{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:42.596116", "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-Aug-16_to_2024-Aug-21_253.5_41.0"}, "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": 2024080002080}, "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 16 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 21 2024"}, "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": 65630.06473714368}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 41.0}, "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": 253.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "253.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 252.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 255.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-105.75, 38.85], [-106.0, 38.75], [-106.25, 38.85], [-106.5, 38.75], [-107.03, 38.97], [-107.25, 39.5], [-107.15, 39.75], [-107.18, 39.82], [-107.25, 39.85], [-107.5, 39.75], [-108.03, 39.97], [-108.25, 40.5], [-108.03, 41.03], [-107.68, 41.18], [-107.65, 41.25], [-107.75, 41.5], [-107.53, 42.03], [-107.0, 42.25], [-106.7, 42.13], [-106.53, 42.53], [-106.0, 42.75], [-105.75, 42.65], [-105.68, 42.68], [-105.53, 43.03], [-105.0, 43.25], [-104.47, 43.03], [-104.32, 42.68], [-103.97, 42.53], [-103.75, 42.0], [-103.97, 41.47], [-104.37, 41.3], [-104.25, 41.0], [-104.35, 40.75], [-104.32, 40.68], [-103.97, 40.53], [-103.75, 40.0], [-103.85, 39.75], [-103.75, 39.5], [-103.97, 38.97], [-104.5, 38.75], [-104.75, 38.85], [-105.0, 38.75], [-105.25, 38.85], [-105.5, 38.75], [-105.75, 38.85]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.North-America", "C.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.03, 40.03], [-105.5, 40.25], [-104.97, 40.03], [-104.75, 39.5], [-104.97, 38.97], [-105.5, 38.75], [-106.03, 38.97], [-106.25, 39.5], [-106.03, 40.03]]]]}, "2024-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.25, 40.0], [-107.15, 40.25], [-107.25, 40.5], [-107.15, 40.75], [-107.25, 41.0], [-107.03, 41.53], [-106.62, 41.7], [-106.75, 42.0], [-106.53, 42.53], [-106.0, 42.75], [-105.47, 42.53], [-105.32, 42.18], [-104.97, 42.03], [-104.82, 41.68], [-104.47, 41.53], [-104.25, 41.0], [-104.35, 40.75], [-104.32, 40.68], [-103.97000000000003, 40.53], [-103.75, 40.0], [-103.85000000000002, 39.75], [-103.75, 39.5], [-103.97000000000003, 38.97], [-104.5, 38.75], [-104.75, 38.85], [-105.0, 38.75], [-105.25, 38.85], [-105.5, 38.75], [-105.75, 38.85], [-106.0, 38.75], [-106.25, 38.85], [-106.5, 38.75], [-107.03, 38.97], [-107.25, 39.5], [-107.15, 39.75], [-107.25, 40.0]]]]}, "2024-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.25, 40.0], [-107.15, 40.25], [-107.25, 40.5], [-107.15, 40.75], [-107.25, 41.0], [-107.03, 41.53], [-106.62, 41.7], [-106.75, 42.0], [-106.53, 42.53], [-106.0, 42.75], [-105.75, 42.65], [-105.68, 42.68], [-105.53, 43.03], [-105.0, 43.25], [-104.47, 43.03], [-104.32, 42.68], [-103.97000000000003, 42.53], [-103.75, 42.0], [-103.97000000000003, 41.47], [-104.37, 41.3], [-104.25, 41.0], [-104.35, 40.75], [-104.32, 40.68], [-103.97000000000003, 40.53], [-103.75, 40.0], [-103.85000000000002, 39.75], [-103.75, 39.5], [-103.97000000000003, 38.97], [-104.5, 38.75], [-104.75, 38.85], [-105.0, 38.75], [-105.25, 38.85], [-105.5, 38.75], [-105.75, 38.85], [-106.0, 38.75], [-106.25, 38.85], [-106.5, 38.75], [-107.03, 38.97], [-107.25, 39.5], [-107.15, 39.75], [-107.25, 40.0]]]]}, "2024-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.65, 41.25], [-107.75, 41.5], [-107.53, 42.03], [-107.0, 42.25], [-106.69999999999999, 42.13], 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"description": "The daily evolution of mean t2m anomalies.", "value": [2.597966452049775, 3.888953476513225, 4.0386699097589895, 3.3707912286458743, 3.2375012621041668, 4.023503107121517]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.597966452049775, 5.549181983583651, 5.777073176460931, 4.361153822514268, 4.396485140679999, 4.88241131380471]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3510392946807348, 1.7120610037322312, 1.6545044911968934, 1.4126215190823121, 1.274798417294564, 1.5772918677959724]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3510392946807348, 2.393204819350683, 1.9345017086995757, 1.83747182139506, 1.3554019590564397, 1.7163314560200469]}}