{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:33.601423", "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": "2012-Jan-30_to_2012-Feb-03_266.5_46.5"}, "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": 2012010002736}, "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": "January 30 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 03 2012"}, "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": 62780.07658888155}, "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"]}, "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": 46.5}, "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": 266.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "266.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 262.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 267.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.65, 44.75], [-97.75, 45.0], [-97.53, 45.53], [-97.0, 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[-92.97, 44.47], [-93.5, 44.25], [-93.75, 44.35], [-94.0, 44.25], [-94.25, 44.35], [-94.37, 44.3], [-94.25, 44.0], [-94.47, 43.47], [-95.0, 43.25], [-95.25, 43.35], [-95.5, 43.25], [-95.75, 43.35], [-96.0, 43.25], [-96.5, 43.46], [-97.0, 43.25], [-97.53, 43.47], [-97.75, 44.0], [-97.65, 44.25], [-97.75, 44.5], [-97.65, 44.75]]]]}, "2012-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.65, 44.75], [-97.75, 45.0], [-97.53, 45.53], [-97.0, 45.75], [-96.75, 45.65], [-96.5, 45.75], [-96.25, 45.65], [-96.18, 45.68], [-96.03, 46.03], [-95.5, 46.25], [-95.25, 46.15], [-95.0, 46.25], [-94.75, 46.15], [-94.68, 46.18], [-94.53, 46.53], [-94.18, 46.68], [-94.15, 46.75], [-94.25, 47.0], [-94.15, 47.25], [-94.25, 47.5], [-94.15, 47.75], [-94.25, 48.0], [-94.03, 48.53], [-93.5, 48.75], [-92.97, 48.53], [-92.82, 48.18], [-92.47, 48.03], [-92.25, 47.5], [-92.35, 47.25], [-92.32, 47.18], [-91.97, 47.03], [-91.75, 46.5], [-91.97, 45.97], [-92.5, 45.75], [-92.75, 45.85], [-92.82, 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10.437764944958108}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [1.6492271554022864, 2.580479950846609, 0.0737388869760025, -0.543200848953802, -0.8633523869099236]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.8761514797085397, 6.17736022005289, 2.021338375045559, 0.4498744788610338, 0.03643184900505503]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [10.249526612802134, 11.889505972093128, 9.956324750425273, 9.658827371375633, 9.913037221187857]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [11.072169864612533, 14.404247899385041, 10.91671045179362, 11.811308276012369, 10.453105411600859]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2515984307902808, 1.4615964857197994, 1.2198240205897042, 1.2024321874475645, 1.2547315175728126]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3499098931547286, 1.7565359964417524, 1.2966536329243725, 1.374513058920875, 1.3035478524940476]}}