Urban VOC Fluxes and Source Apportionment in Delhi, November 2018
Updated 1mo ago
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Description
Delhi, India, hosts this dataset of high-frequency volatile organic compound measurements and surface-atmosphere fluxes from October to November 2018. It includes 5 Hz VOC concentration time series, co-located wind data, and fluxes derived from eddy-covariance and Virtual Eddy Accumulation methods. The dataset was produced by the Environmental Information Data Centre with support from the Natural Environment Research Council and the Indian Ministry of Earth Sciences.
Use Cases
Assess local emission sources based on Positive Matrix Factorisation outputs.
Investigate bidirectional VOC exchange based on updraft and downdraft concentration data.
Analyze diurnal patterns based on high-frequency time series.
Study chemical drivers relevant to ozone formation based on supporting chemical indicators.
Model urban atmospheric reactivity based on source-resolved VOC factor fluxes.
Strengths
High-frequency 5 Hz VOC concentration time series.
Data collected over a 45-day period from 9 October to 23 November 2018.
Includes source-resolved VOC factors and their fluxes from Positive Matrix Factorisation.
Co-located high-frequency wind measurements from a sonic anemometer.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment.
Data may reflect temporal bias inherent to a single autumn measurement campaign.
Provenance
Source
Environmental Information Data Centre
Collection Method
Measured by Proton-Transfer-Reaction Time-of-Flight Mass Spectrometer (PTR-TOF-MS) and sonic anemometer at a 25-metre tower.
Time Range
9 October 2018 to 23 November 2018
Freshness
Last updated 2026-04-16 10:11:00.711915; freshness should be verified.
Geography
Old Delhi, India, at the Indira Gandhi Delhi Technical University for Women (IGDTUW)