20180206
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FGDC CSDGM Metadata
FALSE
slr_passive_fld_2_pt_0_ft
418662.319400
940278.901700
2094192.630000
2458612.452300
1
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GCS_North_American_1983_HARN
Linear Unit: Meter (1.000000)
NAD_1983_HARN_UTM_Zone_4N
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slr_passive_fld_2_pt_0_ft
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Coordinates defining the features.
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Length of feature in internal units.
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Area of feature in internal units squared.
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Charles Fletcher
University of Hawaii Coastal Geology Group (CGG)
Unknown
fletcher@soest.hawaii.edu
20220818
ArcGIS Metadata
1.0
Pacific Islands Ocean Observing System (PacIOOS)
Unknown
info@pacioos.org
None specified
GeoServer
This URL provides access to this dataset via GeoServer, which offers multiple output formats and an OpenLayers viewer.
Open Geospatial Consortium Web Map Service (WMS)
Open Geospatial Consortium Web Feature Service (WFS)
Open Geospatial Consortium Web Map Service - Cached (WMS-C)
GeoExplorer
This URL provides a viewer for this dataset.
Hawaii Sea Level Rise Viewer
This URL provides a viewer for this dataset.
Hawaii Sea Level Rise Vulnerability and Adaptation Report
This dataset was created in support of the Hawaii Sea Level Rise Vulnerability and Adaptation Report (2017).
http://geo.pacioos.hawaii.edu/geoserver/PACIOOS/hi_hcgg_all_slr_flood_2075/ows?service=WMS&version=1.3.0&request=GetCapabilities
http://pacioos.org/shoreline/slr-hawaii/
http://climateadaptation.hawaii.gov/wp-content/uploads/2017/12/SLR-Report_Dec2017.pdf
http://geo.pacioos.hawaii.edu/geoserver/
http://geo.pacioos.hawaii.edu/geoserver/PACIOOS/gwc/service/wms?service=WMS&version=1.1.1&request=GetCapabilities&tiled=true
http://geo.pacioos.hawaii.edu/geoexplorer/
http://geo.pacioos.hawaii.edu/geoserver/PACIOOS/hi_hcgg_all_slr_flood_2075/ows?service=WFS&version=1.0.0&request=GetCapabilities
File Geodatabase Feature Class
slr_passive_fld_2_pt_0_ft
2017-12-21
University of Hawaii Coastal Geology Group (CGG)
Charles Fletcher
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Passive flooding was modeled by the University of Hawaii Coastal Geology Group using a modified "bathtub" approach following methods described in Cooper et al. 2013. The passive flooding model provides an initial assessment of low-lying areas susceptible to flooding by sea level rise. Passive flooding includes areas that are hydrologically connected to the ocean (marine flooding) and low-lying areas that are not hydrologically connected to the ocean (groundwater). Data used in modeling passive flooding include global sea level rise projections, digital elevation models (DEM), and the mean higher high water (MHHW) datum from local tide gauges. DEMs used in this study are freely available from NOAA and the U.S. Army Corps of Engineers (USACE). DEMs are derived from aerial light detection and ranging (LiDAR) data. The horizontal and vertical positional accuracies of the DEMs conform to flood hazard mapping standards of the Federal Emergency Management Agency (FEMA 2012). The IPCC AR5 RCP8.5 sea level rise scenario was used in modeling exposure to passive flooding from sea level rise at 0.5, 1.1, 2.0, and 3.2 feet. This particular layer depicts passive flooding using the 2.0-ft (0.5991-m) sea level rise scenario. While the RCP8.5 predicts that this scenario would be reached by the year 2075, questions remain around the exact timing of sea level rise and recent observations and projections suggest a sooner arrival. Passive flooding was modeled using the DEMs in geographic information systems software to identify areas below a certain sea level height (flooded by sea level rise) when raising water levels above current Mean Higher High Water (MHHW) tidal datum. In other words, water levels are shown as they would appear during MHHW, or the average higher high water height of each tidal day. The area flooded was derived by subtracting a tidal surface model from the DEM. Assumptions and Limitations: In many areas around the State, representing sea level rise from passive marine flooding will