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The effects of humidity on density altitude are quantified in detail and graphically represented as a function of temperature and dew-point temperature for ease of use in professional aviation education. A ten-year clima...

General aviation rules of thumb (ROTs) for density altitude and true altitude are examined and developed. Both ROTs originate from the same basic principle of hydrostatic balance, but differ significantly in the assumpti...

The Federal Aviation Administration (FAA) has put forth a set of regulations (Part 107) that govern small unmanned aerial system (sUAS) operations. These regulations restrict unmanned aircraft (UA) from flying over peopl...

ABSTRACT The analysis of spatiotemporal data is essential across many fields, such as transportation, meteorology and healthcare. Data gathered in practical applications often suffer from incompleteness due to device fai...

Air temperature is a highly essential parameter in weather forecasting methods and a critical variable for predicting future weather patterns. An accurate temperature prediction system can assist individuals and organiza...

Abstract Roadside areas are major sources of traffic-related air pollutant emissions. This study identified the spatial distribution of roadside pollutants using Unmanned Aerial Vehicle (UAV) measurements and predicted t...

Climate change and variability have significantly impacted smallholder and subsistence farmers in Ethiopia. The effectiveness of adaptation measures largely depends on how farmers perceive climate change and variability....

Canonical correlation methods for data representing functions or curves have received much attention in recent years. Such data, known in the literature as functional data (Ramsay and Silverman, 2005), has been the subje...

Abstract Background Suicide is a serious and growing public health issue with a complex, multifactorial etiology involving psychological, social, and environmental determinants. Increasing evidence suggests that meteorol...

Land surface and crop models both simulate irrigation, but they differ in their approaches, primarily because they were originally developed for distinct purposes and scales. Through an example case study in a highly irr...

In 2023, Canada experienced its most severe wildfire season on record, burning over 7.8 million hectares and releasing unprecedented carbon emissions surpassing the country’s previous record by several fold. These fire...

Precipitation generators are statistical models used to produce synthetic sequences of (multisite) precipitation for hydrological applications such as flood risk assessment and water resource management. Among these, app...

The Beijing–Tianjin–Hebei region of China features a unique topographic structure. Influenced by synoptic-scale systems, the region’s atmospheric strata over the plains are distinct. This study utilizes ground aero...

1 The Atmosphere. 2 Atmospheric Trace Constituents. 3 Chemical Kinetics. 4 Atmospheric Radiation and Photochemistry. 5 Chemistry of the Stratosphere. 6 Chemistry of the Troposphere. 7 Chemistry of the Atmospheric Aqueous...

Köppen's climate classification remains the most widely used system by geographical and climatological societies across the world, with well recognized simple rules and climate symbol letters. In Brazil, climatology has...

Fil: Celis, Alejandra. Centro de Estudios Sociales y Ambientales; Argentina. Fil: Forni, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ciencias Sociales; Argentina. ...

Fil: Dettelbach, Michael. Universidad de Boston; Estados Unidos. El presente trabajo indaga en el universalismo de Humboldt en tanto científico omniabarcador y cosmopolita, para señalar que su manera de trascender las ...

Materias / palabras clave: Computer science; Meteorology; Environmental science; Geography

Abstract The authors propose a new climatic drought index: the standardized precipitation evapotranspiration index (SPEI). The SPEI is based on precipitation and temperature data, and it has the advantage of combining mu...

Materias / palabras clave: AERONET; Remote sensing; Aerosol; Environmental science; Radiometer; Geostationary orbit; Satellite; Data processing; Meteorology; Interface (matter); Computer science; Database

Plastic debris in the marine environment is widely documented, but the quantity of plastic entering the ocean from waste generated on land is unknown. By linking worldwide data on solid waste, population density, and eco...

Materias / palabras clave: Parabolic trough; Environmental science; Trough (economics); Solar energy; Flux (metallurgy); Tracking (education); Heat flux; Thermal; Meteorology; Mass flux; Heat transfer; Materials science

Abstract Within the Copernicus Climate Change Service (C3S), ECMWF is producing the ERA5 reanalysis which, once completed, will embody a detailed record of the global atmosphere, land surface and ocean waves from 1950 on...

Abstract ERA‐Interim is the latest global atmospheric reanalysis produced by the European Centre for Medium‐Range Weather Forecasts (ECMWF). The ERA‐Interim project was conducted in part to prepare for a new atmosp...