hydrograph analysis is a complex problem in a variety of water resources investigations and its estimate is critical in the assessment of low flow characteristics of river for use in water supply, water management and pollution assessment. the paper describes different methods of base flow separation based recession analysis from daily river flow records and distinguishes the most suitable meth...

We improve the usefulness of small (diameter < 10 mm) critical flow venturis (CFVs) as transfer standards for gas by measuring and explaining how their discharge coefficients depend on temperature T environment. At Reynolds numbers Re 2.5 × 105 (e.g., a 2 mm diameter throat; inlet air at 1 MPa), CFVs exhibit sensitivity to environmental approximately 0.02 % K−1 due biased measurements stagnatio...