{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:11.903513", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2017-Oct-07_to_2017-Oct-09_278.5_54.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2017100001567}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "October 07 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 09 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 66315.79266033198}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["Hudson Bay"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 54.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 278.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "278.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 276.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 281.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 54.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.53, 53.47], [-83.75, 54.0], [-83.53, 54.53], [-83.0, 54.75], [-82.75, 54.65], [-82.68, 54.68], [-82.53, 55.03], [-82.0, 55.25], [-81.75, 55.15], [-81.5, 55.25], [-81.25, 55.15], [-81.0, 55.25], [-80.75, 55.15], [-80.5, 55.25], [-80.25, 55.15], [-80.0, 55.25], [-79.47, 55.03], [-79.32, 54.68], [-79.25, 54.65], [-79.0, 54.75], [-78.47, 54.53], [-78.25, 54.0], [-78.35, 53.75], [-78.25, 53.5], [-78.35, 53.25], [-78.25, 53.0], [-78.35, 52.75], [-78.25, 52.5], [-78.47, 51.97], [-78.82, 51.82], [-78.97, 51.47], [-79.5, 51.25], [-79.75, 51.35], [-80.0, 51.25], [-80.53, 51.47], [-80.68, 51.82], [-80.75, 51.85], [-81.0, 51.75], [-81.25, 51.85], [-81.5, 51.75], [-82.03, 51.97], [-82.18, 52.32], [-82.53, 52.47], [-82.75, 53.0], [-82.65, 53.25], [-82.68, 53.32], [-82.75, 53.35], [-83.0, 53.25], [-83.53, 53.47]]]]}, "2017-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.53, 53.47], [-83.75, 54.0], [-83.53, 54.53], [-83.0, 54.75], [-82.75, 54.65], [-82.68, 54.68], [-82.53, 55.03], [-82.0, 55.25], [-81.75, 55.15], [-81.5, 55.25], [-81.25, 55.15], [-81.0, 55.25], [-80.75, 55.15], [-80.5, 55.25], [-80.25, 55.15], [-80.0, 55.25], [-79.47, 55.03], [-79.32, 54.68], [-79.25, 54.65], [-79.0, 54.75], [-78.47, 54.53], [-78.25, 54.0], [-78.35, 53.75], [-78.25, 53.5], [-78.35, 53.25], [-78.25, 53.0], [-78.35, 52.75], [-78.25, 52.5], [-78.47, 51.97], [-78.82, 51.82], [-78.97, 51.47], [-79.5, 51.25], [-79.75, 51.35], [-80.0, 51.25], [-80.53, 51.47], [-80.68, 51.82], [-80.75, 51.85], [-81.0, 51.75], [-81.25, 51.85], [-81.5, 51.75], [-82.03, 51.97], [-82.18, 52.32], [-82.53, 52.47], [-82.75, 53.0], [-82.65, 53.25], [-82.68, 53.32], [-82.75, 53.35], [-83.0, 53.25], [-83.53, 53.47]]]]}, "2017-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.53, 53.47], [-83.75, 54.0], [-83.53, 54.53], [-83.0, 54.75], [-82.75, 54.65], [-82.68, 54.68], [-82.53, 55.03], [-82.0, 55.25], [-81.75, 55.15], [-81.5, 55.25], [-81.25, 55.15], [-81.0, 55.25], [-80.75, 55.15], [-80.5, 55.25], [-80.25, 55.15], [-80.0, 55.25], [-79.47, 55.03], [-79.32, 54.68], [-79.25, 54.65], [-79.0, 54.75], [-78.47, 54.53], [-78.25, 54.0], [-78.35, 53.75], [-78.25, 53.5], [-78.35, 53.25], [-78.25, 53.0], [-78.35, 52.75], [-78.25, 52.5], [-78.47, 51.97], [-78.82, 51.82], [-78.97, 51.47], [-79.5, 51.25], [-79.75, 51.35], [-80.0, 51.25], [-80.53, 51.47], [-80.68, 51.82], [-80.75, 51.85], [-81.0, 51.75], [-81.25, 51.85], [-81.5, 51.75], [-82.03, 51.97], [-82.18, 52.32], [-82.53, 52.47], [-82.75, 53.0], [-82.65, 53.25], [-82.68, 53.32], [-82.75, 53.35], [-83.0, 53.25], [-83.53, 53.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.134504849071391}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.735668618799422}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.682923047171812, 10.46154630479839, 10.611360512412375]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.860770175160326, 11.956235780368104, 12.444789556695753]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.144802711464432, 5.01727926599079, 5.044923878943044]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.2365494867219695, 7.134504849071391, 5.7374193196970396]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5798617643846158, 1.869724972762715, 1.8327722517756382]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8431668691244039, 2.1749216347607367, 2.1332928508323215]}}