Removal of Positive Elevation Bias of Digital Elevation Models for Sea-Level Rise Planning
Digital elevation models (DEMs) based on LiDAR surveys provide critical information for predicting the vulnerability of coastal areas to sea-level rises. Due to the poor penetration of LiDAR pulses in marsh vegetation, bare-earth DEMs for coastal wetlands are often subject to positive elevation bias...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-03-01
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| Series: | Data |
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| Online Access: | https://www.mdpi.com/2306-5729/4/1/46 |
| _version_ | 1798003918865694720 |
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| author | Elizabeth Burke Watson LeeAnn Haaf Kirk Raper Erin Reilly |
| author_facet | Elizabeth Burke Watson LeeAnn Haaf Kirk Raper Erin Reilly |
| author_sort | Elizabeth Burke Watson |
| collection | DOAJ |
| description | Digital elevation models (DEMs) based on LiDAR surveys provide critical information for predicting the vulnerability of coastal areas to sea-level rises. Due to the poor penetration of LiDAR pulses in marsh vegetation, bare-earth DEMs for coastal wetlands are often subject to positive elevation bias, and thus underestimate vulnerability. This data publication includes comprehensive elevation surveys from seven coastal wetlands in coastal New Jersey, and an evaluation of the accuracy and positive elevation bias of each publically available DEM. Resampling the DEMs at a coarser resolution, replacing cell values using the minimum value in a wider search window (4 m), removed this positive elevation bias with no loss of accuracy. |
| first_indexed | 2024-04-11T12:16:36Z |
| format | Article |
| id | doaj.art-c0055c8dcd0841f19935208707f233cd |
| institution | Directory Open Access Journal |
| issn | 2306-5729 |
| language | English |
| last_indexed | 2024-04-11T12:16:36Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Data |
| spelling | doaj.art-c0055c8dcd0841f19935208707f233cd2022-12-22T04:24:19ZengMDPI AGData2306-57292019-03-01414610.3390/data4010046data4010046Removal of Positive Elevation Bias of Digital Elevation Models for Sea-Level Rise PlanningElizabeth Burke Watson0LeeAnn Haaf1Kirk Raper2Erin Reilly3Department of Biodiversity, Earth & Environmental Sciences and the Academy of Natural Sciences, Drexel University, Philadelphia, PA 19103, USAPartnership for the Delaware Estuary, Wilmington, DE 19801, USAAcademy of Natural Sciences, Drexel University, Philadelphia, PA 19103, USAThe Barnegat Bay Partnership, Toms River, NJ 08754, USADigital elevation models (DEMs) based on LiDAR surveys provide critical information for predicting the vulnerability of coastal areas to sea-level rises. Due to the poor penetration of LiDAR pulses in marsh vegetation, bare-earth DEMs for coastal wetlands are often subject to positive elevation bias, and thus underestimate vulnerability. This data publication includes comprehensive elevation surveys from seven coastal wetlands in coastal New Jersey, and an evaluation of the accuracy and positive elevation bias of each publically available DEM. Resampling the DEMs at a coarser resolution, replacing cell values using the minimum value in a wider search window (4 m), removed this positive elevation bias with no loss of accuracy.https://www.mdpi.com/2306-5729/4/1/46LiDARpost-processingcoastal marshsigned error |
| spellingShingle | Elizabeth Burke Watson LeeAnn Haaf Kirk Raper Erin Reilly Removal of Positive Elevation Bias of Digital Elevation Models for Sea-Level Rise Planning Data LiDAR post-processing coastal marsh signed error |
| title | Removal of Positive Elevation Bias of Digital Elevation Models for Sea-Level Rise Planning |
| title_full | Removal of Positive Elevation Bias of Digital Elevation Models for Sea-Level Rise Planning |
| title_fullStr | Removal of Positive Elevation Bias of Digital Elevation Models for Sea-Level Rise Planning |
| title_full_unstemmed | Removal of Positive Elevation Bias of Digital Elevation Models for Sea-Level Rise Planning |
| title_short | Removal of Positive Elevation Bias of Digital Elevation Models for Sea-Level Rise Planning |
| title_sort | removal of positive elevation bias of digital elevation models for sea level rise planning |
| topic | LiDAR post-processing coastal marsh signed error |
| url | https://www.mdpi.com/2306-5729/4/1/46 |
| work_keys_str_mv | AT elizabethburkewatson removalofpositiveelevationbiasofdigitalelevationmodelsforsealevelriseplanning AT leeannhaaf removalofpositiveelevationbiasofdigitalelevationmodelsforsealevelriseplanning AT kirkraper removalofpositiveelevationbiasofdigitalelevationmodelsforsealevelriseplanning AT erinreilly removalofpositiveelevationbiasofdigitalelevationmodelsforsealevelriseplanning |