Estimated annual regime of energy-balance components, evapotranspiration and soil moisture for a drainage basin in the case of a CO2 doubling

Abstract

Assuming a doubling of the atmospheric CO2 concentration, parameters of an empirical formula for calculating the daily net terrestrial radiation under the climatic conditions of Belgium are determined. The developed method takes into account information yielded by climate models about the CO 2 impacts. Annual regimes of the energy-balance components are calculated for a drainage basin in Belgium. A daily step conceptual hydrological model (developed at the Royal Meteorological Institute of Belgium) was run to estimate the effective evapotranspiration and the soil moisture in the 2 x CO2 case; results of this simulation are compared with the present-day conditions.

Regional hydrologic and carbon balance responses of forests resulting from potential climate change

“…Although it is tempting to define seasonality differences as was done by Bultot et al (1988), recent analyses of regional accuracy of GCM calculations suggest that this level of detail is not currently warranted (Grotch, 1988).…”

“…Revelle and Waggoner (1983) first projected 40-70% reductions in streamflow in the western United States based only on climate change scenarios and static vegetation response (an assumption still being made in some research e.g. Bultot et al 1988). Idso and Brazel (1984), Aston (1984), and Wigley and Jones (1985) all added the known improvements in water use efficiency resulting from partial stomatal closure and predicted increases in streamfiow of 40-90% depending on hydrologic regime.…”

Future environments for Europe: Some implications of alternative development paths

“…• A major increase in evapotranspiration during the summer half of the year (see, for example, Bultot et al, 1988) . • A substantial decrease in soil moisture, particularly in the summer, in Central and Southern Europe (Manabe and Wetherald , 1987 (Kaczmarek and Kindler, 1988) .]…”

Do changes in meteorological parameters and evapotranspiration affect declining oak forests of Iran?

“…According to the fourth assessment report of IPCC (2007), global temperature has increased by 0.3 to 0.6°C since the late 19 th century and by 0.2 to 0.3°C over the past forty years. Previous research suggests that climate change may have a significant impact on hydrological parameters; namely runoff, evapotranspiration (ET), soil moisture, rainfall interception, and groundwater (Němec, Schaake 1982;Bultot et al 1988;Anderson et al 2008). Some of the researchers have also investigated the trends in different types of hydrological, ecohydrological, and hydrometeorological parameters such as soil moisture, drought characteristics, groundwater, pan evaporation and reference evapotranspiration -ET 0 (Němec, Schaake 1982;Bultot et al 1988;Tabari et al 2011).…”

“…Previous research suggests that climate change may have a significant impact on hydrological parameters; namely runoff, evapotranspiration (ET), soil moisture, rainfall interception, and groundwater (Němec, Schaake 1982;Bultot et al 1988;Anderson et al 2008). Some of the researchers have also investigated the trends in different types of hydrological, ecohydrological, and hydrometeorological parameters such as soil moisture, drought characteristics, groundwater, pan evaporation and reference evapotranspiration -ET 0 (Němec, Schaake 1982;Bultot et al 1988;Tabari et al 2011). ET 0 , a major component of the hydrological cycle, is one of the most important elements for quantifying available water since it generally constitutes the largest components of the terrestrial water cycle (Tabari 2010).…”