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  • 11
    Publication Date: 2023-10-18
    Keywords: ANT-XXVIII/3; Area/locality; Chlorophyll a, areal concentration; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; Elevation of event; Event label; Latitude of event; Longitude of event; Mixed layer depth; Photosynthetic efficiency normalized to chlorophyll a biomass; Polarstern; Primary production, integrated; PS79; PS79/085-3; PS79/086-2; PS79/091-5; PS79/114-2; PS79/128-10; PS79/136-8; PS79/137-7; PS79/138-2; PS79/139-3; PS79/140-12; PS79/147-1; PS79/149-1; PS79/155-1; PS79/160-1; PS79/165-5; PS79/168-1; PS79/169-1; PS79/170-1; PS79/174-9; PS79/175-1; Radiation, photosynthetically active per day; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 116 data points
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  • 12
    Publication Date: 2024-02-24
    Description: We present a data set on remote sensing reflectance (RRS) at 1nm resolution from 350 to 800nm obtained from measurements in the coastal and open ocean areas of the South China Sea and Sulu Sea from 18 to 27 November 2011. For the measurements we used radiometric hyperspectral (3.3 nm sampling, 10 nm FWHM) underwater profile measurements down to the 0.1 % light level using RAMSES (TriOS GmbH, Germany) sensors which measured depth resolved the upwelling radiance and downwelling irradiance, both corrected by incident sunlight fluctuations with a second RAMSES sensor measuring the above water downwelling irradiance. The later sensor data were also used to finally calculate RRS. We followed the protocol by Mueller et al. (2003) further modified by Matsuoka et al. (2007) and Stramski et al. (2008), as described for our instrument set-up in Taylor et al. (2011). Our method is further described and assessed for its uncertainty in Tilstone et al. (2020). The campaign is described in detail in Cheah et al. (2013) and was also optical constituents hyperspectral absorption data (Bracher et al. 2021a, b) and phytoplankton pigments (Bracher 2014) were measured.
    Keywords: Apparent optical properties; DATE/TIME; DEPTH, water; Event label; Identification; Latitude of event; Longitude of event; RAMSES; RAMSES hyperspectral radiometer; remote sensing reflectance; Remote sensing reflectance at 350 nm; Remote sensing reflectance at 351 nm; Remote sensing reflectance at 352 nm; Remote sensing reflectance at 353 nm; Remote sensing reflectance at 354 nm; Remote sensing reflectance at 355 nm; Remote sensing reflectance at 356 nm; Remote sensing reflectance at 357 nm; Remote sensing reflectance at 358 nm; Remote sensing reflectance at 359 nm; Remote sensing reflectance at 360 nm; Remote sensing reflectance at 361 nm; Remote sensing reflectance at 362 nm; Remote sensing reflectance at 363 nm; Remote sensing reflectance at 364 nm; Remote sensing reflectance at 365 nm; Remote sensing reflectance at 366 nm; Remote sensing reflectance at 367 nm; Remote sensing reflectance at 368 nm; Remote sensing reflectance at 369 nm; Remote sensing reflectance at 370 nm; Remote sensing reflectance at 371 nm; Remote sensing reflectance at 372 nm; Remote sensing reflectance at 373 nm; Remote sensing reflectance at 374 nm; Remote sensing reflectance at 375 nm; Remote sensing reflectance at 376 nm; Remote sensing reflectance at 377 nm; Remote sensing reflectance at 378 nm; Remote sensing reflectance at 379 nm; Remote sensing reflectance at 380 nm; Remote sensing reflectance at 381 nm; Remote sensing reflectance at 382 nm; Remote sensing reflectance at 383 nm; Remote sensing reflectance at 384 nm; Remote sensing reflectance at 385 nm; Remote sensing reflectance at 386 nm; Remote sensing reflectance at 387 nm; Remote sensing reflectance at 388 nm; Remote sensing reflectance at 389 nm; Remote sensing reflectance at 390 nm; Remote sensing reflectance at 391 nm; Remote sensing reflectance at 392 