Heat budget estimates for Lake Ikeda, Japan

Momii, Kazuro; Ito, Yuji

doi:10.1016/j.jhydrol.2008.08.004

Cited by 51 publications

(45 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This value is in agreement with measurements made in similar humid environments. For example, near a lake located in mid latitudes it was found an average B of 0.4 (MOMII and ITO, 2008) and a similar value about 0.4-0.5 was obtained by MCJANNET et al (2011) at Logan's Dam, which is an irrigation water storage. We also analyzed previously available data of sensible and latent heat fluxes in the area of Venice lagoon (MARTANO, 1996) finding a Bowen ratio of about 1 in winter period.…”

Section: Post-processing Of Datasupporting

confidence: 52%

Characterisation of PM2.5 concentrations and turbulent fluxes on a island of the Venice lagoon using high temporal resolution measurements

Donateo¹,

Contini²,

Belosi³

et al. 2012

metz

View full text Add to dashboard Cite

This work presents an analysis of PM2.5 concentrations and vertical turbulent fluxes on an island of the Venice lagoon. Data were collected during three measurement campaigns in spring, summer and winter periods. Measurements were taken with a high-resolution optical PM2.5 detector, coupled with a micrometeorological station that allowed the evaluation of the vertical turbulent fluxes of PM2.5 using the eddy-correlation technique. The main objective of this paper is to analyse the daily and seasonal pattern in PM2.5 concentrations and fluxes and to discuss their correlation with the main meteorological and micrometeorological parameters using high temporal resolution measurements. Observed data showed a seasonal pattern in turbulent fluxes with daytime average positive value during winter and negative during summer. Deposition velocities, ranged from -60 to 20 mm/s, appeared to be mainly influenced by atmospheric stability. There were larger emissions in cases of high wind velocities blowing from water sector indicating a significant potential contribution of sea spray to PM2.5 fluxes. The local atmospheric circulation, due to the orography of the area, was characterised by diurnal winds coming from the Adriatic Sea and nocturnal wind coming from the Alps. This circulation influenced deposition velocity creating an increase of negative fluxes in the morning at the starting of the sea breeze. A diurnal pattern in concentration has been observed and it is similar for all three measurement campaigns, with higher concentrations in nocturnal periods. The daily pattern was investigated in terms of its correlation with meteorological and micro-meteorological parameters, and was found highly correlated with the diurnal pattern of boundary layer height (BLH) and with relative humidity.

show abstract

Section: Post-processing Of Datasupporting

confidence: 52%

Characterisation of PM2.5 concentrations and turbulent fluxes on a island of the Venice lagoon using high temporal resolution measurements

Donateo¹,

Contini²,

Belosi³

et al. 2012

metz

View full text Add to dashboard Cite

show abstract

“…Those data might be useful for further studies on processes determining lake dynamics. Such information is crucial for water management [31].…”

Section: Discussion Of Resultsmentioning

confidence: 99%

Changeability of Accumulated Heat Content in Alpine-Type Lakes

Choiński¹,

Ptak²,

Strzelczak³

2015

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

“…Rs is the net solar radiation at the air-water interface (W/m 2 ), f i is the fraction of energy contained in the i th bandwidth (dimensionless), and η i represents the composite attenuation coefficient of the i th bandwidth (m´1) [39,40]. The values of f i and η i are presented in Table 1.…”

Section: Governing Equationsmentioning

confidence: 99%

Investigation of Temperature Dynamics in Small and Shallow Reservoirs, Case Study: Lake Binaba, Upper East Region of Ghana

Abbasi

Annor

Giesen

2016

Water

View full text Add to dashboard Cite

An unsteady fully three-dimensional model of Lake Binaba (a shallow small reservoir) in semi-arid Upper East Region of Ghana has been developed to simulate its temperature dynamics. The model developed is built on the Reynolds Averaged Navier-Stokes (RANS) equations, utilizing the Boussinesq approach. As the results of the model are significantly affected by the physical conditions on the boundaries, allocating appropriate boundary conditions, particularly over a water surface, is essential in simulating the lake's thermal structure. The thermal effects of incoming short-wave radiation implemented as a heat source term in the temperature equation, while the heat fluxes at the free water surface, which depend on wind speed, air temperature, and atmospheric stability conditions are considered as temperature boundary condition. The model equations were solved using OpenFOAM CFD toolbox. As the flow is completely turbulent, which is affected by the complex boundary conditions, a new heat transfer solver and turbulence model were developed to investigate the spatial and temporal distribution of temperature in small and shallow inland water bodies using improved time-dependent boundary conditions. The computed temperature values were compared with four days of observed field data. Simulated and observed temperature profiles show reasonable agreement where the root mean square error (RMSE) over the simulation period ranges from 0.11 to 0.44˝C in temporal temperature profiles with an average value of 0.33˝C. Results indicate that the model is able to simulate the flow variables and the temperature distribution in small inland water bodies with complex bathymetry.

show abstract

Heat budget estimates for Lake Ikeda, Japan

Cited by 51 publications

References 19 publications

Characterisation of PM2.5 concentrations and turbulent fluxes on a island of the Venice lagoon using high temporal resolution measurements

Characterisation of PM2.5 concentrations and turbulent fluxes on a island of the Venice lagoon using high temporal resolution measurements

Changeability of Accumulated Heat Content in Alpine-Type Lakes

Investigation of Temperature Dynamics in Small and Shallow Reservoirs, Case Study: Lake Binaba, Upper East Region of Ghana

Contact Info

Product

Resources

About