{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:53:12.637290", "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": "2024-Sep-09_to_2024-Sep-12_257.5_45.5"}, "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": 2024090001271}, "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": "September 09 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 12 2024"}, "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": 101218.16820647097}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "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": 45.5}, "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": 257.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "257.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 253.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 258.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.75, 44.0], [-106.53, 44.53], [-106.18, 44.68], [-106.15, 44.75], [-106.25, 45.0], [-106.03, 45.53], [-105.68, 45.68], [-105.53, 46.03], [-105.0, 46.25], [-104.75, 46.15], [-104.68, 46.18], [-104.53, 46.53], [-104.0, 46.75], [-103.75, 46.65], [-103.5, 46.75], [-103.25, 46.65], [-103.0, 46.75], [-102.75, 46.65], [-102.5, 46.75], [-101.97, 46.53], [-101.75, 46.0], [-101.85, 45.75], [-101.75, 45.5], [-101.85, 45.25], [-101.82, 45.18], [-101.47, 45.03], [-101.25, 44.5], [-101.35, 44.25], [-101.25, 44.0], [-101.35, 43.75], [-101.25, 43.5], [-101.47, 42.97], [-102.0, 42.75], [-102.53, 42.97], [-102.68, 43.32], [-102.75, 43.35], [-102.82, 43.32], [-102.97, 42.97], [-103.5, 42.75], [-103.75, 42.85], [-104.0, 42.75], [-104.25, 42.85], [-104.5, 42.75], [-104.75, 42.85], [-105.0, 42.75], [-105.25, 42.85], [-105.5, 42.75], [-106.03, 42.97], [-106.18, 43.32], [-106.53, 43.47], [-106.75, 44.0]]]]}, "2024-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.75, 44.0], [-106.53, 44.53], [-106.18, 44.68], [-106.15, 44.75], [-106.25, 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46.03], [-105.0, 46.25], [-104.75, 46.15], [-104.68, 46.18], [-104.53, 46.53], [-104.0, 46.75], [-103.75, 46.65], [-103.5, 46.75], [-103.25, 46.65], [-103.0, 46.75], [-102.75, 46.65], [-102.5, 46.75], [-101.97, 46.53], [-101.82, 46.18], [-101.47, 46.03], [-101.32, 45.68], [-100.97, 45.53], [-100.75, 45.0], [-100.85, 44.75], [-100.75, 44.5], [-100.96, 44.0], [-100.75, 43.5], [-100.97, 42.97], [-101.5, 42.75], [-101.75, 42.85], [-102.0, 42.75], [-102.5, 42.96], [-103.0, 42.75], [-103.25, 42.85], [-103.5, 42.75], [-103.75, 42.85], [-104.0, 42.75], [-104.25, 42.85], [-104.5, 42.75], [-104.75, 42.85], [-105.0, 42.75], [-105.25, 42.85], [-105.5, 42.75], [-106.03, 42.97], [-106.18, 43.32], [-106.53, 43.47], [-106.75, 44.0]]]]}, "2024-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.25, 45.0], [-106.03, 45.53], [-105.68, 45.68], [-105.53, 46.03], [-105.0, 46.25], [-104.75, 46.15], [-104.68, 46.18], [-104.53, 46.53], [-104.0, 46.75], [-103.75, 46.65], [-103.5, 46.75], 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"description": "The daily evolution of mean t2m.", "value": [24.01905721028652, 24.184179643271648, 23.64894405862566, 24.32656377156576]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.667494710286462, 26.223072306315146, 25.23223139444991, 26.823613739013695]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.604924851276266, 6.947478014231036, 6.798780148124599, 7.752198377151364]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.726439489147481, 7.7866196563394965, 8.004852183618539, 9.126035347770994]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4732785058800306, 1.5494084505645906, 1.4975508731542795, 1.7279735322386605]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6013400689372579, 1.8197343132364494, 1.7675218192367002, 2.0942037964846247]}}