Upload log
Below is a list of the most recent file uploads. See the gallery of new files for a more visual overview.
(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)- 17:00, 20 December 2024 Dronkers J (talk | contribs) uploaded File:Prochlorococcus.jpg (Cyanobacteria Prochlorococcus spp. Photo credit Derek Tan http://www3.botany.ubc.ca/derek/ Creative commons noncommercial licence)
- 20:54, 14 December 2024 Dronkers J (talk | contribs) uploaded File:MeanGlobalChlorophyll.jpg (Mean global distribution of ocean surface chlorophyll-a from SeaWiFS satellite observations. Image credit NASA.)
- 15:50, 5 December 2024 Dronkers J (talk | contribs) uploaded File:ProcScales.jpg (Temporal and spatial scales of ocean processes)
- 14:09, 17 November 2024 Dronkers J (talk | contribs) uploaded File:BacterialAlgalMat.jpg (Bacterial algae mat. Courtesy Cuadrado, D.G., Perillo, G.M.E. and Vitale, A.J. 2014. Modern microbial mats in siliciclastic tidal flats: Evolution, structure and the role of hydrodynamics. Marine Geology 352: 367-380)
- 22:34, 16 November 2024 Dronkers J (talk | contribs) uploaded File:Rotifer.jpg (Rotifer ‘’Brachionus manjavacas’’, microscopic planktonic organism. Courtesy: Kristin Gribble. https://www.mbl.edu/research/research-organisms/rotifer)
- 22:29, 16 November 2024 Dronkers J (talk | contribs) uploaded File:Tardigrade.jpg (''Milnesium tardigradum''. Tardigrades (water bears) are among the most resilient animals known, capable to survive extreme conditions. Courtesy Schokraie, E., Warnken, U., Hotz-Wagenblatt, A., Grohme, M.A., Hengherr, S., et al. 2012. Comparative prote...)
- 22:13, 16 November 2024 Dronkers J (talk | contribs) uploaded File:Ostracod.jpg (The myodocopid ostracod genus ‘’Vargula’’ (sea firefly), famous for its bioluminescence. Courtesy Robin James Smith, https://www.biwahaku.jp/smith/ostracod_predation.html)
- 22:09, 16 November 2024 Dronkers J (talk | contribs) uploaded File:ForaminiferaAnomalinoidesSphericus.jpg (Foraminifera ''Anomalinoides Sphericus‘’. Courtesy Hayward, B.W., Grenfell, H.R., Reid, C.M. and Hayward, K.A. 1999. Recent New Zealand shallow-water benthic Foraminifera: Taxonomy, ecologic distribution, biogeography, and use in paleoenvironmental...)
- 22:06, 16 November 2024 Dronkers J (talk | contribs) uploaded File:Gastropod.jpg (Gastropod ‘’Homalopoma sangarense’’. Courtesy Naturalis Biodiversity Center/Wikimedia Commons)
- 10:33, 16 November 2024 Dronkers J (talk | contribs) uploaded File:BenthicFactors.jpg (Factors affecting benthic organisms in coastal ecosystems. From Satheesh, S. and El-Sherbiny, M.M. 2022. Ecology, distribution, and biogeography of benthos. Ecology and Biodiversity of Benthos, Elsevier, pp. 251-285)
- 10:50, 14 November 2024 Dronkers J (talk | contribs) uploaded File:VesicomyidClam.jpg (Vesicomyid clams at Southern Hydrate Ridge, hosting symbiotic microbes. This 'colony' is perched at the ledge above a site known as Einstein’s Grotto, at 770 m depth, which in 2013 was actively venting. Photo: NSF-OOI/UW/CSSF; Dive R1750; V14.https:/...)
- 10:38, 14 November 2024 Dronkers J (talk | contribs) uploaded File:MalacosteusNiger.jpg (Malacosteus niger, commonly known as the black dragon fish. M. niger (length 10-20 cm) is a species of deep-sea fish. It is able to produce both red and blue bioluminescence. Photo credit: Ken Graham. Creative Commons Licence (CC BY-NC))
- 12:14, 13 November 2024 Dronkers J (talk | contribs) uploaded File:HumpbackAnglerfish.jpg (The humpback anglerfish or common black devil (Melanocetus johnsonii). [https://zoo-tycoon-movie.fandom.com/ Creative Commons Attribution NonCommercial license (“CC BY-NC” or “CC BY-NC-SA”)])
- 20:55, 12 November 2024 Dronkers J (talk | contribs) uploaded File:OceanDepthProfiles.jpg (Typical depth profiles of light, nitrogen and chlorophyll a in the subtropical ocean. Adapted from © 2012 Nature Education, https://www.nature.com/scitable/knowledge/library/the-biological-productivity-of-the-ocean-70631104/)
- 20:54, 12 November 2024 Dronkers J (talk | contribs) uploaded File:GlobalChlorophyll.jpg (Composite global ocean maps of concentrations of satellite-derived surface chlorophyll concentrations. Left: July, August, September. Right: January, February, March. © 2012 Nature Education https://www.nature.com/scitable/knowledge/library/the-biolo...)
