{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:10:17.097335", "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": "2018-Feb-22_to_2018-Feb-25_46.0_14.0"}, "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": 2018020002163}, "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": "February 22 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 25 2018"}, "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": 77145.83370187033}, "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": ["Saudi Arabia", "Yemen"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 14.0}, "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": 46.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "46.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 44.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 48.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.75, 17.0], [43.97, 17.53], [44.5, 17.75], [45.03, 17.53], 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[45.18, 17.18], [45.25, 17.15], [45.32, 17.18], [45.35, 17.25], [45.25, 17.5], [45.35, 17.75], [45.25, 18.0], [45.47, 18.53], [46.0, 18.75], [46.25, 18.65], [46.32, 18.68], [46.35, 18.75], [46.25, 19.0], [46.47, 19.53], [47.0, 19.75], [47.53, 19.53], [47.75, 19.0], [47.65, 18.75], [47.75, 18.5], [47.53, 17.97], [47.18, 17.82], [47.15, 17.75], [47.25, 17.5], [47.04, 17.0], [47.25, 16.5], [47.15, 16.25], [47.2, 16.13], [47.5, 16.25], [47.75, 16.15], [48.0, 16.25], [48.53, 16.03], [48.75, 15.5], [48.53, 14.97], [48.0, 14.75], [47.75, 14.85], [47.68, 14.82], [47.53, 14.47], [47.18, 14.32], [47.03, 13.97], [46.68, 13.82], [46.53, 13.47], [46.0, 13.25], [45.47, 13.47], [45.3, 13.88], [45.0, 13.75], [44.47, 13.97], [44.25, 14.5], [44.47, 15.03], [44.82, 15.18], [44.85, 15.25], [44.82, 15.32], [44.47, 15.47], [44.25, 16.0], [44.35, 16.25], [44.32, 16.32], [43.97, 16.47], [43.75, 17.0]]]]}, "2018-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.75, 17.0], [43.97, 17.53], [44.5, 17.75], [45.03, 17.53], [45.18, 17.18], [45.25, 17.15], [45.32, 17.18], [45.35, 17.25], [45.25, 17.5], [45.35, 17.75], [45.25, 18.0], [45.47, 18.53], [46.0, 18.75], [46.25, 18.65], [46.32, 18.68], [46.35, 18.75], [46.25, 19.0], [46.47, 19.53], [47.0, 19.75], [47.53, 19.53], [47.75, 19.0], [47.65, 18.75], [47.75, 18.5], [47.53, 17.97], [47.18, 17.82], [47.15, 17.75], [47.25, 17.5], [47.04, 17.0], [47.25, 16.5], [47.15, 16.25], [47.2, 16.13], [47.5, 16.25], [47.75, 16.15], [48.0, 16.25], [48.53, 16.03], [48.75, 15.5], [48.53, 14.97], [48.0, 14.75], [47.75, 14.85], [47.68, 14.82], [47.53, 14.47], [47.18, 14.32], [47.03, 13.97], [46.68, 13.82], [46.53, 13.47], [46.0, 13.25], [45.47, 13.47], [45.3, 13.88], [45.0, 13.75], [44.47, 13.97], [44.25, 14.5], [44.47, 15.03], [44.82, 15.18], [44.85, 15.25], [44.82, 15.32], [44.47, 15.47], [44.25, 16.0], [44.35, 16.25], [44.32, 16.32], [43.97, 16.47], [43.75, 17.0]]]]}, "2018-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.0, 15.25], [45.53, 15.03], [45.75, 14.5], [45.53, 13.97], [45.0, 13.75], [44.47, 13.97], [44.25, 14.5], [44.47, 15.03], [45.0, 15.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.050143882849341}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.4977508489506457}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.6056970115568, 25.70511183982211, 26.156187520252672, 20.953860085639747]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.841993097585487, 26.96883451200341, 28.853135671043162, 20.953860085639747]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.338351271898671, 3.4480632524441366, 3.76114635119868, 1.9263347259703778]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.38017720636833, 4.346130024880779, 6.050143882849341, 1.9263347259703778]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2982299098081764, 1.380199835542144, 1.431564422422393, 1.038743435089422]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.462234620266009, 1.9114860231694148, 1.8779612746752183, 1.038743435089422]}}