{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:31.607208", "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-Sep-24_to_2012-Sep-27_264.5_32.5"}, "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": 2012090002551}, "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": "September 24 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 27 2012"}, "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": 51485.70569113619}, "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": 32.5}, "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": 264.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "264.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 263.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 266.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.03, 31.97], [-97.25, 32.5], [-97.03, 33.03], [-96.5, 33.25], [-96.25, 33.15], [-96.0, 33.25], [-95.75, 33.15], [-95.5, 33.25], [-94.97, 33.03], [-94.75, 32.5], [-94.85, 32.25], [-94.75, 32.0], [-94.97, 31.47], [-95.5, 31.25], [-96.03, 31.47], [-96.18, 31.82], [-96.25, 31.85], [-96.5, 31.75], [-97.03, 31.97]]]]}, "2012-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.18, 33.68], [-96.15, 33.75], [-96.25, 34.0], [-96.15, 34.25], [-96.25, 34.5], [-96.03, 35.03], [-95.68, 35.18], [-95.53, 35.53], [-95.0, 35.75], [-94.75, 35.65], [-94.5, 35.75], [-94.25, 35.65], [-94.0, 35.75], [-93.47, 35.53], [-93.25, 35.0], [-93.47, 34.47], [-93.82, 34.32], [-93.85, 34.25], [-93.75, 34.0], [-93.85, 33.75], [-93.75, 33.5], [-93.97, 32.97], [-94.32, 32.82], [-94.35, 32.75], [-94.25, 32.5], [-94.47, 31.97], [-94.82, 31.82], [-94.97, 31.47], [-95.5, 31.25], [-96.03, 31.47], [-96.18, 31.82], [-96.25, 31.85], [-96.5, 31.75], [-97.03, 31.97], [-97.25, 32.5], [-97.03, 33.03], [-96.68, 33.18], [-96.53, 33.53], [-96.18, 33.68]]]]}, "2012-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.18, 33.68], [-96.15, 33.75], [-96.25, 34.0], [-96.15, 34.25], [-96.25, 34.5], [-96.03, 35.03], [-95.68, 35.18], [-95.53, 35.53], [-95.0, 35.75], [-94.75, 35.65], [-94.5, 35.75], [-94.25, 35.65], [-94.0, 35.75], [-93.47, 35.53], [-93.25, 35.0], [-93.47, 34.47], [-93.82, 34.32], [-93.85, 34.25], [-93.75, 34.0], [-93.85, 33.75], [-93.75, 33.5], [-93.97, 32.97], [-94.32, 32.82], [-94.35, 32.75], [-94.25, 32.5], [-94.47, 31.97], [-94.82, 31.82], [-94.97, 31.47], [-95.5, 31.25], [-96.03, 31.47], [-96.18, 31.82], [-96.25, 31.85], [-96.5, 31.75], [-97.03, 31.97], [-97.25, 32.5], [-97.03, 33.03], [-96.68, 33.18], [-96.53, 33.53], [-96.18, 33.68]]]]}, "2012-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.53, 33.53], [-96.18, 33.68], [-96.15, 33.75], [-96.25, 34.0], [-96.15, 34.25], [-96.25, 34.5], [-96.03, 35.03], [-95.68, 35.18], [-95.53, 35.53], [-95.0, 35.75], [-94.75, 35.65], [-94.5, 35.75], [-94.25, 35.65], [-94.0, 35.75], [-93.47, 35.53], [-93.25, 35.0], [-93.47, 34.47], [-93.82, 34.32], [-93.85, 34.25], [-93.75, 34.0], [-93.85, 33.75], [-93.75, 33.5], [-93.97, 32.97], [-94.32, 32.82], [-94.35, 32.75], [-94.25, 32.5], [-94.47, 31.97], [-95.0, 31.75], [-95.25, 31.85], [-95.5, 31.75], [-95.75, 31.85], [-96.0, 31.75], [-96.53, 31.97], [-96.75, 32.5], [-96.65, 32.75], [-96.75, 33.0], [-96.53, 33.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.14811226281563}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.127005818510563}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.65812966943099, 27.546188149656018, 27.56250231199192, 26.67969287788901]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.88348322645072, 28.80823699062654, 28.555010703472533, 28.183320245478967]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.6062008766699165, 5.252481227731008, 5.403614355740606, 4.795980309530165]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.698420586746806, 6.14811226281563, 6.131726375876951, 5.823643103001018]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.243720939493916, 1.4640615708462652, 1.5614267832779405, 1.4210345917996348]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3204053093608061, 1.6925911432756287, 1.8232032226387753, 1.6589189657659318]}}