Characterizing and comparing surface and free-air atmosphere temperature profiles in an Andean sub-tropical mountain catchment

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dc.catalogadorjlo
dc.contributor.authorIbañez Reyes, María De Los Ángeles
dc.contributor.authorGironas León, Jorge Alfredo
dc.contributor.authorGarreaud, René
dc.contributor.authorMuñoz, Ricardo
dc.contributor.authorOberli Graf, Christian Robert
dc.contributor.authorChadwick, Cristián
dc.contributor.authorMeier, Claudio
dc.date.accessioned2026-01-21T18:31:24Z
dc.date.available2026-01-21T18:31:24Z
dc.date.issued2026
dc.description.abstractScarce but crucial for hydrological analysis and modelling, near-surface air temperatures (SAT) in mountainous regions are often assumed to match free-air temperature (FAT), despite inherent discrepancies. This study characterizes sub-tropical Andean SAT profiles and compares them with FAT using 3 years of 10 min resolution temperature data from a dense meteorological network located within an Andean Mountain catchment, alongside nearby aircraft operations and radiosonde ascents. Results reveal diurnal and seasonal cycles in the near-surface air temperature lapse rate (STLR) and surface-derived 0°C isotherm altitude (H0MS), with marked contrasts between wet and dry conditions. Under wet conditions, FAT and SAT profiles converge, while under dry conditions, aircraft-FAT lapse rates are gentler than STLR, and the derived H0MS is lower than aircraft-FAT estimates during the cold season. Radiosonde-H0 simultaneously estimated aligns with H0MS, but measurements before precipitation events differ by an average of ~20%.
dc.format.extent17 páginas
dc.fuente.origenORCID
dc.identifier.doi10.1080/02626667.2025.2598340
dc.identifier.issn2150-3435
dc.identifier.urihttps://doi.org/10.1080/02626667.2025.2598340
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/107823
dc.information.autorucEscuela de Ingeniería; Ibañez Reyes, María De Los Ángeles; S/I; 213740
dc.information.autorucEscuela de Ingeniería; Gironas León, Jorge Alfredo; 0000-0002-6933-2658; 1681
dc.information.autorucEscuela de Ingeniería; Oberli Graf, Christian Robert; 0000-0003-3068-096X; 63125
dc.issue.numero1
dc.language.isoen
dc.nota.accesocontenido parcial
dc.revistaHydrological Sciences Journal
dc.rightsacceso restringido
dc.subjectSub-tropical Andes Mountains
dc.subjectTemperature lapse rate
dc.subjectHigh-densitysensor network
dc.subjectMountains
dc.subject0°C isotherm
dc.subject.ddc620
dc.titleCharacterizing and comparing surface and free-air atmosphere temperature profiles in an Andean sub-tropical mountain catchment
dc.typeartículo
dc.volumen71
sipa.codpersvinculados213740
sipa.codpersvinculados1681
sipa.codpersvinculados63125
sipa.trazabilidadORCID;2026-01-19
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