{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:27.719803", "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": "2013-May-20_to_2013-May-27_37.0_16.5"}, "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": 2013050002406}, "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 20 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 27 2013"}, "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": 496100.12138818396}, "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", "Eritrea", "Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "Sahara"]}, "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": ["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": 16.5}, "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": 37.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "37.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 27.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, 17.03], [36.0, 17.25], [36.25, 17.15], [36.5, 17.25], [36.75, 17.15], [37.0, 17.25], [37.25, 17.15], [37.5, 17.25], [38.03, 17.03], [38.25, 16.5], [38.15, 16.25], [38.25, 16.0], [38.03, 15.47], [37.5, 15.25], [37.25, 15.35], [37.0, 15.25], [36.75, 15.35], [36.5, 15.25], [36.25, 15.35], [36.0, 15.25], [35.47, 15.47], [35.25, 16.0], [35.35, 16.25], [35.25, 16.5], [35.47, 17.03]]]]}, "2013-05-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, 17.03], [35.82, 17.18], [35.97, 17.53], [36.5, 17.75], [36.75, 17.65], [37.0, 17.75], [37.25, 17.65], [37.5, 17.75], [38.03, 17.53], [38.25, 17.0], [38.15, 16.75], [38.25, 16.5], [38.15, 16.25], [38.25, 16.0], [38.03, 15.47], [37.5, 15.25], [37.25, 15.35], [37.0, 15.25], [36.75, 15.35], [36.5, 15.25], [36.25, 15.35], [36.0, 15.25], [35.47, 15.47], [35.25, 16.0], [35.35, 16.25], [35.25, 16.5], [35.47, 17.03]]]]}, "2013-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, 17.03], [35.82, 17.18], [35.97, 17.53], [36.5, 17.75], [36.75, 17.65], [37.0, 17.75], [37.25, 17.65], [37.5, 17.75], [38.03, 17.53], [38.25, 17.0], [38.15, 16.75], [38.25, 16.5], [38.15, 16.25], [38.25, 16.0], [38.03, 15.47], [37.5, 15.25], [37.25, 15.35], [37.0, 15.25], [36.75, 15.35], [36.5, 15.25], [36.25, 15.35], [36.0, 15.25], [35.47, 15.47], [35.25, 16.0], [35.35, 16.25], [35.25, 16.5], [35.47, 17.03]]]]}, "2013-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.25, 21.65], [33.32, 21.68], [33.47, 22.03], [34.0, 22.25], [34.25, 22.15], [34.5, 22.25], [34.75, 22.15], [35.0, 22.25], [35.53, 22.03], [35.68, 21.68], [35.75, 21.65], [36.0, 21.75], [36.53, 21.53], [36.68, 21.18], [37.03, 21.03], [37.25, 20.5], [37.15, 20.25], [37.25, 20.0], [37.04, 19.5], [37.18, 19.18], [37.53, 19.03], [37.75, 18.5], [37.65, 18.25], [37.75, 18.0], [37.65, 17.75], [37.68, 17.68], [37.75, 17.65], [38.0, 17.75], [38.53, 17.53], [38.75, 