Showing results for: meteorology data acquisition Articles
-
Source determination in congested environment through Bayesian inference
Source term determination in real time, i.e., location, rate of release and its use for the simulation of dispersion of toxic substances would be extremely valuable information as support for emergency actions on industrial sites and their vicinity. For that purpose, CFD is used to model the dispersion while the Bayesian inference algorithm enables the estimation of the source term in real time. ...
-
Modelling ozone levels in an arid region – a dynamically evolving soft computing approach
The primary pollutants may contribute to the increase of ozone levels in the arid regions. Complex interactions between the pollutants and the meteorological variables make the study of this phenomenon more exigent. The dynamically evolving neural fuzzy inference system (DENFIS), as an example of soft computing models, allows the online evolution of both the knowledge and the inference ...
-
`Sensitivity of AERSURFACE Results to Study Area and Location,` presented at the Air & Waste Management Association`s annual conference
Abstract The United States Environmental Protection Agency (U.S. EPA) released a new version of theAERSURFACE tool on January 9, 2008. AERSURFACE is used to develop direction-specificestimates of surface characteristics (albedo, Bowen ratio, and surface roughness) for use as oneinput in AERMET to produce meteorological data sets that can be used in regulatory dispersionmodeling analyses using ...
-
Spatiotemporal variability of streamflow and attribution in the Three-Rivers Headwater Region, northwest China
Monthly hydrological and daily meteorological data were collected across the Three-Rivers Headwater Region (TRHR) over a period from 1956 to 2012. Modified Mann–Kendall tests, flow duration curves, and correlation statistics were performed to identify long-term trend and interrelationships between these hydro-meteorological variables and to analyse the factors influencing runoff. The results ...
-
National Energy Technology Laboratory - USA
The National Energy Technology Laboratory site in Morgantown, West Virginia, USA, maintains a 150-foot free standing meteorological tower with data collection points at ground level, 33 feet, 75 feet, and at 150 feet. The data collected at ground level is Air Temperature, relative humidity, total rainfall, and snow depth. The other stations monitor wind direction and speed. Additionally, air ...
-
AERMOD Versus CTDMPLUS: A Complex Terrain Case Study
ABSTRACT The American Meteorological Society/U.S. Environmental Protection Agency (AMS/EPA) Regulatory Model Improvement Committee (AERMIC) has updated the Industrial Source Complex (ISC) air dispersion model. The AERMIC model (AERMOD) is capable of predicting ambient pollutant concentrations in simple terrain and elevated terrain. The complex terrain capabilities of AERMOD are of particular ...
-
Impacts of climate change on headstream runoff in the Tarim River Basin
The impacts of climate change on annual runoff were analyzed using hydrologic and meteorological data collected by 8 meteorological stations and 15 hydrological stations in the headstream of the Tarim River Watershed from 1957 to 2005. The long-term trend of climate change and hydrological variations were determined by parametric and non-parametric tests. The results show that the increasing ...
-
Precipitation monitoring in the Sierra Nevada - Spain - Case study
This OTT Pluvio² precipitation measuring station “Tajos de Breca” is situated 2470 meters (8103.67 feet) above sea level at the southern slope of the Sierra Nevada for long term meteorological data collection. The station forms part of a measuring network named “Project Guadalfeo” which is financed by the Andalusian government and the responsible water authority. ...
By OTT HydroMet
-
Influence of meteorological factors on air pollution concentration for a coastal region in India
A long-term study of measurement of concentration of NOx, SO2 and TSP pollutants have been done in a port and harbour region in India. Monthly measurements of gaseous and particulate pollutants were made at six monitoring stations from January 1997 to December 2000. Meteorological data was also simultaneously collected. In this study, the relationship between monitored ambient air quality data ...
-
Potential Dispersion Modeling Uses of Archived NOAA Forecast Model Data
A newly-developed generation of air quality simulation models has the potential to use profiles of wind, temperature, and turbulence, as well as improved mixing height determination, measures of surface heat flux, and a host of other meteorological parameters. Several numerical weather prediction models that generate these comprehensive data sets are routinely being run by the National Oceanic ...
-
Onsite Meteorological Data - Everything You Need To Know
Most AERMOD dispersion modeling is conducted using meteorological data from a nearby airport. As long as the airport is reasonably representative of your source location, there is nothing wrong with that: airports are often a source of high quality data and located near major population centers and thus, major air pollution sources. But airport data isn’t always the best option for ...
-
Five-Day Non-Stop Met Ocean Data Collection - Case study
A Data Xplorer USV was sent on a115-hour mission to collect meteorological and oceanic data. Additionally, the vessel conducted several grid bathymetric surveys during the course of the mission. Data Xplorer conducted a five-day continuous voyage throughout the Southern Gulf Islands. The USV was tasked with the dual mission of continuously collecting meteorological data and conducting several ...
-
Investigating the importance of pre-processing in estimating dispersion climatology
This study investigates the sensitivity of dispersion modelling results to the way that climatologies are described. The study investigates the sensitivity of the dispersion predictions to the number of years of data used; using hour by hour or statistical data; using different variables (e.g. surface heat flux or the Monin-Obukhov length); using different category boundaries for statistically ...
-
Multiple Pathway Health Risk Assessment of a Municipal Waste Resource Recovery Facility in Maryland
Untitled Document Following a 1986 decision by Montgomery County in Maryland to construct a municipal waste resource recovery facility near the town of Dickerson, local residents expressed concern regarding the potential health risks associated with the proposed facility. In response, the county conducted a multiple pathway health risk assessment for a generic ...
-
Weather Station Data Logger Collects Meteorological Data
Complete Weather monitoring using an Intelligent Universal Data Logger A construction company needed to collect meteorological data to study the effects of building materials such as roofing tile for a meteorological data logging application. CAS DataLoggers provided the dataTaker DT-85 for a weather station data logger environmental monitoring solution. Long-term monitoring of a variety of ...
-
49 stations along the Mekong River - Cambodia - Vietnam - Laos - Thailand - Case study
The Mekong River Commission Secretariat (MRCS) is a Basin Management Organization formed through the joint-cooperation of Cambodia, Lao PDR, Thailand and Vietnam. China and Myanmar are also partners with the MRCS. The organization aims at sustainable development on managing water resources & sharing info among the Mekong member countries. In cooperation with the World Meteorological ...
By OTT HydroMet
-
Cerex introduces the new AirSentry FTIR Open Path Analyzer
Cerex Monitoring Solutions is pleased to announce the release of the third generation model AirSentry FTIR multi-gas open path FTIR analyzer. The decision was made to fully redesign the analyzer to take full advantage of advances in hardware and software technology. The third generation design represents a full reconfiguration of the instrument. Goals were to reduce initial and operating costs ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you