likely produce an underestimate of the area inundated or permanently submerged because the model does not account for waves and coastal erosion, important processes along Hawaii's highly dynamic coasts. For this reason, coastal erosion and annual high wave flooding (provided separately) are also modeled to provide a more comprehensive picture of the extent of hazard exposure. The passive flooding model does not explicitly include flooding through storm drain systems and other underground infrastructure, which would contribute to flooding in many low-lying areas identified in the model. The DEMs used in the modeling depict a smoothed topographic surface and do not identify basements, parking garages, and other development below ground that would be affected by marine and groundwater flooding with sea level rise. The passive flooding model is intended to provide an initial screening tool for sea level rise vulnerability. More detailed hydrologic and engineering modeling may be necessary to fully assess passive marine flooding hazards at the scale of individual properties. </SPAN><SPAN><SPAN>Data compiled by the Pacific Islands Ocean Observing System (PacIOOS) for the Hawaii Sea Level Rise Viewer hosted at </SPAN></SPAN><A href="https://pacioos.org/shoreline/slr-hawaii/"><SPAN><SPAN>https://pacioos.org/shoreline/slr-hawaii/</SPAN></SPAN></A><SPAN>. For further information, please see the Hawaii Sea Level Rise Vulnerability and Adaptation Report: </SPAN><A href="https://climateadaptation.hawaii.gov/wp-content/uploads/2017/12/SLR-Report_Dec2017.pdf"><SPAN>https://climateadaptation.hawaii.gov/wp-content/uploads/2017/12/SLR-Report_Dec2017.pdf</SPAN></A></P></DIV></DIV></DIV>
Estimated extent of areas susceptible to passive flooding, modeled using a 2.0 foot sea level rise scenario.
Charles Fletcher
University of Hawaii Coastal Geology Group (CGG)
Unknown
fletcher@soest.hawaii.edu
http://pacioos.org/metadata/browse/hi_hcgg_all_slr_flood_2075.png
Sample image.
PNG
GCMD Location Keywords
Continent > North America > United States Of America > Hawaii
Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands
GCMD Science Keywords
Earth Science > Climate Indicators > Atmospheric/Ocean Indicators > Sea Level Rise > Inundation
Earth Science > Human Dimensions > Environmental Impacts
Earth Science > Oceans > Coastal Processes > Sea Level Rise
Earth Science > Human Dimensions > Natural Hazards > Floods
Earth Science > Climate Indicators > Atmospheric/Ocean Indicators > Sea Level Rise > Inundation
Earth Science > Human Dimensions > Environmental Impacts
Continent > North America > United States Of America > Hawaii
Earth Science > Oceans > Coastal Processes > Sea Level Rise
Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands
Earth Science > Human Dimensions > Natural Hazards > Floods
Unknown
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Based on the methodology of sea level rise modeling used in the Hawaii Sea Level Rise Vulnerability and Adaptation Report (Report) and the Hawaii Sea Level Rise Viewer (Viewer), having gone through peer review and publication in the Nature Journal Scientific Reports, the results of this study are sufficiently validated to be appropriately used in land management decisions as the best available information as of the date of publication of the Report, December 2017, consistent with the intent of Act 83 SLH 2014 as amended. This Report is intended to provide a state-wide assessment of Hawaii's vulnerability to sea level rise. The location of projected impacts and economic costs from damages are estimates based on a particular sea level rise scenario. The hazard and vulnerability data and maps provided herein are based on observational data and computer-based models as described in the Report and in published research (Anderson et al., 2018). As with all models, it is important to understand the methods, assumptions, limitations, and uncertainties of the methods used. The risks associated with use or non-use of the results are assumed by the user.</SPAN></P></DIV></DIV></DIV>
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Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388
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SOEST, UH CGG, PacIOOS
dataset
EPSG
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