Ca_TP_data

This dataset provides annual near-surface total phosphorus (TP) concentration data for Canadian lakes from 1984 to 2023, derived from Landsat surface reflectance imagery and TPNet model retrievals. The Grid_TP dataset contains the median lake surface TP for each of Canada's 3,329 grids (1° × 0.5°), with LAT and LON representing the latitude and longitude of each grid's centroid. The Basin_TP dataset contains the median lake surface TP for each of Canada's 366 HydroBASINS Level-5 watersheds, with LAT and LON representing the latitude and longitude of each watershed's centroid. HYBAS_ID is a unique identifier for each watershed in the HydroBASINS dataset. Users can use the HYBAS_ID to obtain the complete boundary of a watershed. The BASIN_TYPE categorizes watersheds based on land use types, dividing them into five classes: 1 for urban, 2 for agricultural, 3 for tundra, 4 for boreal forest, and 5 for temperate forest watersheds. TP concentrations are expressed in µg/L. For any questions or issues regarding the use of this dataset, please contact Hongwei Guo at [e-mail].