"GHWQ-8: Ganga\u2013Hooghly Multi-Parameter River Water Quality Dataset (8 stations, 12 parameters, monthly, Sep 2012 \u2013 May 2026)"
Year: 2026
Type: dataset
Abstract: "The Ganga-Hooghly Water Quality dataset (GHWQ-8) contains multi-parameter river water-quality records from eight monitoring stations along the Ganga-Hooghly river system in West Bengal, India (Nabadwip, Tribeni, Palta, Dakshmineswar, Howrah, Garden Reach, Uluberia and Diamond Harbour), covering September 2012 to May 2026. The records are derived from publicly available data published by the West Bengal Pollution Control Board (WBPCB) through its Environmental Management Information System (EMIS). The dataset comprises 31 physico-chemical and biological variables, including biochemical oxygen demand (BOD), chemical oxygen demand (COD), dissolved oxygen (DO), total coliform, pH, nitrate, ammonia, turbidity, conductivity and water temperature. Native sampling is irregular and mixed-frequency (mostly quarterly, with some monthly components; median interval about 27 days), and 94.3% of station-month-parameter values are directly observed. The records are harmonised to a uniform monthly grid of 165 time steps per station (1,320 station-month records): below-detection-limit values are set to half the detection limit, and gaps are filled by temporal interpolation followed by spatial k-nearest-neighbour imputation. The dataset supports research on spatiotemporal forecasting, graph-based learning over river networks, causal discovery, uncertainty quantification, forecasting at unmonitored stations and water-quality risk assessment."
Source: IEEE DataPort
DOI: 10.21227/fg9q-fk13
Author: Kiran Maharana
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7213618201