{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:12.836994", "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-Sep-24_to_2024-Sep-26_254.5_53.0"}, "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": 2024090002146}, "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": "September 24 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 26 2024"}, "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": 130606.0162913909}, "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": 53.0}, "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": 254.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "254.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 246.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 255.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-114.03, 52.53], [-113.68, 52.68], [-113.53, 53.03], [-113.0, 53.25], [-112.75, 53.15], [-112.5, 53.25], [-112.25, 53.15], [-112.18, 53.18], [-112.03, 53.53], [-111.5, 53.75], [-111.25, 53.65], [-111.18, 53.68], [-111.03, 54.03], [-110.5, 54.25], [-110.25, 54.15], [-110.18, 54.18], [-110.03, 54.53], [-109.5, 54.75], [-109.25, 54.65], [-109.18, 54.68], [-109.03, 55.03], [-108.62, 55.2], [-108.68, 55.32], [-108.75, 55.35], [-109.0, 55.25], [-109.53, 55.47], [-109.75, 56.0], [-109.53, 56.53], [-109.0, 56.75], [-108.75, 56.65], [-108.5, 56.75], [-108.25, 56.65], [-108.0, 56.75], [-107.47, 56.53], [-107.32, 56.18], [-107.25, 56.15], [-107.0, 56.25], [-106.75, 56.15], [-106.5, 56.25], [-105.97, 56.03], [-105.75, 55.5], [-105.87, 55.2], [-105.75, 55.15], [-105.5, 55.25], [-104.97, 55.03], [-104.82, 54.68], [-104.47, 54.53], [-104.25, 54.0], [-104.35, 53.75], [-104.25, 53.5], [-104.47, 52.97], [-104.82, 52.82], [-104.97, 52.47], [-105.5, 52.25], [-105.75, 52.35], [-106.0, 52.25], [-106.25, 52.35], [-106.5, 52.25], [-106.75, 52.35], [-107.0, 52.25], [-107.25, 52.35], [-107.5, 52.25], [-107.75, 52.35], [-108.0, 52.25], [-108.25, 52.35], [-108.32, 52.32], [-108.35, 52.25], [-108.25, 52.0], [-108.47, 51.47], [-109.0, 51.25], [-109.25, 51.35], [-109.5, 51.25], [-109.75, 51.35], [-110.0, 51.25], [-110.25, 51.35], [-110.5, 51.25], [-110.75, 51.35], [-111.0, 51.25], [-111.25, 51.35], [-111.5, 51.25], [-111.75, 51.35], [-112.0, 51.25], [-112.25, 51.35], [-112.32, 51.32], [-112.47, 50.97], [-113.0, 50.75], [-113.53, 50.97], [-113.68, 51.32], [-114.03, 51.47], [-114.25, 52.0], [-114.03, 52.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.North-America", "N.E.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.03, 51.47], [-114.25, 52.0], [-114.03, 52.53], [-113.68, 52.68], [-113.53, 53.03], [-113.0, 53.25], [-112.75, 53.15], [-112.5, 53.25], [-112.25, 53.15], [-112.18, 53.18], [-112.03, 53.53], [-111.5, 53.75], [-111.25, 53.65], [-111.18, 53.68], [-111.03, 54.03], [-110.5, 54.25], [-110.25, 54.15], [-110.18, 54.18], [-110.03, 54.53], [-109.5, 54.75], [-109.25, 54.65], [-109.18, 54.68], [-109.03, 55.03], [-108.62, 55.2], [-108.68, 55.32], [-108.75, 55.35], [-109.0, 55.25], [-109.53, 55.47], [-109.75, 56.0], [-109.53, 56.53], [-109.0, 56.75], [-108.75, 56.65], [-108.5, 56.75], [-108.25, 56.65], [-108.0, 56.75], [-107.47, 56.53], [-107.32, 56.18], [-107.25, 56.15], [-107.0, 56.25], [-106.75, 56.15], [-106.5, 56.25], [-105.97, 56.03], [-105.75, 55.5], [-105.87, 55.2], [-105.75, 55.15], [-105.5, 55.25], [-104.97, 55.03], [-104.82, 54.68], [-104.47, 54.53], [-104.25, 54.0], [-104.35, 53.75], [-104.25, 53.5], [-104.47, 52.97], [-104.82, 52.82], [-104.97, 52.47], [-105.5, 52.25], [-105.75, 52.35], [-106.0, 52.25], [-106.25, 52.35], [-106.5, 52.25], [-106.75, 52.35], [-107.0, 52.25], [-107.25, 52.35], [-107.5, 52.25], [-107.75, 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51.35], [-112.0, 51.25], [-112.25, 51.35], [-112.32, 51.32], [-112.47, 50.97], [-113.0, 50.75], [-113.53, 50.97], [-113.68, 51.32], [-114.03, 51.47]]]]}, "2024-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.03, 51.47], [-114.25, 52.0], [-114.03, 52.53], [-113.68, 52.68], [-113.53, 53.03], [-113.0, 53.25], [-112.75, 53.15], [-112.5, 53.25], [-112.25, 53.15], [-112.18, 53.18], [-112.03, 53.53], [-111.5, 53.75], [-111.25, 53.65], [-111.18, 53.68], [-111.03, 54.03], [-110.5, 54.25], [-110.25, 54.15], [-110.18, 54.18], [-110.03, 54.53], [-109.5, 54.75], [-109.25, 54.65], [-109.18, 54.68], [-109.03, 55.03], [-108.62, 55.2], [-108.68, 55.32], [-108.75, 55.35], [-109.0, 55.25], [-109.53, 55.47], [-109.75, 56.0], [-109.53, 56.53], [-109.0, 56.75], [-108.75, 56.65], [-108.5, 56.75], [-108.25, 56.65], [-108.0, 56.75], [-107.47, 56.53], [-107.32, 56.18], [-107.25, 56.15], [-107.0, 56.25], [-106.75, 56.15], [-106.5, 56.25], [-105.97, 56.03], [-105.75, 55.5], [-105.87, 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{"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.188883947443141}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.869090195776778, 17.87202491581155, 16.68463525548225]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.084958648681663, 20.43843231201174, 20.07015508015951]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.145141255464731, 8.184561112819889, 7.236949474044807]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.759983111226575, 10.134756613257196, 11.014325241768972]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4867293786092317, 2.044981298306626, 1.8216722520797994]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6327758056854036, 2.5389765359904835, 2.621422445085763]}}