/* DATA DESCRIPTION: Citation: Romero, Oscar E; Armand, Leanne K; Crosta, Xavier; Pichon, Jean-Jacques (2005): Relative abundance of diatom species in surface samples from the Southern Ocean, Tropical/Subtropical species. PANGAEA, https://doi.org/10.1594/PANGAEA.425286, Supplement to: Romero, OE et al. (2005): The biogeography of major diatom taxa in Southern Ocean sediments: 3. Subantarctic species. Palaeogeography, Palaeoclimatology, Palaeoecology, 223(1-2), 49-65, https://doi.org/10.1016/j.palaeo.2005.03.027 Abstract: This paper gives a modern circumscription of Tropical/Subtropical diatoms regarding their relationship with sea-surface temperatures (SST) and sea ice cover. Diatoms from 228 core-top sediment samples collected from the Southern Ocean were studied to determine the geographic distribution of eight major diatom species/taxa preserved in surface sediments generally located north of the Subantarctic Front. The comparison of the relative contribution of diatom species with modern February SST and sea-ice cover reveals species-specific sedimentary distributions regulated both by water temperatures and sea ice conditions. Although selective preservation might have played some role, their presence in surface and downcore sediments from the Southern Ocean are reliable indicators of high SST and poleward transport of waters from the Tropical/Subtropical Atlantic. Our work supports the use of diatom remains to reconstruct past variations of these environmental parameters via qualitative and transfer function approaches. Project(s): Center for Marine Environmental Sciences (MARUM) (URI: https://www.marum.de/en/) Coverage: MEDIAN LATITUDE: -38.664575 * MEDIAN LONGITUDE: -22.036029 * SOUTH-BOUND LATITUDE: -44.516800 * WEST-BOUND LONGITUDE: -24.248500 * NORTH-BOUND LATITUDE: -31.950000 * EAST-BOUND LONGITUDE: -17.340000 DATE/TIME START: 2000-02-17T05:54:00 * DATE/TIME END: 2000-03-04T02:21:00 MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m Event(s): GeoB6402-9 * LATITUDE: -39.742700 * LONGITUDE: -22.756500 * DATE/TIME: 2000-02-17T05:54:00 * ELEVATION: -3878.0 m * Recovery: 0.43 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: 3 x bottom contact GeoB6403-4 * LATITUDE: -40.013300 * LONGITUDE: -23.365200 * DATE/TIME: 2000-02-17T20:49:00 * ELEVATION: -4226.0 m * Recovery: 0.14 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: MultiCorer (MUC) * COMMENT: 4 large, 4 small tubes filled GeoB6404-3 * LATITUDE: -41.505800 * LONGITUDE: -23.464800 * DATE/TIME: 2000-02-18T10:17:00 * ELEVATION: -4223.0 m * Recovery: 0.11 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: MultiCorer (MUC) * COMMENT: 4 large, 4 small tubes filled, CTD at 50 m GeoB6405-8 * LATITUDE: -42.000000 * LONGITUDE: -21.853200 * DATE/TIME: 2000-02-19T07:20:00 * ELEVATION: -3863.0 m * Recovery: 0.3 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: MultiCorer (MUC) * COMMENT: all tubes filled, IRD/dropstones GeoB6406-1 * LATITUDE: -42.000300 * LONGITUDE: -20.784000 * DATE/TIME: 2000-02-19T14:02:00 * ELEVATION: -3514.0 m * Recovery: 0.2 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: MultiCorer (MUC) * COMMENT: all tubes filled, CTD at 50 m GeoB6407-2 * LATITUDE: -42.044800 * LONGITUDE: -19.500000 * DATE/TIME: 2000-02-20T03:17:00 * ELEVATION: -3384.0 m * Recovery: 0.13 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: MultiCorer (MUC) * COMMENT: all tubes filled, one small & one large tube partly washed out, CTD at 50 m GeoB6408-3 * LATITUDE: -43.614200 * LONGITUDE: -20.441000 * DATE/TIME: 2000-02-20T23:00:00 * ELEVATION: -3797.0 m * Recovery: 0.34 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics GeoB6409-3 * LATITUDE: -44.507000 * LONGITUDE: -21.716800 * DATE/TIME: 2000-02-21T20:01:00 * ELEVATION: -4296.0 m * Recovery: 0.41 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: