García, Jessica |
Ph.D. student |
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Workpackage: |
WP 2 |
Institute: |
UDEP |
Email: |
jessica@gfz-potsdam.de |
Adress: |
GeoForschungsZentrum Potsdam, Telegrafenberg, 14473 Potsdam, Germany |
Phone: |
+49 331 288 1514 |
Fax: |
+49 331 288 1570 |
Responsibilities: |
| Ph.D. student supervised by Dr. Bruno Merz, Dr.Andreas Güntner (GFZ), Jorge Reyes(UDEP) |
Research Interest: |
| Hydrological modelling of the terrestrial hydrological cycle |
Abstract: |
| The objective of the research is to quantify mass transport of water and sediment within the river network of all basins draining into the Pacific Ocean in Northern Chile and Peru. The final goal is to estimate total mass fluxes from the continent into the coastal marine system. The river transport processes should be described, including an assessment of transmission losses in arid regions and of retention of water and sediments in lakes and reservoirs. For these purposes, adequate hydraulic models are to be selected and further developed to allow for quantification of the transport processes at the large-spatial scale. Topographic data and complementary data on river cross sections, reservoirs volumes, etc. have to be analyzed and adjusted for model parameterization. The approach should be suitable to describe the mean fluvial transport behaviour for El Niño, La Niña and normal years while accounting for extreme short-term fluctuations (river floods). The complexity of model applications should follow a top-down approach, i.e., start with simple models, which use readily available global or continental data sets. As far as more detailed data is available at smaller scales for selected river basins, they can be used to adapt and improve the large-scale model approaches. The work of this Ph.D. closely interacts with the cooperating Ph.D. research of Carolina Tavara (UDEP-GFZ) as it requires the spatially distributed input of water and sediment volumes from the land surfaces given the latter research. Only the combined consideration of both land surface processes (Ph.D. C. Tavara) and river transport (Ph.D. J. García) allows for calibration and validation against observed data on river discharge and possibly sediment load, and for estimating the total mass delivery into the ocean. |
Keywords: |
| hydrology, water balance, runoff, flood, erosion, sediment transport, hydrological model |
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