{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:17:52.520338", "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-Aug-12_to_2018-Aug-17_57.5_23.0"}, "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": 2018080002154}, "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": "August 12 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 17 2018"}, "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": 65830.99566228621}, "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": ["Oman"]}, "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": 23.0}, "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": 57.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "57.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 56.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 59.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.85, 23.25], [55.75, 23.5], [55.97, 24.03], [56.5, 24.25], 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20.5], [58.53, 19.97], [58.0, 19.75], [57.47, 19.97], [57.32, 20.32], [56.97, 20.47], [56.82, 20.82], [56.47, 20.97], [56.25, 21.5], [56.35, 21.75], [56.32, 21.82], [55.97, 21.97], [55.75, 22.5], [55.85, 22.75], [55.75, 23.0], [55.85, 23.25]]]]}, "2018-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.85, 23.25], [55.75, 23.5], [55.97, 24.03], [56.5, 24.25], [57.03, 24.03], [57.18, 23.68], [57.25, 23.65], [57.5, 23.75], [57.75, 23.65], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.53, 23.03], [59.75, 22.5], [59.53, 21.97], [59.18, 21.82], [59.15, 21.75], [59.25, 21.5], [59.03, 20.97], [58.68, 20.82], [58.65, 20.75], [58.75, 20.5], [58.53, 19.97], [58.0, 19.75], [57.47, 19.97], [57.32, 20.32], [56.97, 20.47], [56.82, 20.82], [56.47, 20.97], [56.25, 21.5], [56.35, 21.75], [56.32, 21.82], [55.97, 21.97], [55.75, 22.5], [55.85, 22.75], [55.75, 23.0], [55.85, 23.25]]]]}, "2018-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.47, 23.03], [56.82, 23.18], [56.97, 23.53], [57.5, 23.75], [57.75, 23.65], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.25, 23.0], [59.03, 22.47], [58.5, 22.25], [58.25, 22.35], [58.0, 22.25], [57.75, 22.35], [57.68, 22.32], [57.54, 22.0], [57.68, 21.68], [58.03, 21.53], [58.25, 21.0], [58.03, 20.47], [57.5, 20.25], [56.97, 20.47], [56.82, 20.82], [56.47, 20.97], [56.25, 21.5], [56.46, 22.0], [56.25, 22.5], [56.47, 23.03]]]]}, "2018-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.5, 23.75], [57.75, 23.65], [58.0, 23.75], [58.53, 23.53], [58.75, 23.0], [58.53, 22.47], [58.0, 22.25], [57.75, 22.35], [57.68, 22.32], [57.53, 21.97], [57.0, 21.75], [56.47, 21.97], [56.25, 22.5], [56.47, 23.03], [56.82, 23.18], [56.97, 23.53], [57.5, 23.75]]]]}, "2018-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.5, 23.75], [58.03, 23.53], [58.25, 23.0], [58.03, 22.47], [57.5, 22.25], [56.97, 22.47], [56.75, 23.0], [56.97, 23.53], [57.5, 23.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.4189714749409745}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.4771645479140365}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.66900191331587, 37.92455650430361, 36.910328835146004, 36.39372087401347, 35.846945849406836, 34.44794167889853]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [39.62765840657465, 39.940566668573695, 39.332225963337294, 38.338423359915566, 37.39191313807197, 34.44794167889853]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.6575561311066243, 4.024444955668622, 3.217720605179031, 2.5635872585573813, 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