Published June 21, 2023 | Version v1
Journal article Open

Evaporation over a glacial lake in Antarctica

  • 1. Finnish Meteorological Institute, Helsinki, Finland
  • 2. Institute of Earth Sciences (ICT), Institute for Advanced Studies and Research (IIFA), University of Évora, Évora, Portugal; Earth Remote Sensing Laboratory (EaRSLab), Institute for Advanced Studies and Research (IIFA), University of Évora, Évora, Portugal
  • 3. Indian Institute of Remote Sensing, Dehradun, India

Description

The study provides estimates of summertime evaporation
over a glacial lake located in the Schirmacher oasis,
Dronning Maud Land, East Antarctica. Lake Zub (alternately
named Lake Priyadarshini and referred to throughout as Lake
Zub/Priyadarshini) is the second-largest lake in the oasis,
and its maximum depth is 6 m. The lake is also among the
warmest glacial lakes in the oasis, and it is free of ice during
almost 2 summer months. The summertime evaporation over
the ice-free lake was measured using the eddy covariance
method and estimated on the basis of five indirect methods
(bulk-aerodynamic method and four combination equations).
We used meteorological and hydrological measurements collected
during a field experiment carried out in 2018. The
eddy covariance method was considered the most accurate,
and the evaporation was estimated to be 114mm for the period
from 1 January to 7 February 2018 (38 d) on the basis of
this method. The average daily evaporation was 3.0mmd

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Additional details

Funding

PolarRES – Polar Regions in the Earth System 101003590
European Commission