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What else can I help you with?
Light that is trapped by matter is said to be?
Absorbed or attenuated.
How does a hydrograph work?
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.
A signal is attenuated in direct proportion to what factor?
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.
Why low frequencies are highly attenuated?
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.
Does a fluid's density change when it is compressed and attenuated?
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.
Why is a storm hydrograph useful?
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.
What is Rainfall Peak?
The peak rainfall is the highest amount of rain in a place on a hydrograph.
Why does lag time occur in a storm Hydrograph?
Lag time in a storm hydrograph occurs due to the time it takes for precipitation to travel through the watershed to reach the measuring point, such as a river or stream. Factors influencing lag time include the size and shape of the watershed, land use, soil saturation, and infiltration rates. Additionally, delays in surface runoff and subsurface flow contribute to the time difference between peak rainfall and peak discharge. Overall, these factors create a delay that is reflected in the hydrograph's shape and timing.
How do you contrast a storm hydrograph?
how do you compare and contrast hydrographs
How do you work out lag time on a hydrograph?
the time between the heaviest rainfall and the peak discharge
How do you calculate the lagtime of a hydrograph?
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.
On a hydrograph what does the area under the curve equal?
Total Volume of rainfall for that storm event
What affects the shape of a storm hydrograph?
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.
How does the relief of the land effect a storm hydrograph?
The relief of the land significantly influences a storm hydrograph by affecting how quickly water flows into rivers and streams. Steep terrain can lead to rapid runoff, resulting in a sharp rise in discharge on the hydrograph, while flatter areas may allow for slower, more prolonged runoff. Additionally, the presence of features like valleys and hills can create variations in drainage patterns, further impacting the timing and shape of the hydrograph. Overall, the topography plays a crucial role in determining the response of a drainage basin to storm events.
What does the lag time showon a 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.
Why is there a lag time between the peak rainfall and peak discharge on a hydrograph?
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.
What is hydrograph lag time?
Hydrograph lag time refers to the delay between the peak rainfall event and the peak discharge observed in a river or stream, as depicted on a hydrograph. This lag time is influenced by various factors, including the characteristics of the watershed, land use, soil saturation, and the nature of the rainfall itself. It is an important parameter for understanding flood dynamics and managing water resources, as it helps predict how quickly runoff will reach waterways after precipitation events.
