{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:48.167905", "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": "2022-Oct-03_to_2022-Oct-05_274.0_51.0"}, "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": 2022100001538}, "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": "October 03 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 05 2022"}, "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": 56431.58089900934}, "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": 51.0}, "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": 274.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "274.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 269.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 275.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 49.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-91.25, 51.5], [-91.03, 52.03], [-90.5, 52.25], [-90.25, 52.15], [-90.0, 52.25], [-89.75, 52.15], [-89.5, 52.25], [-89.25, 52.15], [-89.0, 52.25], [-88.75, 52.15], [-88.5, 52.25], [-88.25, 52.15], [-88.0, 52.25], [-87.75, 52.15], [-87.5, 52.25], [-87.25, 52.15], [-87.0, 52.25], [-86.75, 52.15], [-86.5, 52.25], [-86.25, 52.15], [-86.0, 52.25], [-85.75, 52.15], [-85.5, 52.25], [-84.97, 52.03], [-84.82, 51.68], [-84.47, 51.53], [-84.25, 51.0], [-84.47, 50.47], [-84.82, 50.32], [-84.97, 49.97], [-85.5, 49.75], [-85.75, 49.85], [-86.0, 49.75], [-86.25, 49.85], [-86.5, 49.75], [-87.03, 49.97], [-87.18, 50.32], [-87.25, 50.35], [-87.5, 50.25], [-87.75, 50.35], [-88.0, 50.25], [-88.25, 50.35], [-88.32, 50.32], [-88.47, 49.97], [-88.82, 49.82], [-88.85, 49.75], [-88.75, 49.5], [-88.97, 48.97], [-89.5, 48.75], [-90.03, 48.97], [-90.18, 49.32], [-90.53, 49.47], [-90.75, 50.0], [-90.53, 50.53], [-90.18, 50.68], [-90.15, 50.75], [-90.18, 50.82], [-90.25, 50.85], [-90.5, 50.75], [-91.03, 50.97], [-91.25, 51.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.North-America", "C.North-America", "E.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.5, 50.75], [-91.02999999999997, 50.97], [-91.25, 51.5], [-91.02999999999997, 52.03], [-90.5, 52.25], [-90.25, 52.15], [-90.0, 52.25], [-89.75, 52.15], [-89.5, 52.25], [-89.25, 52.15], [-89.0, 52.25], [-88.75, 52.15], [-88.5, 52.25], [-88.25, 52.15], [-88.0, 52.25], [-87.75, 52.15], [-87.5, 52.25], [-87.25, 52.15], [-87.0, 52.25], [-86.75, 52.15], [-86.5, 52.25], [-86.25, 52.15], [-86.0, 52.25], [-85.75, 52.15], [-85.5, 52.25], [-84.97000000000003, 52.03], [-84.82, 51.68], [-84.47000000000003, 51.53], [-84.25, 51.0], [-84.47000000000003, 50.47], [-84.82, 50.32], [-84.97000000000003, 49.97], [-85.5, 49.75], [-85.75, 49.85], [-86.0, 49.75], [-86.25, 49.85], [-86.5, 49.75], [-87.02999999999997, 49.97], [-87.18, 50.32], [-87.25, 50.35], [-87.5, 50.25], [-87.75, 50.35], [-88.0, 50.25], [-88.25, 50.35], [-88.32, 50.32], [-88.47000000000003, 49.97], [-88.82, 49.82], [-88.85000000000002, 49.75], [-88.75, 49.5], [-88.97000000000003, 48.97], [-89.5, 48.75], [-90.02999999999997, 48.97], [-90.18, 49.32], [-90.52999999999997, 49.47], [-90.75, 50.0], [-90.52999999999997, 50.53], [-90.18, 50.68], [-90.14999999999998, 50.75], [-90.18, 50.82], [-90.25, 50.85], [-90.5, 50.75]]]]}, "2022-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.5, 50.75], [-91.02999999999997, 50.97], [-91.25, 51.5], [-91.02999999999997, 52.03], [-90.5, 52.25], [-90.25, 52.15], [-90.0, 52.25], [-89.75, 52.15], [-89.5, 52.25], [-89.25, 52.15], [-89.0, 52.25], [-88.75, 52.15], [-88.5, 52.25], [-88.25, 52.15], [-88.0, 52.25], [-87.75, 52.15], [-87.5, 52.25], [-87.25, 52.15], [-87.0, 52.25], [-86.75, 52.15], [-86.5, 52.25], [-86.25, 52.15], [-86.0, 52.25], [-85.75, 52.15], [-85.5, 52.25], 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[-90.5, 50.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.3445280642689}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.035201098473624}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.616080348784408, 12.920845976638077, 12.902579936044106]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.128063564857314, 14.263568823642402, 14.38557717820703]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.648500089935806, 7.163730639136835, 7.293372566348233]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.328140735586032, 8.3445280642689, 8.22790444245436]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5837958275964983, 1.64302973093394, 1.6009600261084282]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.690556453664809, 1.8107223945694033, 1.7359522640878582]}}