MITR [Underwater Soundscape and Aerial Mapping of a Pari Island Lagoon]

This dataset contains multimodal environmental observations collected from Pari Island Lagoon, Indonesia, combining passive acoustic recordings and drone-based aerial imagery. The dataset was acquired to document temporal and spatial characteristics of the lagoon environment using complementary underwater and aerial observations. The passive acoustic dataset comprises one-week recording periods from two spatially distinct locations within Pari Island Lagoon. Site 1 was monitored from 23-29 April 2026 using a 5-min recording interval, resulting in 1,512 final WAV files. Site 2 was monitored from 23-29 July 2026 using a 10-min recording interval, resulting in 968 final WAV files. The recordings were acquired using a fixed hydrophone deployment positioned within the lagoon water column. The aerial imagery dataset contains drone-based observations acquired over two surveyed areas, referred to as Northern Pari and Southern Kongsi. The surveys were conducted using a DJI Mavic 3 Enterprise at an altitude of 100 m, with 80% forward overlap and 75% sidelap. The survey configuration produced a ground sampling distance of approximately 4 cm. Supporting metadata are provided to describe the acoustic recordings, aerial imagery, sampling locations, acquisition periods, and relevant acquisition parameters. A README and data dictionary are included to facilitate interpretation and reuse of the dataset. During the peer-review period, the dataset files are provided under restricted access. Access may be granted to authorized reviewers upon request. Following completion of the associated publication process, the dataset is intended to be made openly accessible.