{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:03.378376", "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": "2021-Jan-15_to_2021-Jan-18_45.0_22.5"}, "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": 2021010001976}, "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 15 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 18 2021"}, "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": 82485.46684931112}, "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"]}, "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": 22.5}, "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": 45.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "45.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 42.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 46.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.47, 24.03], [43.0, 24.25], [43.25, 24.15], [43.5, 24.25], 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22.0], [46.53, 21.47], [46.18, 21.32], [46.03, 20.97], [45.5, 20.75], [44.97, 20.97], [44.82, 21.32], [44.75, 21.35], [44.68, 21.32], [44.53, 20.97], [44.0, 20.75], [43.47, 20.97], [43.25, 21.5], [43.35, 21.75], [43.32, 21.82], [42.97, 21.97], [42.82, 22.32], [42.47, 22.47], [42.25, 23.0], [42.35, 23.25], [42.25, 23.5], [42.47, 24.03]]]]}, "2021-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.47, 24.03], [43.0, 24.25], [43.25, 24.15], [43.5, 24.25], [43.75, 24.15], [43.82, 24.18], [43.97, 24.53], [44.5, 24.75], [44.75, 24.65], [44.82, 24.68], [44.97, 25.03], [45.5, 25.25], [45.75, 25.15], [46.0, 25.25], [46.53, 25.03], [46.75, 24.5], [46.65, 24.25], [46.75, 24.0], [46.65, 23.75], [46.75, 23.5], [46.54, 23.0], [46.75, 22.5], [46.65, 22.25], [46.75, 22.0], [46.53, 21.47], [46.18, 21.32], [46.03, 20.97], [45.5, 20.75], [44.97, 20.97], [44.82, 21.32], [44.75, 21.35], [44.68, 21.32], [44.53, 20.97], [44.0, 20.75], [43.47, 20.97], [43.25, 21.5], [43.35, 21.75], [43.32, 21.82], [42.97, 21.97], [42.82, 22.32], [42.47, 22.47], [42.25, 23.0], [42.35, 23.25], [42.25, 23.5], [42.47, 24.03]]]]}, "2021-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.35, 22.25], [43.25, 22.5], [43.47, 23.03], [43.82, 23.18], [43.85, 23.25], [43.75, 23.5], [43.85, 23.75], [43.75, 24.0], [43.97, 24.53], [44.5, 24.75], [44.75, 24.65], [45.0, 24.75], [45.25, 24.65], [45.32, 24.68], [45.47, 25.03], [46.0, 25.25], [46.53, 25.03], [46.75, 24.5], [46.65, 24.25], [46.75, 24.0], [46.65, 23.75], [46.75, 23.5], [46.54, 23.0], [46.75, 22.5], [46.65, 22.25], [46.75, 22.0], [46.53, 21.47], [46.18, 21.32], [46.03, 20.97], [45.5, 20.75], [44.97, 20.97], [44.82, 21.32], [44.75, 21.35], [44.68, 21.32], [44.53, 20.97], [44.0, 20.75], [43.47, 20.97], [43.25, 21.5], [43.35, 21.75], [43.25, 22.0], [43.35, 22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.492363005118989}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.022902250790219}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.49840851051664, 19.703983213140305, 20.142510102649908, 20.05003362935139]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.24480740451901, 20.622906930500733, 21.408847241609294, 21.94391452418955]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.678115127808004, 4.85331969294933, 5.318984400871664, 5.176581026250607]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.36213865550144, 5.755292816486985, 6.492363005118989, 6.265964870616358]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4497351866600894, 1.5264413616747716, 1.672955664626869, 1.6480689561659485]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5973174688631777, 1.7331180478943595, 1.964641360462904, 2.0441422235085693]}}