{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:16.252937", "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": "2011-Dec-29_to_2012-Jan-01_38.0_15.0"}, "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": 2011120002823}, "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": "December 29 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 01 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 110131.34464185004}, "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": ["Eritrea", "Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "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": []}, "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": 15.0}, "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": 38.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "38.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 33.25}, "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": 13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.97, 14.47], [35.75, 15.0], [35.97, 15.53], [36.5, 15.75], [36.75, 15.65], [37.0, 15.75], [37.5, 15.54], [38.0, 15.75], [38.53, 15.53], [38.75, 15.0], [38.53, 14.47], [38.0, 14.25], [37.5, 14.46], [37.0, 14.25], [36.75, 14.35], [36.5, 14.25], [35.97, 14.47]]]]}, "2011-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.85, 14.25], [32.75, 14.5], [32.97, 15.03], [33.5, 15.25], [33.75, 15.15], [33.82, 15.18], [33.85, 15.25], [33.75, 15.5], [33.85, 15.75], [33.75, 16.0], [33.97, 16.53], [34.32, 16.68], [34.35, 16.75], [34.25, 17.0], [34.35, 17.25], [34.25, 17.5], [34.47, 18.03], [34.82, 18.18], [34.85, 18.25], [34.75, 18.5], [34.97, 19.03], [35.5, 19.25], [36.03, 19.03], [36.25, 18.5], [36.15, 18.25], [36.25, 18.0], [36.15, 17.75], [36.25, 17.5], [36.15, 17.25], [36.25, 17.0], [36.15, 16.75], [36.18, 16.68], [36.25, 16.65], [36.5, 16.75], [36.75, 16.65], [37.0, 16.75], [37.25, 16.65], [37.5, 16.75], [38.03, 16.53], [38.25, 16.0], [38.13, 15.7], [38.53, 15.53], [38.75, 15.0], [38.53, 14.47], [38.0, 14.25], [37.75, 14.35], [37.5, 14.25], [37.25, 14.35], [37.0, 14.25], [36.75, 14.35], [36.68, 14.32], [36.53, 13.97], [36.0, 13.75], [35.5, 13.96], [35.0, 13.75], [34.75, 13.85], [34.68, 13.82], [34.53, 13.47], [34.18, 13.32], [34.03, 12.97], [33.5, 12.75], [32.97, 12.97], [32.75, 13.5], [32.85, 13.75], [32.75, 14.0], [32.85, 14.25]]]]}, "2011-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.85, 14.25], [32.75, 14.5], [32.97, 15.03], [33.5, 15.25], [33.75, 15.15], [33.82, 15.18], [33.85, 15.25], [33.75, 15.5], [33.85, 15.75], [33.75, 16.0], [33.97, 16.53], [34.32, 16.68], [34.35, 16.75], [34.25, 17.0], [34.35, 17.25], [34.25, 17.5], [34.47, 18.03], [34.82, 18.18], [34.85, 18.25], [34.75, 18.5], [34.97, 19.03], [35.5, 19.25], [36.03, 19.03], [36.25, 18.5], [36.15, 18.25], [36.25, 18.0], [36.15, 17.75], [36.25, 17.5], [36.15, 17.25], [36.25, 17.0], [36.15, 16.75], [36.18, 16.68], [36.25, 16.65], [36.5, 16.75], [36.75, 16.65], [37.0, 16.75], [37.25, 16.65], [37.5, 16.75], [38.03, 16.53], [38.25, 16.0], [38.13, 15.7], [38.53, 15.53], [38.75, 15.0], [38.53, 14.47], [38.0, 14.25], [37.75, 14.35], [37.5, 14.25], [37.25, 14.35], [37.0, 14.25], [36.75, 14.35], [36.68, 14.32], [36.53, 13.97], [36.0, 13.75], [35.5, 13.96], [35.0, 13.75], [34.75, 13.85], [34.68, 13.82], [34.53, 13.47], [34.18, 13.32], [34.03, 12.97], [33.5, 12.75], [32.97, 12.97], [32.75, 13.5], [32.85, 13.75], [32.75, 14.0], [32.85, 14.25]]]]}, "2012-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.85, 14.25], [32.75, 14.5], [32.97, 15.03], [33.5, 15.25], [33.75, 15.15], [33.82, 15.18], [33.85, 15.25], [33.75, 15.5], [33.85, 15.75], [33.75, 16.0], [33.97, 16.53], [34.32, 16.68], [34.35, 16.75], [34.25, 17.0], [34.35, 17.25], [34.25, 17.5], [34.47, 18.03], [34.82, 18.18], [34.85, 18.25], [34.75, 18.5], [34.97, 19.03], [35.5, 19.25], [36.03, 19.03], [36.25, 18.5], [36.15, 18.25], [36.25, 18.0], [36.15, 17.75], [36.25, 17.5], [36.15, 17.25], [36.25, 17.0], [36.15, 16.75], [36.18, 16.68], 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28.002708671302628]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.336314859565334, 30.472578348316517, 29.596297942197964, 29.48069739973397]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.087861253914165, 2.7961482278176315, 2.8522769382370687, 2.5838523773873403]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.5366134354628116, 4.13361554489984, 3.6731218593755557, 3.0246457239299502]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2337350791838098, 1.4241580352924805, 1.45314096826652, 1.299073831314752]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2870741672781179, 2.166447030541878, 2.0481188970449664, 1.5821082126770447]}}