nm; Remote sensing reflectance at 393 nm; Remote sensing reflectance at 394 nm; Remote sensing reflectance at 395 nm; Remote sensing reflectance at 396 nm; Remote sensing reflectance at 397 nm; Remote sensing reflectance at 398 nm; Remote sensing reflectance at 399 nm; Remote sensing reflectance at 400 nm; Remote sensing reflectance at 401 nm; Remote sensing reflectance at 402 nm; Remote sensing reflectance at 403 nm; Remote sensing reflectance at 404 nm; Remote sensing reflectance at 405 nm; Remote sensing reflectance at 406 nm; Remote sensing reflectance at 407 nm; Remote sensing reflectance at 408 nm; Remote sensing reflectance at 409 nm; Remote sensing reflectance at 410 nm; Remote sensing reflectance at 411 nm; Remote sensing reflectance at 412 nm; Remote sensing reflectance at 413 nm; Remote sensing reflectance at 414 nm; Remote sensing reflectance at 415 nm; Remote sensing reflectance at 416 nm; Remote sensing reflectance at 417 nm; Remote sensing reflectance at 418 nm; Remote sensing reflectance at 419 nm; Remote sensing reflectance at 420 nm; Remote sensing reflectance at 421 nm; Remote sensing reflectance at 422 nm; Remote sensing reflectance at 423 nm; Remote sensing reflectance at 424 nm; Remote sensing reflectance at 425 nm; Remote sensing reflectance at 426 nm; Remote sensing reflectance at 427 nm; Remote sensing reflectance at 428 nm; Remote sensing reflectance at 429 nm; Remote sensing reflectance at 430 nm; Remote sensing reflectance at 431 nm; Remote sensing reflectance at 432 nm; Remote sensing reflectance at 433 nm; Remote sensing reflectance at 434 nm; Remote sensing reflectance at 435 nm; Remote sensing reflectance at 436 nm; Remote sensing reflectance at 437 nm; Remote sensing reflectance at 438 nm; Remote sensing reflectance at 439 nm; Remote sensing reflectance at 440 nm; Remote sensing reflectance at 441 nm; Remote sensing reflectance at 442 nm; Remote sensing reflectance at 443 nm; Remote sensing reflectance at 444 nm; Remote sensing reflectance at 445 nm; Remote sensing reflectance at 446 nm; Remote sensing reflectance at 447 nm; Remote sensing reflectance at 448 nm; Remote sensing reflectance at 449 nm; Remote sensing reflectance at 450 nm; Remote sensing reflectance at 451 nm; Remote sensing reflectance at 452 nm; Remote sensing reflectance at 453 nm; Remote sensing reflectance at 454 nm; Remote sensing reflectance at 455 nm; Remote sensing reflectance at 456 nm; Remote sensing reflectance at 457 nm; Remote sensing reflectance at 458 nm; Remote sensing reflectance at 459 nm; Remote sensing reflectance at 460 nm; Remote sensing reflectance at 461 nm; Remote sensing reflectance at 462 nm; Remote sensing reflectance at 463 nm; Remote sensing reflectance at 464 nm; Remote sensing reflectance at 465 nm; Remote sensing reflectance at 466 nm; Remote sensing reflectance at 467 nm; Remote sensing reflectance at 468 nm; Remote sensing reflectance at 469 nm; Remote sensing reflectance at 470 nm; Remote sensing reflectance at 471 nm; Remote sensing reflectance at 472 nm; Remote sensing reflectance at 473 nm; Remote sensing reflectance at 474 nm; Remote sensing reflectance at 475 nm; Remote sensing reflectance at 476 nm; Remote sensing reflectance at 477 nm; Remote sensing reflectance at 478 nm; Remote sensing reflectance at 479 nm; Remote sensing reflectance at 480 nm; Remote sensing reflectance at 481 nm; Remote sensing reflectance at 482 nm; Remote sensing reflectance at 483 nm; Remote sensing reflectance at 484 nm; Remote sensing reflectance at 485 nm; Remote sensing reflectance at 486 nm; Remote sensing reflectance at 487 nm; Remote sensing reflectance at 488 nm; Remote sensing reflectance at 489 nm; Remote sensing reflectance at 490 nm; Remote sensing reflectance at 491 nm; Remote sensing reflectance at 492 nm; Remote sensing reflectance at 493 nm; Remote sensing reflectance at 494 nm; Remote sensing