",
"Absorption coefficient, colored dissolved organic matter at 416 nm",
"Absorption coefficient, colored dissolved organic matter at 418 nm",
"Absorption coefficient, colored dissolved organic matter at 420 nm",
"Absorption coefficient, colored dissolved organic matter at 422 nm",
"Absorption coefficient, colored dissolved organic matter at 424 nm",
"Absorption coefficient, colored dissolved organic matter at 426 nm",
"Absorption coefficient, colored dissolved organic matter at 428 nm",
"Absorption coefficient, colored dissolved organic matter at 430 nm",
"Absorption coefficient, colored dissolved organic matter at 432 nm",
"Absorption coefficient, colored dissolved organic matter at 434 nm",
"Absorption coefficient, colored dissolved organic matter at 436 nm",
"Absorption coefficient, colored dissolved organic matter at 438 nm",
"Absorption coefficient, colored dissolved organic matter at 440 nm",
"Absorption coefficient, colored dissolved organic matter at 442 nm",
"Absorption coefficient, colored dissolved organic matter at 444 nm",
"Absorption coefficient, colored dissolved organic matter at 446 nm",
"Absorption coefficient, colored dissolved organic matter at 448 nm",
"Absorption coefficient, colored dissolved organic matter at 450 nm",
"Absorption coefficient, colored dissolved organic matter at 452 nm",
"Absorption coefficient, colored dissolved organic matter at 454 nm",
"Absorption coefficient, colored dissolved organic matter at 456 nm",
"Absorption coefficient, colored dissolved organic matter at 458 nm",
"Absorption coefficient, colored dissolved organic matter at 460 nm",
"Absorption coefficient, colored dissolved organic matter at 462 nm",
"Absorption coefficient, colored dissolved organic matter at 464 nm",
"Absorption coefficient, colored dissolved organic matter at 466 nm",
"Absorption coefficient, colored dissolved organic matter at 468 nm",
"Absorption coefficient, colored dissolved organic matter at 470 nm",
"Absorption coefficient, colored dissolved organic matter at 472 nm",
"Absorption coefficient, colored dissolved organic matter at 474 nm",
"Absorption coefficient, colored dissolved organic matter at 476 nm",
"Absorption coefficient, colored dissolved organic matter at 478 nm",
"Absorption coefficient, colored dissolved organic matter at 480 nm",
"Absorption coefficient, colored dissolved organic matter at 482 nm",
"Absorption coefficient, colored dissolved organic matter at 484 nm",
"Absorption coefficient, colored dissolved organic matter at 486 nm",
"Absorption coefficient, colored dissolved organic matter at 488 nm",
"Absorption coefficient, colored dissolved organic matter at 490 nm",
"Absorption coefficient, colored dissolved organic matter at 492 nm",
"Absorption coefficient, colored dissolved organic matter at 494 nm",
"Absorption coefficient, colored dissolved organic matter at 496 nm",
"Absorption coefficient, colored dissolved organic matter at 498 nm",
"Absorption coefficient, colored dissolved organic matter at 500 nm",
"Absorption coefficient, colored dissolved organic matter at 502 nm",
"Absorption coefficient, colored dissolved organic matter at 504 nm",
"Absorption coefficient, colored dissolved organic matter at 506 nm",
"Absorption coefficient, colored dissolved organic matter at 508 nm",
"Absorption coefficient, colored dissolved organic matter at 510 nm",
"Absorption coefficient, colored dissolved organic matter at 512 nm",
"Absorption coefficient, colored dissolved organic matter at 514 nm",
"Absorption coefficient, colored dissolved organic matter at 516 nm",
"Absorption coefficient, colored dissolved organic matter at 518 nm",
"Absorption coefficient, colored dissolved organic matter at 520 nm",
"Absorption coefficient, colored dissolved organic matter at 522 nm",
"Absorption coefficient, colored dissolved organic matter at 524 nm",
"Absorption coefficient, colored dissolved organic matter at 526 nm",
"Absorption coefficient, colored dissolved organic matter at 528 nm",
"Absorption coefficient, colored dissolved organic matter at 530 nm",
"Absorption coefficient, colored dissolved organic matter at 532 nm",
"Absorption coefficient, colored dissolved organic matter at 534 nm",
"Absorption coefficient, colored dissolved organic matter at 536 nm",
