Evaporation and energy budget in Lake Vegoritis, Greece

Gianniou, Soultana K.; Antonopoulos, Vassilis Z.

doi:10.1016/j.jhydrol.2007.08.007

Cited by 113 publications

(98 citation statements)

References 39 publications

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“…The pattern of the annual variation was consistent with the pattern of the air-surface temperature di¤erence (Fig. 7a) (Gianniou and Antonopoulos 2007).…”

Section: Heat Balance a Annual Variation In Surface Temperaturesupporting

confidence: 82%

“…The heat and water balance over a lake surface has di¤erent features from a land surface (Blanken et al 2003;Gianniou and Antonopoulos 2007;Xu et al 2009;Haginoya et al 2009). Lakes are also important as water resources (Hounam 1973;Momii and Ito 2008).…”

Section: Introductionmentioning

confidence: 99%

“…As a part of the water cycle, lake evaporation has been estimated for many lakes around the world in order to enable appropriate management of water resources, e‰cient use of water, and improved understanding of the e¤ect of climate change on regional energy balances (Yamamoto et al 1972;Morton 1976;Tasumi 2005;Croley 2005;Gianniou and Antonopoulos 2007;Xu et al 2009;Haginoya et al 2009). Previous studies have elucidated the characteristics of lake heat balance (Tasumi 2005;Yamamoto et al 1972); the thermophysical properties of lake and land surfaces di¤er mainly in that a lake consists of water (fluid) and water is transparent to visible light.…”

Section: Introductionmentioning

confidence: 99%

“…These di¤erences lead to marked di¤erences in the seasonal variation of heat balance, and in the daily variation of convective activity and local circulation (Stull 1988). The seasonal variation of lake evaporation is closely related to lake depth (Yamamoto et al 1972;Kondo 1964, 1968;Morton 1967;Hounam 1973;Gianniou and Antonopoulos 2007).…”

Section: Introductionmentioning

confidence: 99%

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Features of Air-Lake Interaction in Heat and Water Exchanges over Erhai Lake

Haginoya

Fujii

Sun

et al. 2012

Journal of the Meteorological Society of Japan

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This paper presents the characteristics of air-lake-land interactions, which arise from the di¤erent thermal properties of lake and land surfaces, as observed at Erhai Lake in Yunnan Province, China. The heat balance over the lake was estimated by using data on the lake surface obtained from the Erhai automatic weather station and solving the surface heat balance equation (HBE) for a mixed layer. Meteorological station data were also used to estimate the long-term heat balance. The surface temperature from in situ observations was compared with that from satellite observations, and the two results were found to be in reasonably good agreement. The satellite data were used to validate the heat balance calculation. The mixed layer depth of Erhai Lake was 6 m in 2008 and 8 m from 2003 to 2008. Lake heat storage showed large annual variation of 50 W m À2 in amplitude, with a maximum from March to April and a minimum in November. The phases of the latent heat, the sensible heat, and the di¤erence between surface and air temperatures tended to be delayed on the lake as compared with the land. The phase lag in the seasonal variation of evaporation was found to clearly depend on lake depth. The daily change in convection over the lake-land system was greatest in the daytime over the mountainous area and in the nighttime over the lake area. These features arose from di¤erences in the thermal properties of the lake and land surfaces. Non-dimensional evaporation increased with increasing annual mean air temperature, and there was no systematic di¤erence between regions. Nearly 92% of solar radiation was absorbed by the lake within a depth of 2 m. From this finding, the daily range of the lake's surface temperature was quantitatively determined to be about 5 C.

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“…The pattern of the annual variation was consistent with the pattern of the air-surface temperature di¤erence (Fig. 7a) (Gianniou and Antonopoulos 2007).…”

Section: Heat Balance a Annual Variation In Surface Temperaturesupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Features of Air-Lake Interaction in Heat and Water Exchanges over Erhai Lake

Haginoya

Fujii

Sun

et al. 2012

Journal of the Meteorological Society of Japan

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“…The dominant geology in the area comprises metamorphic siliceous rocks and calcareous formations (Skoulikidis et al, 2008). The climate is semi-dry, Mediterranean, with two distinct warm-dry and cold-wet periods, while during winter, the lake remains ice-free (Gianniou & Antonopoulos, 2007). Average annual air temperature and annual precipitation from 1961 to 2004 were 12.2 ± 0.08°C and 654 ± 24 mm, respectively.…”

Section: Case Studiesmentioning

confidence: 99%

Ecological impacts of global warming and water abstraction on lakes and reservoirs due to changes in water level and related changes in salinity

et al. 2015

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According to the Intergovernmental Panel on Climate Change report released in September 2014, unprecedented changes in temperature and precipitation patterns have been recorded globally in recent decades and further change is predicted to occur in the near future, mainly as the result of human activity. In particular, projections show that the Mediterranean climate zone will be markedly affected with significant implications for lake water levels and salinity. This may be exacerbated by increased demands for irrigation water. Based on long-term data from seven lakes and reservoirs covering a geographical gradient of 52°of latitudes and a literature review, we discuss how changes in water level and salinity related to climate change and water abstraction affect the ecosystem structure, function, biodiversity and ecological state of lakes and reservoirs. We discuss mitigation measures to counteract the negative effects on ecological status that are likely to result from changes in climate and water abstraction practices. Finally, we highlight research required to improve knowledge of the impacts of anthropogenically induced changes on lake water level and consequent changes in salinity.

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Evaporation and surface energy budget over the largest high‐altitude saline lake on the Qinghai‐Tibet Plateau

Huang

et al. 2016

JGR Atmospheres

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Interactions between lakes and the atmosphere at high altitudes are still poorly understood due to difficulty in accessibility of direct measurements. This is particularly true for the Qinghai‐Tibet Plateau (QTP), where approximately 50% of the lakes in China are located. Continuous direct measurements of the water flux and surface energy budget were made over the largest high‐altitude saline lake in China, Qinghai Lake on the northeastern QTP, using the eddy covariance method from 11 May 2013 to 10 May 2015. Results indicated that annual evaporation of Qinghai Lake was 832.5 mm for 2013/2014 and 823.6 mm for 2014/2015, respectively. The surface energy budget and evaporation showed a strong seasonal pattern, with peaks in the latent and sensible heat flux observed in autumn and early winter. There was a 2–3 month delay between the maximum net radiation and maximum latent and sensible heat fluxes. Intraseasonal and seasonal variations in latent and sensible heat flux were strongly affected by different air masses. Westerly cold and dry air masses increased evaporation while southeast moist air mass suppressed evaporation, suggesting that the lakes might serve as an “air conditioner” to modify the temporal heat and water flux in the QTP.

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Evaporation and energy budget in Lake Vegoritis, Greece

Cited by 113 publications

References 39 publications

Features of Air-Lake Interaction in Heat and Water Exchanges over Erhai Lake

Features of Air-Lake Interaction in Heat and Water Exchanges over Erhai Lake

Ecological impacts of global warming and water abstraction on lakes and reservoirs due to changes in water level and related changes in salinity

Evaporation and surface energy budget over the largest high‐altitude saline lake on the Qinghai‐Tibet Plateau

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