reflectance at 495 nm; Remote sensing reflectance at 496 nm; Remote sensing reflectance at 497 nm; Remote sensing reflectance at 498 nm; Remote sensing reflectance at 499 nm; Remote sensing reflectance at 500 nm; Remote sensing reflectance at 501 nm; Remote sensing reflectance at 502 nm; Remote sensing reflectance at 503 nm; Remote sensing reflectance at 504 nm; Remote sensing reflectance at 505 nm; Remote sensing reflectance at 506 nm; Remote sensing reflectance at 507 nm; Remote sensing reflectance at 508 nm; Remote sensing reflectance at 509 nm; Remote sensing reflectance at 510 nm; Remote sensing reflectance at 511 nm; Remote sensing reflectance at 512 nm; Remote sensing reflectance at 513 nm; Remote sensing reflectance at 514 nm; Remote sensing reflectance at 515 nm; Remote sensing reflectance at 516 nm; Remote sensing reflectance at 517 nm; Remote sensing reflectance at 518 nm; Remote sensing reflectance at 519 nm; Remote sensing reflectance at 520 nm; Remote sensing reflectance at 521 nm; Remote sensing reflectance at 522 nm; Remote sensing reflectance at 523 nm; Remote sensing reflectance at 524 nm; Remote sensing reflectance at 525 nm; Remote sensing reflectance at 526 nm; Remote sensing reflectance at 527 nm; Remote sensing reflectance at 528 nm; Remote sensing reflectance at 529 nm; Remote sensing reflectance at 530 nm; Remote sensing reflectance at 531 nm; Remote sensing reflectance at 532 nm; Remote sensing reflectance at 533 nm; Remote sensing reflectance at 534 nm; Remote sensing reflectance at 535 nm; Remote sensing reflectance at 536 nm; Remote sensing reflectance at 537 nm; Remote sensing reflectance at 538 nm; Remote sensing reflectance at 539 nm; Remote sensing reflectance at 540 nm; Remote sensing reflectance at 541 nm; Remote sensing reflectance at 542 nm; Remote sensing reflectance at 543 nm; Remote sensing reflectance at 544 nm; Remote sensing reflectance at 545 nm; Remote sensing reflectance at 546 nm; Remote sensing reflectance at 547 nm; Remote sensing reflectance at 548 nm; Remote sensing reflectance at 549 nm; Remote sensing reflectance at 550 nm; Remote sensing reflectance at 551 nm; Remote sensing reflectance at 552 nm; Remote sensing reflectance at 553 nm; Remote sensing reflectance at 554 nm; Remote sensing
    Type: Dataset
    Format: text/tab-separated-values, 2712 data points
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  • 13
    Publication Date: 2024-04-20
    Keywords: ANT-XXVIII/3; AWI_MarGeoChem; Bottle number; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; Elevation of event; Event label; Latitude of event; Longitude of event; Marine Geochemistry @ AWI; Polarstern; PS79; PS79/057-4; PS79/063-2; PS79/069-5; PS79/075-9; PS79/081-5; PS79/084-12; PS79/085-3; PS79/086-2; PS79/087-2; PS79/091-1; PS79/091-5; PS79/093-4; PS79/095-1; PS79/095-3; PS79/102-1; PS79/102-3; PS79/106-1; PS79/106-4; PS79/115-1; PS79/115-4; PS79/119-1; PS79/119-3; PS79/128-14; PS79/129-1; PS79/137-7; PS79/139-3; PS79/139-6; PS79/140-12; PS79/147-1; PS79/152-1; PS79/166-1; PS79/170-1; PS79/173-1; PS79/174-20; South Atlantic Ocean; Thorium-234, total; Thorium-234, total, standard deviation; Thorium-234/Uranium-238 activity ratio; Thorium-234/Uranium-238 activity ratio, standard deviation; Uranium-238; Uranium-238, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 2261 data points
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  • 14
  • 15
    Publication Date: 2020-09-01
    Print ISSN: 0886-6236
    Electronic ISSN: 1944-9224
    Topics: Biology , Chemistry and Pharmacology , Geography , Geosciences , Physics
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  • 16
    Publication Date: 2017-09-14