17.0], [38.53, 16.47], [38.18, 16.32], [38.15, 16.25], [38.25, 16.0], [38.03, 15.47], [37.5, 15.25], [37.25, 15.35], [37.0, 15.25], [36.75, 15.35], [36.5, 15.25], [36.25, 15.35], [36.18, 15.32], [36.03, 14.97], [35.68, 14.82], [35.53, 14.47], [35.0, 14.25], [34.47, 14.47], [34.25, 15.0], [34.35, 15.25], [34.25, 15.5], [34.46, 16.0], [34.25, 16.5], [34.35, 16.75], [34.25, 17.0], [34.47, 17.53], [35.0, 17.75], [35.25, 17.65], [35.32, 17.68], [35.47, 18.03], [35.82, 18.18], [35.85, 18.25], [35.82, 18.32], [35.47, 18.47], [35.32, 18.82], [34.97, 18.97], [34.82, 19.32], [34.75, 19.35], [34.5, 19.25], [33.97, 19.47], [33.75, 20.0], [33.85, 20.25], [33.82, 20.32], [33.75, 20.35], [33.68, 20.32], [33.53, 19.97], [33.0, 19.75], [32.75, 19.85], [32.5, 19.75], [31.97, 19.97], [31.75, 20.5], [31.97, 21.03], [32.32, 21.18], [32.47, 21.53], [33.0, 21.75], [33.25, 21.65]]], [[[35.0, 26.75], [35.53, 26.53], [35.75, 26.0], [35.65, 25.75], [35.75, 25.5], [35.53, 24.97], [35.0, 24.75], [34.47, 24.97], [34.25, 25.5], [34.35, 25.75], [34.25, 26.0], [34.47, 26.53], [35.0, 26.75]]]]}, "2013-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.35, 19.75], [30.25, 20.0], [30.35, 20.25], [30.25, 20.5], [30.47, 21.03], [31.0, 21.25], [31.25, 21.15], [31.32, 21.18], [31.35, 21.25], [31.25, 21.5], [31.47, 22.03], [31.82, 22.18], [31.88, 22.3], [31.47, 22.47], [31.25, 23.0], [31.47, 23.53], [31.82, 23.68], [31.97, 24.03], [32.5, 24.25], [32.8, 24.13], [32.97, 24.53], [33.32, 24.68], [33.35, 24.75], [33.25, 25.0], [33.47, 25.53], [33.88, 25.7], [33.82, 25.82], [33.75, 25.85], [33.5, 25.75], [32.97, 25.97], [32.75, 26.5], [32.97, 27.03], [33.5, 27.25], [33.75, 27.15], [34.0, 27.25], [34.25, 27.15], [34.5, 27.25], [35.03, 27.03], [35.18, 26.68], [35.25, 26.65], [35.5, 26.75], [36.03, 26.53], [36.25, 26.0], [36.15, 25.75], [36.18, 25.68], [36.53, 25.53], [36.75, 25.0], [36.53, 24.47], [36.18, 24.32], [36.03, 23.97], [35.68, 23.82], [35.53, 23.47], [35.13, 23.3], [35.18, 23.18], [35.53, 23.03], [35.75, 22.5], [35.65, 22.25], [35.75, 22.0], [35.65, 21.75], [35.68, 21.68], [35.75, 21.65], [35.82, 21.68], [35.97, 22.03], [36.5, 22.25], [37.03, 22.03], [37.25, 21.5], [37.15, 21.25], [37.25, 21.0], [37.15, 20.75], [37.25, 20.5], [37.15, 20.25], [37.25, 20.0], [37.15, 19.75], [37.18, 19.68], [37.53, 19.53], [37.75, 19.0], [37.65, 18.75], [37.75, 18.5], [37.65, 18.25], [37.75, 18.0], [37.65, 17.75], [37.68, 17.68], [37.75, 17.65], [38.0, 17.75], [38.53, 17.53], [38.75, 17.0], [38.53, 16.47], [38.18, 16.32], [38.15, 16.25], [38.25, 16.0], [38.03, 15.47], [37.5, 15.25], [37.25, 15.35], [37.0, 15.25], [36.75, 15.35], [36.5, 15.25], [36.25, 15.35], [36.18, 15.32], [36.03, 14.97], [35.68, 14.82], [35.53, 14.47], [35.0, 14.25], [34.47, 14.47], [34.25, 15.0], [34.35, 