{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:53:38.839147", "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": "2023-May-31_to_2023-Jun-02_31.5_30.5"}, "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": 2023050003032}, "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 31 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 02 2023"}, "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": 148480.69138980418}, "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": ["Egypt"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": ["Mediterranean 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": 30.5}, "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": 31.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "31.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 27.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 32.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[27.32, 27.18], [27.35, 27.25], [27.25, 27.5], [27.35, 27.75], [27.25, 28.0], [27.35, 28.25], [27.25, 28.5], [27.47, 29.03], [27.82, 29.18], [27.85, 29.25], [27.82, 29.32], [27.47, 29.47], [27.25, 30.0], [27.46, 30.5], [27.25, 31.0], [27.47, 31.53], [28.0, 31.75], [28.5, 31.54], [29.0, 31.75], [29.25, 31.65], [29.5, 31.75], [29.75, 31.65], [30.0, 31.75], [30.25, 31.65], [30.5, 31.75], [31.03, 31.53], [31.18, 31.18], [31.25, 31.15], [31.5, 31.25], [32.0, 31.04], [32.5, 31.25], [33.03, 31.03], [33.25, 30.5], [33.15, 30.25], [33.25, 30.0], [33.03, 29.47], [32.5, 29.25], [32.25, 29.35], [32.18, 29.32], [32.03, 28.97], [31.5, 28.75], [31.25, 28.85], [31.18, 28.82], [31.03, 28.47], [30.68, 28.32], [30.53, 27.97], [30.18, 27.82], [30.15, 27.75], [30.25, 27.5], [30.15, 27.25], [30.25, 27.0], [30.03, 26.47], [29.5, 26.25], [29.2, 26.38], [29.03, 25.97], [28.5, 25.75], [28.25, 25.85], [28.18, 25.82], [28.03, 25.47], [27.5, 25.25], [26.97, 25.47], [26.75, 26.0], [26.85, 26.25], [26.75, 26.5], [26.97, 27.03], [27.32, 27.18]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "Sahara", "Arabian-Peninsula"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.75, 26.5], [26.97, 27.03], [27.32, 27.18], [27.35, 27.25], [27.25, 27.5], [27.35, 27.75], [27.25, 28.0], [27.35, 28.25], [27.25, 28.5], [27.47, 29.03], [27.82, 29.18], [27.85, 29.25], [27.82, 29.32], [27.47, 29.47], [27.25, 30.0], [27.46, 30.5], [27.25, 31.0], [27.47, 31.53], [28.0, 31.75], [28.5, 31.54], [29.0, 31.75], [29.25, 31.65], [29.5, 31.75], [29.75, 31.65], [30.0, 31.75], [30.25, 31.65], [30.5, 31.75], [31.03, 31.53], [31.18, 31.18], [31.25, 31.15], [31.5, 31.25], [32.0, 31.04], [32.5, 31.25], [33.03, 31.03], [33.25, 30.5], [33.15, 30.25], [33.25, 30.0], [33.03, 29.47], [32.5, 29.25], [32.25, 29.35], [32.18, 29.32], [32.03, 28.97], [31.5, 28.75], [31.25, 28.85], [31.18, 28.82], [31.03, 28.47], [30.68, 28.32], [30.53, 27.97], [30.18, 27.82], [30.15, 27.75], [30.25, 27.5], [30.15, 27.25], [30.25, 27.0], [30.03, 26.47], [29.5, 26.25], [29.2, 26.38], [29.03, 25.97], [28.5, 25.75], [28.25, 25.85], [28.18, 25.82], [28.03, 25.47], [27.5, 25.25], [26.97, 25.47], [26.75, 26.0], [26.85, 26.25], [26.75, 26.5]]]]}, "2023-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.75, 26.5], [26.97, 27.03], [27.32, 27.18], [27.35, 27.25], [27.25, 27.5], [27.35, 27.75], [27.25, 28.0], [27.35, 28.25], [27.25, 28.5], [27.47, 29.03], [27.82, 29.18], [27.85, 29.25], [27.82, 29.32], [27.47, 29.47], [27.25, 30.0], [27.46, 30.5], [27.25, 31.0], [27.47, 31.53], [28.0, 31.75], [28.5, 31.54], [29.0, 31.75], [29.25, 31.65], [29.5, 31.75], [29.75, 31.65], [30.0, 31.75], [30.25, 31.65], [30.5, 31.75], [31.03, 31.53], [31.18, 31.18], [31.25, 31.15], [31.5, 31.25], [32.0, 31.04], [32.5, 31.25], [33.03, 31.03], [33.25, 30.5], [33.15, 30.25], [33.25, 30.0], [33.03, 29.47], [32.5, 29.25], 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{"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.511505818910905, 35.22887660586781, 34.91441577393721]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.8851797333490223, 5.648328141332569, 5.289334078320947]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.573505618573392, 7.39353485292537, 8.26661406126027]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6497927407124848, 2.3659992550664115, 2.2709622777507863]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.318107164997007, 3.1862146350779788, 4.0253131726587]}}