{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:43.378016", "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": "2019-Oct-09_to_2019-Oct-12_277.0_53.0"}, "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": 2019100001769}, "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 09 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 12 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 66178.4278270015}, "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": 53.0}, "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": 277.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "277.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 273.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 278.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.0, 53.25], [-85.75, 53.15], [-85.68, 53.18], [-85.53, 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53.75], [-83.75, 53.65], [-83.5, 53.75], [-83.25, 53.65], [-83.0, 53.75], [-82.75, 53.65], [-82.5, 53.75], [-82.25, 53.65], [-82.0, 53.75], [-81.75, 53.65], [-81.5, 53.75], [-80.97, 53.53], [-80.75, 53.0], [-80.85, 52.75], [-80.75, 52.5], [-80.85, 52.25], [-80.75, 52.0], [-80.97, 51.47], [-81.5, 51.25], [-81.75, 51.35], [-81.82, 51.32], [-81.97, 50.97], [-82.5, 50.75], [-82.75, 50.85], [-83.0, 50.75], [-83.25, 50.85], [-83.5, 50.75], [-83.75, 50.85], [-84.0, 50.75], [-84.25, 50.85], [-84.5, 50.75], [-84.75, 50.85], [-85.0, 50.75], [-85.53, 50.97], [-85.68, 51.32], [-85.75, 51.35], [-86.0, 51.25], [-86.25, 51.35], [-86.5, 51.25], [-87.03, 51.47], [-87.25, 52.0], [-87.03, 52.53], [-86.68, 52.68], [-86.53, 53.03], [-86.0, 53.25]]]]}, "2019-10-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.0, 53.75], [-84.75, 53.65], [-84.5, 53.75], [-84.25, 53.65], [-84.0, 53.75], [-83.75, 53.65], [-83.5, 53.75], [-83.25, 53.65], [-83.0, 53.75], [-82.75, 53.65], [-82.5, 53.75], 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10.832107770938421]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.057039387512475, 14.699635086326225, 12.780315983264018, 11.556172786878676]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.67642366359216, 8.696833074010302, 7.190931656422869, 6.58754345188489]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.934359293964178, 9.666512713046131, 7.996793599572072, 7.195262273328126]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.1056526219073604, 1.8422171125651001, 1.552478602881328, 1.544292388213033]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.347977589029738, 2.1196541347108475, 1.7131118112203447, 1.7336795377904084]}}