DiffServ policies have traditionally been applied to several types of Internet traffic like HTTP, FTP and CBR. DiffServ policies concerning HTTP traffic are commonly focused on preferential treatment of short flows, which are more sensitive to Internet delays and congestion, whereas long flows are penalized by the application of besteffort policies. This differentiation may produce low global p...

It is well documented that human modification of the hydrological cycle has profoundly affected the flow of liquid water across the Earth's land surface. Alteration of water vapor flows through land-use changes has received comparatively less attention, despite compelling evidence that such alteration can influence the functioning of the Earth System. We show that deforestation is as large a dr...

In this paper we present a simple cumulative sum algorithm for detection of leaks in open water channels. The algorithm compares the observed changes in water levels against the known inand out-flows and raises an alarm if they are not in agreement. The algorithm is tested on data from an irrigation channel with very good results. Leaks are quickly detected and the algorithm is robust against u...

1172 P in the vadose zone is nonuniform fl ow that can cause water and solute movement to bypass much of the soil matrix, often resulting in greater water fl uxes and shorter solute transit times than expected (Flury et al., 1994). Understanding preferential fl ow is crucial for quantifying aquifer susceptibility, defi ned as the inherent hydrogeologic properties that control the occurrence of ...

‎in this work we introduce and study discrete time periodically correlated stable‎ ‎processes and multivariate stationary stable processes related to periodic and cyclic‎ ‎flows‎. ‎our study involves producing a spectral representation and a‎ ‎spectral identification for such processes‎. ‎we show that the third‎ ‎component of a periodically correlated stable process has a component related to a...

China's water resources are under increasing pressure from socioeconomic development, diet shifts, and climate change. Agriculture still concentrates most of the national water withdrawal. Moreover, a spatial mismatch in water and arable land availability--with abundant agricultural land and little water resources in the north--increases water scarcity and results in virtual water transfers fro...