Evidence map›Paper›PMID 36820241›Full record

ArticlePure and applied geophysics2023

Atmospheric Boundary Layer Over Ahmedabad, Western Indian Region: Impact of COVID-19 Nationwide Lockdown.

Sourita Saha, Som Sharma, Abha Chhabra, Prashant Kumar, Niranjan K Kondapalli, Dharmendra Kamat, Shyam Lal

Abstract read
In one paragraph

Article in Pure and applied geophysics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Sourita SahaPhysical Research Laboratory, Ahmedabad, India.
Som SharmaPhysical Research Laboratory, Ahmedabad, India.ORCID 0000-0002-3517-6204
Abha ChhabraSpace Applications Centre, Ahmedabad, India.
Prashant KumarSpace Applications Centre, Ahmedabad, India.
Niranjan K KondapalliMinistry of Earth Sciences, NCMRWF, Noida, India.
Dharmendra KamatPhysical Research Laboratory, Ahmedabad, India.
Shyam LalPhysical Research Laboratory, Ahmedabad, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The government of India imposed a nationwide lockdown to tackle the outbreak of COVID-19 in 2020. This period witnessed record low anthropogenic activity, which had severe socio-economic impacts but also had orthogonal effects on the ambient air quality of the atmosphere. This study focuses on the variations in the atmospheric boundary layer (ABL) over a western Indian urban region in the light of COVID-19. Continuous backscatter recorded by a ceilometer, stationed at Ahmedabad, was used in this study to monitor the ABL during the national lockdown (NLD) in 2020 and state restrictions in 2021, and compared with the control year of 2019. In parallel, improvement in air quality during the NLD was observed by the SAFAR air quality station at Ahmedabad, with decreased particulate matter concentrations. The ground-based observations were substantiated by the ERA5 reanalysis dataset. A decline in the ABL height was recorded during the NLD, which showed improvement in 2021 but which was shy of the ABL in 2019. This was correlated with rain events during the observational period, recorded by an automatic weather station.

Indexed as

atmospheric boundary layerceilometerCOVID-19particulate matter

Identifiers

PMID36820241
PMCPMC9931163

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.