Firstly an attenuation is the reduction in the peak of a hydro-graph as it moves
downstream, resulting in a more broad, flat hydro-graph.
Therefore the attenuated peak is the highest point before it attenuates.
Absorbed or attenuated.
A hydrograph shows the changing discharge of a stream or river over time. It is created by plotting discharge values against time. Hydrographs provide insight into the flow behavior of a watershed and can be used to analyze flooding events, water resource management, and impacts of land use changes on stream flow.
Depends on what kind of modulation you're using. If frequencies, then it would be in wavelength or hertz; if amplitude, it would be in power or wattage.
Low frequencies are highly attenuated because they have longer wavelengths that interact with obstacles and are scattered, absorbed, or diffracted more easily than higher frequencies. This results in a greater loss of energy as the low-frequency sound wave travels through a medium.
Yes it does change because its mass does not change but its volume does. When it is compressed the density will increase because its volume does. When it is attenuated will decrease because the volume does. Density is mass over volume. Remember: it only works because its mass stays the same and the volume changes.
A storm hydrograph is useful because it shows how a watershed responds to a storm event by plotting discharge over time. This helps in predicting peak flows, assessing flood risk, and designing infrastructure to manage stormwater effectively. It also provides valuable information for watershed management and water resource planning.
The peak rainfall is the highest amount of rain in a place on a hydrograph.
how do you compare and contrast hydrographs
the time between the heaviest rainfall and the peak discharge
To calculate the lag time of a hydrograph, you first identify the peak discharge point on the hydrograph and then locate the corresponding point where the rainfall event begins. The lag time is the time difference between the start of the rainfall and the peak discharge, typically measured in hours. This value helps in understanding the response of a watershed to precipitation events.
Total Volume of rainfall for that storm event
The shape of a storm hydrograph is influenced by factors such as precipitation intensity, duration, and distribution, as well as the characteristics of the watershed such as size, slope, soil type, land use, and vegetation cover. These factors determine how quickly water enters the river system and how quickly it moves through it, ultimately shaping the hydrograph.
It shows us the time between the peak rainfall and peak discharge. Peak rainfall is the highest rain amount. Peak discharge is the highest the water level reaches in the river.
The lag time between peak rainfall and peak discharge on a hydrograph occurs because it takes time for water to travel through the watershed from where it falls as rain to the main channel of a river. Factors like soil type, topography, land use, and drainage patterns influence the flow pathways and the time it takes for water to reach the stream channel.
Use those speacial reading graphs You should have a hydrograph to look at. Look at the curve on this graph, the highest point on this curve is the peak flow. It cannot be calculated, just read off a graph. Peak Flow = Tidal Volume x 60 / I-time
the storm was really bad
The unit of hydrograph for an infinitesimally small duration of effective rainfall is called unit hydrograph. It represents the response of a watershed to a unit input of effective rainfall over time.