PI | |
Project Type | Simulation |
Facilities | |
Related Work | Linked Dataset | ADCIRC website |
Keywords | storm surge; data assimilation; forecasting; coastal flooding |
DOI | 10.17603/2z8h-7k90 |
This project holds model simulations and data analyses in support of a study developing and testing a new data assimilation technique to improve coastal water level model accuracy. The study used three different sources for the model's wind and pressure (meteorological) inputs to force the ADCIRC+SWAN coupled ocean circulation and wave model for simulations of Hurricane Matthew (2016). The study area covered the U.S. Atlantic coast from Florida through North Carolina, with some information provided throughout the Chesapeake Bay. Full details on this work are in the corresponding journal article (see Asher et al. in Related Work). Three sources of meteorological forcing were used to hindcast Hurricane Matthew. These correspond to lower- and intermediate-grade sources that are similar to what might be available during forecasting, and a third higher-grade source that is only available post-storm. Two closely related data assimilation methods were developed and applied to improve model accuracy. Results showed that the data assimilation method substantially reduced model error by correcting for gradual errors in water levels. These results also provide data on differences in performance between the three sources of meteorological inputs. These data can be used for study of model hindcast performance, work on data assimilation methodology, or model sensitivity to meteorological inputs.
Simulation Type | Storm Surge |
Author(s) | |
Date Published | 2019-10-08 |
DOI | 10.17603/ds2-ne6j-s897 |
License | Open Data Commons Attribution |
Further details on these runs are provided in the journal article that accompanies this data. Sixteen runs of the model are included. All runs share a similar configuration of the model, with the same mesh and numerical parameters. The only differences between simulations are model forcing terms and the usage of data assimilation. The runs can be broken into two groups: 12 runs based around Hurricane Matthew (2016) and 4 runs based around an idealized test case of the data assimilation methods. Details on model input and output files can be found on http://adcirc.org the ADCIRC website. The 12 runs for Hurricane Matthew include 3 used to initialize the model and 9 varying combinations of meteorological inputs and data assimilation methods. Runs listed under Simulation Model (A) were used to initialize the Hurricane Mathew case and are likely not of interest unless one wishes to reproduce the results herein. The remaining 9 runs are in three groups of 3 runs each: Simulation Model (B.G) runs with basic-quality meteorological inputs. Simulation Model (B.N) runs with intermediate-quality meteorological inputs. Simulation Model (B.O) runs with high-quality meteorological inputs. Each of these contains a run without data assimilation (B.*.1), a run with the first data assimilation method (B.*.3), and a run with the second data assimilation method (B.*.4). Note that the corresponding data assimilation analysis for each of these are categorized as (B.*.2). The idealized test of the data assimilation methods consists of 2 model initialization runs and 2 runs comparing the methods. The two model initialization runs are under Simulation Model (C). The two runs comparing the methods are under Simulation Model (D), with one run for the first method and the second run for the second.
This file serves to provide basic documentation on how to utilize the scripts necessary to create the data assimilation input file required by the model.
File Name |
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This Category holds simulations used to initialize tides and meteorological forcing in the model for the days leading up to Hurricane Matthew. The first run (A.1) initializes the ocean circulation model (ADCIRC) with tidal forcing. The model state is saved at the end of this simulation to the fort.67.nc file so that other runs can start up where that run ended with the same state. The other two runs, (A.2.GN) and (A.2.O), each initialize meteorological forcing to the model to allow the Hurricane Matthew runs to be run. Run (A.2.GN) initializes for Simulation Models (B.G) and (B.N). Run (A.2.O) initializes for Simulation Model (B.O). Similar to run (A.1), the output fort.68.nc file from each of these runs holds the model state used as input to the Hurricane Matthew runs. The folders corresponding to each run name hold the full run directory's files, and may be helpful to more experienced users. The ".in" and ".out" input and output file lists. Information on model files can be found at http://adcirc.org/ .
