{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:37:18.031772", "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": "2023-Dec-04_to_2023-Dec-07_244.0_38.0"}, "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": 2023120000996}, "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": "December 04 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 07 2023"}, "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": 124282.12951698319}, "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": ["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": []}, "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": 38.0}, "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": 244.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "244.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 241.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 247.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.5, 39.25], [-117.97, 39.03], [-117.75, 38.5], [-117.85, 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[-119.25, 38.0], [-119.15, 38.25], [-119.25, 38.5], [-119.03, 39.03]], [[-116.75, 37.65], [-116.62, 37.7], [-116.68, 37.82], [-116.93, 37.93], [-116.82, 37.68], [-116.75, 37.65]]]]}, "2023-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-119.03, 39.03], [-118.5, 39.25], [-118.25, 39.15], [-118.0, 39.25], [-117.75, 39.15], [-117.5, 39.25], [-117.2, 39.13], [-117.03, 39.53], [-116.68, 39.68], [-116.53, 40.03], [-116.0, 40.25], [-115.47, 40.03], [-115.25, 39.5], [-115.35, 39.25], [-115.25, 39.0], [-115.35, 38.75], [-115.32, 38.68], [-114.97, 38.53], [-114.75, 38.0], [-114.85, 37.75], [-114.82, 37.68], [-114.75, 37.65], [-114.5, 37.75], [-113.97, 37.53], [-113.75, 37.0], [-113.97, 36.47], [-114.32, 36.32], [-114.35, 36.25], [-114.25, 36.0], [-114.35, 35.75], [-114.32, 35.68], [-114.25, 35.65], [-114.0, 35.75], [-113.75, 35.65], [-113.5, 35.75], [-112.97, 35.53], [-112.82, 35.18], [-112.47, 35.03], [-112.25, 34.5], [-112.47, 33.97], [-113.0, 33.75], [-113.25, 33.85], 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