{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:36.009190", "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": "2020-Apr-10_to_2020-Apr-15_84.0_42.5"}, "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": 2020040001569}, "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": "April 10 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 15 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 52085.783467624766}, "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": ["China"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 42.5}, "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": 84.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "84.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 83.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 87.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 41.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.0, 43.25], [84.53, 43.03], [84.75, 42.5], [84.53, 41.97], [84.0, 41.75], [83.47, 41.97], [83.25, 42.5], [83.47, 43.03], [84.0, 43.25]]]]}, "2020-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.35, 43.25], [83.25, 43.5], [83.47, 44.03], [84.0, 44.25], [84.25, 44.15], [84.5, 44.25], [84.75, 44.15], [85.0, 44.25], [85.5, 44.04], [86.0, 44.25], [86.25, 44.15], [86.5, 44.25], [87.03, 44.03], [87.18, 43.68], [87.53, 43.53], [87.75, 43.0], [87.53, 42.47], [87.0, 42.25], [86.75, 42.35], [86.5, 42.25], [85.97, 42.47], [85.82, 42.82], [85.5, 42.96], [85.18, 42.82], [85.03, 42.47], [84.68, 42.32], [84.53, 41.97], [84.0, 41.75], [83.47, 41.97], [83.25, 42.5], [83.35, 42.75], [83.25, 43.0], [83.35, 43.25]]]]}, "2020-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.25, 43.5], [83.47, 44.03], [84.0, 44.25], [84.25, 44.15], [84.5, 44.25], [84.75, 44.15], [85.0, 44.25], [85.25, 44.15], [85.5, 44.25], [85.75, 44.15], [86.0, 44.25], [86.25, 44.15], [86.5, 44.25], [87.03, 44.03], [87.18, 43.68], [87.53, 43.53], [87.75, 43.0], [87.53, 42.47], [87.0, 42.25], [86.75, 42.35], [86.5, 42.25], [86.25, 42.35], [86.0, 42.25], [85.7, 42.38], [85.53, 41.97], [85.0, 41.75], [84.75, 41.85], [84.5, 41.75], [84.25, 41.85], [84.0, 41.75], [83.75, 41.85], [83.5, 41.75], [82.97, 41.97], [82.75, 42.5], [82.97, 43.03], [83.32, 43.18], [83.35, 43.25], [83.25, 43.5]]]]}, "2020-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.25, 43.5], [83.47, 44.03], [84.0, 44.25], [84.25, 44.15], [84.5, 44.25], [84.75, 44.15], [85.0, 44.25], [85.25, 44.15], [85.5, 44.25], [85.75, 44.15], [86.0, 44.25], [86.25, 44.15], [86.5, 44.25], [87.03, 44.03], [87.18, 43.68], [87.53, 43.53], [87.68, 43.18], [88.03, 43.03], [88.25, 42.5], [88.15, 42.25], [88.25, 42.0], [88.03, 41.47], [87.5, 41.25], [86.97, 41.47], [86.82, 41.82], [86.75, 41.85], [86.5, 41.75], [86.25, 41.85], [86.0, 41.75], [85.75, 41.85], [85.5, 41.75], [85.25, 41.85], [85.0, 41.75], [84.75, 41.85], [84.5, 41.75], [84.25, 41.85], [84.0, 41.75], 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"value": [2.1508239481082114, 1.9636456004676575, 2.4433522871769355, 6.095277283091491, 4.9788007810929, 4.8868017905725765]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.1508239481082114, 4.356225933103872, 5.715491801588598, 19.154961437307122, 19.675283881896974, 20.206548401424698]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.0991085446391935, 5.767840363181546, 6.191909650860254, 7.589254487350212, 6.345742192235701, 5.5955321008887005]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.0991085446391935, 6.44762783915121, 7.829285533687823, 9.424772689228178, 7.891221040381822, 6.7556815948646545]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2338134566718562, 1.425991584623748, 1.5244242441630316, 1.8653157204461448, 1.562882846724564, 1.3992662085827154]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2338134566718562, 1.7054566168751004, 1.8658447358167098, 2.183110262483439, 1.8493675662395321, 1.6353641440082833]}}