{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:02:32.361398", "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-Dec-02_to_2024-Dec-07_210.0_61.0"}, "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": 2024120001074}, "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 02 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 07 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 62046.21519458073}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 61.0}, "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": 210.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "210.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 209.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 214.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 58.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 62.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-145.47, 59.53], [-145.25, 59.0], [-145.47, 58.47], [-146.0, 58.25], [-146.25, 58.35], [-146.5, 58.25], [-146.75, 58.35], [-146.82, 58.32], [-146.97, 57.97], [-147.5, 57.75], [-147.75, 57.85], [-148.0, 57.75], [-148.25, 57.85], [-148.5, 57.75], [-148.75, 57.85], [-149.0, 57.75], [-149.25, 57.85], [-149.5, 57.75], [-150.03, 57.97], [-150.25, 58.5], [-150.15, 58.75], [-150.18, 58.82], [-150.25, 58.85], [-150.5, 58.75], [-151.03, 58.97], [-151.25, 59.5], [-151.03, 60.03], [-150.5, 60.25], [-150.25, 60.15], [-150.18, 60.18], [-150.15, 60.25], [-150.18, 60.32], [-150.53, 60.47], [-150.75, 61.0], [-150.53, 61.53], [-150.0, 61.75], [-149.7, 61.63], [-149.53, 62.03], [-149.18, 62.18], [-149.03, 62.53], [-148.5, 62.75], [-147.97, 62.53], [-147.82, 62.18], [-147.47, 62.03], [-147.32, 61.68], [-147.25, 61.65], [-147.0, 61.75], [-146.47, 61.53], [-146.32, 61.18], [-146.25, 61.15], [-146.0, 61.25], [-145.75, 61.15], [-145.5, 61.25], [-144.97, 61.03], [-144.75, 60.5], [-144.97, 59.97], [-145.5, 59.75], [-145.75, 59.85], [-145.87, 59.8], [-145.82, 59.68], [-145.47, 59.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-150.25, 59.0], [-150.03, 59.53], [-149.5, 59.75], [-149.25, 59.65], [-149.0, 59.75], [-148.75, 59.65], [-148.68, 59.68], [-148.53, 60.03], [-148.0, 60.25], [-147.75, 60.15], [-147.5, 60.25], [-147.25, 60.15], [-147.0, 60.25], [-146.75, 60.15], [-146.5, 60.25], [-145.97, 60.03], [-145.82, 59.68], [-145.47, 59.53], [-145.25, 59.0], [-145.47, 58.47], [-146.0, 58.25], [-146.25, 58.35], [-146.5, 58.25], [-146.75, 58.35], [-146.82, 58.32], [-146.97, 57.97], [-147.5, 57.75], [-147.75, 57.85], [-148.0, 57.75], [-148.25, 57.85], [-148.5, 57.75], [-148.75, 57.85], [-149.0, 57.75], [-149.25, 57.85], [-149.5, 57.75], [-150.03, 57.97], [-150.25, 58.5], [-150.15, 58.75], [-150.25, 59.0]]]]}, 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[6.981106058756552, 7.020199076334677, 7.421158091227255, 6.641945139567099, 6.634667968750023, 1.5037691752116302]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.734130290476989, 3.057092110037101, 4.482404419192049, 5.570032208914805, 5.600771016291216, 7.372702019632641]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.9685152469473337, 4.612831033319196, 9.00965837360718, 8.912886309759585, 8.204810919848796, 7.986013298298815]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.0789359248362633, 1.121996271336745, 1.2370803451678767, 1.2252859650498658, 1.2385041580163083, 1.2706410090346012]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.137177530007827, 1.265225878122493, 1.4816346364078716, 1.4130431102929066, 1.4199889859050472, 1.389118886877969]}}