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1,164 results for “Western Atlantic”
Monthly and Annual contour lines of the zero and the positive maximum of the Wind Stress Curl over Western North Atlantic during 1980-2019 and the Gulf Stream path during 1993-2019.
<p>This dataset includes multiple fields: (i) files for monthly and annual fields for the max curl line and the zero curl line at 0.1 degree longitudinal resolutions; (ii) files for monthly and annual GS path obtained from Altimetry and originally processed by Andres (2016) at 0.1 degree longitudinal resolution. The maximum curl line (MCL) and the zero curl line (ZCL) calculations are briefly described here and are based on the original wind data (at 1.25 x 1.25 degree) provided by the Japanese reanalysis (JRA-55; Kobayashi et al., 2015) and available at https://zenodo.org/record/8200832 (Gifford et al. 2023). For details see Gifford, 2023. </p> <p>The wind stress curl (WSC) fields used for the MCL and ZCL calculations extend from 80W to 45W and 30N to 45N at the 1.25 by 1.25-degree resolution. The MCL is defined as the maximum WSC values greater than zero within the domain per 1.25 degree longitude. As such, it is a function of longitude and is not a constant WSC value unlike the zero contour. High wind stress curl values that occurred near the coast were not included within this calculation. After MCL at the 1.25 resolution was obtained the line was smoothed with a gaussian smoothing and interpolated on to a 0.1 longitudinal resolution. The smoothed MCL lines at 0.1 degree resolution are provided in separate files for monthly and annual averages (2 files). Similarly, 2 other files (monthly and annual) are provided for the ZCL. </p> <p>Like the MCL, the ZCL is a line derived from 1.25 degree longitude throughout the domain under the condition that it's the line of zero WSC. The ZCL is constant at 0 and does not vary spatially like the MCL. If there are more than one location of zero curl for a given longitude the first location south of the MCL is selected. Similar to the MCL, the ZCL was smoothed with a gaussian smoothing and interpolated on to a 0.1 longitudinal resolution. </p> <p>The above files span the years from 1980 through 2019. So, the monthly files have 480 months starting January 1980, and the annual files have 40 years of data. The files are organized with each row being a new time step and each column being a different longitude. Therefore, the monthly MCL and ZCL files are each 480 x 351 for the 0.1 resolution data. Similarly, the annual files are 40 x 351 for the 0.1 degree resolution data. </p> <p><strong>Note that the monthly MCLs and ZCLs are obtained from the monthly wind-stress curl fields. The annual MCLs and ZCLs are obtained from the annual wind-stress curl fields.</strong></p> <p>Since the monthly curl fields preserves more atmospheric mesoscales than the annual curl fields, the 12-month average of the monthly MCLs and ZCLs will not match with the annual MCLs and ZCLs derived from the annual curl field. The annual MCLs and ZCLs provided here are obtained from the annual curl fields and representative metrics of the wind forcing on an annual time-scale. </p> <p>Furthermore, the monthly Gulf Stream axis path (25 cm isoheight from Altimeter, reprocessed by Andres (2016) technique) from 1993 through 2019 have been made available here. A total of 324 monthly paths of the Gulf Stream are tabulated. In addition, the annual GS paths for these 27 years (1993-2019) of altimetry era have been put together for ease of use. The monthly Gulf Stream paths have been resampled and reprocessed for uniqueness at every 0.1 degree longitude from 75W to 50W and smoothed with a 100 km (10 point) running average via matlab. The uniqueness has been achieved by using Consolidator algorithm (D’Errico, 2023). </p> <p>Each monthly or annual GS path has 251 points between 75W to 50W at 0.1 degree resolution. </p>
Impact of Meteorological Factors on the Mesoscale Morphology of Cloud Streets during a Cold Air Outbreak over the western North Atlantic
<ul> <li>Supporting datasets for paper "Impact of Meteorological Factors on the Mesoscale Morphology of Cloud Streets during a Cold Air Outbreak over the western North Atlantic". </li> <li>Those are a subset of the (analyzed) datasets from WRF control simulation "ERA5" in netcdf format. See manuscript for more details. <ul> <li>cld_size.nc: cloud object size</li> <li>cld_ort_2020-03-01_15_00_00.nc: cloud object at 15:00 UTC</li> <li>hydro-02-2020-03-01_15/00/00.nc: water path sample data at 15:00 UTC</li> <li>wrfout_d02_2020-03-01_15/00/00: wrf output sample data at 15:00 UTC</li> </ul> </li> </ul>
