VARIATION IN SEDIMENT TEMPERATURE IN THE CLAROMECÓ CREEK BASIN

MARÍA ELIZABETH CARBONE MARÍA CINTIA PÍCCOLO GERARDO M. E. PERILLO

Revista Geofísica

Lugar: DF Mexico; Año: 2007

0252-9769

The thermal variation of the sediments and the energy balance components are computed for a sandy beach in the Claromeco estuary located in the south – east of the Buenos Aires province Argentina. The study covers a seven days period in March 1999. Soil, air and water temperatures were measured continuously employing thermistors at different heights and depth. An air sensor was installed in a shady, ventiled location 1.9 m above the sand. Soil temperature sensors were buried at three levels below the sediment surface at a depth of 0.05m, 0.15m and 0.30m. The water sensor was located 0.40m depth in the water column. The measurement time interval was 10 minutes. Meteorological observation were also obtained from a meteorological station located in the study area. The calculated mean value of thermal diffusivity was 0.60 x 10-6 m2 , the thermal conductivity was 1.83 W m-1 K-1 . The ground heat flux averaged is 83 W m-2 . The latent heat flux is 212 W m-2 . The mean net radiation with 345 W m-2 .The net radiation and the latent heat flux resulted the more important components of the balance. The components of the energy balance of the Claromeco estuary show a greater energic transference from the atmosphere to the sediments. Keywords: Energy balance, sediments, estuary