For the prediction of the air pollution level, methods used in system identification can be used. In this case, the system will usually have a number of input parameters (mainly meteorological), and one output parameter, the pollutant concentration. For the pollutant generation and dispersion process, a model is to be developed that satisfies the experimental data (process parameters). This mod...

The ability to obtain meteorological measurements in the planetary boundary layer for quantification of clear-air turbulence is investigated using the Small Multifunction Research and Teaching Sonde (SMARTSonde). With an instrumented unmanned aircraft, a series of flights were conducted in the spring of 2013 to obtain meteorological variables at Kessler Atmospheric and Ecological Field Station ...

This paper demonstrates a low-cost, yet reliable, weather monitoring system. The proposed system has three sensors that measure the temperature, wind speed and wind direction, respectively. The analogue outputs of the sensors converted to digital signals and further processed by a microcontroller. Using easily-available components and simple circuitry, the system should be beneficial in providi...

Leaf area index, defined as one half the total (all sided) leaf area per unit ground surface area [1], is a key vegetation structural parameter used in most ecological, hydrological and meteorological models to describe physical and biological processes associated with vegetated surfaces and their interaction with the atmosphere. The accuracy of existing global LAI parameters is not yet satisfa...

In order to customize the display of meteorological data for different users, we use clustering to group similar users. We compute a rate of similarity between the current user and all others in the same cluster. We use this rate for weighting users’ preferences and then compute an average to be compared with a threshold to decide to display this parameter or not. The optimization of this thres...

GPS observables taken from light-weight GPS buoys more than 80 km from the GPS reference stations have been analysed using different noise models in the parameter estimation process. The time series solution of the GPS buoy positioning have been used to extract values of oceanic variables (sea level, tides and waves) and tropospheric information. These variables are compared with data from mode...

Optimal control theory of partial di erential equations has emerged as a new way to attack problem of D atmospheric oceanic data assimilation problems These variational techniques attempt to achieve a best t between data observations and forecast model subject to some a priori criteria This review paper presents new trends for utilizing model adjoint equations for variational data assimilation ...

Hydro-agrological research considers the reference evapotranspiration (ETo), driven by meteorological variables, crucial for achieving precise irrigation in precision agriculture. ETo modelling based on a single parameter would be beneficial places where collection of climatic parameters is challenging. The aim this to develop deep neural network (DNN) architecture that predicts daily with inpu...