Dataset for the ``Fast atmospheric response to a cold oceanic mesoscale patch in the north-western tropical Atlantic" publication
<p>The dataset presented here contains the files needed to produce the results presented in the publication "Fast atmospheric response to a SST mesoscale cold patch in the north-western subtropical Atlantic" submitted to the <em>Journal of Geophysical Research: Atmospheres</em>. The scripts that read and produce these files are publicly available at <a href="https://github.com/ClauClouds/SST-impact/">https://github.com/ClauClouds/SST-impact/</a> and can also be found in this repository (code_python.zip). This Zenodo data repository includes the following datasets:</p> <ul> <li> <p>Radiosonde data from 2-3 February 2020 (Stephan et al., 2021)</p> </li> <li> <p>Doppler lidar, and ARTHUS Raman lidar variables data from 2-3 February 2020,</p> </li> <li> <p>GOES-East (Geostationary Operational Environmental Satellite - East) Binary Cloud Mask (BCM) and Cloud Optical Depth (COD) products, provided at 2 km grid spacing every 10 minutes. They come from the GOES-R Advanced Baseline Imager (ABI) (Schmit et al., 2017), available at <a href="https://www.ncei.noaa.gov/products/satellite/goes-r-series.Data">https://www.ncei.noaa.gov/products/satellite/goes-r-series.Data</a> and they are provided for the 2-3 February 2020.</p> </li> <li> <p>Multi-scale Ultra-high Resolution (MUR) product (JPL MUR MEaSUREs Project, 2015,183 (Chin et al., 2017)) averaged between the 2nd and 3rdfor the 2nd of February 2020. The MUR product is an analysis product provided on a daily basis that combines different satellite (infrared at high and medium resolutions and microwave products) and in-situ data (Chin et al., 2017).</p> </li> <li> <p>W-band radar data post-processed for the purposes of the publication. The original W-band radar data used are publicly accessible at <a href="https://howto.eurec4a.eu/merian_cloudradar.html">https://howto.eurec4a.eu/merian_cloudradar.html</a> and can be downloaded via <a href="https://eurec4a.aeris-data.fr/">AERIS data portal</a>. See more details and specific DOI below.</p> </li> </ul> <p>The present dataset is structured as follows:</p> <ul> <li> <p>diurnal_cycle_removed_vars: files containing the time series of the variables without noise and diurnal cycle (filenames with extended dates 20200202 and 20200203)</p> </li> <li> <p>diurnal_cycle: files containing the diurnal cycle of each variable used in the publication</p> </li> <li> <p>binned_sst_vars: files containing variables binned in terms of SST, used to derive the plots in the paper.</p> </li> <li> <p>satellite_data: a folder containing all satellite data used in the publication</p> </li> </ul> <p>Additional data used in the publication, that are processed via the scripts contained in the link mentioned above, are available online at the following urls:</p> <ul> <li> <p>cloud radar observations can be directly obtained from the public dataset identifiable via DOI: <a href="https://doi.org/10.25326/235">https://doi.org/10.25326/235</a> (Acquistapace et al., 2022)</p> </li> <li> <p>ASCAT wind field data and corresponding MUR SST data are available from the NASA JPL PODAAC platform (<a href="https://podaac.jpl.nasa.gov/">https://podaac.jpl.nasa.gov/</a>)</p> </li> <li> <p>hourly ERA5 (Hersbach et al., 2020) gridded fields (available at https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-pressure-levels?tab=form, last accessed March 2022) of the following variables: SST, water vapor mixing ratio, air temperature, and horizontal wind components. </p> </li> </ul> <p><br> </p> <p>References;</p> <p>Acquistapace et al., 2022, ESSD, <a href="https://doi.org/10.25326/235">https://doi.org/10.25326/235</a>.</p> <p>Schmit, T. et al., 2017, QJRMS, <a href="https://doi.org/10.1175/BAMS-D-15-00230.1">https://doi.org/10.1175/BAMS-D-15-00230.1</a></p> <p>Hersbach et al., 2020, QJRMS, <a href="https://rmets.onlinelibrary.wiley.com/doi/abs/10.1002/qj.3803">https://rmets.onlinelibrary.wiley.com/doi/abs/10.1002/qj.3803</a></p> <p>Stephan et al., 2021, ESSD, <a href="https://doi.org/10.5194/essd-13-491-2021">https://doi.org/10.5194/essd-13-491-2021</a></p> <p>Chin, T. M. et al., (2017), RS, <a href="https://doi.org/10.1016/j.rse.2017.07.029">https://doi.org/10.1016/j.rse.2017.07.029</a></p>
Flow-topography interactions in the western tropical Atlantic boundary off Northeast Brazil.
