i
Estimating Coastal Digital Elevation Model Uncertainty
-
2018
-
Source: Journal of Coastal Research, 34(6), 1382-1397.
[PDF-1.55 MB]
Details:
-
Journal Title:Journal of Coastal Research
-
Personal Author:
-
NOAA Program & Office:
-
Description:Integrated bathymetric-topographic digital elevation models (DEMs) are representations of Earth's solid surface that extend across the coastal land-water interface. DEMs are fundamental to the modeling of coastal processes, including tsunami, storm-surge, and sea-level-rise inundation. Vertical errors in coastal DEMs are deviations in elevation values from the actual seabed or land surface, which originate from the (1) elevation measurements, (2) datum transformation that converts bathymetric and topographic measurements to a common vertical reference system, (3) spatial resolution of the DEM, and (4) interpolative gridding technique that estimates elevations in areas unconstrained by measurements. The magnitude and spatial distribution of the vertical errors are typically unknown, and a DEM uncertainty surface is a statistical assessment of the likely magnitude of these errors. The National Oceanic and Atmospheric Administration National Centers for Environmental Information develops DEMs for United States' coastal communities. This study describes a methodology to derive uncertainty surfaces that estimate coastal DEM vertical errors at the DEM cell-level. A coastal DEM south of Sarasota, Florida is the case study for deriving uncertainty surfaces. Results indicate that large vertical uncertainty exists in deeper waters offshore with sparse echo-sounder measurements, and small vertical uncertainty exists on flat terrains with dense light detection and ranging measurements. The estimated uncertainty can be propagated into the modeling of coastal processes that utilize DEMs by deriving numerous plausible DEM realizations within the uncertainty bounds. The numerous DEMs realizations can then produce an ensemble of coastal modeling results, and in turn, better-informed coastal management decisions.
-
Source:Journal of Coastal Research, 34(6), 1382-1397.
-
DOI:
-
Document Type:
-
Rights Information:CC BY
-
Compliance:Submitted
-
Main Document Checksum:urn:sha256:b9547cef0ff5681dbd17d27e4c6a3af91bb1eb338875bf03e63cd506ef17dcfb
-
Download URL:
-
File Type:
Related Documents
-
- Personal Author:Huntrieser, H. ;Lichtenstern, M....2016 | Journal of Geophysical Research-Atmospheres, 121(11), 6638-6668.Description:During the Deep Convective Clouds and Chemistry (DC3) experiment in summer 2012, airborne measurements were performed in the anvil inflow/outflow of t...Personal Author:Jordan, C. E. ;Pszenny, A. A. P....2015 | Journal of Geophysical Research-Atmospheres, 120(2), 678-694.Description:The Nitrogen, Aerosol Composition, and Halogens on a Tall Tower campaign (February-March 2011) near Boulder, Colorado, investigated nighttime ClNO2 pr...Personal Author:Baidar, S. ;Tucker, S. C....2018 | Journal of Atmospheric and Oceanic Technology, 35(10), 2099-2116.Description:A two-look airborne Doppler wind lidar operating at the 532-nm laser wavelength, the Green Optical Autocovariance Wind Lidar (GrOAWL), was built and f...Personal Author:Turner, D. D. ;Shupe, M. D....2018 | Journal of Applied Meteorology and Climatology, 57(4), 953-968.Description:A 2-yr cloud microphysical property dataset derived from ground-based remote sensors at the Atmospheric Radiation Measurement site near Barrow, Alaska...Personal Author:Lacour, A. ;Chepfer, H....2018 | Journal of Climate, 31(22), 9293-9312.Description:Using lidar and radiative flux observations from space and ground, and a lidar simulator, we evaluate clouds simulated by climate models over the Gree...Personal Author:Keppel-Aleks, G. ;Washenfelder, R. A.2016 | Geophysical Research Letters, 43(18), 9984-9993.Description:Aerosol optical depth (AOD) has been shown to influence the global carbon sink by increasing the fraction of diffuse light, which increases photosynth...2018 | Atmos. Chem. Phys., 18, 635–653, 2018Description:Organic aerosols (OA) that strongly absorb solar radiation in the near-UV are referred to as brown carbon (BrC). The sources, evolution, and optical p...Personal Author:Li, Zhenglong ;Li, Jun...2018 | Advances in Atmospheric Sciences, 35(10), 1217-1230.Description:Accurate atmospheric temperature and moisture information with high temporal/spatial resolutions are two of the key parameters needed in regional nume...Personal Author:Geronimo, Rollan ;Franklin, Erik...2018 | Remote Sensing, 10(10), 23.Description:Fisheries surveys over broad spatial areas are crucial in defining and delineating appropriate fisheries management areas. Yet accurate mapping and tr...2017 | Journal of Geophysical Research-Atmospheres, 122(2), 1312-1337.Description:A series of deep stratospheric intrusions in late May 2013 increased the daily maximum 8 h surface ozone (O-3) concentrations to more than 70 parts pe...2018 | Space Weather-the International Journal of Research and Applications, 16(9), 1190-1201.Description:Between 4 and 10 September 2017, multiple solar eruptions occurred from active region AR12673. NOAA's and NASA's well-instrumented spacecraft observed...2018 | Space Weather-the International Journal of Research and Applications, 16(12), 2079-2102.Description:Geomagnetic indices are convenient quantities that distill the complicated physics of some region or aspect of near-Earth space into a single paramete...2018 | Journal of Geophysical Research-Space Physics, 123(8), 6394-6423.Description:This paper presents observations of electromagnetic ion cyclotron (EMIC) waves from multiple data sources during the four Geospace Environment Modelin...2018 | Journal of Geophysical Research-Space Physics, 123(2), 1260-1278.Description:We present characteristics of current layers in the off-equatorial near-Earth plasma sheet boundary observed with high time-resolution measurements fr...2018 | Space Weather-the International Journal of Research and Applications, 16(11), 1686-1701.Description:To address challenges of assessing space weather modeling capabilities, the Community Coordinated Modeling Center is leading a newly established Inter...2018 | Space Weather-the International Journal of Research and Applications, 16(9), 1245-1260.Description:Accurate forecasting of the properties of coronal mass ejections (CMEs) as they approach Earth is now recognized as an important strategic objective f...2018 | Space Weather-the International Journal of Research and Applications, 16(12), 1912-1920.Description:Data-model validation of ground magnetic perturbation forecasts, specifically of the time rate of change of surface magnetic field, dB/dt, is a critic...2018 | Space Weather-the International Journal of Research and Applications, 16(11), 1806-1816.Description:The specification and prediction of density changes in the thermosphere is a key challenge for space weather observations and modeling, because it is ...2018 | Geophysical Research Letters, 45(1), 335-345.Description:During the last glacial period, precipitation minus evaporation increased across the currently arid western United States. These pluvial conditions ha...Personal Author:Young, Alisa H. ;Knapp, Kenneth R....2018 | Earth System Science Data, 10(1), 583-593.Description:This paper describes the new global long-term International Satellite Cloud Climatology Project (ISCCP) H-series climate data record (CDR). The H-seri...