{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:20:23.127820", "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": "2022-May-05_to_2022-May-07_49.5_24.5"}, "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": 2022050001692}, "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": "May 05 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 07 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 114429.71729127917}, "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"]}, "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": 24.5}, "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": 49.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "49.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 44.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 49.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[44.32, 21.68], [44.47, 22.03], [45.0, 22.25], [45.25, 22.15], [45.32, 22.18], [45.47, 22.53], [45.82, 22.68], [45.97, 23.03], [46.32, 23.18], [46.47, 23.53], [47.0, 23.75], [47.25, 23.65], [47.32, 23.68], [47.47, 24.03], [47.82, 24.18], [47.97, 24.53], [48.32, 24.68], [48.47, 25.03], [48.82, 25.18], [48.97, 25.53], [49.5, 25.75], [50.03, 25.53], [50.25, 25.0], [50.15, 24.75], [50.25, 24.5], [50.15, 24.25], [50.25, 24.0], [50.03, 23.47], [49.68, 23.32], [49.65, 23.25], [49.75, 23.0], [49.53, 22.47], [49.0, 22.25], [48.75, 22.35], [48.68, 22.32], [48.65, 22.25], [48.75, 22.0], [48.53, 21.47], [48.18, 21.32], [48.03, 20.97], [47.68, 20.82], [47.53, 20.47], [47.18, 20.32], [47.03, 19.97], [46.5, 19.75], [46.25, 19.85], [46.0, 19.75], [45.75, 19.85], [45.5, 19.75], [45.25, 19.85], [45.0, 19.75], [44.75, 19.85], [44.5, 19.75], [43.97, 19.97], [43.75, 20.5], [43.85, 20.75], [43.75, 21.0], [43.97, 21.53], [44.32, 21.68]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.75, 21.0], [43.97, 21.53], [44.32, 21.68], [44.47, 22.03], [45.0, 22.25], [45.25, 22.15], [45.32, 22.18], [45.47, 22.53], [45.82, 22.68], [45.97, 23.03], [46.32, 23.18], [46.47, 23.53], [47.0, 23.75], [47.25, 23.65], [47.32, 23.68], [47.47, 24.03], [47.82, 24.18], [47.97, 24.53], [48.32, 24.68], [48.47, 25.03], [48.82, 25.18], [48.97, 25.53], [49.5, 25.75], [50.03, 25.53], [50.25, 25.0], [50.15, 24.75], [50.25, 24.5], [50.15, 24.25], [50.25, 24.0], [50.03, 23.47], [49.68, 23.32], [49.65, 23.25], [49.75, 23.0], [49.53, 22.47], [49.0, 22.25], [48.75, 22.35], [48.68, 22.32], [48.65, 22.25], [48.75, 22.0], [48.53, 21.47], [48.18, 21.32], [48.03, 20.97], [47.68, 20.82], [47.53, 20.47], [47.18, 20.32], [47.03, 19.97], [46.5, 19.75], [46.25, 19.85], [46.0, 19.75], [45.75, 19.85], [45.5, 19.75], [45.25, 19.85], [45.0, 19.75], [44.75, 19.85], [44.5, 19.75], [43.97, 19.97], [43.75, 20.5], [43.85, 20.75], [43.75, 21.0]]]]}, "2022-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.75, 21.0], [43.97, 21.53], [44.32, 21.68], [44.47, 22.03], [45.0, 22.25], [45.25, 22.15], [45.32, 22.18], [45.47, 22.53], [45.82, 22.68], [45.97, 23.03], [46.32, 23.18], [46.47, 23.53], [47.0, 23.75], [47.25, 23.65], [47.32, 23.68], [47.47, 24.03], [47.82, 24.18], [47.97, 24.53], [48.32, 24.68], [48.47, 25.03], [48.82, 25.18], [48.97, 25.53], [49.5, 25.75], [50.03, 25.53], [50.25, 25.0], [50.15, 24.75], [50.25, 24.5], [50.15, 24.25], [50.25, 24.0], [50.03, 23.47], [49.68, 23.32], [49.65, 23.25], [49.75, 23.0], [49.53, 22.47], [49.0, 22.25], [48.75, 22.35], [48.68, 22.32], [48.65, 22.25], [48.75, 22.0], [48.53, 21.47], [48.18, 21.32], [48.03, 20.97], [47.68, 20.82], [47.53, 20.47], [47.18, 20.32], [47.03, 19.97], [46.5, 19.75], [46.25, 19.85], [46.0, 19.75], [45.75, 19.85], [45.5, 19.75], [45.25, 19.85], [45.0, 19.75], [44.75, 19.85], [44.5, 19.75], [43.97, 19.97], [43.75, 20.5], [43.85, 20.75], [43.75, 21.0]]]]}, "2022-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.75, 21.0], [43.97, 21.53], [44.32, 21.68], [44.47, 22.03], [45.0, 22.25], [45.25, 22.15], [45.32, 22.18], [45.47, 22.53], [45.82, 22.68], [45.97, 23.03], [46.32, 23.18], [46.47, 23.53], [47.0, 23.75], [47.25, 23.65], [47.32, 23.68], [47.47, 24.03], [47.82, 24.18], [47.97, 24.53], [48.32, 24.68], [48.47, 25.03], [48.82, 25.18], [48.97, 25.53], [49.5, 25.75], [50.03, 25.53], [50.25, 25.0], [50.15, 24.75], [50.25, 24.5], [50.15, 24.25], [50.25, 24.0], [50.03, 23.47], [49.68, 23.32], [49.65, 23.25], [49.75, 23.0], [49.53, 22.47], [49.0, 22.25], [48.75, 22.35], [48.68, 22.32], [48.65, 22.25], [48.75, 22.0], [48.53, 21.47], [48.18, 21.32], [48.03, 20.97], [47.68, 20.82], [47.53, 20.47], [47.18, 20.32], [47.03, 19.97], [46.5, 19.75], [46.25, 19.85], [46.0, 19.75], [45.75, 19.85], [45.5, 19.75], [45.25, 19.85], [45.0, 19.75], [44.75, 19.85], [44.5, 19.75], [43.97, 19.97], [43.75, 20.5], [43.85, 20.75], [43.75, 21.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.78751559113789}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.508716985285521}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [35.434785161916636, 36.09388288738501, 35.14825516112785]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.949552773113055, 38.51334192485757, 36.254214051301744]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.552775888388285, 4.05922866803746, 2.914146399430817]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.622297084994159, 6.78751559113789, 4.066738694107926]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6978248127493707, 1.9618514467491006, 1.459411252365324]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.323985266719165, 2.8389924724675306, 2.1362480560083577]}}