Referencing geostrophic velocities using ADCP data Referencing geostrophic velocities using ADCP data

Estimating geostrophic and total velocities from CTD and 1 ADCP data : intercomparison of different methods

Generalized Surface Quasi-geostrophic Equations with Singular Velocities

This paper establishes several existence and uniqueness results for two families of active scalar equations with velocity fields determined by the scalars through very singular integrals. The first family is a generalized surface quasi-geostrophic (SQG) equation with the velocity field u related to the scalar θ by u = ∇⊥Λβ−2θ, where 1 < β ≤ 2 and Λ = (−∆) is the Zygmund operator. The borderline...

Modeling spatial variation in data quality using linear referencing

Spatial data quality (SDQ) is conventionally presented in the form of a report. The data quality statements in the report refer to the entire data set. In reality the quality of data varies spatially due to data collection methods, data capturing techniques, and analysis. Thus, the quality of spatial data for one area may not be applicable to spatial data describing other regions. The present s...

pattern recognition in maintenance data using methodologies data minitng (cade study isfahan regional power electric company)

فعالیت های نگهداری و تعمیرات اطلاعاتی را تولید می کند که می تواند در تعیین زمان های بیکاری و ارایه یک برنامه زمان بندی شده یا تعیین هشدارهای خرابی به پرسنل نگهداری و تعمیرات کمک کند. وقتی که مقدار داده های تولید شده زیاد باشند، فهم بین متغیرها بسیار مشکل می شوند. این پایان نامه به کاربردی از داده کاوی برای کاوش پایگاه های داده چندبعدی در حوزه نگهداری و تعمیرات، برای پیدا کردن خرابی هایی که موجب...

Dissipative quasi - geostrophic equations with initial data

In this paper, we study the solutions of the initial-value problem (IVP) for the quasi-geostrophic equations, namely ∂tθ + u.∇θ + κ (−∆) θ = 0, on R × ]0,+∞[ , θ (x, 0) = θ0(x), x ∈ R. Our goal is to establish the existence and uniqueness of regulars solutions for the two-dimentional dissipative quasi-geostrophic equation with initial data in a Sobolev space H satisfying suitable conditions wit...