the present research measures the household budget of 623 families residing in tehran with the aim of finding out the quality of the family welfare. while at the macro level, social welfare as a new concept is the product of the industrial society, at the micro level, it is accessible through promotion of the household budget. the study employs both qualitative and quantitative research methods...

establishing satisfactory estimation methods of lake evaporation has been crucial vital for research and management of water resources and ecosystems. determining the accurate method to estimate evaporation from reservoirs in the investigation and management of water resources is very important. hence, in this study eight empirical methods such as; makkink, debruin-kejiman, penman, priestley-ta...

A water budget is important for environmental models such as a fire potential model. For the eastern United States, water budget indices derived from the cumulative interplay of precipitation and evaporation characterizes moisture conditions better than the Keech-Byram drought index. Because there are various sources of precipitation and evaporation data, it is difficult to manage those data co...