نتایج جستجو برای: hysplit
تعداد نتایج: 302 فیلتر نتایج به سال:
1. Evaluation of the meteorology: The largest concern I have with this manuscript is the lack of meteorological evaluation. The authors use two different particle dispersion models (FLEXPART & HySplit) but both are driven by the same meteorology (GFS at 0.5 ◦ × 0.5 ◦ resolution). Obviously, if the meteorology is incorrect then the authors will obtain erroneous results. Surely there are observat...
Emissions from agricultural activities, both crop and animal, are known to contain gaseous ammonia (NH3) which through chemical reaction in rainwater changes into ammonium ion (NH4 ). Using wet deposition data of ammonium from several National Atmospheric Deposition Program/National Trends Network (NADP/NTN) and ambient levels of ammonium from Clean Air Status Trends Network (CAST Net) sites as...
Spatial resolution is the main instrumental requirement for the multi-spectral optical space missions that address the scientific issues of marine coastal systems. This spatial resolution should be at least decametric. Aquatic color data processing associated with these environments requires specific atmospheric corrections (AC) suitable for the spectral characteristics of high spatial resoluti...
Aim: The objective of this work was to determine the behavior trajectories air plots in two sites (San Mateo Atenco-(SM) and San Lorenzo Tepaltitlán-(SL)), atmosphere Metropolitan Zone Toluca Valley (MZTV).
 Methodology: In MZTV, using HYSPLIT a Backward trajectory direction analysis performed from June 29 July 8, 2021, considering for each day summertime schedules center, indicating its C...
Atmospheric synoptic weather patterns have a significant impact on the concentration, dispersion, and transportation of air pollution in various regions times around world. To assess atmospheric long-range mass transportation, we used classification techniques from BP training model HYSPLIT model. Our research uncovered four conditions linked to PM10 concentration categories ranging normal extr...
در این پژوهش به منظور ردیابی گرد و غبار در سنندج، ابتدا رخدادهای توفان گرد و غبار در دوره آماری 24 ساله (2013-1990 میلادی) از دادههای هواشناسی استخراج و به صورت آماری بررسی شد. در ادامه، یک رخداد گرد و غبار که در نیمة گرم سال اتفاق افتاده و به مدت 10 روز طول کشیده بود انتخاب و با استفاده از مدل HYSPLIT ذرات غبار در اتمسفر ردیابی شد. سپس به منظور واکاوی رخداد توفانهای گرد...
Currently dust storms are among the most prevalent global environmental issues.They early warning indicators for desertification and climate change. The study intends toanalyse event in Pakistan using normalized detection index (NDDI), brightness temperature(BT) MODIS data of aerosol optical depth (AOD), deep blue angstrom exponent (AE), aerosolindex (AI) HYSPLIT mass trajectory methods. It als...
Using the hourly monitoring data of pollutants from 16 automatic atmospheric stations in eastern Jilin Province 2015 to 2020, this paper analyzed temporal and spatial distribution laws CO, SO2, NO2, PM10, PM2.5, O3 Province. At same time, regional transport pathways were using hybrid single-particle Lagrangian integrated trajectory (HYSPLIT) model; potential source contribution function (PSCF) ...
1-Interoduction: Air pollution has been considered as one of the global challenges. According to world health organization (WHO), dust particles are the 5th most dangerous cause of death 4.2 million in the world. According to the world meteorological organization (WMO), when the wind speed increases more than 15 m/s and the visibility decreases because of dust particles less than 1 km, it is c...
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