15.25], [34.25, 15.5], [34.46, 16.0], [34.25, 16.5], [34.35, 16.75], [34.25, 17.0], [34.47, 17.53], [35.0, 17.75], [35.25, 17.65], [35.32, 17.68], [35.46, 18.0], [35.25, 18.5], [35.35, 18.75], [35.32, 18.82], [35.25, 18.85], [35.0, 18.75], [34.75, 18.85], [34.68, 18.82], [34.53, 18.47], [34.18, 18.32], [34.03, 17.97], [33.5, 17.75], [33.25, 17.85], [33.0, 17.75], [32.75, 17.85], [32.68, 17.82], [32.53, 17.47], [32.0, 17.25], [31.75, 17.35], [31.5, 17.25], [30.97, 17.47], [30.75, 18.0], [30.85, 18.25], [30.82, 18.32], [30.47, 18.47], [30.25, 19.0], [30.35, 19.25], [30.25, 19.5], [30.35, 19.75]]]]}, "2013-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.97, 17.47], [26.75, 18.0], [26.97, 18.53], [27.5, 18.75], [27.75, 18.65], [27.82, 18.68], [27.97, 19.03], [28.32, 19.18], [28.35, 19.25], [28.25, 19.5], [28.47, 20.03], [28.82, 20.18], [28.97, 20.53], [29.5, 20.75], [29.75, 20.65], [30.0, 20.75], [30.25, 20.65], [30.32, 20.68], [30.47, 21.03], [31.0, 21.25], [31.25, 21.15], [31.32, 21.18], [31.35, 21.25], [31.25, 21.5], [31.47, 22.03], [31.82, 22.18], [31.88, 22.3], [31.47, 22.47], [31.25, 23.0], [31.47, 23.53], [31.82, 23.68], [31.97, 24.03], [32.5, 24.25], [32.8, 24.13], [32.97, 24.53], [33.32, 24.68], [33.35, 24.75], [33.25, 25.0], [33.47, 25.53], [33.88, 25.7], [33.82, 25.82], [33.75, 25.85], [33.5, 25.75], [32.97, 25.97], [32.75, 26.5], [32.97, 27.03], [33.5, 27.25], [33.75, 27.15], [34.0, 27.25], [34.25, 27.15], [34.5, 27.25], [35.03, 27.03], [35.18, 26.68], [35.25, 26.65], [35.5, 26.75], [36.03, 26.53], [36.25, 26.0], [36.15, 25.75], [36.18, 25.68], [36.53, 25.53], [36.75, 25.0], [36.53, 24.47], [36.18, 24.32], [36.03, 23.97], [35.68, 23.82], [35.53, 23.47], [35.13, 23.3], [35.18, 23.18], [35.53, 23.03], [35.75, 22.5], [35.65, 22.25], [35.75, 22.0], [35.65, 21.75], [35.68, 21.68], [35.75, 21.65], [35.82, 21.68], [35.97, 22.03], [36.5, 22.25], [37.03, 22.03], [37.25, 21.5], [37.15, 21.25], [37.25, 21.0], [37.15, 20.75], [37.25, 20.5], [37.15, 20.25], [37.25, 20.0], [37.15, 19.75], [37.18, 19.68], [37.53, 19.53], [37.75, 19.0], [37.65, 18.75], [37.75, 18.5], [37.65, 18.25], [37.75, 18.0], [37.65, 17.75], [37.68, 17.68], [37.75, 17.65], [38.0, 17.75], [38.53, 17.53], [38.75, 17.0], [38.53, 16.47], [38.0, 16.25], [37.75, 16.35], [37.68, 16.32], [37.53, 15.97], [37.0, 15.75], [36.75, 15.85], [36.68, 15.82], [36.53, 15.47], [36.18, 15.32], [36.03, 14.97], [35.68, 14.82], [35.53, 14.47], [35.0, 14.25], [34.47, 14.47], [34.25, 15.0], [34.35, 15.25], [34.25, 15.5], [34.46, 16.0], [34.25, 16.5], [34.35, 16.75], [34.25, 17.0], [34.47, 17.53], [35.0, 17.75], [35.25, 17.65], [35.32, 17.68], [35.46, 18.0], [35.25, 18.5], [35.35, 18.75], [35.32, 18.82], [35.25, 18.85], [35.0, 18.75], [34.75, 18.85], [34.68, 18.82], [34.53, 18.47], [34.18, 