<p>Figures and other media files of the paper Flow-topography interactions in the western tropical Atlantic boundary 2off Northeast Brazil.</p>
Hydrogen peroxide in the upper tropical troposphere over the Atlantic Ocean and western Africa during the CAFE-Africa aircraft campaign
<p>We provide here the supporting dataset for our study on airborne measurements of oh hydrogen peroxide in the upper tropical troposphere over the Atlantic Ocean and western Africa during the CAFE-Africa aircraft campaign in 2018.</p> <p> </p>
Morphological cladogenesis and terminal dwarfing in extinct Late Miocene through Pliocene menardiform globorotalids: New complementary data to «Evolutionary prospection in the Neogene planktic foraminifer Globorotalia menardii and related forms from ODP Hole 925B (Céara Rise, western tropical Atlantic): evidence for gradual evolution superimposed by long distance dispersal ?, Swiss J. Palaeontology, 135:205-248»
<p>A complementary morphometric data set is provided to the study of Knappertsbusch (2016) about the shell evolution of menardiform globorotalids (Neogene planktic foraminifera) at ODP Hole 925B from Céara Rise in the the western tropical Atlantic. The new measurements confirm splitting of extinct <em>Globorotalia multicamerata</em> from the <em>G. menardii</em> stock via the intermediate form <em>G. limbata</em> between about 6 Ma to 5 Ma ago. After splitting both <em>G. limbata</em> and <em>G. multicamerata</em> show gradual divergence from <em>G. menardii</em> in several shell parameters illustrating morphological cladogenesis. Between 2.88 Ma and 2.59 Ma the same parameters show a concerted trend towards reduced values indicating pre-extinction dwarfing. A comparison with published literature data of Delta<sup>18</sup>O trends between species, that populated the mixed layer (<em>Globigerinoides sacculifer</em>) and the thermocline layer (<em>Neogloboquadrina dutertrei</em>) at this location during those times suggests, that both divergence and subsequent dwarfing trends were probably the results of changes in upper watermass stratification.</p> <p>The complementary data set is provided in six zipped archives APPENDIX A, B, C, D, E and F (zipped with free software 7-Zip 22.00 (x64), 2022-06-15 from 1999-2022 Igor Pawlow), together with a description of the data in file Report_925B_suppl_1.pdf.</p>
Fig. 3 in Revision of Bairdiella (Sciaenidae: Perciformes) from the western South Atlantic, with insights into its diversity and biogeography
Fig. 3. The Atlantic coast of North, Central, and South America showing the geographic distribution of Bairdiella goeldi sp. nov. (yellow = molecular north–northeastern lineage, light blue = molecular southeastern lineage, white = no molecular data), B. ronchus (red), and B. veraecrucis (green). Some symbols represent more than one locality or a large number of specimens.
Fig. 3 in A new western Atlantic snapping shrimp of the Alpheus macrocheles group (Caridea, Alpheidae) revealed by morphological, molecular and color data
Fig. 3. Alpheus ramosportoae sp. nov., paratype, ♂, from seamounts of the North Chain, Ceará, northeastern Brazil (MOUFPE 13703). A. Second pereiopod, lateral view. B. Third pereiopod, lateral view. C. Fourth pereiopod, lateral view. D. Fifth pereiopod, lateral view. E–G. Third to fifth pereiopods, detail of propodus, lateral view. H–I. Third and fourth pereiopods, detail of dactylus. Scale bars: A–G = 0.5 mm; H–I = 0.25 mm.
Fig. 1 in A new western Atlantic snapping shrimp of the Alpheus macrocheles group (Caridea, Alpheidae) revealed by morphological, molecular and color data
Fig. 1. Alpheus ramosportoae sp. nov. A–D. Holotype, ♂, from off Recife, state of Pernambuco, northeastern Brazil (MOUFPE 19470). A. Carapace and cephalic appendages, dorsal view (setae omitted). B. Same, lateral view. C. Tooth on ventromesial carina of antennular peduncle. D. Left mandible, mesial view. E–L. Paratype, ♂, from seamounts of the North Chain, Ceará, northeastern Brazil (MOUFPE 13703). E. First maxilla, lateral view. F. Second maxilla, lateral view. G. First maxilliped, lateral view. H. Second maxilliped, lateral view. I. Third maxilliped, lateral view. J. Telson and uropods, dorsal view (setae omitted). K. Uropod, detail of the distolateral angle of the exopod. L. Uropod, detail of the posteerior margin of endopod. Scale bars: A–B, J = 1 mm; C–I, K–L = 0.5 mm.
