<?xml version="1.0" encoding="UTF-8"?><resource xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.3/metadata.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-4"><identifier identifierType="DOI">10.1594/PANGAEA.954538</identifier><creators><creator><creatorName>Cohen, Marcelo Cancela Lisboa</creatorName><givenName>Marcelo Cancela Lisboa</givenName><familyName>Cohen</familyName><nameIdentifier schemeURI="http://orcid.org/" nameIdentifierScheme="ORCID">0000-0001-9892-4719</nameIdentifier></creator></creators><titles><title>Ground Control Points of tidal flats at Port Fourchon-Louisiana, USA</title></titles><publisher>PANGAEA</publisher><publicationYear>2023</publicationYear><subjects><subject subjectScheme="Parameter">Ground control point</subject><subject subjectScheme="Parameter">LONGITUDE</subject><subject subjectScheme="Parameter">LATITUDE</subject><subject subjectScheme="Parameter">ELEVATION</subject><subject subjectScheme="Parameter">Longitude, difference</subject><subject subjectScheme="Parameter">Latitude, difference</subject><subject subjectScheme="Parameter">Elevation, difference</subject></subjects><resourceType resourceTypeGeneral="Dataset">Dataset</resourceType><sizes><size>356 data points</size></sizes><formats><format>text/tab-separated-values</format></formats><rightsList><rights rightsURI="https://creativecommons.org/licenses/by/4.0/" schemeURI="https://spdx.org/licenses/" rightsIdentifierScheme="SPDX" rightsIdentifier="CC-BY-4.0">Creative Commons Attribution 4.0 International</rights></rightsList><descriptions><description descriptionType="Abstract">Ground Control Points (GCPs) of tidal flats at Port Fourchon-Louisiana-USA with longitude, latitude, elevation and differences (m) between latitudes longitudes and elevation obtained in Oct/2017, Mar/2018, Nov/2018, Nov/2019, Nov/2021 and Jul/2022 by aerophotogrammetry from a DJI Phantom 4 Advanced and RTK drone and those obtained in the field by a Trimble Catalyst receiver, supported by a differential Global Navigation Satellite System with a millimetric correction (precision ± 2 cm) and an electronic Self Leveling Horizontal Rotary Laser (precision ± 2 cm). These data were used to evaluate the digital elevation model (DEM) acquired by photogrammetry. The vertical differences between GCPs and the DEM were evaluated by equation Zdif = ZDEM - Zgrd, where Zdif = the vertical differences, ZDEM = the Z value of the DEM, and Zgrd = the Z value of the GCPs.</description></descriptions><geoLocations><geoLocation><geoLocationBox><westBoundLongitude>-90.27262901</westBoundLongitude><eastBoundLongitude>-90.15326900000002</eastBoundLongitude><southBoundLatitude>29.108411</southBoundLatitude><northBoundLatitude>29.40220097</northBoundLatitude></geoLocationBox></geoLocation></geoLocations><fundingReferences><fundingReference><funderName>Conselho Nacional de Desenvolvimento Científico e Tecnológico</funderName><funderIdentifier funderIdentifierType="Crossref Funder ID">https://doi.org/10.13039/501100003593</funderIdentifier><awardNumber>CNPQ 403239/2021-4</awardNumber><awardTitle>Impacts of the climate change on the boreal and austral American mangroves limits during the Holocene and Anthropocene</awardTitle></fundingReference></fundingReferences></resource>