{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Yang C"],"funding":["Natural Environment Research Council","Research on Large-area and Multi-target Classification Method for Massive Multi-source Remote Sensing Based on Graph-spectrum Feature Model"],"pagination":["613"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9553929"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["9(1)"],"pubmed_abstract":["Nitrate pollution in groundwater, which is an international problem, threatens human health and the environment. It could take decades for nitrate to transport in the groundwater system. When understanding the impacts of this nitrate legacy on water quality, the nitrate transport velocity (v<sub>N</sub>) in the unsaturated zone (USZ) is of great significance. Although some local USZ v<sub>N</sub> data measured or simulated are available, there has been no such a dataset at the global scale. Here, we present a Global-scale unsaturated zone Nitrate transport Velocity dataset (GNV) generated from a Nitrate Time Bomb (NTB) model using global permeability and porosity and global average annual groundwater recharge data. To evaluate GNV, a baseline dataset of USZ v<sub>N</sub> was created using "],"journal":["Scientific data"],"pubmed_title":["Nitrate transport velocity data in the global unsaturated zones."],"pmcid":["PMC9553929"],"funding_grant_id":["bgs06003"],"pubmed_authors":["Li Y","Huang S","Zeng Q","Chen Y","Chen S","Yang C","Wang L"],"additional_accession":[]},"is_claimable":false,"name":"Nitrate transport velocity data in the global unsaturated zones.","description":"Nitrate pollution in groundwater, which is an international problem, threatens human health and the environment. It could take decades for nitrate to transport in the groundwater system. When understanding the impacts of this nitrate legacy on water quality, the nitrate transport velocity (v<sub>N</sub>) in the unsaturated zone (USZ) is of great significance. Although some local USZ v<sub>N</sub> data measured or simulated are available, there has been no such a dataset at the global scale. Here, we present a Global-scale unsaturated zone Nitrate transport Velocity dataset (GNV) generated from a Nitrate Time Bomb (NTB) model using global permeability and porosity and global average annual groundwater recharge data. To evaluate GNV, a baseline dataset of USZ v<sub>N</sub> was created using ","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Oct","modification":"2026-05-27T19:10:52.465Z","creation":"2025-02-19T03:23:13.349Z"},"accession":"S-EPMC9553929","cross_references":{"pubmed":["36220857"],"doi":["10.1038/s41597-022-01621-x"]}}