{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","abstract":[{"text":"Study region: The Vilcanota Urubamba Basin in southern Peru includes fragile wetland ecosystems that play a key role in mountain hydrology and support grazing for Andean communities.\r\nStudy focus: Mapping of wetlands variability is missing, limiting our understanding of their characteristics, seasonality and link with the cryosphere. We characterise wetland distribution, seasonality and persistence and evaluate their spatial association with glaciers and seasonal snow. Using Landsat 7 and 8 imagery, we build three-month seasonal land cover maps from 2013 to 2022 using a Random Forest classification and an Albedo Retrieval approach.\r\nNew hydrological insights for the region: Wetland area decreases by 38% from the end of the wet season (October to December) to the end of the dry season (July to September). Pixel transitions indicate that wetlands primarily transform to and from agricultural and pasture lands. Highly persistent wetlands are located above 4600 m a.s.l. and closer to glaciers than less persistent wetlands. We identified three wetland seasonal drying patterns. Basins with delayed and slow dry-out wetlands were more common at higher elevations but were not always in glacierised catchments, suggesting meltwater may maintain wetlands in the early dry season. We provide the first large-scale picture of wetland seasonality, and the basis for modelling the processes that sustain wetlands in tropical high mountains.","lang":"eng"}],"doi":"10.1016/j.ejrh.2026.103808","scopus_import":"1","publication_status":"published","license":"https://creativecommons.org/licenses/by/4.0/","_id":"22677","acknowledgement":"Joshua Castro acknowledges the support and funding of the Swiss Government Excellence Scholarships (ESKAS-Nr: 2022.0416) and the Doc. Mobility program by the University of Fribourg. Catriona Fyffe acknowledges support from the Marie Skłodowska-Curie Action project EPIC, which was funded by the European Union (grant number 101105480). Francesca Pellicciotti and Vinisha Varghese acknowledge support from the SNSF-funded PASTURE project, grant no. 202604. Emily Potter was jointly funded by a Leverhulme Trust ECR fellowship and NERC grant NE/X004031/1. We thank Miguel Vargas from the Universidad Nacional San Antonio Abad del Cusco for providing the validation points dataset used in this work.","OA_place":"publisher","month":"07","has_accepted_license":"1","year":"2026","ddc":["550"],"oa":1,"oa_version":"Published Version","file":[{"date_updated":"2026-08-11T06:45:46Z","relation":"main_file","file_id":"22680","content_type":"application/pdf","creator":"dernst","success":1,"file_size":13155535,"access_level":"open_access","date_created":"2026-08-11T06:45:46Z","file_name":"2026_JourHydrology_Castro.pdf","checksum":"6a6545fc11b6c7948cdede877d19e3f3"}],"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"publication":"Journal of Hydrology: Regional Studies","title":"Andean wetlands: Seasonal variability and their interactions with the cryosphere","volume":67,"citation":{"ama":"Castro J, Fyffe CL, Shaw T, et al. Andean wetlands: Seasonal variability and their interactions with the cryosphere. <i>Journal of Hydrology: Regional Studies</i>. 2026;67. doi:<a href=\"https://doi.org/10.1016/j.ejrh.2026.103808\">10.1016/j.ejrh.2026.103808</a>","ista":"Castro J, Fyffe CL, Shaw T, Miles E, Potter E, Hoelzle M, Varghese V, Pellicciotti F. 2026. Andean wetlands: Seasonal variability and their interactions with the cryosphere. Journal of Hydrology: Regional Studies. 67, 103808.","ieee":"J. Castro <i>et al.</i>, “Andean wetlands: Seasonal variability and their interactions with the cryosphere,” <i>Journal of Hydrology: Regional Studies</i>, vol. 67. Elsevier, 2026.","short":"J. Castro, C.L. Fyffe, T. Shaw, E. Miles, E. Potter, M. Hoelzle, V. Varghese, F. Pellicciotti, Journal of Hydrology: Regional Studies 67 (2026).","mla":"Castro, Joshua, et al. “Andean Wetlands: Seasonal Variability and Their Interactions with the Cryosphere.” <i>Journal of Hydrology: Regional Studies</i>, vol. 67, 103808, Elsevier, 2026, doi:<a href=\"https://doi.org/10.1016/j.ejrh.2026.103808\">10.1016/j.ejrh.2026.103808</a>.","apa":"Castro, J., Fyffe, C. L., Shaw, T., Miles, E., Potter, E., Hoelzle, M., … Pellicciotti, F. (2026). Andean wetlands: Seasonal variability and their interactions with the cryosphere. <i>Journal of Hydrology: Regional Studies</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.ejrh.2026.103808\">https://doi.org/10.1016/j.ejrh.2026.103808</a>","chicago":"Castro, Joshua, Catriona Louise Fyffe, Thomas Shaw, Evan Miles, Emily Potter, Martin Hoelzle, Vinisha Varghese, and Francesca Pellicciotti. “Andean Wetlands: Seasonal Variability and Their Interactions with the Cryosphere.” <i>Journal of Hydrology: Regional Studies</i>. Elsevier, 2026. <a href=\"https://doi.org/10.1016/j.ejrh.2026.103808\">https://doi.org/10.1016/j.ejrh.2026.103808</a>."},"date_updated":"2026-08-11T06:48:28Z","supplementarymaterial":"yes","date_published":"2026-07-30T00:00:00Z","quality_controlled":"1","DOAJ_listed":"1","researchdata_availability":"yes","das_tickbox":"1","file_date_updated":"2026-08-11T06:45:46Z","language":[{"iso":"eng"}],"type":"journal_article","OA_type":"gold","project":[{"grant_number":"101105480","name":"ExPloring the ecohydrological Impacts of a changing Cryosphere in the Peruvian Andes","_id":"bdbe6627-d553-11ed-ba76-b5c9eedf278f"}],"intvolume":"        67","dataavailabilitystatement":"Research Data and script is available in https://doi.org/10.5281/zenodo.18508189.","author":[{"full_name":"Castro, Joshua","first_name":"Joshua","last_name":"Castro"},{"first_name":"Catriona Louise","id":"001b0422-8d15-11ed-bc51-cab6c037a228","last_name":"Fyffe","full_name":"Fyffe, Catriona Louise"},{"full_name":"Shaw, Thomas","orcid":"0000-0001-7640-6152","first_name":"Thomas","id":"3caa3f91-1f03-11ee-96ce-e0e553054d6e","last_name":"Shaw"},{"first_name":"Evan","last_name":"Miles","full_name":"Miles, Evan"},{"last_name":"Potter","first_name":"Emily","full_name":"Potter, Emily"},{"last_name":"Hoelzle","first_name":"Martin","full_name":"Hoelzle, Martin"},{"last_name":"Varghese","first_name":"Vinisha","full_name":"Varghese, Vinisha"},{"first_name":"Francesca","last_name":"Pellicciotti","id":"b28f055a-81ea-11ed-b70c-a9fe7f7b0e70","full_name":"Pellicciotti, Francesca","orcid":"0000-0002-5554-8087"}],"article_type":"original","publisher":"Elsevier","publication_identifier":{"eissn":["2214-5818"]},"status":"public","article_processing_charge":"Yes","article_number":"103808","day":"30","department":[{"_id":"FrPe"}],"date_created":"2026-08-11T06:19:46Z"}