Advection definition

Advection means the horizontal movement of an air pollutant by the wind.
Advection means the mass transport of a solute as it flows along with the ground water. Advection is the dominant transport process that drives solute migration in the ground water. The amount of solute that is being transported is a function of its concentration in the ground water and the quantity of ground water flow. The velocity at which a solute is transported through the ground water may not be the same as the velocity of the ground water due to other fate and transport processes. The velocity of water in the saturated zone is governed by three factors, each of which is characteristic of the specific ground water flow system: hydraulic gradient, hydraulic conductivity, and effective porosity. Advection is used to calculate dispersion and down-gradient plume migration. While not destroying or immobilizing contaminants, advection can affect the rate of reactions that contribute to natural attenuation.

Examples of Advection in a sentence

  • Advection Dispersion (AD) Module Provides access to the TUFLOW AD Module, for the simulation of conservative constituents.

  • Graphical Processing Unit (GPU), Advection- Dispersion (AD), Particle Tracking (PT), 3D, Sediment Transport (ST) and Water Quality (WQ) are available as optional modules- refer to the Optional Modules Section for information on these advanced features.

  • S.N., M.W. Farthing, and C.T. Miller (1997) High-resolution ENO Schemes for the Simulation of Advection and Dispersion Problems, EOS Transactions, American Geophysical Union, Vol.

  • Blooms of the toxic dinoflagellate, Alexandrium fundyense in the Casco Bay region of the western Gulf of Maine: Advection from offshore source populations and interactions with the Kennebec River plume.

  • Advection is performed by the PPM (Piecewise Parabolic Method) 3d order scheme for slow species.

  • Advection is the primary process in most systems and therefore is the focus of the Tier 1 analysis.

  • This conservative system is computed from PV field simulated by the Modélisation Isentrope du transport Mésoéchelle de l’Ozone Stratosphérique par Advection (MIMOSA) PV advection model (Hauchecorne et al., 2002).

  • Advection itself was performed using appropriate calls to the existing functions implementing the BCG advection scheme.

  • Equation String [Advection Reaction Equation Variable_name]The name of the equation, e.g., Advection Reaction Equation Tracer.Discontinuous Galerkin Logicalneeds to be set to trueVariable String Variable_nameThe name of the variable, e.g., Tracer.

  • Advection is handled using an unsplit Godunov method with either a piecewise linear or piecewise parabolic reconstruction.

Related to Advection

  • Adverse Event means any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and that does not necessarily have a causal relationship with the treatment. An adverse event can therefore be any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not related to the medicinal product.

  • COVID-19 symptoms means fever of 100.4 degrees Fahrenheit or higher, chills, cough, shortness of breath or difficulty breathing, fatigue, muscle or body aches, headache, new loss of taste or smell, sore throat, congestion or runny nose, nausea or vomiting, or diarrhea, unless a licensed health care professional determines the person’s symptoms were caused by a known condition other than COVID-19.

  • Infection means the entry and development or multiplication of an infectious agent in the body of humans and animals that may constitute a public health risk;

  • Disinfection profile means a summary of daily Giardia lamblia inactivation through the treatment plant. The procedure for developing a disinfection profile is contained in s. NR 810.34.

  • Third Party Material means software, software development tools, methodologies, ideas, methods, processes, concepts and techniques owned by, or licensed to a third party and used by the Service Provider in the performance of the Services;

  • Publicity Material means the promotional gifts, catalogues, pamphlets and all and any advertising and publicity material whatsoever which an Exhibitor wishes to display, distribute or use at the Exhibition.

  • Adverse drug reaction means any undesirable or unexpected medication related event that requires discontinuing a medication or modifying the dose, requires or prolongs hospitalization, results in disability, requires supportive treatment, is life-threatening or results in death, results in congenital anomalies, or occurs following vaccination.

  • Disinfection means a process which inactivates pathogenic organisms in water by chemical oxidants or equivalent agents.

  • Adverse reaction means an unexpected outcome that threatens the health or safety of a patient as a result of a medical service, nursing service, or health-related service provided to the patient.

  • Activity Material means any Material, other than Reporting Material, created or developed by the Grantee as a result of the Activity and includes any Existing Material that is incorporated in or supplied with the Activity Material.

  • Contractor Materials means Materials owned or developed prior to the provision of the Work, or developed by Contractor independently from the provision of the Work and without use of the JBE Materials or Confidential Information.

  • Production, Use or Storage of Nuclear Material means the production, manufacture, enrichment, conditioning, processing, reprocessing, use, storage, handling and disposal of Nuclear Material.

  • Processes with Significant Environmental Aspects means the Equipment which, during regular operation or if not properly operated or maintained, may cause or are likely to cause an adverse effect.

  • Pathogen means an organism that is capable of producing an infection or disease in a susceptible host.

  • Nonconformance as used in this clause means a condition of any hardware, software, material, or service/workmanship in which one or more characteristics do not conform to requirements.

  • Biological agent shall mean any pathogenic (disease producing) micro-organism(s) and/or biologically produced toxin(s) (including genetically modified organisms and chemically synthesized toxins) which cause illness and/or death in humans, animals or plants.

  • Antipsychotic medications means that class of drugs

  • Third Party Materials means materials and information, in any form or medium, including any software, documents, data, content, specifications, products, equipment or components of or relating to the Services that are not proprietary to NCIT.

  • Adverse Environmental Condition shall refer to (i) the existence or the continuation of the existence, of an Environmental Emission (including, without limitation, a sudden or non-sudden accidental or non-accidental Environmental Emission), of, or exposure to, any substance, chemical, material, pollutant, Contaminant, odor or audible noise or other release or emission in, into or onto the environment (including, without limitation, the air, ground, water or any surface) at, in, by, from or related to any Equipment, (ii) the environmental aspect of the transportation, storage, treatment or disposal of materials in connection with the operation of any Equipment or (iii) the violation, or alleged violation of any statutes, ordinances, orders, rules regulations, permits or licenses of, by or from any governmental authority, agency or court relating to environmental matters connected with any Equipment.

  • Investigational Product means the Study Drug identified above and the control material, as further detailed in the Protocol;

  • Membrane filtration means a pressure or vacuum driven separation process in which particulate matter larger than one micrometer is rejected by an engineered barrier, primarily through a size exclusion mechanism, and which has a measurable removal efficiency of a target organism that can be verified through the application of a direct integrity test. This definition includes the common membrane technologies of microfiltration, ultrafiltration, nanofiltration, and reverse osmosis.

  • Collaborative drug therapy management means participation by an authorized pharmacist and a physician in the management of drug therapy pursuant to a written community practice protocol or a written hospital practice protocol.

  • Initial Environmental Examination or “IEE” means an initial environmental examination for a Subproject, including any update thereto, prepared and submitted by the Borrower pursuant to the requirements set forth in the EARF and cleared by ADB;

  • Diagnosis means the definition of the nature of the Client's disorder. When formulating the Diagnosis of Client, CONTRACTOR shall use the diagnostic codes and axes as specified in the most current edition of the DSM published by the American Psychiatric Association. DSM diagnoses will be recorded on all IRIS documents, as appropriate.

  • Fluoroscopic imaging assembly means a subsystem in which X-ray photons produce a visual image. It includes the image receptor(s) such as the image intensifier and spot-film device, electrical interlocks, if any, and structural material providing linkage between the image receptor and diagnostic source assembly.

  • Prosthesis means an artificial substitute for a missing body part.