---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '22677'
abstract:
- lang: eng
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."
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.'
article_number: '103808'
article_processing_charge: Yes
article_type: original
author:
- first_name: Joshua
full_name: Castro, Joshua
last_name: Castro
- first_name: Catriona Louise
full_name: Fyffe, Catriona Louise
id: 001b0422-8d15-11ed-bc51-cab6c037a228
last_name: Fyffe
- first_name: Thomas
full_name: Shaw, Thomas
id: 3caa3f91-1f03-11ee-96ce-e0e553054d6e
last_name: Shaw
orcid: 0000-0001-7640-6152
- first_name: Evan
full_name: Miles, Evan
last_name: Miles
- first_name: Emily
full_name: Potter, Emily
last_name: Potter
- first_name: Martin
full_name: Hoelzle, Martin
last_name: Hoelzle
- first_name: Vinisha
full_name: Varghese, Vinisha
last_name: Varghese
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
orcid: 0000-0002-5554-8087
citation:
ama: 'Castro J, Fyffe CL, Shaw T, et al. Andean wetlands: Seasonal variability and
their interactions with the cryosphere. Journal of Hydrology: Regional Studies.
2026;67. doi:10.1016/j.ejrh.2026.103808'
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. Journal of Hydrology: Regional Studies. Elsevier.
https://doi.org/10.1016/j.ejrh.2026.103808'
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.” Journal
of Hydrology: Regional Studies. Elsevier, 2026. https://doi.org/10.1016/j.ejrh.2026.103808.'
ieee: 'J. Castro et al., “Andean wetlands: Seasonal variability and their
interactions with the cryosphere,” Journal of Hydrology: Regional Studies,
vol. 67. Elsevier, 2026.'
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.'
mla: 'Castro, Joshua, et al. “Andean Wetlands: Seasonal Variability and Their Interactions
with the Cryosphere.” Journal of Hydrology: Regional Studies, vol. 67,
103808, Elsevier, 2026, doi:10.1016/j.ejrh.2026.103808.'
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).'
das_tickbox: '1'
dataavailabilitystatement: Research Data and script is available in https://doi.org/10.5281/zenodo.18508189.
date_created: 2026-08-11T06:19:46Z
date_published: 2026-07-30T00:00:00Z
date_updated: 2026-08-11T06:48:28Z
day: '30'
ddc:
- '550'
department:
- _id: FrPe
doi: 10.1016/j.ejrh.2026.103808
file:
- access_level: open_access
checksum: 6a6545fc11b6c7948cdede877d19e3f3
content_type: application/pdf
creator: dernst
date_created: 2026-08-11T06:45:46Z
date_updated: 2026-08-11T06:45:46Z
file_id: '22680'
file_name: 2026_JourHydrology_Castro.pdf
file_size: 13155535
relation: main_file
success: 1
file_date_updated: 2026-08-11T06:45:46Z
has_accepted_license: '1'
intvolume: ' 67'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: bdbe6627-d553-11ed-ba76-b5c9eedf278f
grant_number: '101105480'
name: ExPloring the ecohydrological Impacts of a changing Cryosphere in the Peruvian
Andes
publication: 'Journal of Hydrology: Regional Studies'
publication_identifier:
eissn:
- 2214-5818
publication_status: published
publisher: Elsevier
quality_controlled: '1'
researchdata_availability: yes
scopus_import: '1'
status: public
supplementarymaterial: yes
title: 'Andean wetlands: Seasonal variability and their interactions with the cryosphere'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 67
year: '2026'
...