Uploads by Dronkers J
This special page shows all uploaded files.
| Date | Name | Thumbnail | Size | Description | Versions |
|---|---|---|---|---|---|
| 13:28, 14 April 2020 | PoaBillardierei.jpg (file) |  |
83 KB | Poa billardierei (Sand tussock, Hinarepe) Photo credit: Shannel Courtney | 1 |
| 13:25, 14 April 2020 | AcaciaSophorae.jpg (file) |  |
110 KB | Acacia sophorae (Coastal Wattle) Photo credit Sheldon Navie | 1 |
| 13:19, 14 April 2020 | UniolaPaniculata.jpg (file) |  |
82 KB | Uniola Paniculata (Sea Oats) Photo credit Melissa P | 1 |
| 20:47, 13 April 2020 | SporobolusPumilus.jpg (file) |  |
66 KB | Sporobolus pumilus (Spartina patens, Saltmeadow Cordgrass) | 1 |
| 20:46, 13 April 2020 | SpinifexSericeus.jpg (file) |  |
75 KB | Spinifex sericeus (Spinifex) | 1 |
| 20:45, 13 April 2020 | PanicumAmarum.jpg (file) |  |
55 KB | Panicum amarum (Bitter panicum, coastal panicgrass) | 1 |
| 09:58, 13 April 2020 | AmmophilaArenaria.jpg (file) |  |
26 KB | Ammophila arenaria (Marram grass) | 1 |
| 10:42, 6 April 2020 | ElectricalResistivity.jpg (file) |  |
240 KB | Electrical resistivity measurement by continuous vertical electrical sounding. | 1 |
| 20:36, 5 April 2020 | PolderSeepage.jpg (file) |  |
505 KB | Groundwater seepage into a polder and associated rise of the salt-fresh interface. | 2 |
| 15:08, 5 April 2020 | EstuaryIntrusion.jpg (file) |  |
43 KB | Intrusion of seawater from a salt-wedge estuary into the underground. | 1 |
| 14:28, 5 April 2020 | BalanceSaltFresh.jpg (file) |  |
65 KB | A small level difference is sufficient to keep a large fresh water column in balance with a salt water column. | 1 |
| 10:54, 5 April 2020 | PhysicalBarrier.jpg (file) |  |
399 KB | Physical subsurface barrier at the seaward entrance of an aquifer. | 2 |
| 10:53, 5 April 2020 | HydraulicAbstractionBarrier.jpg (file) |  |
491 KB | Hydraulic abstraction barrier at the seaward entrance of an aquifer. | 1 |
| 10:51, 5 April 2020 | HydraulicInjectionBarrier.jpg (file) |  |
497 KB | Hydraulic injection barrier at the seaward entrance of an aquifer. | 1 |
| 10:49, 5 April 2020 | Freshkeeper.jpg (file) |  |
296 KB | Principle of the freshkeeper system: removal of brackish groundwater to a lower aquifer to make room for storage of fresh water. | 1 |
| 10:48, 5 April 2020 | Freshmaker.jpg (file) |  |
580 KB | Principle of the freshmaker system: withdrawal of brackish groundwater to make room for a thick fresh water lens. | 1 |
| 10:47, 5 April 2020 | TemporaryStorage.jpg (file) |  |
578 KB | Temporary storage of rainwater. | 1 |
| 10:46, 5 April 2020 | DuneInfiltration.jpg (file) |  |
284 KB | Large fresh water reservoir created by dune infiltration. | 2 |
| 10:43, 5 April 2020 | SkimmingWell.jpg (file) |  |
561 KB | Horizontal skimming well. The upconing effect is limited by spreading the extraction is spread over a broad zone. | 1 |
| 10:38, 5 April 2020 | PolderDrainage.jpg (file) |  |
584 KB | Drainage of a polder causing upconing of brackish water into the ditches. | 1 |
| 10:37, 5 April 2020 | UpconingWell.jpg (file) |  |
339 KB | Upconing brackish water under a pumping well. | 1 |
| 10:35, 5 April 2020 | MarineTransgression.jpg (file) |  |
546 KB | Infiltration of marine flood water into the underground. | 1 |
| 10:34, 5 April 2020 | GroundwaterExtractionTrends.jpg (file) |  |
48 KB | Agricultural groundwater usage for selected countries in billion km3/year. Source: UN World Water Development Report, 2015 | 1 |
| 10:31, 5 April 2020 | AirborneTEM.jpg (file) |  |
45 KB | SkyTEM team recording Time Domain Electromagnetic Data. Source: G. Oude Essink, https://publicwiki.deltares.nl/ | 1 |
| 09:24, 5 April 2020 | WorldWaterDistribution.png (file) |  |
92 KB | World water distribution. Credit: pbslearningmedia. | 1 |
