{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:08.559104", "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-Mar-25_to_2024-Mar-27_247.0_70.0"}, "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": 2024030001913}, "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": "March 25 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 27 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": 107933.97261324612}, "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": 70.0}, "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": 247.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "247.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 242.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 253.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 69.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 72.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-118.25, 71.0], [-118.03, 71.53], [-117.5, 71.75], [-117.25, 71.65], [-117.0, 71.75], [-116.75, 71.65], [-116.68, 71.68], [-116.53, 72.03], [-116.18, 72.18], [-116.03, 72.53], [-115.5, 72.75], [-115.25, 72.65], [-115.0, 72.75], [-114.75, 72.65], [-114.5, 72.75], [-114.25, 72.65], [-114.0, 72.75], [-113.75, 72.65], [-113.5, 72.75], [-113.25, 72.65], [-113.0, 72.75], [-112.47, 72.53], [-112.32, 72.18], [-112.25, 72.15], [-112.0, 72.25], [-111.75, 72.15], [-111.5, 72.25], [-111.25, 72.15], [-111.0, 72.25], [-110.75, 72.15], [-110.5, 72.25], [-109.97, 72.03], [-109.82, 71.68], [-109.47, 71.53], [-109.32, 71.18], [-109.25, 71.15], [-109.0, 71.25], [-108.75, 71.15], [-108.5, 71.25], [-108.25, 71.15], [-108.0, 71.25], [-107.75, 71.15], [-107.5, 71.25], [-107.25, 71.15], [-107.0, 71.25], [-106.47, 71.03], [-106.25, 70.5], [-106.47, 69.97], [-106.82, 69.82], [-106.85, 69.75], [-106.75, 69.5], [-106.97, 68.97], [-107.5, 68.75], [-107.75, 68.85], [-108.0, 68.75], [-108.25, 68.85], [-108.5, 68.75], [-108.75, 68.85], [-108.82, 68.82], [-108.97, 68.47], [-109.5, 68.25], [-109.75, 68.35], [-110.0, 68.25], [-110.25, 68.35], [-110.5, 68.25], [-110.75, 68.35], [-111.0, 68.25], [-111.25, 68.35], [-111.5, 68.25], [-111.75, 68.35], [-112.0, 68.25], [-112.25, 68.35], [-112.5, 68.25], [-112.75, 68.35], [-113.0, 68.25], [-113.53, 68.47], [-113.68, 68.82], [-113.75, 68.85], [-114.0, 68.75], [-114.25, 68.85], [-114.5, 68.75], [-114.75, 68.85], [-115.0, 68.75], [-115.25, 68.85], [-115.5, 68.75], [-115.75, 68.85], [-116.0, 68.75], [-116.25, 68.85], [-116.5, 68.75], [-117.03, 68.97], [-117.18, 69.32], [-117.25, 69.35], [-117.5, 69.25], [-118.03, 69.47], [-118.25, 70.0], [-118.15, 70.25], [-118.25, 70.5], [-118.15, 70.75], [-118.25, 71.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.25, 70.5], [-118.15, 70.75], 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-12.477155495463137]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [11.47493893037419, 12.777093650525254, 9.79574750202723]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [14.435920863224311, 14.308753929029734, 11.588995914768702]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8619999098723912, 2.0801611753189935, 1.612847802674844]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2845432043004914, 2.3042906584178593, 1.8003996430973332]}}