Impacts of reduced deposition of atmospheric nitrogen on coastal marine eco-system during substantial shift in human activities in the twenty-first century

Abstract

The novel infectious disease (COVID-19) took only a few weeks from its official inception in December 2019 to become a global pandemic in early 2020. Countries across the world went to lockdown, and various strict measures were implemented to reduce the further spread of the infection. Although, the strict lockdown measures were aimed at stopping the spread of COVID-19, however, Its positive implications were also observed for the environmental conditions across the global regions. The present study attempted to explore the eco-restoration of coastal marine system in response to reduced deposition of atmospheric nitrogen (NO 2 ) emission during the substantial shift in human activities across the global metropolitan cities. Remotely data of NO 2 emission were taken from Ozone Monitoring Instrument and the coastal water quality along the marine system was estimated from MODIS-Aqua Level-3 using Semi-Analytic Sediment Model (SASM). The changes in tropospheric NO 2 in 2020s were also compared with the long-term average changes over the baseline period 2015 À 2019. A significant reduction in anthropogenic mobility (85 À 90%) has been observed in almost all countries over ARTICLE HISTORY

Prediction of flash flood susceptibility using integrating analytic hierarchy process (AHP) and frequency ratio (FR) algorithms

“…Assessment and confirmation of accuracy are key procedures in flood risk management and vulnerability studies (Mohammadi et al, 2021;Mumtaz et al, 2021;Rahman et al, 2021;Shah et al, 2021). In order to verify the validity of the performed analysis and model, an accuracy evaluation is conducted.…”

Monitoring of Land Use–Land Cover Change and Potential Causal Factors of Climate Change in Jhelum District, Punjab, Pakistan, through GIS and Multi-Temporal Satellite Data

“…Climate variation showed the most substantial influence on the adaptation of LULC categories in numerous regions of the land [41,65,66]. Similarly, alternation in climatic impacts on the biosphere of the land has a close link with hydrological and energy chains, explaining the effect on the vegetation index (VI) where it increases to its highest quantity [67]. In recent years, universal variation in weather has had many influences on vegetation [7,68].…”

“…explaining the effect on the vegetation index (VI) where it increases to its highest quantity [67]. In recent years, universal variation in weather has had many influences on vegetation [7,68].…”

“…The KHAT (K) coefficients for 1990, 2000, 2010, and 2020 are 0.86, 0.82, 0.89, and 0.85, respectively, in the research area. The accuracy classification was stated as both the consumers' accuracy and producers' accuracy [67,71]. According to [72], the producers' accuracy is described as the quantity of land types properly categorized in the classification of the imagery, whereas the consumers' accuracy is the possibility that a type in the classification of imagery is precise when applied on the land.…”

Investigating the Potential Climatic Effects of Atmospheric Pollution across China under the National Clean Air Action Plan

“…Under such conditions, satellite and reanalysis data provide a significant opportunity to assess these phenomena. Many studies have explored the longterm variation of air pollutants and their interaction with climatic factors using ozone monitoring instrument (OMI) satellite data [52,53]. OMIs have been used for a variety of studies, such as analyzing the relationship between air pollutants (NO 2 , O 3 , SO 2 , CO) and meteorological factors over Bangladesh [54], analyzing the trends in NO 2 and SO 2 [55][56][57][58], evaluating the pollution emission inventory [59], as well as analyzing the long-term trends of NO 2 and SO 2 over East China [60].…”