| 10:16, 4 April 2020 | SaltFreshBalance.jpg (file) |  |
32 KB | A small level difference is sufficient to keep a large fresh water column in balance with a salt water column, because of the small relative density difference. | 1 |
| 20:54, 28 March 2020 | SubmergedBreakwater.jpg (file) |  |
172 KB | Submerged breakwater (negative freeboard). The graph shows the range of values for the wave transmission coefficient obtained from experiments. | 1 |
| 15:26, 28 March 2020 | ReshapingBermBreakwater.jpg (file) |  |
125 KB | Fully reshaping berm breakwater. | 1 |
| 16:40, 21 March 2020 | LiquefactionPrinciple.jpg (file) |  |
61 KB | Principle of soil liquefaction. | 1 |
| 18:41, 19 March 2020 | FallingApron.jpg (file) |  |
158 KB | Principle of the falling apron. | 1 |
| 18:41, 19 March 2020 | ConcreteArmorUnits.jpg (file) |  |
93 KB | Examples of concrete armor units. | 1 |
| 18:40, 19 March 2020 | SlipFailure.jpg (file) |  |
131 KB | Slip failure of the breakwater core. | 1 |
| 18:39, 19 March 2020 | SeabedLiquefaction.jpg (file) |  |
140 KB | Collapse of the armor layer due to seabed liquefaction under the toe of the breakwater. | 1 |
| 18:38, 19 March 2020 | CrownElement.jpg (file) |  |
54 KB | Breakwater with crown element. | 1 |
| 18:37, 19 March 2020 | RearSideFailure.jpg (file) |  |
134 KB | Erosion of the rear side of the breakwater due to overtopping waves. | 1 |
| 18:36, 19 March 2020 | OffshoreBreakwaterShoreRevetment.jpg (file) |  |
135 KB | Left panel: Offshore rubble-mound breakwater. Right panel: Rubble-mound revetment protecting the backshore. | 1 |
| 11:49, 29 February 2020 | Figure6 3 COLOR.png (file) |  |
493 KB | Global map of the amplitude of quarterdiurnal tide M4. | 1 |
| 11:46, 29 February 2020 | Figure5 2 COLOR.png (file) |  |
491 KB | Global map of the luni-solar declinational diurnal component K1. | 1 |
| 11:44, 29 February 2020 | Figure5 1 COLOR.png (file) |  |
608 KB | Global map of the principal lunar semidiurnal component. | 1 |
| 11:44, 29 February 2020 | Figure1 3 COLOR.png (file) |  |
93 KB | Global distribution of the tidal range. | 1 |
| 11:43, 29 February 2020 | Figure1 2 COLOR.png (file) |  |
105 KB | Global distribution of semidiurnal, diurnal and mixed tides. | 1 |
| 12:43, 22 February 2020 | DamBreakFlowDerivation.jpg (file) |  |
311 KB | Derivation of the solution for frictionless dam break flow. | 1 |
| 12:40, 22 February 2020 | Dijkdoorbraak1953.jpg (file) |  |
314 KB | Sea dikes protecting low-lying polders in the Netherlands were breached during the extreme storm surge of 31 January 1953. | 1 |
| 15:46, 21 February 2020 | AccraCloggedDrainageCanals.jpg (file) |  |
167 KB | Clogged drainage canals in Accra (Ghana). Photo credit TU Delft. | 1 |
| 10:40, 19 February 2020 | FreshMakerSystem.jpg (file) |  |
55 KB | Creation of a fresh water lens by fresh water infiltration after artificial lowering of the salt water interface. | 1 |
| 10:39, 19 February 2020 | PaleochannelInfiltration.jpg (file) |  |
43 KB | Schematic representation of the underground fresh water reservoir created by fresh water infiltration in a sandy paleochannel deposit protruding above the mean land level. | 1 |
| 10:38, 19 February 2020 | HydraulicBarrier.jpg (file) |  |
103 KB | Schematic representation of a hydraulic barrier at the seaward entrance of an aquifer. | 1 |
| 10:37, 19 February 2020 | SeepageMechanisms.jpg (file) |  |
183 KB | Illustration of different seepage processes. | 1 |
| 10:36, 19 February 2020 | GroundwaterManagementAspects.jpg (file) |  |
173 KB | Factors that influence the groundwater system. | 1 |
| 10:34, 19 February 2020 | SeepageUpconing.jpg (file) |  |
37 KB | Salt water upconing under a seepage hotspot. | 1 |