"Absorption coefficient, colored dissolved organic matter at 538 nm",
"Absorption coefficient, colored dissolved organic matter at 540 nm",
"Absorption coefficient, colored dissolved organic matter at 542 nm",
"Absorption coefficient, colored dissolved organic matter at 544 nm",
"Absorption coefficient, colored dissolved organic matter at 546 nm",
"Absorption coefficient, colored dissolved organic matter at 548 nm",
"Absorption coefficient, colored dissolved organic matter at 550 nm",
"Absorption coefficient, colored dissolved organic matter at 552 nm",
"Absorption coefficient, colored dissolved organic matter at 554 nm",
"Absorption coefficient, colored dissolved organic matter at 556 nm",
"Absorption coefficient, colored dissolved organic matter at 558 nm",
"Absorption coefficient, colored dissolved organic matter at 560 nm",
"Absorption coefficient, colored dissolved organic matter at 562 nm",
"Absorption coefficient, colored dissolved organic matter at 564 nm",
"Absorption coefficient, colored dissolved organic matter at 566 nm",
"Absorption coefficient, colored dissolved organic matter at 568 nm",
"Absorption coefficient, colored dissolved organic matter at 570 nm",
"Absorption coefficient, colored dissolved organic matter at 572 nm",
"Absorption coefficient, colored dissolved organic matter at 574 nm",
"Absorption coefficient, colored dissolved organic matter at 576 nm",
"Absorption coefficient, colored dissolved organic matter at 578 nm",
"Absorption coefficient, colored dissolved organic matter at 580 nm",
"Absorption coefficient, colored dissolved organic matter at 582 nm",
"Absorption coefficient, colored dissolved organic matter at 584 nm",
"Absorption coefficient, colored dissolved organic matter at 586 nm",
"Absorption coefficient, colored dissolved organic matter at 588 nm",
"Absorption coefficient, colored dissolved organic matter at 590 nm",
"Absorption coefficient, colored dissolved organic matter at 592 nm",
"Absorption coefficient, colored dissolved organic matter at 594 nm",
"Absorption coefficient, colored dissolved organic matter at 596 nm",
"Absorption coefficient, colored dissolved organic matter at 598 nm",
"Absorption coefficient, colored dissolved organic matter at 600 nm",
"Absorption coefficient, colored dissolved organic matter at 602 nm",
"Absorption coefficient, colored dissolved organic matter at 604 nm",
"Absorption coefficient, colored dissolved organic matter at 606 nm",
"Absorption coefficient, colored dissolved organic matter at 608 nm",
"Absorption coefficient, colored dissolved organic matter at 610 nm",
"Absorption coefficient, colored dissolved organic matter at 612 nm",
"Absorption coefficient, colored dissolved organic matter at 614 nm",
"Absorption coefficient, colored dissolved organic matter at 616 nm",
"Absorption coefficient, colored dissolved organic matter at 618 nm",
"Absorption coefficient, colored dissolved organic matter at 620 nm",
"Absorption coefficient, colored dissolved organic matter at 622 nm",
"Absorption coefficient, colored dissolved organic matter at 624 nm",
"Absorption coefficient, colored dissolved organic matter at 626 nm",
"Absorption coefficient, colored dissolved organic matter at 628 nm",
"Absorption coefficient, colored dissolved organic matter at 630 nm",
"Absorption coefficient, colored dissolved organic matter at 632 nm",
"Absorption coefficient, colored dissolved organic matter at 634 nm",
"Absorption coefficient, colored dissolved organic matter at 636 nm",
"Absorption coefficient, colored dissolved organic matter at 638 nm",
"Absorption coefficient, colored dissolved organic matter at 640 nm",
"Absorption coefficient, colored dissolved organic matter at 642 nm",
"Absorption coefficient, colored dissolved organic matter at 644 nm",
"Absorption coefficient, colored dissolved organic matter at 646 nm",
"Absorption coefficient, colored dissolved organic matter at 648 nm",
"Absorption coefficient, colored dissolved organic matter at 650 nm",
"Absorption coefficient, colored dissolved organic matter at 652 nm",
"Absorption coefficient, colored dissolved organic matter at 654 nm",
"Absorption coefficient, colored dissolved organic matter at 656 nm",
"Absorption coefficient, colored dissolved organic matter at 658 nm",
