High-Elevation Meteorological Datasets from the Quelccaya Ice Cap and Surrounding Sites in the Cordillera Vilcanota, Peru

This dataset contains quality-controlled high-elevation meteorological and cryospheric observations from the Cordillera Vilcanota, including the Quelccaya Ice Cap and surrounding sites. The dataset includes automatic weather station (AWS) observations from five sites spanning elevations from 4,895 to 6,349 m, together with snow-pit and snow-density measurements, precipitation-phase observations from Parsivel disdrometers, and radiosonde. The AWS datasets are provided primarily at hourly resolution. Missing observations are retained as missing values and are not interpolated. Depending on the station, variables include air temperature, relative humidity, relative humidity with respect to ice, atmospheric pressure, wind speed and direction, incoming and outgoing radiations, snow depth, precipitation, soil temperature, soil moisture, and undercatch-corrected precipitation. Files and station data 1 Ausangate_20220725_20260722.csv Ausangate AWS, 6,349 m a.s.l. Location: -13.78978°, -71.23375° Period: 26 July–21 November 2022 Variables: Tair, Tair_max, Tair_min, RH, RHi, PRESS, WS, WD, WS_max, SWin, SWin_max, SWout, SnDep. Murmurani_Alto_20120404_20170709.csv Murmurani Alto AWS, 5,050 m a.s.l. Location: -13.81105°, -71.09148° Period: 4 April 2012–9 July 2017 Variables: Tair, RH, RHi, PRESS, SWin, Tsoil, SM, SnDep. Osjollo_Anante_20120407_20150721.csv Osjollo Anante Glacier AWS, 5,540 m a.s.l. Location: -13.76714°, -71.08914° Period: 7 April 2012–21 July 2015 Variables: Tair, RH, RHi, WS, WD. Quelccaya_20141014_20250928.csv Quelccaya Ice Cap AWS, 5,650 m a.s.l. Location: -13.91972°, -70.81645° Period: 14 October 2014–28 September 2025 Variables: Tair, RH, RHi, WS, WD, WS_max, SWin, SWin_max, SnDep, Precip, corrected_P. Sibinacocha_20170718_20260816.csv Lake Sibinacocha AWS, 4,895 m a.s.l. Location: -13.92230°, -71.01805° Period: 18 July 2017–16 December 2025 Variables: Tair, RH, RHi, Precip, Precip24, corrected_P, modelled_phase, SWin, SWin_max, SnDep. Additional files contain Parsivel disdrometer raw observations, snow-pit and snow-density profiles, and radiosonde soundings. Snow-pit observations was collected adjacent to Quelccaya AWSs. Radiosondes were released during field campaigns in November 2014 and March 2018 between Nevado Ausangate and the Quelccaya Ice Cap and provide vertical profiles of atmospheric conditions.