{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:06.661036", "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-Mar-22_to_2022-Mar-24_48.0_25.5"}, "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": 2022030002416}, "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": "March 22 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 24 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": 67090.7612499895}, "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": 25.5}, "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": 48.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "48.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 46.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 49.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[45.47, 25.53], [46.0, 25.75], [46.25, 25.65], [46.32, 25.68], [46.35, 25.75], [46.25, 26.0], [46.47, 26.53], [46.82, 26.68], [46.97, 27.03], [47.5, 27.25], [47.75, 27.15], [48.0, 27.25], [48.25, 27.15], [48.5, 27.25], [49.03, 27.03], [49.18, 26.68], [49.53, 26.53], [49.75, 26.0], [49.53, 25.47], [49.18, 25.32], [49.03, 24.97], [48.68, 24.82], [48.65, 24.75], [48.75, 24.5], [48.53, 23.97], [48.0, 23.75], [47.75, 23.85], [47.68, 23.82], [47.53, 23.47], [47.18, 23.32], [47.03, 22.97], [46.5, 22.75], [45.97, 22.97], [45.75, 23.5], [45.85, 23.75], [45.75, 24.0], [45.85, 24.25], [45.82, 24.32], [45.47, 24.47], [45.25, 25.0], [45.47, 25.53]]]]}}, "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": {"2022-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, 24.47], [45.25, 25.0], [45.47, 25.53], [46.0, 25.75], [46.25, 25.65], [46.32, 25.68], [46.35, 25.75], [46.25, 26.0], [46.47, 26.53], [46.82, 26.68], [46.97, 27.03], [47.5, 27.25], [47.75, 27.15], [48.0, 27.25], [48.25, 27.15], [48.5, 27.25], [49.03, 27.03], [49.18, 26.68], [49.53, 26.53], [49.75, 26.0], [49.53, 25.47], [49.18, 25.32], [49.03, 24.97], [48.68, 24.82], [48.65, 24.75], [48.75, 24.5], [48.53, 23.97], [48.0, 23.75], [47.75, 23.85], [47.68, 23.82], [47.53, 23.47], [47.18, 23.32], [47.03, 22.97], [46.5, 22.75], [45.97, 22.97], [45.75, 23.5], [45.85, 23.75], [45.75, 24.0], [45.85, 24.25], [45.82, 24.32], [45.47, 24.47]]]]}, "2022-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, 24.47], [45.25, 25.0], [45.47, 25.53], [46.0, 25.75], [46.25, 25.65], [46.32, 25.68], [46.35, 25.75], [46.25, 26.0], [46.47, 26.53], [46.82, 26.68], [46.97, 27.03], [47.5, 27.25], [47.75, 27.15], [48.0, 27.25], [48.25, 27.15], [48.5, 27.25], [49.03, 27.03], [49.18, 26.68], [49.53, 26.53], [49.75, 26.0], [49.53, 25.47], [49.18, 25.32], [49.03, 24.97], [48.68, 24.82], [48.65, 24.75], [48.75, 24.5], [48.53, 23.97], [48.0, 23.75], [47.75, 23.85], [47.68, 23.82], [47.53, 23.47], [47.18, 23.32], [47.03, 22.97], [46.5, 22.75], [45.97, 22.97], [45.75, 23.5], [45.85, 23.75], [45.75, 24.0], [45.85, 24.25], [45.82, 24.32], [45.47, 24.47]]]]}, "2022-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, 24.47], [45.25, 25.0], [45.47, 25.53], [46.0, 25.75], [46.25, 25.65], [46.32, 25.68], [46.35, 25.75], [46.25, 26.0], [46.47, 26.53], [46.82, 26.68], [46.97, 27.03], [47.5, 27.25], [47.75, 27.15], [48.0, 27.25], [48.25, 27.15], [48.5, 27.25], [49.03, 27.03], [49.18, 26.68], [49.53, 26.53], [49.75, 26.0], [49.53, 25.47], [49.18, 25.32], [49.03, 24.97], [48.68, 24.82], [48.65, 24.75], [48.75, 24.5], [48.53, 23.97], [48.0, 23.75], [47.75, 23.85], [47.68, 23.82], [47.53, 23.47], [47.18, 23.32], [47.03, 22.97], [46.5, 22.75], [45.97, 22.97], [45.75, 23.5], [45.85, 23.75], [45.75, 24.0], [45.85, 24.25], [45.82, 24.32], [45.47, 24.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.308526009124819}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.737044771025226}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.11528547552001, 27.94591528004395, 28.129215159513137]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.914058406118215, 28.906337988896496, 29.43602773103015]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.480923068961093, 6.284226008560466, 6.445985235554119]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.61272595341552, 7.198240669186589, 7.308526009124819]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4391277185167428, 1.9933689577245859, 2.012252386336361]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6772979358331663, 2.2214211711154013, 2.3225978462216244]}}