What is natural plume?
A plume is a column of liquid, gas, or dust, moving through another. In general we use the term plume to describe things like smoke coming out of a chimney or steam from a smokestack at a power plant. A plume could also be rain cloud, a snow cloud, and even your breath!
What is plume analysis?
In this Geographic Plume Analysis (GPA) approach, a chemical dispersion model provides a toxic dispersal “footprint”, given information about local weather conditions and the type of chemical released. This footprint is superimposed on a demographic database to determine the composition of the affected population.
What is plume area?
The Capital City Plume (also sometimes spelled Capitol City Plume) is an area in downtown Montgomery previously designated by regulatory agencies where the groundwater (not a source of drinking water) in a 30 to 50 block area has previously showed the presence of several common urban contaminants.
What is a plume model?
Glossary Term. Plume model. A computer model used to calculate air pollutant concentrations at receptor locations. The model assumes that a pollutant plume is carried downwind from its emission source by a mean wind and dispersed horizontally and vertically by atmospheric stability characteristics.
What is plume behavior?
Plume behaviour refers to the dispersal pattern of gaseous pollutants in atmosphere depending upon wind conditions, atmospheric stability and vertical temperature profile. It shows seasonal as well as diurnal variations.
Why do we use the Gaussian plume model?
Gaussian plume models are used heavily in air quality modelling and environmental consultancy. The model can be used to illustrate the following phenomena: Effect of wind fluctuations / speed on pollutant concentrations. Effect of vertical stability on mixing and concentrations at the ground.
What are the assumptions of Gaussian plume model?
Gaussian models, while the most commonly used, are not without limitations. The model assumes that wind speed and direction is constant, emission rates are constant, the terrain is flat, deposition is negligible, and the shape of the plume is conical (Reed, 2005).
What is gaussian model used for?
Gaussian Mixture models are used for representing Normally Distributed subpopulations within an overall population.
What is the Gaussian plume model?
The Gaussian plume model is the most common air pollution model. It is based on a simple formula that describes the three-dimensional concentration field generated by a point source under stationary meteorological and emission conditions.
What is plume rise?
An algorithm for calculating the altitude that a plume will rise due to momentum and buoyancy forces before reaching an equilibrium height. Plume rise increases with higher buoyancy or momentum of the plume and decreases with increasing wind speed or vertical temperature gradient in the atmosphere.
What is stack plume?
Plume: • The dispersion of emitted gases from the source of their production is known as plume and the source is known as stack. 2. • NOTE: ELR (Environmental Lapse Rate) • The environmental lapse rate (ELR), is the rate of decrease of temperature with altitude in the stationary atmosphere at a given time and location.
What is plume pollution?
Pollutants released to the ground can work their way down into the groundwater, leading to groundwater pollution. The resulting body of polluted water within an aquifer is called a plume, with its migrating edges called plume fronts. A thermal plume is one which is generated by gas rising above heat source.
What does the word plume?
1 : a large or showy feather of a bird. 2 : an ornamental feather or tuft of feathers (as on a hat) 3 : something shaped like a large feather a plume of smoke.
How can a pollution plume be stopped?
Close your windows if you are in heavy traffic. Set up closed-circuit air conditioning in order to recycle and filter the air in your vehicle. If you don’t have AC, it’s also possible to temporarily stop your car’s ventilation system in high pollution areas.
What is plume WIFI?
The Plume Adaptive Wi-Fi system is a rather original idea to blanket your home with Wi-Fi. With multiple pods, they leverage one another’s signal to deliver a reliable Wi-Fi network, fast enough to stream 4K content at every corner of your home.
Is a plume SuperPod a router?
Each SuperPod is an AC3000 tri-band router equipped with one 2.4GHz band, two 5GHz bands, a quad-core processor, and a Bluetooth radio. Each SuperPod contains two gigabit LAN ports, a tiny status LED, and a two-prong plug for connecting it to a wall outlet.
Is plume WiFi safe?
Encrypted Transmission to Cloud Data sent from the pod to the cloud is encrypted via TLS. Each pod has a unique TLS connection with the cloud to prevent access in route.
How does WiFi Plume work?
You connect one of the Plume Pods to an internet source, like a broadband modem, and it works as your main router. Plug in the rest of the pods around the house and you have just created an extended or “mesh” Wi-Fi network. First, if there’s no internet, you can’t manage your home network at all.
How do you use plume?
How do I add Plume? Follow these instructions to set up your Plume with your modem that is connected to a separate router. Download the HomePass app and sign up to start the setup. Restart your modem Connect one of your Plume pods (preferably a SuperPod) to a LAN port on your router via Ethernet cable to keep using…