{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:47.632213", "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-30_to_2017-May-02_351.0_7.0"}, "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": 2017040002849}, "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 30 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 02 2017"}, "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": 70558.32100951616}, "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": ["C\u00f4te d'Ivoire", "Guinea", "Liberia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-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": 7.0}, "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": 351.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "351.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 348.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 7.0], [-11.53, 7.53], [-11.0, 7.75], [-10.75, 7.65], [-10.68, 7.68], [-10.53, 8.03], [-10.18, 8.18], [-10.15, 8.25], [-10.25, 8.5], [-10.03, 9.03], [-9.5, 9.25], [-9.25, 9.15], [-9.0, 9.25], [-8.47, 9.03], [-8.3, 8.62], [-8.0, 8.75], [-7.47, 8.53], [-7.25, 8.0], [-7.47, 7.47], [-7.82, 7.32], [-7.85, 7.25], [-7.75, 7.0], [-7.85, 6.75], [-7.75, 6.5], [-7.97, 5.97], [-8.32, 5.82], [-8.47, 5.47], [-8.82, 5.32], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-11.03, 5.97], [-11.18, 6.32], [-11.53, 6.47], [-11.75, 7.0]]]]}, "2017-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 7.0], [-11.53, 7.53], [-11.0, 7.75], [-10.75, 7.65], [-10.68, 7.68], [-10.53, 8.03], [-10.18, 8.18], [-10.15, 8.25], [-10.25, 8.5], [-10.03, 9.03], [-9.5, 9.25], [-9.25, 9.15], [-9.0, 9.25], [-8.47, 9.03], [-8.3, 8.62], [-8.0, 8.75], [-7.47, 8.53], [-7.25, 8.0], [-7.47, 7.47], [-7.82, 7.32], [-7.85, 7.25], [-7.75, 7.0], [-7.85, 6.75], [-7.75, 6.5], [-7.97, 5.97], [-8.32, 5.82], [-8.47, 5.47], [-8.82, 5.32], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-11.03, 5.97], [-11.18, 6.32], [-11.53, 6.47], [-11.75, 7.0]]]]}, "2017-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 7.0], [-11.53, 7.53], [-11.0, 7.75], [-10.75, 7.65], [-10.68, 7.68], [-10.53, 8.03], [-10.18, 8.18], [-10.15, 8.25], [-10.25, 8.5], [-10.03, 9.03], [-9.5, 9.25], [-9.25, 9.15], [-9.0, 9.25], [-8.47, 9.03], [-8.3, 8.62], [-8.0, 8.75], [-7.47, 8.53], [-7.25, 8.0], [-7.47, 7.47], [-7.82, 7.32], [-7.85, 7.25], [-7.75, 7.0], [-7.85, 6.75], [-7.75, 6.5], [-7.97, 5.97], [-8.32, 5.82], [-8.47, 5.47], [-8.82, 5.32], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-11.03, 5.97], [-11.18, 6.32], [-11.53, 6.47], [-11.75, 7.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.2594967257493863}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.3750485422379763}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.242008960479836, 27.049635850552818, 26.977258355684967]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.067562348455397, 27.98488774333606, 27.996099914194076]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5016410908435576, 1.3366792671201893, 1.2868252687501822]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2594967257493863, 1.7087538347194595, 1.7520164462396792]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.032525582210962, 1.8487319018182744, 1.7814322948488195]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.7245443530530453, 2.2369471290287777, 2.2954389484356814]}}