{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-28 16:19:55.649213", "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": "2026-May-10_to_2026-May-12_303.5_54.0"}, "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": 2026050001296}, "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": "May 10 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 12 2026"}, "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": 74742.41387054292}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": ["Labrador Sea"]}, "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": 54.0}, "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": 303.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "303.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 299.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 304.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 52.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.03, 56.53], [-60.5, 56.75], [-60.25, 56.65], [-60.0, 56.75], [-59.75, 56.65], [-59.5, 56.75], [-59.25, 56.65], [-59.0, 56.75], [-58.47, 56.53], [-58.32, 56.18], [-58.25, 56.15], [-58.0, 56.25], [-57.75, 56.15], [-57.5, 56.25], [-57.25, 56.15], [-57.18, 56.18], [-57.15, 56.25], [-57.25, 56.5], [-57.03, 57.03], [-56.5, 57.25], [-56.25, 57.15], [-56.0, 57.25], [-55.47, 57.03], [-55.25, 56.5], [-55.35, 56.25], [-55.25, 56.0], [-55.47, 55.47], [-56.0, 55.25], [-55.47, 55.03], [-55.25, 54.5], [-55.35, 54.25], [-55.25, 54.0], [-55.35, 53.75], [-55.32, 53.68], [-54.97, 53.53], [-54.75, 53.0], [-54.97, 52.47], [-55.5, 52.25], [-56.03, 52.47], [-56.18, 52.82], [-56.25, 52.85], [-56.5, 52.75], [-56.75, 52.85], [-57.0, 52.75], [-57.25, 52.85], [-57.5, 52.75], [-58.03, 52.97], [-58.18, 53.32], [-58.25, 53.35], [-58.5, 53.25], [-58.75, 53.35], [-59.0, 53.25], [-59.25, 53.35], [-59.5, 53.25], [-60.03, 53.47], [-60.25, 54.0], [-60.04, 54.5], [-60.18, 54.82], [-60.25, 54.85], [-60.5, 54.75], [-61.03, 54.97], [-61.25, 55.5], [-61.15, 55.75], [-61.25, 56.0], [-61.03, 56.53]], [[-56.25, 55.35], [-56.32, 55.32], [-56.35, 55.25], [-56.32, 55.18], [-56.25, 55.15], [-56.0, 55.25], [-56.25, 55.35]]]]}, "2026-05-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.03, 56.53], [-60.5, 56.75], [-60.25, 56.65], [-60.0, 56.75], [-59.75, 56.65], [-59.5, 56.75], [-59.25, 56.65], [-59.0, 56.75], [-58.47, 56.53], [-58.32, 56.18], [-58.25, 56.15], [-58.0, 56.25], [-57.75, 56.15], [-57.5, 56.25], [-57.25, 56.15], [-57.18, 56.18], [-57.15, 56.25], [-57.25, 56.5], [-57.03, 57.03], [-56.5, 57.25], [-56.25, 57.15], [-56.0, 57.25], [-55.47, 57.03], [-55.25, 56.5], [-55.35, 56.25], [-55.25, 56.0], [-55.47, 55.47], [-56.0, 55.25], [-55.47, 55.03], [-55.25, 54.5], [-55.35, 54.25], [-55.25, 54.0], [-55.35, 53.75], [-55.32, 53.68], [-54.97, 53.53], [-54.75, 53.0], [-54.97, 52.47], [-55.5, 52.25], [-56.03, 52.47], [-56.18, 52.82], [-56.25, 52.85], [-56.5, 52.75], [-56.75, 52.85], [-57.0, 52.75], [-57.25, 52.85], [-57.5, 52.75], [-58.03, 52.97], [-58.18, 53.32], [-58.25, 53.35], [-58.5, 53.25], [-58.75, 53.35], [-59.0, 53.25], [-59.25, 53.35], [-59.5, 53.25], [-60.03, 53.47], [-60.25, 54.0], [-60.04, 54.5], [-60.18, 54.82], [-60.25, 54.85], [-60.5, 54.75], [-61.03, 54.97], [-61.25, 55.5], [-61.15, 55.75], [-61.25, 56.0], [-61.03, 56.53]], [[-56.25, 55.35], [-56.32, 55.32], [-56.35, 55.25], [-56.32, 55.18], [-56.25, 55.15], [-56.0, 55.25], [-56.25, 55.35]]]]}, "2026-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.03, 56.53], [-60.5, 56.75], [-60.25, 56.65], [-60.0, 56.75], [-59.75, 56.65], [-59.5, 56.75], [-59.25, 56.65], [-59.0, 56.75], [-58.47, 56.53], [-58.32, 56.18], [-58.25, 56.15], [-58.0, 56.25], [-57.75, 56.15], [-57.5, 56.25], [-57.25, 56.15], [-57.18, 56.18], [-57.15, 56.25], [-57.25, 56.5], [-57.03, 57.03], [-56.5, 57.25], [-56.25, 57.15], [-56.0, 57.25], [-55.47, 57.03], [-55.25, 56.5], [-55.35, 56.25], [-55.25, 56.0], [-55.47, 55.47], [-56.0, 55.25], [-55.47, 55.03], [-55.25, 54.5], [-55.35, 54.25], [-55.25, 54.0], [-55.35, 53.75], [-55.32, 53.68], [-54.97, 53.53], [-54.75, 53.0], [-54.97, 52.47], [-55.5, 52.25], [-56.03, 52.47], [-56.18, 52.82], [-56.25, 52.85], [-56.5, 52.75], [-56.75, 52.85], [-57.0, 52.75], [-57.25, 52.85], [-57.5, 52.75], [-58.03, 52.97], [-58.18, 53.32], [-58.25, 53.35], [-58.5, 53.25], [-58.75, 53.35], [-59.0, 53.25], [-59.25, 53.35], [-59.5, 53.25], [-60.03, 53.47], [-60.25, 54.0], [-60.04, 54.5], [-60.18, 54.82], [-60.25, 54.85], [-60.5, 54.75], [-61.03, 54.97], [-61.25, 55.5], [-61.15, 55.75], [-61.25, 56.0], [-61.03, 56.53]], [[-56.25, 55.35], [-56.32, 55.32], [-56.35, 55.25], [-56.32, 55.18], [-56.25, 55.15], [-56.0, 55.25], [-56.25, 55.35]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.525896202559238}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.36285076943381}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [4.932786196754137, 5.68244578043624, 4.268594602554629]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.37702331542971, 9.093293762207054, 8.195174153645837]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.413223821883701, 5.087298457011095, 3.5880300294066387]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.2819089443459575, 7.525896202559238, 6.022502463964315]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.627606977205428, 2.0139589468238026, 1.3889152217846834]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2633449246939623, 2.604820560630179, 1.8244950649130955]}}