Three years of weekly DEMs, aerial orthomosaics and surveyed shoreline positions at Waikīkī Beach, Hawai‘i
Abstract In this dataset, we present 128 coastal surveys conducted between 2018 and 2021 at Kahaloa Beach, also known as the Royal Hawaiian Beach, in Waikīkī, Hawai‘i. Surveys were conducted on a near-weekly basis, providing a 0.5 m digital elevation model, an orthorectified image mosaic with 0.03 m...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-03-01
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| Series: | Scientific Data |
| Online Access: | https://doi.org/10.1038/s41597-024-03160-z |
| _version_ | 1797233841735204864 |
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| author | Anna B. Mikkelsen Kristian K. McDonald Julianne Kalksma Zachary H. Tyrrell Charles H. Fletcher |
| author_facet | Anna B. Mikkelsen Kristian K. McDonald Julianne Kalksma Zachary H. Tyrrell Charles H. Fletcher |
| author_sort | Anna B. Mikkelsen |
| collection | DOAJ |
| description | Abstract In this dataset, we present 128 coastal surveys conducted between 2018 and 2021 at Kahaloa Beach, also known as the Royal Hawaiian Beach, in Waikīkī, Hawai‘i. Surveys were conducted on a near-weekly basis, providing a 0.5 m digital elevation model, an orthorectified image mosaic with 0.03 m resolution, and shoreline vectors at MHHW and MSL, along with a surveyed shoreline position for each survey. We captured overlapping images using a small Unoccupied Aerial System (sUAS), processing the imagery with photogrammetric software to produce orthomosaics and Digital Terrain Models (DTM). Simultaneously, the shoreline position and reference points for sUAS-derived products were surveyed using total station and rod-mounted surveying prism. A quality assessment of 424 randomly sampled points across two surveys showed normally distributed errors of DTM elevations (µ1 = 0.0060 m; σ 1 = 0.0998 m; µ2 = 0.0035 m; σ 2 = 0.0680). Elevation uncertainties were quantified as 95% confidence intervals (±0.0130 m and ±0.0095 m). These data are intended to encourage research on reef-fringed beaches and provide a dataset for evaluating the accuracy of satellite-derived shorelines at reef-fringed beaches. |
| first_indexed | 2024-04-24T16:22:35Z |
| format | Article |
| id | doaj.art-9e1d4622857e476b90f006ecadc189ce |
| institution | Directory Open Access Journal |
| issn | 2052-4463 |
| language | English |
| last_indexed | 2024-04-24T16:22:35Z |
| publishDate | 2024-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Data |
| spelling | doaj.art-9e1d4622857e476b90f006ecadc189ce2024-03-31T11:10:18ZengNature PortfolioScientific Data2052-44632024-03-011111810.1038/s41597-024-03160-zThree years of weekly DEMs, aerial orthomosaics and surveyed shoreline positions at Waikīkī Beach, Hawai‘iAnna B. Mikkelsen0Kristian K. McDonald1Julianne Kalksma2Zachary H. Tyrrell3Charles H. Fletcher4Department of Earth Sciences, School of Ocean and Earth Science and Technology, University of Hawai‘i at MānoaDepartment of Earth Sciences, School of Ocean and Earth Science and Technology, University of Hawai‘i at MānoaDepartment of Ocean and Resources Engineering, School of Ocean and Earth Science and Technology, University of Hawai‘i at MānoaDepartment of Earth Sciences, School of Ocean and Earth Science and Technology, University of Hawai‘i at MānoaDepartment of Earth Sciences, School of Ocean and Earth Science and Technology, University of Hawai‘i at MānoaAbstract In this dataset, we present 128 coastal surveys conducted between 2018 and 2021 at Kahaloa Beach, also known as the Royal Hawaiian Beach, in Waikīkī, Hawai‘i. Surveys were conducted on a near-weekly basis, providing a 0.5 m digital elevation model, an orthorectified image mosaic with 0.03 m resolution, and shoreline vectors at MHHW and MSL, along with a surveyed shoreline position for each survey. We captured overlapping images using a small Unoccupied Aerial System (sUAS), processing the imagery with photogrammetric software to produce orthomosaics and Digital Terrain Models (DTM). Simultaneously, the shoreline position and reference points for sUAS-derived products were surveyed using total station and rod-mounted surveying prism. A quality assessment of 424 randomly sampled points across two surveys showed normally distributed errors of DTM elevations (µ1 = 0.0060 m; σ 1 = 0.0998 m; µ2 = 0.0035 m; σ 2 = 0.0680). Elevation uncertainties were quantified as 95% confidence intervals (±0.0130 m and ±0.0095 m). These data are intended to encourage research on reef-fringed beaches and provide a dataset for evaluating the accuracy of satellite-derived shorelines at reef-fringed beaches.https://doi.org/10.1038/s41597-024-03160-z |
| spellingShingle | Anna B. Mikkelsen Kristian K. McDonald Julianne Kalksma Zachary H. Tyrrell Charles H. Fletcher Three years of weekly DEMs, aerial orthomosaics and surveyed shoreline positions at Waikīkī Beach, Hawai‘i Scientific Data |
| title | Three years of weekly DEMs, aerial orthomosaics and surveyed shoreline positions at Waikīkī Beach, Hawai‘i |
| title_full | Three years of weekly DEMs, aerial orthomosaics and surveyed shoreline positions at Waikīkī Beach, Hawai‘i |
| title_fullStr | Three years of weekly DEMs, aerial orthomosaics and surveyed shoreline positions at Waikīkī Beach, Hawai‘i |
| title_full_unstemmed | Three years of weekly DEMs, aerial orthomosaics and surveyed shoreline positions at Waikīkī Beach, Hawai‘i |
| title_short | Three years of weekly DEMs, aerial orthomosaics and surveyed shoreline positions at Waikīkī Beach, Hawai‘i |
| title_sort | three years of weekly dems aerial orthomosaics and surveyed shoreline positions at waikiki beach hawai i |
| url | https://doi.org/10.1038/s41597-024-03160-z |
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