{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:36.668617", "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-Apr-27_to_2024-Apr-30_276.5_41.5"}, "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": 2024040002004}, "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 27 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 30 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": 253844.42769833424}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": 41.5}, "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": 276.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "276.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 273.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 279.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-87.04, 43.0], [-87.25, 43.5], [-87.03, 44.03], [-86.5, 44.25], [-85.97, 44.03], [-85.82, 43.68], [-85.75, 43.65], 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[-87.03, 37.47], [-87.25, 38.0], [-87.15, 38.25], [-87.25, 38.5], [-87.15, 38.75], [-87.25, 39.0], [-87.15, 39.25], [-87.25, 39.5], [-87.15, 39.75], [-87.25, 40.0], [-87.15, 40.25], [-87.18, 40.32], [-87.53, 40.47], [-87.75, 41.0], [-87.54, 41.5], [-87.75, 42.0], [-87.53, 42.53], [-87.18, 42.68], [-87.04, 43.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-87.75, 42.0], [-87.52999999999997, 42.53], [-87.18, 42.68], [-87.04000000000002, 43.0], [-87.25, 43.5], [-87.02999999999997, 44.03], [-86.5, 44.25], [-85.97000000000003, 44.03], [-85.82, 43.68], [-85.75, 43.65], [-85.5, 43.75], [-84.97000000000003, 43.53], [-84.82, 43.18], [-84.75, 43.15], [-84.5, 43.25], [-84.25, 43.15], [-84.0, 43.25], 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20.97609212546729, 20.327114962661426, 16.923299432931287]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.223356483148336, 22.613161926469786, 22.416242560701733, 16.923299432931287]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.5448639579780234, 8.054678793129675, 7.200069886535194, 5.91320070007157]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.024115479478269, 10.115318199522449, 10.067487180468277, 5.91320070007157]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7140012558467963, 2.098614726003222, 1.865263813102331, 1.5985188374462285]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2995219441206585, 2.54846640494298, 2.462030089135415, 1.5985188374462285]}}