Figure 1 in The hermit crab Sympagurus dimorphus (Anomura: Parapaguridae) at the edge of its range in the south-western Atlantic Ocean: population and morphometry features
Figure 1. Sympagurus dimorphus. Densities (number of individuals/100 m2) in the sampling areas from 2002 through 2006. Left column shows presence/absence data including all sampling sites, and right column shows densities on a relative scale.
FIGURES 9 12 in On the taxonomy of Turbonilla puncta (C. B. Adams, 1850) (Gastropoda, Pyramidellidae), with the description of a new species from Brazil and remarks on other western atlantic species
FIGURES 9 12: Turbonilla puncta (C. B. Adams, 1850). 9 Syntype of Turbonilla peilei Dall & Bartsch, 1911 (USNM 221610), length: 6.8 mm; 10 base of syntype of T. peilei; 11 syntype of Turbonilla haycocki Dall & Bartsch, 1911 (USNM 221611), length: 5.5 mm; 12 base of syntype of T. haycocki. Scale bars: 500 m.
FIGURES 1 8 in On the taxonomy of Turbonilla puncta (C. B. Adams, 1850) (Gastropoda, Pyramidellidae), with the description of a new species from Brazil and remarks on other western atlantic species
FIGURES 1 8: Turbonilla puncta (C. B. Adams, 1850). 1 Turbonilla puncta (neotype = holotype of Turbonilla alfredi Abbott, 1958 (ANSP 198692), length: 5.6 mm; 2 whole shell (ANSP 371203), length: 4.2 mm; 3 whole shell (IBUFRJ 9722), length: 5.1 mm; 4 whole shell (IBUFRJ 9722), length: 5.5 mm; 5 protoconch (IBUFRJ 9722); 6 detail of base of neotype; 7 detail of last two whorls (IBUFRJ 9722); 8 last whorl (IBUFRJ 9722). Scale bars: 6: 200 m; 5, 7, 8: 500 m.
FIGURES 18 26 in On the taxonomy of Turbonilla puncta (C. B. Adams, 1850) (Gastropoda, Pyramidellidae), with the description of a new species from Brazil and remarks on other western atlantic species
FIGURES 18 26: Turbonilla obsoleta Dall, 1892: 18 holotype (USNM 113233), length: 4.5 mm; 19 whole shell (MORG 38640), length: 4.4 mm; 20 whole shell (MNHN), length: 4.6 mm; 21 whole shell (MORG 23912), length: 5.4 mm; 22 whole shell (MORG 38640); 23 whole shell (MNHN), length: 4.7 mm; 24 base (MORG 38640); 25 protoconch (MNHN); 26: base (MNHN). Scale bars: 300 m.
FIGURE 2. A. Alcyonium paessleri May, 1899 in New records of octocorals (Cnidaria, Anthozoa) from the south western Atlantic Ocean, with zoogeographic considerations
FIGURE 2. A. Alcyonium paessleri May, 1899, alcohol sample, MACN 18635. B. Alcyonium haddoni Wright & Studer, 1889, alcohol sample, MACN 15666.
FIGURE 1. Chiridota heheva new species. Approximately 4 in Chiridota heheva, new species, from Western Atlantic deepsea cold seeps and anthropogenic habitats (Echinodermata: Holothuroidea: Apodida)
FIGURE 1. Chiridota heheva new species. Approximately 4 individuals in situ near whitish bacterial mats (?) at Florida Escarpment seep site, eastern Gulf of Mexico, 3,270 meters. Alvin Dive 1343. Approximate diameter of body 5 mm. Photo, S. Golubic.
FIGURE 3. A – C, E – J in Chiridota heheva, new species, from Western Atlantic deepsea cold seeps and anthropogenic habitats (Echinodermata: Holothuroidea: Apodida)
FIGURE 3. A – C, E – J, Chiridota heheva new species; D, Chiridota laevis (Fabricius). A, Left ventral radial piece from calcareous ring. Note absence of perforation for radial nerve. Length of piece 1. 9 mm. B, Right ventral interradial piece from calcareous ring; length of piece 1. 6 mm. C, Bipartite right dorsal radial piece from calcareous ring. Note absence of perforation for radial nerve. Length of piece 2. 7 mm. D, Chiridota laevis (Fabricius), bipartite right dorsal radial piece from calcareous ring. Note perforation for radial nerve. Length of piece mm. 1.6 mm. E, Rods from tentacles. Length of longest rod 177 µm. F, Inner surface of wheel from wheel papilla. Diameter of wheel 186 µm. G, Outer surface of wheel from wheel papilla. Diameter of wheel 154 µm. H, Three wheels from wheel papillae, two showing inner surface, one showing outer surface. Largest wheel abnormal in having teeth on margin of inner rim. Diameter of largest wheel 184 µm. I, Wheel in lateral view. Diameter of wheel 132 µm. J, Wheel in slightly oblique view. Diameter of wheel 190 µm.