18.32], [34.03, 17.97], [33.5, 17.75], [33.25, 17.85], [33.0, 17.75], [32.75, 17.85], [32.68, 17.82], [32.53, 17.47], [32.0, 17.25], [31.75, 17.35], [31.68, 17.32], [31.65, 17.25], [31.75, 17.0], [31.53, 16.47], [31.0, 16.25], [30.47, 16.47], [30.32, 16.82], [30.25, 16.85], [30.0, 16.75], [29.75, 16.85], [29.5, 16.75], [29.25, 16.85], [29.18, 16.82], [29.03, 16.47], [28.5, 16.25], [27.97, 16.47], [27.75, 17.0], [27.85, 17.25], [27.82, 17.32], [27.75, 17.35], [27.5, 17.25], [26.97, 17.47]]]]}, "2013-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.97, 17.47], [26.75, 18.0], [26.97, 18.53], [27.5, 18.75], [27.75, 18.65], [27.82, 18.68], [27.97, 19.03], [28.32, 19.18], [28.35, 19.25], [28.25, 19.5], [28.47, 20.03], [28.82, 20.18], [28.97, 20.53], [29.5, 20.75], [29.75, 20.65], [30.0, 20.75], [30.25, 20.65], [30.32, 20.68], [30.47, 21.03], [31.0, 21.25], [31.25, 21.15], [31.32, 21.18], [31.35, 21.25], [31.25, 21.5], [31.47, 22.03], [31.82, 22.18], [31.88, 22.3], [31.47, 22.47], [31.25, 23.0], [31.47, 23.53], [31.82, 23.68], [31.97, 24.03], [32.5, 24.25], [32.8, 24.13], [32.97, 24.53], [33.32, 24.68], [33.35, 24.75], [33.25, 25.0], [33.47, 25.53], [33.88, 25.7], [33.82, 25.82], [33.75, 25.85], [33.5, 25.75], [32.97, 25.97], [32.75, 26.5], [32.97, 27.03], [33.5, 27.25], [33.75, 27.15], [34.0, 27.25], [34.25, 27.15], [34.5, 27.25], [35.03, 27.03], [35.18, 26.68], [35.25, 26.65], [35.5, 26.75], [36.03, 26.53], [36.25, 26.0], [36.15, 25.75], [36.18, 25.68], [36.53, 25.53], [36.75, 25.0], [36.53, 24.47], [36.18, 24.32], [36.03, 23.97], [35.68, 23.82], [35.53, 23.47], [35.13, 23.3], [35.18, 23.18], [35.53, 23.03], [35.75, 22.5], [35.65, 22.25], [35.75, 22.0], [35.65, 21.75], [35.75, 21.5], [35.97, 22.03], [36.5, 22.25], [37.03, 22.03], [37.25, 21.5], [37.15, 21.25], [37.25, 21.0], [37.15, 20.75], [37.25, 20.5], [37.15, 20.25], [37.25, 20.0], [37.15, 19.75], [37.18, 19.68], [37.53, 19.53], [37.75, 19.0], [37.65, 18.75], [37.75, 18.5], [37.65, 18.25], [37.75, 18.0], [37.65, 17.75], [37.75, 17.5], [37.53, 16.97], [37.0, 16.75], [36.47, 16.97], [36.32, 17.32], [35.97, 17.47], [35.82, 17.82], [35.47, 17.97], [35.25, 18.5], [35.35, 18.75], [35.32, 18.82], [35.25, 18.85], [35.0, 18.75], [34.75, 18.85], [34.68, 18.82], [34.53, 18.47], [34.18, 18.32], [34.03, 17.97], [33.5, 17.75], [33.25, 17.85], [33.0, 17.75], [32.75, 17.85], [32.68, 17.82], [32.53, 17.47], [32.0, 17.25], [31.75, 17.35], [31.68, 17.32], [31.65, 17.25], [31.75, 17.0], [31.53, 16.47], [31.0, 16.25], [30.47, 16.47], [30.32, 16.82], [30.25, 16.85], [30.0, 16.75], [29.75, 16.85], [29.5, 16.75], [29.25, 16.85], [29.18, 16.82], [29.03, 16.47], [28.5, 16.25], [27.97, 16.47], [27.75, 17.0], [27.85, 17.25], [27.82, 17.32], [27.75, 17.35], [27.5, 17.25], [26.97, 17.47]], [[35.65, 