- Simulation Input | (A.1) Tidal InitializationDescription:
See description in Simulation Model (A)
File Name - Simulation Output | (A.1) Tidal InitializationDescription:
See description in Simulation Model (A)
File Name
- Simulation Input | (A.2.GN) Meteorological Forcing InitializationDescription:
See description in Simulation Model (A)
File Name - Simulation Output | (A.2.GN) Meteorological Forcing InitializationDescription:
See description in Simulation Model (A)
File Name
See description in Simulation Model (B.G)
File Name |
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This Category holds simulations using lower-quality meteorological inputs. These inputs are derived from the National Hurricane Center's "Best Track" data using what is known as a "vortex model" (in this case, the Generalized Asymmetric Holland Model or GAHM). This vortex model attempts to describe the wind and pressure fields around a hurricane with parametric equations, but has no information about conditions far from the center of the storm. Runs in this category use the model state at the end of run (A.2.GN) as an input to start from. As with the other two Hurricane Matthew Simulation Models (B.N) and (B.O), this category has: (B.G.1) One baseline run of Matthew. (B.G.2) One analysis that holds the data assimilation done on the outputs of the baseline run and provides the extra inputs necessary for the other two runs. (B.G.3) One assimilated run of Matthew with the default assimilation method (PAP method). (B.G.4) One assimilated run of Matthew with an alternative assimilation method (CON method). Baseline and assimilated simulations are identical except that the latter have additional assimilated inputs. More detail on all aspects of this are provided in the associated publication (see main description). The folders corresponding to each run name hold the full run directory's files, and may be helpful to more experienced users. The ".in" and ".out" input and output file lists. Information on model files can be found at http://adcirc.org/ .
- Simulation Input | (B.G.1) Baseline Run of Matthew with Basic Quality Meteorological InputsDescription:
See description in Simulation Model (B.G)
File Name - Simulation Output | (B.G.1) Baseline Run of Matthew with Basic Quality Meteorological InputsDescription:
See description in Simulation Model (B.G)
File Name
- Simulation Input | (B.G.3) Assimilated Run (PAP Method) of Matthew with Basic Quality Meteorological InputsDescription:
See description in Simulation Model (B.G)
File Name - Simulation Output | (B.G.3) Assimilated Run (PAP Method) of Matthew with Basic Quality Meteorological InputsDescription:
See description in Simulation Model (B.G)
File Name
- Simulation Input | (B.G.4) Assimilated Run (CON Method) of Matthew with Basic Quality Meteorological InputsDescription:
See description in Simulation Model (B.G)
File Name - Simulation Output | (B.G.4) Assimilated Run (CON Method) of Matthew with Basic Quality Meteorological InputsDescription:
See description in Simulation Model (B.G)
File Name
See description in Simulation Model (B.N)
File Name |
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This Category holds simulations using intermediate-quality meteorological inputs. Around the center of Matthew, wind and pressure data come from the vortex model described in Simulation Model (B.G). Far from the storm's center, wind and pressure data come from the North American Mesoscale (NAM) model, a weather model run by the U.S. government for weather forecasting. The two sources of meteorology are blended at an intermediate distance away from the storm. Runs in this category use the model state at the end of run (A.2.GN) as an input to start from. As with the other two Hurricane Matthew Simulation Models (B.G) and (B.O), this category has: (B.N.1) One baseline run of Matthew. (B.N.2) One analysis that holds the data assimilation done on the outputs of the baseline run and provides the extra inputs necessary for the other two runs. (B.N.3) One assimilated run of Matthew with the default assimilation method (PAP method). (B.N.4) One assimilated run of Matthew with an alternative assimilation method (CON method). Baseline and assimilated simulations are identical except that the latter have additional assimilated inputs. More detail on all aspects of this are provided in the associated publication (see main description). The folders corresponding to each run name hold the full run directory's files, and may be helpful to more experienced users. The ".in" and ".out" input and output file lists. Information on model files can be found at http://adcirc.org/ .
