Scott, F., Antolinez, J.A., McCall, R.T., Storlazzi, C.D., Reniers, A., and Pearson, S., 2020, Coral reef profiles for wave-runup prediction: U.S. Geological Survey data release, https://doi.org/10.5066/P9C39WNE.
Summary
This data release includes representative cluster profiles (RCPs) from a large (>24,000) selection of coral reef topobathymetric cross-shore profiles (Scott and others, 2020). We used statistics, machine learning, and numerical modelling to develop the set of RCPs, which can be used to accurately represent the shoreline hydrodynamics of a large variety of coral reef-lined coasts around the globe. In two stages, the data were reduced by clustering cross-shore profiles based on morphology and hydrodynamic response to typical wind and swell wave conditions. By representing a large variety of coral reef morphologies with a reduced number of RCPs, a computationally feasible number of numerical model simulations can be done to obtain wave-runup [...]
Summary
This data release includes representative cluster profiles (RCPs) from a large (>24,000) selection of coral reef topobathymetric cross-shore profiles (Scott and others, 2020). We used statistics, machine learning, and numerical modelling to develop the set of RCPs, which can be used to accurately represent the shoreline hydrodynamics of a large variety of coral reef-lined coasts around the globe. In two stages, the data were reduced by clustering cross-shore profiles based on morphology and hydrodynamic response to typical wind and swell wave conditions. By representing a large variety of coral reef morphologies with a reduced number of RCPs, a computationally feasible number of numerical model simulations can be done to obtain wave-runup estimates. The RCPs identified here can be combined with probabilistic tools that can provide an enhanced prediction given a multivariate wave and water level climate and reef ecology state.
These data accompany the following publication: Scott, F., Antolinez, J.A., McCall, R.T., Storlazzi, C.D., Reniers, A., and Pearson, S., 2020, Hydro-morphological characterization of coral reefs for wave runup prediction: Frontiers in Marine Science, https://doi.org/10.3389/fmars.2020.000361.
Low-lying tropical coasts fronted by coral reefs are threatened by the effects of climate change, sea-level rise, and flooding caused by waves. However, the reefs on these coasts differ widely in their shape, size, and physical characteristics; the wave and water level conditions affecting these coastlines also vary in space and time. These factors make it difficult to predict flooding caused by waves along coral reef-lined coasts. Here we use a large (>24,000) dataset of measured coral reef topobathymetric cross-shore profiles, statistics, machine learning, and numerical modelling to develop a set of representative cluster profiles (RCPs) that can be used to accurately represent the shoreline hydrodynamics of a large variety of coral reef-lined coasts around the globe. Such a tool can be used for longer term assessments of climate change impact assessments and effectiveness of reef restoration projects, as well as for the provision of coastal flood potential predictions in a simplified (global) early warning system. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
[Authors = "Fred Scott, Curt Storlazzi, Robert McCall, Jose A. A. Antolinez, Stuart Pearson, Ad Reniers", Creation Date = "23-Apr-2020 18:47:05", File Description = "This file contains the coral reef topobathymetric cross-shore profiles used in the study titled\n \"Hydro-morphological characterization of coral reefs for wave runup prediction\". The 500 initial\n representative cluster profiles (iRCPs) are also included, formed from a cluster analysis using\n K-medians. Lastly, the file contains the XBeach Non-Hydrostatic (XBNH) results for four wave loading conditions on each of the iRCPs,\n including the R2%, setup at the shoreline and swash seperated in infragravity and sea-swell components.", Data Description = "The coral reef topobathymetric cross-shore profiles are derived from a combination of field studies\n ranging in dates from 2001 to 2016. A more thorough description of the dataset can be found in: \n Storlazzi, C. D., Reguero, B. G., Cole, A. D., Lowe, E., Shope, J. B., Gibbs, A. E., et al. (2019).\n Rigorously valuing the role of U.S. coral reefs in coastal hazard risk reduction.\n Tech. rep., US Geological Survey. doi:10.3133/ofr20191027\n All profiles were extended to the length of the longest profile using a depth value of -30 m.\n The first occurence of -30 m depth is the true end of each measured profile.", _NCProperties = "version=1|netcdflibversion=4.6.1|hdf5libversion=1.8.12"]
title
ReefProfile_Database.nc
variables
name
Profile_depths
units
Description = "The depth values of the coral reef topobathymetric cross-shore profiles included in the study. The profiles have been pre-processed to be aligned at the shoreline reference point (X=0 at depth = 0). The profiles do not include a land component (no beach slope)"
long_name
Units = "meters"
name
Profile_cross-shore
units
Description = "The cross-shore spacing for all profiles and iRCPs."
long_name
Units = "meters"
name
Locations
units
Description = "The country of each profile."
name
Latitude_st
units
Description = "The latitude of the shoreline position of the profile (Cross-shore = 0)."
name
Longitude_st
units
Description = "The longitude of the shoreline position of the profile (Cross-shore = 0)."
name
Latitude_end
units
Description = "The latitude of the offshore position of the profile. This is the position corresponding to the first depth of -30 m (ignoring filler values)."
name
Longitude_end
units
Description = "The longitude of the offshore position of the profile. This is the position corresponding to the first depth of -30 m (ignoring filler values)."
name
UTMzone
name
UTM_easting_st
units
Description = "The UTM easting of the shoreline position of the profile (Cross-shore = 0)."
name
UTM_northing_st
units
Description = "The UTM northing of the shoreline position of the profile (Cross-shore = 0)."
name
UTM_easting_end
units
Description = "The UTM easting of the offshore position of the profile. This is the position corresponding to the first depth of -30 m (ignoring filler values)."
name
UTM_northing_end
units
Description = "The UTM northing of the offshore position of the profile. This is the position corresponding to the first depth of -30 m (ignoring filler values)."
name
iRCP_depths
units
Description = "The 500 iRCPs formed using the clustering algorithm K-means."
long_name
Units = "meters"
name
XBNH_Loading_Condition_ID
units
Description = "The IDs of the four Loading Conditions used in XBNH. The XBNH inputs and outputs are placed in four columns, matching these loading condition IDs."
name
Hs
units
Description = "The offshore significant wave heights for the four Loading Conditions used in XBNH."
long_name
Units = "meters"
name
Steepness
units
Description = "The wave steepness (Hs/L) for the four Loading Conditions used in XBNH."
long_name
Units = "-"
name
BeachSlope
units
Description = "The beach slope for the four Loading Conditions used in XBNH."
long_name
Units = "-"
name
Friction
units
Description = "The dimensionless friction coefficent for the four Loading Conditions used in XBNH."
long_name
Units = "-"
name
R2percent
units
Description = "The XBNH output of R2% for the 500 iRCPS under each of the four Loading Conditions."
long_name
Units = "meters"
name
Setup
units
Description = "The XBNH output of setup for the 500 iRCPS under each of the four Loading Conditions."
long_name
Units = "meters"
name
HFswash
units
Description = "The XBNH output of sea-swell swash for the 500 iRCPS under each of the four Loading Conditions."
long_name
Units = "meters"
name
IGswash
units
Description = "The XBNH output of infragravity swash for the 500 iRCPS under each of the four Loading Conditions."