"Absorption coefficient, colored dissolved organic matter at 660 nm",
"Absorption coefficient, colored dissolved organic matter at 662 nm",
"Absorption coefficient, colored dissolved organic matter at 664 nm",
"Absorption coefficient, colored dissolved organic matter at 666 nm",
"Absorption coefficient, colored dissolved organic matter at 668 nm",
"Absorption coefficient, colored dissolved organic matter at 670 nm",
"Absorption coefficient, colored dissolved organic matter at 672 nm",
"Absorption coefficient, colored dissolved organic matter at 674 nm",
"Absorption coefficient, colored dissolved organic matter at 676 nm",
"Absorption coefficient, colored dissolved organic matter at 678 nm",
"Absorption coefficient, colored dissolved organic matter at 680 nm",
"Absorption coefficient, colored dissolved organic matter at 682 nm",
"Absorption coefficient, colored dissolved organic matter at 684 nm",
"Absorption coefficient, colored dissolved organic matter at 686 nm",
"Absorption coefficient, colored dissolved organic matter at 688 nm",
"Absorption coefficient, colored dissolved organic matter at 690 nm",
"Absorption coefficient, colored dissolved organic matter at 692 nm",
"Absorption coefficient, colored dissolved organic matter at 694 nm",
"Absorption coefficient, colored dissolved organic matter at 696 nm",
"Absorption coefficient, colored dissolved organic matter at 698 nm",
"Absorption coefficient, colored dissolved organic matter at 700 nm",
"Absorption coefficient, colored dissolved organic matter at 702 nm",
"Absorption coefficient, colored dissolved organic matter at 704 nm",
"Absorption coefficient, colored dissolved organic matter at 706 nm",
"Absorption coefficient, colored dissolved organic matter at 708 nm",
"Absorption coefficient, colored dissolved organic matter at 710 nm",
"Absorption coefficient, colored dissolved organic matter at 712 nm",
"Absorption coefficient, colored dissolved organic matter at 714 nm",
"Absorption coefficient, colored dissolved organic matter at 716 nm",
"Absorption coefficient, colored dissolved organic matter at 718 nm",
"Absorption coefficient, colored dissolved organic matter at 720 nm",
"Absorption coefficient, colored dissolved organic matter at 722 nm",
"Absorption coefficient, colored dissolved organic matter at 724 nm",
"Absorption coefficient, colored dissolved organic matter at 726 nm",
"Absorption coefficient, colored dissolved organic matter at 728 nm",
"Absorption coefficient, colored dissolved organic matter at 730 nm",
"Absorption coefficient, colored dissolved organic matter at 732 nm",
"Absorption coefficient, colored dissolved organic matter at 734 nm",
"Absorption coefficient, colored dissolved organic matter at 736 nm",
"Absorption coefficient, colored dissolved organic matter at 738 nm",
"Absorption coefficient, colored dissolved organic matter at 740 nm",
"Absorption coefficient, colored dissolved organic matter at 742 nm",
"Absorption coefficient, colored dissolved organic matter at 744 nm",
"Absorption coefficient, colored dissolved organic matter at 746 nm",
"Absorption coefficient, colored dissolved organic matter at 748 nm",
"Absorption coefficient, colored dissolved organic matter at 750 nm",
"Comment",
"DEPTH, water, experiment",
"Event label",
"LATITUDE",
"LONGITUDE",
"Sampling date/time, experiment",
"Site",
"Station label",
"Type of study",
],
methods: [
"Spectrophotometric method with Liquid Waveguide Capillary Cell (LWCC)",
],
},
)
Origins: /Wissenschaft/PANGAEA
Tags: Meerwasser ? Phytoplankton ? Sensor ? Deutschland ? USA ? Geografische Koordinaten ? Absorption ? Marines Ökosystem ? U-Bahn ? Salzgehalt ? Meeresoberfläche ? Regen ? Studie ? Wasserprobe ? Wasser ? Nordsee ? Absorbance ? CDOM ? Phytoplankton bloom ? SML ? ULW ? absorption coefficient ? absorption spectroscopy ? coloured dissolved organic matter (CDOM) ? mesocosm ? mesocosm study ? sea surface microlayer ? sea-surface microlayer ? underlying water ?
Bounding boxes: 8.146221000000011° .. 8.146221000000011° x 53.51476300000002° .. 53.51476300000002°
License: cc-by/4.0
Data access requires registration: click here for further informationLanguage: Englisch/English
Modified: 2025-12-15
Time ranges: 2023-05-16 - 2023-06-16
Accessed 1 times.