{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:13.597947", "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": "2013-Apr-27_to_2013-May-01_271.5_45.0"}, "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": 2013040002659}, "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": "April 27 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 01 2013"}, "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": 78870.72304713976}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "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": []}, "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": 45.0}, "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": 271.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 266.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 272.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.03, 45.53], [-90.5, 45.75], [-90.25, 45.65], [-90.0, 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[-88.5, 44.25], [-88.75, 44.35], [-89.0, 44.25], [-89.25, 44.35], [-89.5, 44.25], [-89.75, 44.35], [-89.82, 44.32], [-89.97, 43.97], [-90.5, 43.75], [-91.0, 43.96], [-91.5, 43.75], [-92.0, 43.96], [-92.5, 43.75], [-92.75, 43.85], [-92.82, 43.82], [-92.97, 43.47], [-93.5, 43.25], [-94.03, 43.47], [-94.25, 44.0], [-94.03, 44.53], [-93.68, 44.68], [-93.53, 45.03], [-93.18, 45.18]]]]}, "2013-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.18, 45.18], [-93.04, 45.5], [-93.25, 46.0], [-93.03, 46.53], [-92.5, 46.75], [-92.25, 46.65], [-92.0, 46.75], [-91.47, 46.53], [-91.32, 46.18], [-91.25, 46.15], [-91.0, 46.25], [-90.75, 46.15], [-90.5, 46.25], [-90.25, 46.15], [-90.0, 46.25], [-89.75, 46.15], [-89.5, 46.25], [-89.25, 46.15], [-89.0, 46.25], [-88.75, 46.15], [-88.68, 46.18], [-88.53, 46.53], [-88.0, 46.75], [-87.47, 46.53], [-87.25, 46.0], [-87.35, 45.75], [-87.25, 45.5], [-87.46, 45.0], [-87.25, 44.5], [-87.35, 44.25], [-87.25, 44.0], [-87.47, 43.47], [-87.82, 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