New Zealand Journal of Marine and Freshwater Research abstracts
Thermal structure and energy budget in a small high mountain lake: La
Caldera, Sierra Nevada, Spain
Miguel Rodríguez-Rodríguez
University Pablo de Olavide
Carretera de Utrera Km. 1
Seville 41013, Spain
email: mrodrod@dex.upo.es
Enrique Moreno-Ostos
Inmaculada de Vicente
Luis Cruz-Pizarro
Water Research Institute
University of Granada
C/ Ramón y Cajal s/n
Granada 18071, Spain
Sergio Luiz Rodrigues da Silva*
University Santa Cecília
Rua Oswaldo Cruz no. 266
Santos SP 11045-907, Brasil
*Present address: Water Research Institute, University of
Granada, C/ Ramón y Cajal s/n, Granada 18071, Spain.
Abstract This work examines the diel change of energy
storage and its associated patterns of thermal stratification during the
ice-free period in a high mountain lake (La Caldera Lake, Sierra Nevada,
Spain), in response to meteorological conditions. Bihourly data have been
implemented to a standard methodology of surface heat exchange calculations
in lakes. Strong variations have been observed on the diverse components
of the energy budget at different time scales, ranging from diel to seasonal.
Additionally, time-series analyses have been applied to reveal the underlying
periodicities involved in relation to the different variables studied. The
results obtained from this study provided realistic conditions for the environmental
modelling of such processes, which are very sensitive in time scale.
Keywords energy budget; diel variations; time-series
analysis; high mountain lake
M03053; Online publication date 24 November 2004 Received 16 September
2003, accepted 14 June 2004
New Zealand Journal of Marine and Freshwater Research, 2004, Vol. 38:
879–894
0028–8330/04/3805–0879 © The Royal Society of New Zealand 2004
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