dropstones ! GeoB6410-1 * LATITUDE: -44.516800 * LONGITUDE: -20.900000 * DATE/TIME: 2000-02-22T04:27:00 * ELEVATION: -4038.0 m * Recovery: 0.13 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: MultiCorer (MUC) * COMMENT: 4 large, 4 small tubes filled, CTD at 50 m GeoB6411-4 * LATITUDE: -44.363300 * LONGITUDE: -18.352000 * DATE/TIME: 2000-02-23T04:02:00 * ELEVATION: -3893.0 m * Recovery: 0.39 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics GeoB6413-4 * LATITUDE: -44.206800 * LONGITUDE: -17.340000 * DATE/TIME: 2000-02-23T19:37:00 * ELEVATION: -3768.0 m * Recovery: 0.37 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics, CTD at 50 m GeoB6417-2 * LATITUDE: -39.093300 * LONGITUDE: -21.041700 * DATE/TIME: 2000-02-27T16:30:00 * ELEVATION: -4024.0 m * Recovery: 0.27 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics GeoB6418-3 * LATITUDE: -38.426500 * LONGITUDE: -21.535000 * DATE/TIME: 2000-02-28T08:01:00 * ELEVATION: -4126.0 m * Recovery: 0.43 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics GeoB6419-1 * LATITUDE: -37.774000 * LONGITUDE: -21.864200 * DATE/TIME: 2000-02-28T16:56:00 * ELEVATION: -3568.0 m * Recovery: 0.36 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: CTD did not register GeoB6420-2 * LATITUDE: -37.158300 * LONGITUDE: -22.148300 * DATE/TIME: 2000-02-29T05:35:00 * ELEVATION: -3998.0 m * Recovery: 0.37 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics, CTD at 50 m GeoB6421-1 * LATITUDE: -36.448300 * LONGITUDE: -22.445000 * DATE/TIME: 2000-02-29T13:46:00 * ELEVATION: -4216.0 m * Recovery: 0.4 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics, CTD at 50 m GeoB6422-5 * LATITUDE: -35.707300 * LONGITUDE: -22.733300 * DATE/TIME: 2000-03-01T03:24:00 * ELEVATION: -3972.0 m * Recovery: 0.33 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics, CTD at 50 m GeoB6423-1 * LATITUDE: -35.252500 * LONGITUDE: -22.991700 * DATE/TIME: 2000-03-01T09:32:00 * ELEVATION: -3963.0 m * Recovery: 0.4 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics GeoB6424-2 * LATITUDE: -34.608200 * LONGITUDE: -23.275800 * DATE/TIME: 2000-03-01T21:22:00 * ELEVATION: -3820.0 m * Recovery: 0.4 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics, CTD at 50 m GeoB6425-1 * LATITUDE: -33.825000 * LONGITUDE: -23.587500 * DATE/TIME: 2000-03-02T03:26:00 * ELEVATION: -4352.0 m * Recovery: 0.4 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics GeoB6426-1 * LATITUDE: -33.499200 * LONGITUDE: -24.024200 * DATE/TIME: 2000-03-02T15:41:00 * ELEVATION: -4385.0 m * Recovery: 13.41 m * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Gravity corer (Kiel type) (SL) * COMMENT: geology and geophysics GeoB6427-1 * LATITUDE: -33.182200 * LONGITUDE: -24.247700 * DATE/TIME: 2000-03-03T01:10:00 * ELEVATION: -4491.0 m * Recovery: 0.36 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: MultiCorer (MUC) * COMMENT: all tubes filled, CTD at 50 m GeoB6428-2 * LATITUDE: -32.510000 * LONGITUDE: -24.248500 * DATE/TIME: 2000-03-03T17:07:00 * ELEVATION: -4015.0 m * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: MultiCorer (MUC) * COMMENT: all tubes washed out, CTD at 50 m GeoB6429-1 * LATITUDE: -31.950000 * LONGITUDE: -24.248300 * DATE/TIME: 2000-03-04T02:21:00 * ELEVATION: -4335.0 m * Recovery: 0.4 m * LOCATION: Central South Atlantic * CAMPAIGN: M46/4 (URI: https://doi.org/10.2312/cr_m46) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: Giant box corer (GKG) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: geology and geophysics, CTD at 50 m Comment: Depth=Surface sediment 0-1 cm Parameter(s): Event label (Event) Latitude of event (Latitude) Longitude of event (Longitude) Elevation of event [m] (Elevation) DEPTH, sediment/rock [m] (Depth sed) * GEOCODE Alveus marinus [%] (A. marinus) * PI: Romero, Oscar E (https://orcid.org/0000-0003-0209-3258, oromero@uni-bremen.de, https://www.researchgate.net/profile/Oscar-Romero-21) * METHOD/DEVICE: Counting, diatoms Azpeitia tabularis [%] (A. tabularis) * PI: Romero, Oscar E (https://orcid.org/0000-0003-0209-3258, oromero@uni-bremen.de, https://www.researchgate.net/profile/Oscar-Romero-21) * METHOD/DEVICE: Counting, diatoms Fragilariopsis doliolus [%] (F. doliolus) * PI: Romero, Oscar E (https://orcid.org/0000-0003-0209-3258, oromero@uni-bremen.de, https://www.researchgate.net/profile/Oscar-Romero-21) * METHOD/DEVICE: Counting, diatoms Hemidiscus cuneiformis [%] (H. cuneiformis) * PI: Romero, Oscar E (https://orcid.org/0000-0003-0209-3258, oromero@uni-bremen.de, https://www.researchgate.net/profile/Oscar-Romero-21) * METHOD/DEVICE: Counting, diatoms Roperia tessellata [%] (R. tessellata) * PI: Romero, Oscar E (https://orcid.org/0000-0003-0209-3258, oromero@uni-bremen.de, https://www.researchgate.net/profile/Oscar-Romero-21) * METHOD/DEVICE: Counting, diatoms Thalassionema nitzschioides var. parva [%] (T. nitzschioides var. parva) * PI: Romero, Oscar E (https://orcid.org/0000-0003-0209-3258, oromero@uni-bremen.de, https://www.researchgate.net/profile/Oscar-Romero-21) * METHOD/DEVICE: Counting, diatoms Thalassiosira oestrupii var. oestrupii [%] (T. oestrupii var. oestrupii) * PI: Romero, Oscar E (https://orcid.org/0000-0003-0209-3258, oromero@uni-bremen.de, https://www.researchgate.net/profile/Oscar-Romero-21) * METHOD/DEVICE: Counting, diatoms Thalassiosira symmetrica [%] (T. symmetrica) * PI: Romero, Oscar E (https://orcid.org/0000-0003-0209-3258, oromero@uni-bremen.de, https://www.researchgate.net/profile/Oscar-Romero-21) * METHOD/DEVICE: Counting, diatoms License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 192 data points */ Event Latitude Longitude Elevation [m] Depth sed [m] A. marinus [%] A. tabularis [%] F. doliolus [%] H. cuneiformis [%] R. tessellata [%] T. nitzschioides var. parva [%] T. oestrupii var. oestrupii [%] T. symmetrica [%] GeoB6402-9 -39.7427 -22.7565 -3878 0 22.73 0.00 31.82 4.55 9.09 0.00 0.00 0.00 GeoB6403-4 -40.0133 -23.3652 -4226 0 5.40 4.99 26.91 2.14 3.06 2.85 11.93 1.12 GeoB6404-3 -41.5058 -23.4648 -4223 0 1.72 0.00 3.45 0.00 0.00 0.00 0.00 0.00 GeoB6405-8 -42.0000 -21.8532 -3863 0 1.60 16.20 17.89 4.18 4.00 1.00 9.00 1.60 GeoB6406-1 -42.0003 -20.7840 -3514 0 3.05 21.14 21.70 11.17 2.09 0.32 10.45 2.65 GeoB6407-2 -42.0448 -19.5000 -3384 0 1.74 14.97 15.08 7.54 3.94 0.35 7.42 1.95 GeoB6408-3 -43.6142 -20.4410 -3797 0 0.91 23.29 6.51 6.96 5.48 0.00 12.21 1.94 GeoB6409-3 -44.5070 -21.7168 -4296 0 0.00 9.28 1.51 0.40 0.91 0.00 3.13 0.71 GeoB6410-1 -44.5168 -20.9000 -4038 0 0.00 0.76 2.29 0.76 0.00 0.00 0.00 0.00 GeoB6411-4 -44.3633 -18.3520 -3893 0 0.00 22.27 3.74 8.08 9.56 0.10 7.45 3.15 GeoB6413-4 -44.2068 -17.3400 -3768 0 0.18 10.02 3.64 4.74 8.56 0.18 2.19 0.36 GeoB6417-2 -39.0933 -21.0417 -4024 0 10.00 0.00 2.00 0.00 4.00 0.00 4.00 0.00 GeoB6418-3 -38.4265 -21.5350 -4126 0 11.11 4.76 33.33 6.35 4.76 0.00 11.11 1.59 GeoB6419-1 -37.7740 -21.8642 -3568 0 24.00 4.00 12.00 6.00 2.00 0.00 0.00 0.00 GeoB6420-2 -37.1583 -22.1483 -3998 0 23.33 2.00 12.00 2.00 4.67 0.00 0.00 2.00 GeoB6421-1 -36.4483 -22.4450 -4216 0 12.50 3.13 12.50 4.17 2.08 0.00 0.00 3.13 GeoB6422-5 -35.7073 -22.7333 -3972 0 23.40 2.13 6.38 2.13 6.38 0.00 0.00 6.38 GeoB6423-1 -35.2525 -22.9917 -3963 0 5.32 1.06 1.06 1.06 1.06 0.00 2.13 0.00 GeoB6424-2 -34.6082 -23.2758 -3820 0 20.65 7.61 17.39 0.00 13.04 0.00 0.00 3.26 GeoB6425-1 -33.8250 -23.5875 -4352 0 20.00 6.00 6.00 4.00 4.00 0.00 0.00 8.00 GeoB6426-1 -33.4992 -24.0242 -4385 0 21.82 3.64 1.82 1.82 12.73 0.00 0.00 1.82 GeoB6427-1 -33.1822 -24.2477 -4491 0 5.47 3.13 0.00 0.00 3.91 0.00 0.78 1.56 GeoB6428-2 -32.5100 -24.2485 -4015 0 18.75 0.00 0.00 0.00 0.00 0.00 0.00 0.00 GeoB6429-1 -31.9500 -24.2483 -4335 0 11.54 1.28 0.00 2.56 1.28 0.00 0.00 2.56