{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:32:14.628012", "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-Aug-28_to_2022-Aug-30_279.5_52.0"}, "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": 2022080002817}, "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": "August 28 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 30 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": 151779.71136279238}, "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": ["Hudson Bay"]}, "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": 52.0}, "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": 279.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "279.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 278.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 285.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.75, 52.5], [-81.53, 53.03], [-81.18, 53.18], [-81.15, 53.25], [-81.25, 53.5], [-81.03, 54.03], [-80.68, 54.18], [-80.65, 54.25], [-80.75, 54.5], [-80.53, 55.03], [-80.0, 55.25], [-79.75, 55.15], [-79.5, 55.25], [-79.25, 55.15], [-79.18, 55.18], [-79.03, 55.53], [-78.5, 55.75], [-78.25, 55.65], [-78.0, 55.75], [-77.75, 55.65], [-77.68, 55.68], [-77.53, 56.03], [-77.0, 56.25], [-76.47, 56.03], [-76.32, 55.68], [-76.25, 55.65], [-76.0, 55.75], [-75.47, 55.53], [-75.32, 55.18], [-74.97, 55.03], [-74.82, 54.68], [-74.47, 54.53], [-74.25, 54.0], [-74.35, 53.75], [-74.25, 53.5], [-74.35, 53.25], [-74.25, 53.0], [-74.47, 52.47], [-74.82, 52.32], [-74.97, 51.97], [-75.5, 51.75], [-75.75, 51.85], [-75.82, 51.82], [-75.97, 51.47], [-76.5, 51.25], [-76.75, 51.35], [-76.82, 51.32], [-76.97, 50.97], [-77.5, 50.75], [-77.75, 50.85], [-78.0, 50.75], [-78.25, 50.85], [-78.32, 50.82], [-78.47, 50.47], [-79.0, 50.25], [-79.25, 50.35], [-79.5, 50.25], [-80.03, 50.47], [-80.18, 50.82], [-80.25, 50.85], [-80.5, 50.75], [-81.03, 50.97], [-81.25, 51.5], [-81.15, 51.75], [-81.18, 51.82], [-81.53, 51.97], [-81.75, 52.5]]]]}, "2022-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.75, 52.5], [-81.53, 53.03], [-81.18, 53.18], [-81.15, 53.25], [-81.25, 53.5], [-81.03, 54.03], [-80.68, 54.18], [-80.65, 54.25], [-80.75, 54.5], [-80.53, 55.03], [-80.0, 55.25], [-79.75, 55.15], [-79.5, 55.25], [-79.25, 55.15], [-79.18, 55.18], [-79.03, 55.53], [-78.5, 55.75], [-78.25, 55.65], [-78.0, 55.75], [-77.75, 55.65], [-77.68, 55.68], [-77.53, 56.03], [-77.0, 56.25], [-76.47, 56.03], [-76.32, 55.68], [-76.25, 55.65], [-76.0, 55.75], [-75.47, 55.53], [-75.32, 55.18], [-74.97, 55.03], [-74.82, 54.68], [-74.47, 54.53], [-74.25, 54.0], [-74.35, 53.75], [-74.25, 53.5], [-74.35, 53.25], [-74.25, 53.0], [-74.47, 52.47], [-74.82, 52.32], [-74.97, 51.97], [-75.5, 51.75], [-75.75, 51.85], [-75.82, 51.82], [-75.97, 51.47], [-76.5, 51.25], [-76.75, 51.35], [-76.82, 51.32], [-76.97, 50.97], [-77.5, 50.75], [-77.75, 50.85], [-78.0, 50.75], [-78.25, 50.85], [-78.32, 50.82], [-78.47, 50.47], [-79.0, 50.25], [-79.25, 50.35], [-79.5, 50.25], [-80.03, 50.47], [-80.18, 50.82], [-80.25, 50.85], [-80.5, 50.75], [-81.03, 50.97], [-81.25, 51.5], [-81.15, 51.75], [-81.18, 51.82], [-81.53, 51.97], [-81.75, 52.5]]]]}, "2022-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.75, 52.5], [-81.53, 53.03], [-81.18, 53.18], [-81.15, 53.25], [-81.25, 53.5], [-81.03, 54.03], [-80.68, 54.18], [-80.65, 54.25], [-80.75, 54.5], [-80.53, 55.03], [-80.0, 55.25], [-79.75, 55.15], [-79.5, 55.25], [-79.25, 55.15], [-79.18, 55.18], [-79.03, 55.53], [-78.5, 55.75], [-78.25, 55.65], [-78.0, 55.75], [-77.75, 55.65], [-77.68, 55.68], [-77.53, 56.03], [-77.0, 56.25], [-76.47, 56.03], [-76.32, 55.68], [-76.25, 55.65], [-76.0, 55.75], [-75.47, 55.53], [-75.32, 55.18], [-74.97, 55.03], [-74.82, 54.68], [-74.47, 54.53], [-74.25, 54.0], [-74.35, 53.75], [-74.25, 53.5], [-74.35, 53.25], [-74.25, 53.0], [-74.47, 52.47], [-74.82, 52.32], [-74.97, 51.97], [-75.5, 51.75], [-75.75, 51.85], [-75.82, 51.82], [-75.97, 51.47], [-76.5, 51.25], [-76.75, 51.35], [-76.82, 51.32], [-76.97, 50.97], [-77.5, 50.75], [-77.75, 50.85], [-78.0, 50.75], [-78.25, 50.85], [-78.32, 50.82], [-78.47, 50.47], [-79.0, 50.25], [-79.25, 50.35], [-79.5, 50.25], [-80.03, 50.47], [-80.18, 50.82], [-80.25, 50.85], [-80.5, 50.75], [-81.03, 50.97], [-81.25, 51.5], [-81.15, 51.75], [-81.18, 51.82], [-81.53, 51.97], [-81.75, 52.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.602931670359965}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.165495404796376}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.560389700143105, 18.559854044711813, 18.212987023880885]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.29620067754246, 22.29137593871934, 21.022717399661815]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.447415115496658, 6.651167866253265, 6.397903232639201]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.056806823861962, 8.602931670359965, 8.150427377339327]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.69189330746605, 2.0212560314873675, 1.9399164144778638]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.31558636756022, 2.2999343870049764, 2.349065281462217]}}