نتایج جستجو برای: ground level ozone

تعداد نتایج: 1221724  

2006
S. I. V. Sousa F. G. Martins M. C. Pereira M. C. M. Alvim-Ferraz

Prediction of ground-level ozone concentrations is very important due to the negative impacts of this pollutant on human health and environment. Multiple linear regression (MLR) and principal component (PCR) regression were used as statistical models for the forecasting of ozone concentrations. The aim of this study was to predict the next day maximum ozone concentration. The studies were perfo...

Journal: :Remote Sensing 2010
Zhiqiang Gao Wei Gao Ni-Bin Chang

Thinning of the atmospheric ozone layer leads to elevated levels of Ultraviolet-B (UVB) at the Earth's surface, resulting in an increase of health risks to living organisms due to DNA damage. This paper examines the multidecadal changes of total column ozone from 1979 to 2005 with the aid of ground-based UVB stations using the ultraviolet multifilter rotating shadow-band radiometer (UV-MFRSR). ...

Journal: :Remote Sensing 2022

Ozone is one of the most important gases in atmosphere as it plays different roles based on levels presents. The ozone layer stratosphere protects life Earth by absorbing ultraviolet (UV) radiance while harming at ground-level. In order to better understand source pollution, transport ozone, stratosphere-troposphere exchange necessary estimate vertical profile ozone. this study, we derive throu...

Journal: :Intelligent Automation & Soft Computing 2011
Cemal Okan Sakar Goksel Demir Olcay Kursun Huseyin Ozdemir Gökmen Altay Senay Yalçin

High concentrations of ozone (O3) in the lower troposphere increase global warming, and thus affect climatic conditions and human health. Especially in metropolitan cities like Istanbul, ozone level approximates to security levels that may threaten human health. Therefore, there are many research efforts on building accurate ozone prediction models to develop public warning strategies. The goal...

Journal: :Applied optics 2005
Robert Spurr Diego Loyola Werner Thomas Wolfgang Balzer Eberhard Mikusch Bernd Aberle Sander Slijkhuis Thomas Ruppert Michel van Roozendael Jean-Christopher Lambert Trisnanto Soebijanta

The global ozone monitoring experiment (GOME) was launched in April 1995, and the GOME data processor (GDP) retrieval algorithm has processed operational total ozone amounts since July 1995. GDP level 1-to-2 is based on the two-step differential optical absorption spectroscopy (DOAS) approach, involving slant column fitting followed by air mass factor (AMF) conversions to vertical column amount...

Journal: :Environmental science & technology 2017
Yixin Guo Junfeng Liu Denise L Mauzerall Xiaoyuan Li Larry W Horowitz Wei Tao Shu Tao

Ground-level ozone (O3), harmful to most living things, is produced from both domestic and foreign emissions of anthropogenic precursors. Previous estimates of the linkage from distant sources rely on the sensitivity approach (i.e., modeling the change of ozone concentrations that result from modifying precursor emissions) as well as the tagging approach (i.e., tracking ozone produced from spec...

2006
K. Vanicek

Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract This paper presents key results achieved on analysis of relation between high-quality simultaneous Dobson, Brewer ground and TOMS-V8, GOME-WFDOAS satellite total ozone observations for Hradec Kralove, Czech Republic. St...

Journal: :Sustainability 2022

Ground-level ozone has become the primary air pollutant in many urban areas of China. Oil vapor pollution from gasoline stations accelerates generation ground-level ozone, especially densely populated with high demands for transportation. An accurate spatiotemporal distribution concentrations (GOCs) around is urgently needed. However, GOCs vary sharply over short distances, increasing need at a...

2013
Sandipan Das T. P. Singh

Vegetation plays a key role in reducing ambient temperature, moisture and pollutant capture, energy use and subsequent ground level ozone reduction. In recent years vegetation mapping has become increasingly important, especially with advancements in environmental economic valuation. The spatial information from the remote sensing satellites enables researchers to quantify and qualify the amoun...

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