Episodic high flow

Seismic Sources from Landslides and Glaciers, Fig. 33 Geodetic and seismic monitoring of an episodic high flow velocity phase at the Whillan Ice Stream (WIS) (a) location map (b) zoom of the monitoring area with... 

By trapping the sediment from used alpine waters, reservoirs reduce the transport of suspended load to residual flow reaches. In these sections with a reduced channel flow, the tractive force and shear stress is drastically reduced. This additionally reduces the bed load transport, which may then result in solid matter originating from unaffected tributary streams remaiiung in the main channel, thus significantly increasing the debris-flow hazard for episodic high water discharge [36]. 

Figure 14. Stream-water chemistry for control watershed No. 4 at the Fernow Experimental Forest in West Virginia, a, Seasonal pattern in N03 indicates both elevated baseflow concentrations and episodic increases during high-flow events in the spring and thus suggests that this watershed has reached Stage 2 of watershed N loss, b, The long-term trend suggests that substantial changes in N03 export have occurred over the past 2 decades. (Data are from...

Recently, recurrent or stuttering priapism has been described as a poorly understood condition that may present clinically with low-flow or, more frequently, with high-flow episodes, alternatively (Pautler and Brock 2001 Pryor et al. 2004). 

M3 in Fig. 11a). Flow here represents quasistationary creep including episodic high activity, depending on infiltration and the pore pressure (Fig. 11b). The distribution of velocities in space and time within the landslide mass justifies its macroscopic description as a ductile medium. However, as the following two examples will prove, brittle deformations or interactions between pore fluid and the rock/soil mass also exist and resemble seismic sources. 

Automatic water samplers at each of these sites were triggered when the water level reached a pre-set height. Composite samples, made up of four half-hourly sub-samples, were taken at two hour intervals for 48 hours. These samples, which were taken to monitor changes in water chemistry during episodes of high flow, were analysed for pH, alkalinity, calcium, magnesium, aluminium (soluble and total after acidification of the sample), conductivity, chloride and humic substances. 

Compute the availability of the level indicator system and flow shutdown system for Problem 11-2. Assume a 1-month maintenance schedule. Compute the MTBC for a high-level episode and a failure in the shutdown system, assuming that a high-level episode occurs once every 6 months. 

Fig. 5. High resolution spectra of U Cephei In the Mg II resonance doublet region at 2975 and 2802 A, at phase 0.58, during its active mass flow episode in 1986 (McCluskey et al. 1987). The maximum-velocity toward the observer is about 800 km/s. The flat bottom of the broad absorption feature indicates saturation but the absorption does not quite reach zero-flux level, suggesting only a partial covering of the surface of the B star by the plasma flowing out of the G giant.

A 64-year-old man with giant cell arteritis was given prednisolone 60 mg/day. Within 5 days he developed double vision and agitation and became drowsy and confused. A cranial MRI scan showed recent cerebral lesions and a Doppler scan showed high-resistant blood flow in both vertebral arteries. He had an episode of complete loss of vision and was given dexamethasone... 

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