{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:13:50.427367", "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-Sep-14_to_2021-Sep-21_40.5_20.5"}, "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": 2021090002047}, "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": "September 14 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 21 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 55519.819180806066}, "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": ["Red Sea"]}, "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": 20.5}, "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": 40.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 39.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 41.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[39.32, 16.68], [39.47, 17.03], [39.82, 17.18], [39.85, 17.25], [39.75, 17.5], [39.85, 17.75], [39.75, 18.0], [39.85, 18.25], [39.75, 18.5], [39.97, 19.03], [40.32, 19.18], [40.35, 19.25], [40.32, 19.32], [39.97, 19.47], [39.82, 19.82], [39.47, 19.97], [39.25, 20.5], [39.35, 20.75], [39.25, 21.0], [39.47, 21.53], [40.0, 21.75], [40.25, 21.65], [40.5, 21.75], [41.03, 21.53], [41.18, 21.18], [41.53, 21.03], [41.68, 20.68], [42.03, 20.53], [42.25, 20.0], [42.15, 19.75], [42.25, 19.5], [42.03, 18.97], [41.68, 18.82], [41.54, 18.5], [41.75, 18.0], [41.65, 17.75], [41.75, 17.5], [41.53, 16.97], [41.18, 16.82], [41.03, 16.47], [40.68, 16.32], [40.53, 15.97], [40.18, 15.82], [40.03, 15.47], [39.5, 15.25], [38.97, 15.47], [38.75, 16.0], [38.97, 16.53], [39.32, 16.68]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Arabian-Peninsula"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": 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{"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.972909918945163}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4266008870919638}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.93295916007713, 32.608535356599134, 32.86484519488721, 33.153704151660406, 33.39810400917759, 32.80833798200439, 33.10948479637432, 32.44556404630117]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.05570004334237, 33.86948859758701, 34.63653591318359, 35.62294062457755, 35.77710056203745, 36.175946404289164, 35.909762536616256, 35.74833237898213]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2591288180420974, 0.9182868491643698, 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2.527765196277962, 3.60593936014494, 2.7251684555698428, 2.3929961254926364]}}