- Simulation Input | (B.N.1) Baseline Run of Matthew with Intermediate Quality Meteorological InputsDescription:
See description in Simulation Model (B.N)
File Name - Simulation Output | (B.N.1) Baseline Run of Matthew with Intermediate Quality Meteorological InputsDescription:
See description in Simulation Model (B.N)
File Name
- Simulation Input | (B.N.3) Assimilated Run (PAP Method) of Matthew with Intermediate Quality Meteorological InputsDescription:
See description in Simulation Model (B.N)
File Name - Simulation Output | (B.N.3) Assimilated Run (PAP Method) of Matthew with Intermediate Quality Meteorological InputsDescription:
See description in Simulation Model (B.N)
File Name
- Simulation Input | (B.N.4) Assimilated Run (CON Method) of Matthew with Intermediate Quality Meteorological InputsDescription:
See description in Simulation Model (B.N)
File Name - Simulation Output | (B.N.4) Assimilated Run (CON Method) of Matthew with Intermediate Quality Meteorological InputsDescription:
See description in Simulation Model (B.N)
File Name
See description in Simulation Model (B.O)
File Name |
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This Category holds simulations using higher-quality meteorological inputs. These inputs were provided by Oceanweather Inc. They are produced using a model of the lowest portion of the Earth's atmosphere (a "planetary boundary layer model") and are conditioned to observed wind and pressure data using a form of data assimilation. Runs in this category use the model state at the end of run (A.2.O) as an input to start from. As with the other two Hurricane Matthew Simulation Models (B.G) and (B.N), this category has: (B.O.1) One baseline run of Matthew. (B.O.2) One analysis that holds the data assimilation done on the outputs of the baseline run and provides the extra inputs necessary for the other two runs. (B.O.3) One assimilated run of Matthew with the default assimilation method (PAP method). (B.O.4) One assimilated run of Matthew with an alternative assimilation method (CON method). Baseline and assimilated simulations are identical except that the latter have additional assimilated inputs. More detail on all aspects of this are provided in the associated publication (see main description). The folders corresponding to each run name hold the full run directory's files, and may be helpful to more experienced users. The ".in" and ".out" input and output file lists. Information on model files can be found at http://adcirc.org/ .
- Simulation Input | (B.O.1) Baseline Run of Matthew with High Quality Meteorological InputsDescription:
See description in Simulation Model (B.O)
File Name - Simulation Output | (B.O.1) Baseline Run of Matthew with High Quality Meteorological InputsDescription:
See description in Simulation Model (B.O)
File Name
- Simulation Input | (B.O.3) Assimilated Run (PAP Method) of Matthew with High Quality Meteorological InputsDescription:
See description in Simulation Model (B.O)
File Name - Simulation Output | (B.O.3) Assimilated Run (PAP Method) of Matthew with High Quality Meteorological InputsDescription:
See description in Simulation Model (B.O)
File Name
- Simulation Input | (B.O.4) Assimilated Run (CON Method) of Matthew with High Quality Meteorological InputsDescription:
See description in Simulation Model (B.O)
File Name - Simulation Output | (B.O.4) Assimilated Run (CON Method) of Matthew with High Quality Meteorological InputsDescription:
See description in Simulation Model (B.O)
File Name
This Category holds simulations used to initialize data assimilation-driven "forcing" in the model leading up to the runs in Simulation Model (D). The model state is saved at the end of these simulations to the fort.67.nc file so that other runs can start up where those runs ended with the same state. This category has: (C.P) Model initialization for the PAP method data assimilation forcing. (C.C) Model initialization for the CON method data assimilation forcing. Both simulations (C.P) and (C.C) have all the same input files, the difference is in source code changes, not visible in the files. More detail on all aspects of this are provided in the associated publication (see main description). The folders corresponding to each run name hold the full run directory's files, and may be helpful to more experienced users. The ".in" and ".out" input and output file lists. Information on model files can be found at http://adcirc.org/ .
- Simulation Input | (C.P) Model Initialization for Assimilation Method Tests (PAP Method)Description:
See description in Simulation Model (C)
File Name - Simulation Output | (C.P) Model Initialization for Assimilation Method Tests (PAP Method)Description:
See description in Simulation Model (C)
File Name
- Simulation Input | (C.C) Model Initialization for Assimilation Method Tests (CON Method)Description:
See description in Simulation Model (C)
File Name - Simulation Output | (C.C) Model Initialization for Assimilation Method Tests (CON Method)Description:
See description in Simulation Model (C)
File Name
This Category holds simulations used to compare the relative performance of the two assimilation methods tested. The only "forcing" in these simulations is from imposing the data assimilation fields derived in Analysis (B.G.2). Runs in this category use the model state at the end of runs (C.P) and (C.C) as an input to start from. This category has: (D.P) PAP method data assimilation forcing. (D.C) CON method data assimilation forcing. Both simulations have all the same input files, the difference is in source code changes, not visible in the files. More detail on all aspects of this are provided in the associated publication (see main description). The folders corresponding to each run name hold the full run directory's files, and may be helpful to more experienced users. The ".in" and ".out" input and output file lists. Information on model files can be found at http://adcirc.org/ .
- Simulation Input | (D.P) Assimilation Method Tests (PAP Method)Description:
See description in Simulation Model (D)
File Name - Simulation Output | (D.P) Assimilation Method Tests (PAP Method)Description:
See description in Simulation Model (D)
File Name