- 22:42, 7 November 2024 Dronkers J (talk | contribs) uploaded a new version of File:SlopingSeabed.jpg (Sloping seabed; definition of the axes.)
- 22:35, 7 November 2024 Dronkers J (talk | contribs) uploaded File:SlopingSeabed.jpg (Sloping seabed; definition of the axes.)
- 20:22, 7 November 2024 Dronkers J (talk | contribs) uploaded File:EdgeWaveRefraction.jpg (Wave ray of incoming and reflected wave crest (red) and wave ray of incoming wave trough (black line). The edge wave is trapped in a coastal strip of width <math>x_c</math>.)
- 20:18, 7 November 2024 Dronkers J (talk | contribs) uploaded a new version of File:EdgeWave.jpg (Principle of wave trapping to the shore by wave refraction and reflection. The wave crest is shown in red at successive times (from left to right), black arrows indicate the wave propagation speed and the dotted line displays the wave ray.)
- 22:09, 2 November 2024 Dronkers J (talk | contribs) uploaded File:SeawallNoSeawall.jpg (A seawall stops shoreline retreat but the beach is lost. Without seawall, the beach is preserved but land is lost (Ruggiero, 2010). Photo credit Chip Fletcher (Hawaii).)
- 21:44, 2 November 2024 Dronkers J (talk | contribs) uploaded File:SeawallNoSeawall.jpg (A seawall stops shoreline retreat but the beach is lost. Without seawall, the beach is preserved but land is lost (Ruggiero, 2010). Photo credit Chip Fletcher (Hawaii).)
- 22:51, 30 October 2024 Dronkers J (talk | contribs) uploaded File:WaveTransmissionLCB.jpg (Wave transmission over a low-crested breakwater and mathematical symbols.)
- 22:46, 30 October 2024 Dronkers J (talk | contribs) uploaded File:WaveTransmission.jpg (Wave transmission over a low-crested breakwater and mathematical symbols.)
- 22:44, 30 October 2024 Dronkers J (talk | contribs) uploaded File:WaveTransmission.jpg (Wave transmission over a low-crested breakwater and mathematical symbols.)
- 22:41, 30 October 2024 Dronkers J (talk | contribs) uploaded a new version of File:WaveTransmission.jpg (Reverted to version as of 23:03, 15 May 2023 (CEST))
- 20:44, 30 October 2024 Dronkers J (talk | contribs) uploaded a new version of File:WaveTransmission.jpg (Wave transmission over an oyster reef and mathematical symbols. The freeboard <math>R_c</math> is negative when the reef crest is below the still water level <math>SWL</math>.)
- 17:42, 30 October 2024 Dronkers J (talk | contribs) uploaded a new version of File:WaveTransmissionEasternScheldtOysterReef.jpg (Comparison of Eq. (1) (red dashed line) with the wave transmission coefficient measured (blue/green/yellow dots[10]) on an oyster reef in the Eastern Scheldt (Netherlands). Insert: Average cross-shore shape of the oyster reef.)
- 17:07, 30 October 2024 Dronkers J (talk | contribs) uploaded File:WaveReefTransmission.jpg (Wave transmission over an oyster reef and mathematical symbols. The freeboard <math>R_c</math> is negative when the reef crest is below the still water level <math>SWL</math>.)
- 09:30, 15 October 2024 Dronkers J (talk | contribs) uploaded File:SkewWaveTransport.jpg (Horizontal wave orbital velocity <math>U</math> and sediment transport <math>Q</math> averaged over the ripple length for acceleration-skewed waves, velocity-skewed waves and acceleration+velocity-skewed waves. Adapted from Salimi-Tarazouj, A., Tian-Ji...)
- 15:53, 13 October 2024 Dronkers J (talk | contribs) uploaded File:SandwavesNorthSea.jpg (Sand waves in the southern North Sea (insert upper left corner, black dot, depth 35-40 m), imaged by multibeam sonar. An indication of the order of magnitude of the wavelength of the sand waves (ca. 100 m) is given by the shipwreck of the freighter Tim...)
