Data · dataset · 2026
A new 1D/2D coupled modeling approach for a riverine-estuarine system under storm events: Application to Delaware river basin
Listed in National Center for Atmospheric Research
Numerical simulations of three of the most severe historical tropical cyclones to affect the Delaware River Basin (DRB) are used to evaluate a new numerical approach that is a candidate model for the inland-coastal compound flood forecast.
Description
This study includes simulating interactions of tides/surges, freshwater streamflows, winds, and atmospheric pressure for the DRB. One-way coupling between the hydrologic (National Water Model [NWM]) and the ocean/wave (ADvanced CIRCulation model/WAVEWATCH III [ADCIRC/WW3]) models for the Delaware river-estuarine system is developed.
The links between the coastal processes and the NWM are provided by two different hydraulic and hydrodynamic models: (i) a well-calibrated public-domain 1D hydraulic solver model (Hydrologic Engineering Center's River Analysis System [HEC-RAS]) and (ii) 1D/2D open-sourced hydrodynamic model (D-Flow Flexible Mesh [D-Flow FM]). First, the modeling system is tested to confirm model verification and stability when the system is forced with only tidal forcing.
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Then, the relative performance of each modeling approach (NWM/D-Flow FM/ADCIRC/WW3 and NWM/HEC-RAS/ADCIRC/WW3) is evaluated using observational data from Hurricanes Isabel (2003), Irene (2011), and Sandy (2012). Furthermore, the sensitivity of water level prediction to the streamflows, different wind products, and bed roughness are examined. Results show that the D-Flow FM is generally accurate for water levels: the water levels near the peak of the storms have askillranging from 0.79 to 0.91 with a negligible phase error.
Simulations show that water level predictions depend on an accurate representation of the wind conditions and bottom roughness. The work shows that hydrodynamic predictions, especially upstream, are highly dependent on the streamflow discharges.
Links
Get the data
- Publisher page n2t.org/ark:/85065/d72z18sd ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/a-new-1d-2d-coupled-modeling-approach-for-a-riverine-e… ↗
National Center for Atmospheric Research dataset page
landing page · from data ucar edu
Catalogue records · 1
- CKAN API data.ucar.edu/api/3/action/package_show?id=9ccf034f-3ebf-4f37-817f-7f5ce7728… ↗
metadata API · from data ucar edu
Topics
- From keywords
- Earth & Environmental Science · Ocean & Atmospheric Science
- Inferred from text
- Geoinformatics 72%
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| National Center for Atmospheric Research | 9ccf034f-3ebf-4f37-817f-7f5ce7728937 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:3704 | enrichment · data ucar edu | taxonomy-embedding@1.1.0 | title+keywords+description (72%) |
| concepts[field].local:field:earth-environmental | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| created_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| description | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /notes |
| publication_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| title | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /title |
| updated_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 |