    Description: A suite of oxygenated volatile organic compounds (OVOCs – acetaldehyde, acetone, propanal, butanal and butanone) were measured concurrently in the surface water and atmosphere of the South China Sea and Sulu Sea in November 2011. A strong correlation was observed between all OVOC concentrations in the surface seawater along the entire cruise track, except for acetaldehyde, suggesting similar sources and sinks in the surface ocean. Additionally, several phytoplankton groups, such as haptophytes or pelagophytes, were also correlated to all OVOCs, indicating that phytoplankton may be an important source of marine OVOCs in the South China and Sulu seas. Humic- and protein-like fluorescent dissolved organic matter (FDOM) components seemed to be additional precursors for butanone and acetaldehyde. The measurement-inferred OVOC fluxes generally showed an uptake of atmospheric OVOCs by the ocean for all gases, except for butanal. A few important exceptions were found along the Borneo coast, where OVOC fluxes from the ocean to the atmosphere were inferred. The atmospheric OVOC mixing ratios over the northern coast of Borneo were relatively high compared with literature values, suggesting that this coastal region is a local hotspot for atmospheric OVOCs. The calculated amount of OVOCs entrained into the ocean seemed to be an important source of OVOCs to the surface ocean. When the fluxes were out of the ocean, marine OVOCs were found to be enough to control the locally measured OVOC distribution in the atmosphere. Based on our model calculations, at least 0.4 ppb of marine-derived acetone and butanone can reach the upper troposphere, where they may have an important influence on hydrogen oxide radical formation over the western Pacific Ocean.
    Print ISSN: 1680-7316
    Electronic ISSN: 1680-7324
    Topics: Geosciences
    Published by Copernicus on behalf of European Geosciences Union.
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  • 17
    Publication Date: 2016-08-23
    Electronic ISSN: 1932-6203
    Topics: Medicine , Natural Sciences in General
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  • 18
    Publication Date: 2019-10-29
    Description: In summer 2010, a massive bloom appeared in the middle (16–25°N, 160–200°E) of the North Pacific Subtropical Gyre (NPSG) creating a spectacular oasis in the middle of the largest oceanic desert on Earth. Peaked in June 2010 covering over two million km2 in space, this phytoplankton bloom is the largest ever recorded by ocean color satellites in the NPSG over the period from 1997 to 2013. The initiation and mechanisms sustaining the massive bloom were due to atmospheric and oceanic anomalies. Over the north (25–30°N) of the bloom, strong anticyclonic winds warmed sea surface temperature (SST) via Ekman convergence. Subsequently, anomalous westward ocean currents were generated by SST meridional gradients between 19°N and 25°N, producing strong velocity shear that caused large number of mesoscale (100-km in order) cyclonic eddies in the bloom region. The ratio of cyclonic to anticyclonic eddies of 2.7 in summer 2010 is the highest over the 16-year study period. As a result of the large eddy-number differences, eddy-eddy interactions were strong and induced submesoscale (smaller than 100 km) vertical pumping as observed in the in-situ ocean profiles. The signature of vertical pumping was also presented in the in-situ measurements of chlorophyll and nutrients, which show higher concentrations in 2010 than other years.
    Electronic ISSN: 2045-2322
    Topics: Natural Sciences in General
    Published by Springer Nature
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  • 19
    Publication Date: 2019-04-01
    Electronic ISSN: 2045-2322
    Topics: Natural Sciences in General
    Published by Springer Nature
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  • 20
    Publication Date: 2017-07-24
    Electronic ISSN: 2045-2322
    Topics: Natural Sciences in General
    Published by Springer Nature
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