- 19:12, 12 October 2024 Dronkers J (talk | contribs) uploaded File:RotationDamp.jpg (Variation of the ratio <math>|\Psi^+/\Psi^|</math> over the vertical, showing that the anticyclonic velocity component <math>\Psi^-</math> is more strongly damped than the cyclonic component <math>\Psi^+<\math>.)
- 10:14, 7 October 2024 Dronkers J (talk | contribs) uploaded File:SeawaterIntrusion3.jpg (Schematic representation of seawater intrusion into a multi-aquifer system.)
- 10:11, 1 October 2024 Dronkers J (talk | contribs) uploaded a new version of File:WindTurbinePileDriving.jpg (Pile driving for the installation of an offshore wind turbine. Source https://www.deingenieur.nl/)
- 09:35, 1 October 2024 Dronkers J (talk | contribs) uploaded File:WindTurbinePileDriving.jpg (Pile driving for the installation of an offshore wind turbine. Photo credit https://www.tudelftcampus.nl/)
- 10:46, 21 September 2024 Dronkers J (talk | contribs) uploaded a new version of File:PCB.jpg (Molecular structure polychlorinated biphenyl (PCB).)
- 10:44, 21 September 2024 Dronkers J (talk | contribs) uploaded File:Tributyltin.jpg (Molecular structure tributyltin (TBT).)
- 10:10, 21 September 2024 Dronkers J (talk | contribs) uploaded File:EutrophicationZostera.jpg (Overgrown Zostera in the Baltic Sea. Photo credit Metsähallitus. Creative Commons Licence CC BY-SA 2.0)
- 15:16, 14 September 2024 Dronkers J (talk | contribs) uploaded File:Exchange fluxes mixing.jpg (Exchange fluxes mixed salt-fresh interface)
- 12:55, 14 September 2024 Dronkers J (talk | contribs) uploaded File:GroundwaterTracer.jpg (Determination of submarine groundwater discharge by measuring tracer concentrations <math>c(x)</math>.)
- 19:16, 10 September 2024 Dronkers J (talk | contribs) uploaded File:TurtlePlasticIngest.jpg (Sea turtle eating a plastic bag. Image from https://tontoton.com/how-does-ocean-plastic-affect-marine-wildlife/#)
- 18:46, 10 September 2024 Dronkers J (talk | contribs) uploaded File:PlasticGarbageBeach.jpg (Beach covered with plastic garbage. Photo credit: Mel D Cole/World Bank)
- 18:45, 10 September 2024 Dronkers J (talk | contribs) uploaded File:EntangledTurtle.jpg (A green sea turtle is entangled in an abandoned fishing net. Image courtesy of Doug Helton, NOAA. Wikimedia commons)
- 21:14, 5 September 2024 Dronkers J (talk | contribs) uploaded File:TankerSpillStats23.jpg (Quantities of oil spilled from tanker incidents 1970-2023. From ITOPF website https://www.itopf.org/knowledge-resources/data-statistics/statistics/)
- 21:11, 5 September 2024 Dronkers J (talk | contribs) uploaded File:TankerSpillStats23.jpg .jpg (Quantities of oil spilled from tanker incidents 1970-2023. From https://www.itopf.org/knowledge-resources/data-statistics/statistics/)
- 09:08, 31 August 2024 Dronkers J (talk | contribs) uploaded File:SeabedRipples.jpg (Seabed ripples. Photo credit Julia Harwood.)
- 12:31, 30 August 2024 Dronkers J (talk | contribs) uploaded a new version of File:PhaseLead.jpg (The phase lead angle <math>\phi</math> of the bed shear stress relative to the bed perturbation as a function of <math>k \, d_{50}</math>. Figure adapted from Charru et al. (2013<ref name=C13/>).)
- 11:37, 30 August 2024 Dronkers J (talk | contribs) uploaded File:PhaseLead.jpg (The phase lead angle <math>\phi</math> of the bed shear stress relative to the bed perturbation as a function of <math>k \, d_{50}</math>. Figure adapted from Charru et al. (2013<ref name=C13/>).)
- 19:02, 22 August 2024 Dronkers J (talk | contribs) uploaded File:Bedform7.jpg (If oscillating flow is assumed to be equivalent to successive periods of steady flow from the right and from the left, then the net resulting flow pattern consists of circulation cells that move sediment grains from the troughs to the crests.)
- 19:00, 22 August 2024 Dronkers J (talk | contribs) uploaded File:Bedform6.jpg (Flow pattern adjusted to a bed perturbation similar as in Fig. 5, but with the flow direction reversed.)
- 18:58, 22 August 2024 Dronkers J (talk | contribs) uploaded File:Bedform5.jpg (The negative vorticity balance on the upstream side of the ripple drives a counterclockwise circulation, while the positive balance on the downstream side drives a clockwise circulation.)
