Distribution data for Menyanthes trifoliata and Zizania latifolia in the Mizorogaike Marsh in 2015 and 2023, and orthomosaic images

Using an UAV platform, the changes in vegetation caused by deer impacts in the marshland were monitored. The study was conducted at Mizorogaike Marsh (Kita-ku, Kyoto City, Kyoto Prefecture; Area: approximately 0.08 km²), using Menyanthes trifoliata and Zizania latifolia as indicator species. UAV-based aerial imagery was captured in October 2015 and 2023, as these species are easily distinguishable from other plants during this period. In October, when it is easy to distinguish M. trifoliata and Z. latifolia from other plants, aerial imagery of the wetland were taken using a UAV, and orthomosaic images for 2015 and 2023 were created. First, polygons for M. trifoliata and Z. latifolia were generated using AI-based image recognition. Then, using GIS, the detection results (polygons) were visually inspected and corrected. Regarding the final patch polygon data for M. trifoliata and Z. latifolia, field verification indicated that for both 2015 and 2023, nearly all distributions in the survey area were detected through AI-based image recognition followed by visual correction. However, no final accuracy verification of the patch polygon data using field survey data was performed. Note that the orthomosaic image was uploaded to an external site due to its large file size.Menyanthes_trifoliata_2015.zipThis is polygon data of M. trifoliata created using orthomosaic imagery from October 16, 2015. It is in Shapefile format, with the coordinate system being JGD2011 / Japan Plane Rectangular CS VI (EPSG::6674). For details on the creation method, refer to Niwa (2025).Menyanthes_trifoliata_2023.zipThis is polygon data of M. trifoliata created using orthomosaic imagery from October 18, 2023. It is in Shapefile format, with the coordinate system being JGD2011 / Japan Plane Rectangular CS VI (EPSG::6674). For details on the creation method, refer to Niwa (2025).Zizania_latifolia_2015.zipThis is polygon data of Z. latifolia created using orthomosaic imagery from October 16, 2015. It is in Shapefile format, with the coordinate system being JGD2011 / Japan Plane Rectangular CS VI (EPSG::6674). For details on the creation method, refer to Niwa (2025).Zizania_latifolia_2023.zipThis is polygon data of Z. latifolia created using orthomosaic imagery from October 18, 2023. It is in Shapefile format, with the coordinate system being JGD2011 / Japan Plane Rectangular CS VI (EPSG::6674). For details on the creation method, refer to Niwa (2025).ortho_20151016.tifThis orthomosaic image was created from aerial imagery captured by a DJI Phantom 3 Professional on October 16, 2015. The coordinate system is JGD2011 / Japan Plane Rectangular CS VI (EPSG::6674), with a ground resolution of 2.92 cm/px. Due to the large file size, it has been uploaded to an external site.https://map.openaerialmap.org/#/135.77041625976562、35.05866663931347、10/user/5c881c8040734a00053daad4/67402302a957e70001091f2a.tif?_k=hwaiydortho_20231018.tifThis orthomosaic image was created from aerial imagery captured on October 18, 2023, using a DJI Mavic 3T. The coordinate system is JGD2011 / Japan Plane Rectangular CS VI (EPSG::6674), with a ground resolution of 0.564 cm/px. Due to the large file size, it has been uploaded to an external site.https://map.openaerialmap.org/#/135.7697625、35.058515、10/user/5c881c8040734a00053daad4/67402302a957e70001091f2b.tif?_k=ra0kk6