FIGURE 2. Chiridota heheva new species. A in Chiridota heheva, new species, from Western Atlantic deepsea cold seeps and anthropogenic habitats (Echinodermata: Holothuroidea: Apodida)
FIGURE 2. Chiridota heheva new species. A, At Bathymodiolus heckeri mussel beds, Blake Ridge, closeup view showing anterior end of body with white spots (wheel papillae), and extended tentacles. Note fingerlike digits forming a fringe around tentacle terminal disc. Approximate diameter of tentacle stem 1 mm. From Van Dover et al., 2003, with permission. B, One individual at Bathymodiolus heckeri mussel beds, Blake Ridge, showing conspicuous white spots (wheel papillae) against bluish ground color of body wall. Approximate diameter of body 5 mm. Shrimp at right center is Alvinocaris sp. From Van Dover et al., 2003, with permission. C, At Central America wreck showing conspicuous white spots (wheel papillae) against bluish ground color of body wall. Image taken from videotape, Charles E. Herdendorf. Size of specimen unknown. D, At Central America wreck, showing extended feeding tentacles with conspicuous, discrete digits. Size of specimen unknown. Image taken from videotape, Charles E. Herdendorf. E, Oral field with 12 tentacles in a partially contracted state. Note absence of a “ ventral gap ” between tentacles. Long axis of mouth is 2 mm. F, Closeup view of contracted tentacles showing infolded digits. G, Partially contracted tentacle showing discrete digits. Approximate length of digits 1. 5 mm.
FIGURE 4 in New molecular phylogeny of Lucinidae: increased taxon base with focus on tropical Western Atlantic species (Mollusca: Bivalvia)
FIGURE 4. Single gene tree for Lucinidae based on cyt b sequences, using Bayesian inference as implemented by MrBayes. Support values are posterior probabilities (PP); branches with PP <50 % were collapsed. Western Atlantic species in red. See Table 1 for sample details. Monitilorinae and Lucininae expanded in Fig. 5.
FIGURE 1 in New molecular phylogeny of Lucinidae: increased taxon base with focus on tropical Western Atlantic species (Mollusca: Bivalvia)
FIGURE 1. Combined gene tree for Lucinidae based on sequences from three genes (18 S rRNA, 28 S rRNA and cyt b), using Bayesian inference as implemented by MrBayes. Support values are posterior probabilities (PP). Codakiinae and Lucininae expanded in Figs 2 and 3. See Table 1 for sample details. Western Atlantic species in red. Scale is number of substitutions per site. Locality codes used on trees. ABD—Abu Dhabi; ANG—Angola; BD—Bermuda; BOC—Bocas, Panama; BR—Broome, Australia; CAL—California; CB – Chesterfield Bank; COSRIC West Costa Rica; CR—Croatia; DMP—Dampier, Australia; DEV—Devon, UK; FK—Florida Keys; FR—France; GD—Guadeloupe; HK—Hong Kong; JPN – Japan; KK—Kungkraben Bay, Thailand; LH—Lord Howe Island; LI – Lizard Island, Australia; MAD—Madagascar; MADANG—Madang, Papua New Guinea; MAUR – Mauritius; MB—Moreton Bay, Australia; MEX—West Mexico; NC—New Caledonia; NIG—Nigeria; OK— Okinawa; PAN – Panglao, Philippines; PNG – Papua New Guinea; ROD—Rodrigues; RUK—Ryukyus, Japan; SAF—Safaga, Red Sea; SGP—Singapore; SOL—Solomon Sea; SYD—Sydney, Australia; TCB—Tin Can Bay, Australia; TIM—East Timor; TJ—Tjärnö, Sweden; TUN—Djerba, Tunisia; VAN—Vanuatu; VEN—Venezuela; UK—England.
Figure 7 in Revalidation of Leucetta floridana (Haeckel, 1872) (Porifera, Calcarea): a widespread species in the tropical western Atlantic
Figure 7. Box-and-whisker plot (maximum and minimum size; upper and lower quartiles and median) of spicule size of Leucetta spp. A, triactine I length; B, triactine I width; C, triactine II length; D, triactine II width; E, tetractine I length; F, tetractine I width; G, tetractine II length; H, tetractine II width. Leucetta floridana (Caribbean), Z Leucetta floridana (Brazil), Leucetta sp., Leucetta microraphis.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.