Wetlands are important components of natural landscapes, but their preliminary mapping remains challenging in spatially heterogeneous and highly transformed environments. This study combines preliminary mapping of potential wetlands with an assessment of their seasonal land surface temperature (LST) patterns within the Bug–Styr Plain, using a part of Sheptytska Hromada as a case study. Potential wetland complexes were delineated using Sentinel-2 imagery and supporting geospatial data and subsequently used as spatial units for thermal analysis. Seasonal LST was derived from Landsat 8 and Landsat 9 imagery for spring, summer, and autumn 2025. For each season, a median LST composite and the number of valid observations per pixel were calculated. Median LST within the potential wetland complexes was compared with that of areas outside the mapped complexes, referred to as the remaining study area. The potential wetland complexes covered approximately 300 ha, corresponding to 3.95% of the study area. Median LST for the entire study area was 21.69 °C in spring, 27.94 °C in summer, and 17.28 °C in autumn. Potential wetland complexes exhibited lower median LST than the remaining study area in all seasons, with the strongest thermal contrast observed in spring (- 3.31 °C), followed by summer (- 2.21 °C) and autumn (- 1.11 °C). The results indicate that seasonal LST can provide complementary information for characterising preliminary potential wetland areas, while not being sufficient to independently confirm wetland presence or validate their boundaries.
Abdelmajeed, A. Y. A., Albert-Saiz, M., Rastogi, A., & Juszczak, R. (2023). Cloud-based remote sensing for wetland monitoring – A review. Remote Sensing, 15(6), 1660. https://doi.org/10.3390/rs15061660
Andreichuk, Yu., Bezruchko, L., & Bilaniuk, V. (2021). Heoekolohiia Lvivskoi oblasti: monohrafiia [Geoecology of Lviv Region: Monograph] (Ye. Ivanov, Ed.). Prostir-M.
Demarquet, Q., Rapinel, S., Dufour, S., & Hubert-Moy, L. (2023). Long-term wetland monitoring using the Landsat archive: A review. Remote Sensing, 15(3), 820. https://doi.org/10.3390/rs15030820
Gorelick, N., Hancher, M., Dixon, M., Ilyushchenko, S., Thau, D., & Moore, R. (2017). Google Earth Engine: Planetary-scale geospatial analysis for everyone. Remote Sensing of Environment, 202, 18–27. https://doi.org/10.1016/j.rse.2017.06.031
Kaplan, G., & Avdan, U. (2017). Mapping and monitoring wetlands using Sentinel-2 satellite imagery. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, IV-4/W4, 271–277. https://doi.org/10.5194/isprs-annals-IV-4-W4-271-2017
Lefebvre, G., Davranche, A., Willm, L., Campagna, J., Redmond, L., Merle, C., Guelmami, A., & Poulin, B. (2019). Introducing WIW for detecting the presence of water in wetlands with Landsat and Sentinel satellites. Remote Sensing, 11(19), 2210. https://doi.org/10.3390/rs11192210
Marusazh, Kh., & Petryk, Yu. (2025). Monitoring land use and land cover with Sentinel-2 data: A case study of northern Ivano-Frankivsk region, Ukraine (2017–2024). GeoTerrace-2025: International Conference of Young Professionals, 1–5. https://doi.org/10.3997/2214-4609.202552002
Mukha, B. P. (2004). Buhsko-Styrska rivnyna [Bug–Styr Plain]. In Entsyklopediia Suchasnoi Ukrainy [Encyclopedia of Modern Ukraine]. Institute of Encyclopedic Research of the National Academy of Sciences of Ukraine. https://esu.com.ua/article-36458
Muro, J., Strauch, A., Heinemann, S., Steinbach, S., Thonfeld, F., Waske, B., & Diekkrüger, B. (2018). Land surface temperature trends as indicator of land use changes in wetlands. International Journal of Applied Earth Observation and Geoinformation, 70, 62–71. https://doi.org/10.1016/j.jag.2018.02.002
Ramsar Convention Secretariat. (2013). The Ramsar Convention manual: A guide to the Convention on Wetlands (6th ed.).