{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:45.145154", "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": "2017-Apr-19_to_2017-Apr-24_41.5_-1.5"}, "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": 2017040002195}, "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": "April 19 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 24 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 74176.92450989416}, "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": ["Kenya", "Somalia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-Africa"]}, "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": -1.5}, "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": 41.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "41.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 39.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 42.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -2.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 1.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.35, 0.25], [39.25, 0.5], [39.47, 1.03], [40.0, 1.25], [40.25, 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-0.25], [39.32, -0.18], [38.97, -0.03], [38.75, 0.5]]]]}, "2017-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.75, 0.5], [38.97, 1.03], [39.5, 1.25], [39.75, 1.15], [39.82, 1.18], [39.97, 1.53], [40.5, 1.75], [41.03, 1.53], [41.18, 1.18], [41.53, 1.03], [41.68, 0.68], [41.75, 0.65], [42.0, 0.75], [42.53, 0.53], [42.75, 0.0], [42.65, -0.25], [42.75, -0.5], [42.53, -1.03], [42.13, -1.2], [42.25, -1.5], [42.03, -2.03], [41.5, -2.25], [41.25, -2.15], [41.18, -2.18], [41.03, -2.53], [40.5, -2.75], [39.97, -2.53], [39.75, -2.0], [39.85, -1.75], [39.75, -1.5], [39.85, -1.25], [39.82, -1.18], [39.47, -1.03], [39.25, -0.5], [39.35, -0.25], [39.32, -0.18], [38.97, -0.03], [38.75, 0.5]]]]}, "2017-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.75, 0.5], [38.97, 1.03], [39.32, 1.18], [39.47, 1.53], [40.0, 1.75], [40.25, 1.65], [40.5, 1.75], [40.75, 1.65], [41.0, 1.75], [41.53, 1.53], [41.75, 1.0], [41.65, 0.75], [41.68, 0.68], [41.75, 0.65], 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1.7317022081643105}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.06201224114278, 30.987740581505363, 30.907698981204874, 30.997821995554432, 30.982361459625622, 31.056554223446028]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.38849192571644, 31.905521668527797, 32.15112257119188, 32.03920517629433, 32.07300201336744, 32.039442624798426]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8499630011415178, 1.754863006180559, 1.6119007764885287, 1.7439937150851417, 1.7439710966779982, 1.7461208620301]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.436869974798583, 2.020267605730851, 2.128977484197719, 2.019697636284832, 2.169338685226819, 2.138583108428861]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8025820313499048, 1.670165886592457, 1.4566076086566548, 1.5121239518482656, 1.5059520986304493, 1.4826390104915603]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1725302434414306, 1.9723911046518035, 1.7666632911242848, 1.8930632978352975, 1.941056426163548, 1.699852953922545]}}