{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:43.505643", "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": "2024-Aug-18_to_2024-Aug-22_345.5_25.0"}, "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": 2024080002175}, "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": "August 18 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 22 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 91896.38350955895}, "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": ["Mauritania"]}, "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": ["Atlantic Ocean", "Gaat Udei Seita"]}, "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": 25.0}, "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": 345.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "345.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 344.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 349.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-15.18, 25.68], [-15.15, 25.75], [-15.25, 26.0], [-15.03, 26.53], [-14.68, 26.68], [-14.53, 27.03], [-14.18, 27.18], [-14.03, 27.53], [-13.5, 27.75], [-13.25, 27.65], [-13.0, 27.75], [-12.75, 27.65], [-12.5, 27.75], [-11.97, 27.53], [-11.82, 27.18], [-11.75, 27.15], [-11.5, 27.25], [-11.25, 27.15], [-11.0, 27.25], [-10.47, 27.03], [-10.25, 26.5], [-10.47, 25.97], [-10.82, 25.82], [-10.97, 25.47], [-11.32, 25.32], [-11.47, 24.97], [-12.0, 24.75], [-12.25, 24.85], [-12.32, 24.82], [-12.47, 24.47], [-12.82, 24.32], [-12.97, 23.97], [-13.5, 23.75], [-13.75, 23.85], [-14.0, 23.75], [-14.25, 23.85], [-14.5, 23.75], [-14.75, 23.85], [-14.82, 23.82], [-14.97, 23.47], [-15.5, 23.25], [-16.03, 23.47], [-16.25, 24.0], [-16.03, 24.53], [-15.68, 24.68], [-15.65, 24.75], [-15.75, 25.0], [-15.53, 25.53], [-15.18, 25.68]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-08-18T11:30:00.000000000": {"type": 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"anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.761143594447162, 7.85898871831796, 6.361001370623626, 7.224630123596171, 5.06758921062891]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3821694750107378, 2.4048403293902005, 1.8001729966219435, 2.0738605440172457, 1.7066417806790122]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4309970199525976, 3.407136538419234, 2.505214760615246, 2.7346485975318187, 2.0278415710145556]}}