Diurnal course of the main heat balance components of a marshy meadow in the lower Biebrza River Valley

• Autorzy: Kleniewska M. , Golaszewski D. , Majewski G. , Szporak-Wasilewska S. , Rozbicka K. , Rozbicki T.
• Języki publikacji: EN

Abstrakty

EN

Understanding the heat balance structure of the surface of a marshy meadow and the dynamics of its changes were the objectives of observations carried out in the valley of the Biebrza River. A simplified eddy covariance system allowed measurements of the density of four main energy balance components: latent (LE) and sensible (S) heat fluxes, soil heat flux (G), and net radiation (Rn). The mean half-hourly values of the net radiation during our observations ranged from -51 W·m⁻² (nighttime) to 309 W·m⁻² (daytime). The amount of available energy was used for evaporation in the first place – the latent heat flux assumed the highest values in the outgoing portion of the heat balance throughout the entire data series. Mean half-hourly values of latent heat varied between -90 W·m⁻² (at 3. p.m.) and 194 W·m⁻² (at 1 a.m.). The values of sensible heat flux density were relatively low and ranged from -16 W·m⁻² to 96 W·m⁻². During the day, the soil heat flux density ranged from 2 W·m⁻² to 36 W·m⁻², and the flux was most often directed from the active surface into the soil profile. At night, it assumed values within the range -24 to -5 W·m⁻².

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2015
• Tom: 24
• Numer: 3
• Opis fizyczny: p.945-950,fig.,ref.

Twórcy

autor

Kleniewska M.

• Division of Meteorology and Climatology, Department of Hydraulic Engineering, Warsaw University of Life Sciences, Nowoursynowska 166, 02-787 Warsaw, Poland

autor

Golaszewski D.

• Division of Meteorology and Climatology, Department of Hydraulic Engineering, Warsaw University of Life Sciences, Nowoursynowska 166, 02-787 Warsaw, Poland

autor

Majewski G.

• Division of Meteorology and Climatology, Department of Hydraulic Engineering, Warsaw University of Life Sciences, Nowoursynowska 166, 02-787 Warsaw, Poland

autor

Szporak-Wasilewska S.

• Laboratory Water Centre, Warsaw University of Life Sciences, Poland

autor

Rozbicka K.

• Division of Meteorology and Climatology, Department of Hydraulic Engineering, Warsaw University of Life Sciences, Nowoursynowska 166, 02-787 Warsaw, Poland

autor

Rozbicki T.

• Division of Meteorology and Climatology, Department of Hydraulic Engineering, Warsaw University of Life Sciences, Nowoursynowska 166, 02-787 Warsaw, Poland

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Identyfikatory

DOI

10.15244/pjoes/30932