{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:53.494587", "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-May-02_to_2024-May-05_229.5_55.5"}, "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": 2024050000976}, "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 02 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 05 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 65018.53683585445}, "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", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.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": ["The Coastal Waters of Southeast Alaska and British Columbia"]}, "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": 55.5}, "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": 229.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "229.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 226.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 233.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 53.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 57.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-127.53, 54.97], [-127.75, 55.5], [-127.53, 56.03], [-127.0, 56.25], [-126.47, 56.03], [-126.25, 55.5], [-126.47, 54.97], [-127.0, 54.75], [-127.53, 54.97]]], [[[-131.25, 55.5], [-131.03, 56.03], [-130.5, 56.25], [-130.25, 56.15], [-130.0, 56.25], [-129.7, 56.13], [-129.53, 56.53], [-129.0, 56.75], [-128.47, 56.53], [-128.25, 56.0], [-128.47, 55.47], [-129.0, 55.25], [-129.3, 55.38], [-129.47, 54.97], [-130.0, 54.75], [-130.25, 54.85], [-130.5, 54.75], [-131.03, 54.97], [-131.25, 55.5]]]]}, "2024-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-134.03, 56.47], [-134.25, 57.0], [-134.03, 57.53], [-133.5, 57.75], [-133.25, 57.65], [-133.0, 57.75], [-132.47, 57.53], [-132.32, 57.18], [-132.25, 57.15], [-132.0, 57.25], [-131.47, 57.03], [-131.32, 56.68], [-131.25, 56.65], [-131.0, 56.75], [-130.47, 56.53], [-130.32, 56.18], [-130.25, 56.15], [-130.18, 56.18], [-130.03, 56.53], [-129.5, 56.75], [-129.25, 56.65], [-129.0, 56.75], [-128.47, 56.53], [-128.32, 56.18], [-128.25, 56.15], [-128.0, 56.25], [-127.5, 56.04], [-127.0, 56.25], [-126.75, 56.15], [-126.5, 56.25], [-125.97, 56.03], [-125.75, 55.5], [-125.97, 54.97], [-126.32, 54.82], [-126.35, 54.75], [-126.25, 54.5], [-126.47, 53.97], [-127.0, 53.75], [-127.25, 53.85], [-127.5, 53.75], [-128.03, 53.97], [-128.18, 54.32], [-128.25, 54.35], [-128.32, 54.32], [-128.35, 54.25], [-128.25, 54.0], [-128.47, 53.47], [-129.0, 53.25], [-129.25, 53.35], [-129.5, 53.25], [-129.75, 53.35], [-130.0, 53.25], [-130.53, 53.47], [-130.75, 54.0], [-130.65, 54.25], [-130.68, 54.32], [-131.03, 54.47], [-131.18, 54.82], [-131.25, 54.85], [-131.5, 54.75], [-132.0, 54.96], [-132.5, 54.75], [-133.03, 54.97], [-133.25, 55.5], [-133.15, 55.75], [-133.25, 56.0], [-133.15, 56.25], [-133.18, 56.32], [-133.25, 56.35], [-133.5, 56.25], [-134.03, 56.47]]]]}, "2024-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-134.03, 56.47], [-134.25, 57.0], [-134.03, 57.53], [-133.5, 57.75], [-133.25, 57.65], [-133.0, 57.75], [-132.47, 57.53], [-132.32, 57.18], [-132.25, 57.15], [-132.0, 57.25], [-131.47, 57.03], [-131.32, 56.68], [-131.25, 56.65], [-131.0, 56.75], [-130.47, 56.53], [-130.32, 56.18], [-130.25, 56.15], [-130.18, 56.18], [-130.03, 56.53], [-129.5, 56.75], [-129.25, 56.65], [-129.0, 56.75], [-128.47, 56.53], [-128.32, 56.18], [-128.25, 56.15], [-128.0, 56.25], [-127.5, 56.04], [-127.0, 56.25], [-126.75, 56.15], [-126.5, 56.25], [-125.97, 56.03], [-125.75, 55.5], [-125.97, 54.97], [-126.32, 54.82], [-126.35, 54.75], [-126.25, 54.5], [-126.47, 53.97], [-127.0, 53.75], [-127.25, 53.85], [-127.5, 53.75], [-128.03, 53.97], [-128.18, 54.32], [-128.25, 54.35], [-128.32, 54.32], [-128.35, 54.25], [-128.25, 54.0], [-128.47, 53.47], [-129.0, 53.25], [-129.25, 53.35], [-129.5, 53.25], [-129.75, 53.35], [-130.0, 53.25], [-130.53, 53.47], [-130.75, 54.0], [-130.65, 54.25], [-130.68, 54.32], [-131.03, 54.47], [-131.18, 54.82], [-131.25, 54.85], [-131.5, 54.75], [-132.0, 54.96], [-132.5, 54.75], [-133.03, 54.97], [-133.25, 55.5], [-133.15, 55.75], 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3.0290115550655963, 3.6810580223857157, 2.728479852603193]}}