{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:10.524205", "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-Mar-27_to_2022-Mar-31_300.0_52.5"}, "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": 2022030002700}, "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 27 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 31 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 61170.03413073426}, "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": 52.5}, "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": 300.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "300.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 301.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-62.68, 52.18], [-62.53, 52.53], [-62.0, 52.75], [-61.75, 52.65], [-61.68, 52.68], [-61.53, 53.03], [-61.0, 53.25], [-60.75, 53.15], [-60.68, 53.18], [-60.53, 53.53], [-60.0, 53.75], [-59.5, 53.54], [-59.0, 53.75], [-58.75, 53.65], [-58.5, 53.75], [-57.97, 53.53], [-57.75, 53.0], [-57.96, 52.5], [-57.75, 52.0], [-57.85, 51.75], [-57.75, 51.5], [-57.97, 50.97], [-58.5, 50.75], [-58.75, 50.85], [-59.0, 50.75], [-59.25, 50.85], [-59.32, 50.82], [-59.47, 50.47], [-60.0, 50.25], [-60.25, 50.35], [-60.5, 50.25], [-60.75, 50.35], [-61.0, 50.25], [-61.25, 50.35], [-61.5, 50.25], [-61.75, 50.35], [-62.0, 50.25], [-62.25, 50.35], [-62.5, 50.25], [-62.75, 50.35], [-63.0, 50.25], [-63.25, 50.35], [-63.5, 50.25], [-64.03, 50.47], [-64.25, 51.0], [-64.03, 51.53], [-63.68, 51.68], [-63.53, 52.03], [-63.0, 52.25], [-62.75, 52.15], [-62.68, 52.18]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": 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entire duration", "value": 8.20634763233096}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.088742532818866}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-0.11192586229719836, 0.5699536060609489, 0.3979734969484525, 0.6189427134361267, 0.9104404988634087]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [0.5468098600185272, 1.1774432725468387, 0.9729459277011756, 1.9913412942192394, 1.6996557057623818]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.311413769688718, 6.702541072963323, 6.00113587839463, 5.791030839302964, 5.610655841685669]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.393069773455579, 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