NO2 observations from the Sentinel-5P TROPOMI - Turkey Gordana - - PowerPoint PPT Presentation

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NO2 observations from the Sentinel-5P TROPOMI - Turkey Gordana - - PowerPoint PPT Presentation

Jan 25, 2023 9 likes •110 views

NO2 observations from the Sentinel-5P TROPOMI - Turkey Gordana KAPLAN, Zehra YIGIT AVDAN and Ugur AVDAN Eskisehir Technical University, Eskisehir - Turkey Contents Introduction o Aim of the Study o Data & Methods o Results o

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NO2 observations from the Sentinel-5P TROPOMI - Turkey

Gordana KAPLAN, Zehra YIGIT AVDAN and Ugur AVDAN Eskisehir Technical University, Eskisehir - Turkey

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Contents

  • Introduction
  • Aim of the Study
  • Data & Methods
  • Results
  • Discussion
  • Conclusion

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Introduction

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Main causes of air pollution include:

  • In

Increase of Urban Populatio ion

  • Economic Development
  • Urbanization
  • Energy Consumption
  • Transportation

Main causes air pollutants are:

  • Sulf

lfur Dio ioxid ide S SO2

  • Nit

itrogen Dio ioxid ide N NO2

  • Ozone O3
  • Carbon Monoxid

ide C CO

  • Carbon Dio

ioxid ide CO2

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Aim of the Study

In this study, the relation between NO2 from Sentinel- 5p and population statistics have been investigated. Turkey has been selected as a study area.

Sentinel-5p

Global revisit time 24h NO2 O3 CO SO2 CH4 HCHO

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Data & Methods

1000000 2000000 3000000 4000000 5000000 6000000 ANKARA BURSA ADANA GAZOANTEP KOCAELI DIYARBAKIR MANISA SAMSUN VAN DENIZLI SAKARYA ESKIŞEHIR MALATYA ERZURUM AFYON ADIYAMAN ZONGULDAK ELAZIG AGRI CORUM ŞIRNAK ISPARTA EDIRNE AKSARAY KASTAMONU BURDUR NIGDE RIZE SIIRT NEVŞEHIR KIRIKKALE BINGOL KARAMAN KIRŞEHIR BILECIK IGDIR CANKIRI ARTVIN K.MARAŞ TUNCELI

Turkey Population 2018

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Data & Methods

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  • Using the Google Earth Engine tools, the average NO2 values over

Turkey in the period of 10 July 2018 – 10 January 2019, were downloaded and statistically correlated with the population statistics for Turkey`s population from 2018.

  • For all 81 provinces in Turkey, the minimum, maximum, mean, and

sum of the NO2 values were extracted.

  • Because of the specific geographical position of Istanbul, it has been

excluded from the statistical analyses.

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Results

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The correlation between the maximum value of NO2 and the population is r = 0.72. The correlation between the summary

  • f

the NO2 and the population statistics is r = 0.76.

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Results

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Since Istanbul is surrounded from both north and south part with sea (Black Sea and Marmara Sea), the wind direction takes an important role in the air pollution and air quality. Thus, as shown in Ruso et al. [9], the average wind direction in the Black Sea and Marmara Sea region, is north-east south-west.

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Dis iscussion & Conclusion

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 Due to urban structure of the mega city, Istanbul, the predominant wind direction in the city and the possible wind transport of pollutants to neighboring cities. Air pollutants from Istanbul are carried to north-east south-west wind directions

  • ver the Marmara Sea.

 The positive correlation between NO2 and population statistics was expected as more than 80% of the NO2 comes from motor vehicle exhaust.  In comparison with other satellite remote sensing sensors for monitoring the air quality, Sentinel-5p has better spatial and spectral resolution, allowing the users to be able to observe smaller areas such as single cities

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Thank you for your attention

For any questions please contact us: Gordana KAPLAN - kaplangorde@gmail.com Zehra YIGIT AVDAN - zyigit@eskisehir.edu.tr Ugur AVDAN - uavdan@eskisehir.edu.tr Eskisehir Technical University, Eskisehir - Turkey

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