21.25], [35.7, 21.13], [35.82, 21.18], [35.85, 21.25], [35.75, 21.5], [35.65, 21.25]]]]}, "2013-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.75, 18.0], [26.97, 18.53], [27.5, 18.75], [27.75, 18.65], [27.82, 18.68], [27.97, 19.03], [28.32, 19.18], [28.35, 19.25], [28.25, 19.5], [28.47, 20.03], [28.82, 20.18], [28.97, 20.53], [29.5, 20.75], [29.75, 20.65], [30.0, 20.75], [30.25, 20.65], [30.32, 20.68], [30.47, 21.03], [31.0, 21.25], [31.25, 21.15], [31.5, 21.25], [31.75, 21.15], [32.0, 21.25], [32.25, 21.15], [32.5, 21.25], [33.03, 21.03], [33.18, 20.68], [33.53, 20.53], [33.75, 20.0], [33.65, 19.75], [33.75, 19.5], [33.65, 19.25], [33.75, 19.0], [33.65, 18.75], [33.75, 18.5], [33.53, 17.97], [33.0, 17.75], [32.75, 17.85], [32.68, 17.82], [32.53, 17.47], [32.0, 17.25], [31.75, 17.35], [31.68, 17.32], [31.65, 17.25], [31.75, 17.0], [31.53, 16.47], [31.0, 16.25], [30.47, 16.47], [30.32, 16.82], [30.25, 16.85], [30.0, 16.75], [29.75, 16.85], [29.5, 16.75], [29.25, 16.85], [29.18, 16.82], [29.03, 16.47], [28.5, 16.25], [27.97, 16.47], [27.75, 17.0], [27.85, 17.25], [27.82, 17.32], [27.75, 17.35], [27.5, 17.25], [26.97, 17.47], [26.75, 18.0]]], [[[37.03, 19.53], [37.25, 19.0], [37.15, 18.75], [37.25, 18.5], [37.03, 17.97], [36.5, 17.75], [36.25, 17.85], [36.0, 17.75], [35.47, 17.97], [35.25, 18.5], [35.47, 19.03], [35.82, 19.18], [35.97, 19.53], [36.5, 19.75], [37.03, 19.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.1459639462567}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.105838371176565}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [36.21787452947649, 36.47606596790928, 36.45471369324457, 35.41761866203569, 36.00578888280927, 36.729658984586194, 36.18070184900961, 37.55647219868723]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [37.449451341455756, 37.07599926434068, 37.13239782568928, 37.8927075451345, 38.81666034764862, 39.701110360357575, 39.43744113683789, 39.61329994205539]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.1728509602930046, 2.6715862530072627, 2.6369695321894926, 2.369628134808046, 3.085956918555742, 3.509005548630398, 2.9821660726249934, 3.300093057582064]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.467789547147788, 3.414468221924949, 3.5415573988958613, 2.9696979325875645, 4.163759245576614, 5.1459639462567, 4.228721918396445, 4.2830049220513615]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3493837522377328, 1.7385455488023303, 1.7258117875377992, 1.438937926524197, 1.7333346117439974, 1.9154918743298812, 1.5899150555777608, 1.658092820840831]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4809639315884482, 2.2831527473979465, 2.3581701358165734, 2.124332783362935, 2.308114011788922, 3.089875303403837, 2.4641893829487302, 2.0781999254462145]}}