{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:26:48.897559", "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": "2021-Jul-26_to_2021-Jul-29_266.0_44.0"}, "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": 2021070002839}, "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 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 29 2021"}, "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": 75764.35100477043}, "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"]}, "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": 44.0}, "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": 266.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "266.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 262.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 268.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 42.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 45.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.03, 43.97], [-96.25, 44.5], [-96.03, 45.03], [-95.5, 45.25], [-95.25, 45.15], [-95.18, 45.18], [-95.03, 45.53], [-94.5, 45.75], [-94.25, 45.65], [-94.0, 45.75], [-93.75, 45.65], [-93.5, 45.75], [-92.97, 45.53], [-92.82, 45.18], [-92.47, 45.03], [-92.32, 44.68], [-91.97, 44.53], [-91.75, 44.0], [-91.97, 43.47], [-92.5, 43.25], [-92.75, 43.35], [-93.0, 43.25], [-93.25, 43.35], [-93.5, 43.25], [-93.75, 43.35], [-94.0, 43.25], [-94.25, 43.35], [-94.5, 43.25], [-95.03, 43.47], [-95.18, 43.82], [-95.25, 43.85], [-95.5, 43.75], [-96.03, 43.97]]]]}, "2021-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.03, 44.03], [-97.5, 44.25], [-97.25, 44.15], [-97.0, 44.25], [-96.75, 44.15], [-96.5, 44.25], [-96.25, 44.15], [-96.18, 44.18], [-96.15, 44.25], [-96.25, 44.5], [-96.03, 45.03], [-95.5, 45.25], [-95.25, 45.15], [-95.18, 45.18], [-95.03, 45.53], [-94.5, 45.75], [-94.25, 45.65], [-94.0, 45.75], [-93.75, 45.65], [-93.5, 45.75], [-92.97, 45.53], [-92.82, 45.18], [-92.75, 45.15], [-92.5, 45.25], [-91.97, 45.03], [-91.82, 44.68], [-91.47, 44.53], [-91.25, 44.0], [-91.47, 43.47], [-92.0, 43.25], [-92.25, 43.35], [-92.32, 43.32], [-92.47, 42.97], [-93.0, 42.75], [-93.25, 42.85], [-93.5, 42.75], [-93.75, 42.85], [-94.0, 42.75], [-94.25, 42.85], [-94.32, 42.82], [-94.47, 42.47], [-95.0, 42.25], [-95.25, 42.35], [-95.5, 42.25], [-95.75, 42.35], [-96.0, 42.25], [-96.25, 42.35], [-96.5, 42.25], [-96.75, 42.35], [-97.0, 42.25], [-97.25, 42.35], [-97.5, 42.25], [-98.03, 42.47], [-98.25, 43.0], [-98.15, 43.25], [-98.25, 43.5], [-98.03, 44.03]]]]}, "2021-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.03, 44.03], [-97.5, 44.25], [-97.25, 44.15], [-97.0, 44.25], [-96.75, 44.15], [-96.5, 44.25], [-96.25, 44.15], [-96.18, 44.18], [-96.15, 44.25], [-96.25, 44.5], [-96.03, 45.03], [-95.5, 45.25], [-95.25, 45.15], [-95.18, 45.18], [-95.03, 45.53], [-94.5, 45.75], [-94.25, 45.65], [-94.0, 45.75], [-93.75, 45.65], [-93.5, 45.75], [-92.97, 45.53], [-92.82, 45.18], [-92.75, 45.15], [-92.5, 45.25], [-91.97, 45.03], [-91.82, 44.68], [-91.47, 44.53], [-91.25, 44.0], [-91.47, 43.47], [-92.0, 43.25], [-92.25, 43.35], [-92.32, 43.32], [-92.47, 42.97], [-93.0, 42.75], [-93.25, 42.85], [-93.5, 42.75], [-93.75, 42.85], [-94.0, 42.75], [-94.25, 42.85], [-94.32, 42.82], [-94.47, 42.47], [-95.0, 42.25], [-95.25, 42.35], [-95.5, 42.25], [-95.75, 42.35], [-96.0, 42.25], [-96.25, 42.35], [-96.5, 42.25], [-96.75, 42.35], [-97.0, 42.25], [-97.25, 42.35], [-97.5, 42.25], [-98.03, 42.47], [-98.25, 43.0], [-98.15, 43.25], [-98.25, 43.5], [-98.03, 44.03]]]]}, "2021-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.03, 44.03], [-97.5, 44.25], [-97.25, 44.15], [-97.0, 44.25], [-96.75, 44.15], [-96.5, 44.25], [-96.25, 44.15], [-96.18, 44.18], [-96.15, 44.25], [-96.25, 44.5], [-96.03, 45.03], [-95.5, 45.25], [-95.25, 45.15], [-95.0, 45.25], [-94.75, 45.15], [-94.5, 45.25], [-94.25, 45.15], [-94.0, 45.25], [-93.75, 45.15], [-93.5, 45.25], [-93.25, 45.15], [-93.0, 45.25], [-92.75, 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27.51559953527982, 28.488959035870323, 27.37061524905016]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.4692290968365, 29.379548078865923, 30.96181856544564, 28.666614213198727]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.4124996269808445, 5.032187139798744, 6.108786054125996, 5.084727761221803]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.979257889081168, 6.583015449995685, 7.732862446467209, 5.909018389750997]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4955275995457111, 1.6688858871252963, 2.014452800165016, 1.6787314607277457]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7083569756832904, 2.0954662026407544, 2.4456371115406603, 2.009100307938547]}}