{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:27.905146", "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": "2010-Aug-02_to_2010-Aug-05_226.0_61.5"}, "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": 2010080001605}, "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": "August 02 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 2010"}, "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": 73622.66777565793}, "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": ["N.W.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": 61.5}, "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": 226.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "226.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 218.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 226.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 59.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 63.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-134.53, 60.97], [-134.75, 61.5], [-134.53, 62.03], [-134.0, 62.25], [-133.75, 62.15], [-133.5, 62.25], [-132.97, 62.03], [-132.75, 61.5], [-132.97, 60.97], [-133.5, 60.75], [-133.75, 60.85], [-134.0, 60.75], [-134.53, 60.97]]]]}, "2010-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-142.15, 62.75], [-142.25, 63.0], [-142.03, 63.53], [-141.5, 63.75], [-141.25, 63.65], [-141.0, 63.75], [-140.47, 63.53], [-140.32, 63.18], [-140.25, 63.15], [-140.0, 63.25], [-139.75, 63.15], [-139.5, 63.25], [-139.25, 63.15], [-139.0, 63.25], [-138.75, 63.15], [-138.5, 63.25], [-137.97, 63.03], [-137.82, 62.68], [-137.47, 62.53], [-137.32, 62.18], [-137.25, 62.15], [-137.0, 62.25], [-136.75, 62.15], [-136.5, 62.25], [-136.25, 62.15], [-136.0, 62.25], [-135.75, 62.15], [-135.5, 62.25], [-135.2, 62.13], [-135.03, 62.53], [-134.5, 62.75], [-134.25, 62.65], [-134.0, 62.75], [-133.47, 62.53], [-133.32, 62.18], [-132.97, 62.03], [-132.75, 61.5], [-132.85, 61.25], [-132.75, 61.0], [-132.96, 60.5], [-132.75, 60.0], [-132.97, 59.47], [-133.5, 59.25], [-134.03, 59.47], [-134.18, 59.82], [-134.5, 59.96], [-135.0, 59.75], [-135.25, 59.85], [-135.5, 59.75], [-135.75, 59.85], [-136.0, 59.75], [-136.25, 59.85], [-136.5, 59.75], [-136.75, 59.85], [-137.0, 59.75], [-137.53, 59.97], [-137.68, 60.32], [-137.75, 60.35], [-138.0, 60.25], [-138.53, 60.47], [-138.68, 60.82], [-138.75, 60.85], [-139.0, 60.75], [-139.25, 60.85], [-139.5, 60.75], [-139.75, 60.85], [-140.0, 60.75], [-140.25, 60.85], [-140.5, 60.75], [-141.03, 60.97], [-141.18, 61.32], [-141.25, 61.35], [-141.5, 61.25], [-142.03, 61.47], [-142.25, 62.0], [-142.15, 62.25], [-142.25, 62.5], [-142.15, 62.75]]]]}, "2010-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-142.15, 62.75], [-142.25, 63.0], [-142.03, 63.53], [-141.5, 63.75], [-141.25, 63.65], [-141.0, 63.75], [-140.47, 63.53], [-140.32, 63.18], [-140.25, 63.15], [-140.0, 63.25], [-139.75, 63.15], [-139.5, 63.25], [-139.25, 63.15], [-139.0, 63.25], [-138.75, 63.15], [-138.5, 63.25], [-137.97, 63.03], 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17.57186898003448]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.086116130678022, 19.939228172411504, 21.138160861319818, 20.63199845209641]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.937570599678537, 4.804121283692455, 5.978068319638996, 4.984302690273638]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.955158825153603, 5.732014999300702, 7.368789928260867, 6.210981648569032]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5893455120793152, 1.6293795447087909, 2.0234989506887637, 1.6990092675000061]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5977730803209174, 1.9576411422225823, 2.4976084777558447, 2.0450883457503113]}}