{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:01.583196", "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": "2025-Jun-11_to_2025-Jun-13_298.5_44.5"}, "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": 2025060001932}, "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": "June 11 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 13 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 59237.87959976837}, "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"]}, "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": 44.5}, "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": 298.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 301.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-65.75, 43.5], [-65.53, 44.03], [-65.0, 44.25], [-64.75, 44.15], [-64.68, 44.18], [-64.53, 44.53], [-64.18, 44.68], [-64.03, 45.03], [-63.5, 45.25], [-63.25, 45.15], [-63.0, 45.25], [-62.75, 45.15], [-62.5, 45.25], [-62.25, 45.15], [-62.18, 45.18], [-62.03, 45.53], [-61.5, 45.75], [-61.25, 45.65], [-61.18, 45.68], [-61.03, 46.03], [-60.5, 46.25], [-60.25, 46.15], [-60.18, 46.18], [-60.03, 46.53], [-59.68, 46.68], [-59.53, 47.03], [-59.0, 47.25], [-58.47, 47.03], [-58.25, 46.5], [-58.35, 46.25], [-58.25, 46.0], [-58.35, 45.75], [-58.25, 45.5], [-58.35, 45.25], [-58.25, 45.0], [-58.47, 44.47], [-59.0, 44.25], [-59.25, 44.35], [-59.5, 44.25], [-59.75, 44.35], [-59.82, 44.32], [-59.97, 43.97], [-60.32, 43.82], [-60.47, 43.47], [-61.0, 43.25], [-61.25, 43.35], [-61.5, 43.25], [-61.75, 43.35], [-62.0, 43.25], [-62.25, 43.35], [-62.5, 43.25], [-63.03, 43.47], [-63.18, 43.82], [-63.25, 43.85], [-63.32, 43.82], [-63.47, 43.47], [-63.82, 43.32], [-63.97, 42.97], [-64.5, 42.75], [-64.75, 42.85], [-65.0, 42.75], [-65.53, 42.97], [-65.75, 43.5]]]]}}, "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": {"2025-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.0, 42.75], [-65.52999999999997, 42.97], [-65.75, 43.5], [-65.52999999999997, 44.03], [-65.0, 44.25], [-64.75, 44.15], [-64.68, 44.18], [-64.52999999999997, 44.53], [-64.18, 44.68], [-64.02999999999997, 45.03], [-63.5, 45.25], [-63.25, 45.15], [-63.0, 45.25], [-62.75, 45.15], [-62.5, 45.25], [-62.25, 45.15], [-62.18000000000001, 45.18], [-62.02999999999997, 45.53], [-61.5, 45.75], [-61.25, 45.65], [-61.18000000000001, 45.68], [-61.02999999999997, 46.03], [-60.5, 46.25], [-60.25, 46.15], [-60.18000000000001, 46.18], [-60.02999999999997, 46.53], [-59.68000000000001, 46.68], [-59.52999999999997, 47.03], [-59.0, 47.25], [-58.47000000000003, 47.03], [-58.25, 46.5], [-58.35000000000002, 46.25], [-58.25, 46.0], [-58.35000000000002, 45.75], [-58.25, 45.5], [-58.35000000000002, 45.25], [-58.25, 45.0], [-58.47000000000003, 44.47], [-59.0, 44.25], [-59.25, 44.35], [-59.5, 44.25], [-59.75, 44.35], [-59.81999999999999, 44.32], [-59.97000000000003, 43.97], [-60.31999999999999, 43.82], [-60.47000000000003, 43.47], [-61.0, 43.25], [-61.25, 43.35], [-61.5, 43.25], [-61.75, 43.35], [-62.0, 43.25], [-62.25, 43.35], [-62.5, 43.25], [-63.02999999999997, 43.47], [-63.18000000000001, 43.82], [-63.25, 43.85], [-63.31999999999999, 43.82], [-63.47000000000003, 43.47], [-63.81999999999999, 43.32], [-63.97000000000003, 42.97], [-64.5, 42.75], [-64.75, 42.85], [-65.0, 42.75]]]]}, "2025-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.0, 42.75], [-65.52999999999997, 42.97], [-65.75, 43.5], [-65.52999999999997, 44.03], [-65.0, 44.25], [-64.75, 44.15], [-64.68, 44.18], [-64.52999999999997, 44.53], [-64.18, 44.68], [-64.02999999999997, 45.03], [-63.5, 45.25], [-63.25, 45.15], [-63.0, 45.25], 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43.47], [-63.81999999999999, 43.32], [-63.97000000000003, 42.97], [-64.5, 42.75], [-64.75, 42.85], [-65.0, 42.75]]]]}, "2025-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.0, 42.75], [-65.52999999999997, 42.97], [-65.75, 43.5], [-65.52999999999997, 44.03], [-65.0, 44.25], [-64.75, 44.15], [-64.68, 44.18], [-64.52999999999997, 44.53], [-64.18, 44.68], [-64.02999999999997, 45.03], [-63.5, 45.25], [-63.25, 45.15], [-63.0, 45.25], [-62.75, 45.15], [-62.5, 45.25], [-62.25, 45.15], [-62.18000000000001, 45.18], [-62.02999999999997, 45.53], [-61.5, 45.75], [-61.25, 45.65], [-61.18000000000001, 45.68], [-61.02999999999997, 46.03], [-60.5, 46.25], [-60.25, 46.15], [-60.18000000000001, 46.18], [-60.02999999999997, 46.53], [-59.68000000000001, 46.68], [-59.52999999999997, 47.03], [-59.0, 47.25], [-58.47000000000003, 47.03], [-58.25, 46.5], [-58.35000000000002, 46.25], [-58.25, 46.0], [-58.35000000000002, 45.75], [-58.25, 45.5], [-58.35000000000002, 45.25], [-58.25, 45.0], [-58.47000000000003, 44.47], [-59.0, 44.25], [-59.25, 44.35], [-59.5, 44.25], [-59.75, 44.35], [-59.81999999999999, 44.32], [-59.97000000000003, 43.97], [-60.31999999999999, 43.82], [-60.47000000000003, 43.47], [-61.0, 43.25], [-61.25, 43.35], [-61.5, 43.25], [-61.75, 43.35], [-62.0, 43.25], [-62.25, 43.35], [-62.5, 43.25], [-63.02999999999997, 43.47], [-63.18000000000001, 43.82], [-63.25, 43.85], [-63.31999999999999, 43.82], [-63.47000000000003, 43.47], [-63.81999999999999, 43.32], [-63.97000000000003, 42.97], [-64.5, 42.75], [-64.75, 42.85], [-65.0, 42.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.581128779729511}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.27414387177955}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.916721080261937, 12.205120246793001, 12.017474158016284]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.03982823689779, 14.548252360026083, 14.181723531087243]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.303390137609593, 2.4510073855471157, 2.0680340921819416]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.0923922718122867, 3.581128779729511, 2.582137520335607]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8504660697532973, 1.942007029254855, 1.606409466620329]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.56603563470462, 2.7612980864442505, 1.9641452454932407]}}