{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:33.357427", "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": "2015-Jul-26_to_2015-Jul-28_267.5_48.5"}, "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": 2015070002926}, "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": "July 26 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 28 2015"}, "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": 202103.06237074756}, "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", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "E.North-America", "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": []}, "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": 48.5}, "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": 267.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "267.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 261.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 271.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.53, 49.53], [-98.18, 49.68], [-98.15, 49.75], [-98.18, 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46.25], [-93.75, 46.35], [-94.0, 46.25], [-94.53, 46.47], [-94.68, 46.82], [-94.75, 46.85], [-94.82, 46.82], [-94.97, 46.47], [-95.5, 46.25], [-96.03, 46.47], [-96.25, 47.0], [-96.15, 47.25], [-96.18, 47.32], [-96.25, 47.35], [-96.5, 47.25], [-96.75, 47.35], [-97.0, 47.25], [-97.25, 47.35], [-97.5, 47.25], [-98.03, 47.47], [-98.18, 47.82], [-98.53, 47.97], [-98.75, 48.5], [-98.65, 48.75], [-98.75, 49.0], [-98.53, 49.53]]]]}, "2015-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.53, 49.53], [-98.18, 49.68], [-98.15, 49.75], [-98.18, 49.82], [-98.53, 49.97], [-98.75, 50.5], [-98.53, 51.03], [-98.18, 51.18], [-98.03, 51.53], [-97.68, 51.68], [-97.53, 52.03], [-97.0, 52.25], [-96.47, 52.03], [-96.32, 51.68], [-96.2, 51.62], [-96.03, 52.03], [-95.5, 52.25], [-95.25, 52.15], [-95.0, 52.25], [-94.47, 52.03], [-94.32, 51.68], [-94.0, 51.54], [-93.5, 51.75], [-92.97, 51.53], [-92.82, 51.18], [-92.47, 51.03], [-92.32, 50.68], [-92.25, 50.65], [-92.0, 50.75], [-91.47, 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23.71097906733064]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.749492213471115, 26.011564914935605, 25.137975917423375]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.160246487011421, 5.176556548440221, 4.219713929241721]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.303412089922119, 6.744219198507437, 5.556436020143053]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4664976921925912, 1.8232208020455714, 1.4964884149143018]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8871014976104443, 2.415090247891071, 1.7297710409928937]}}