{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:05.721207", "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": "2015-May-23_to_2015-May-28_343.5_14.0"}, "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": 2015050002448}, "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 23 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 28 2015"}, "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": 69113.26577211326}, "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": ["Gambia", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "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": ["North Atlantic Ocean"]}, "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": 14.0}, "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": 343.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "343.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 341.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 345.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.0, 14.75], [-16.47, 14.53], [-16.25, 14.0], [-16.47, 13.47], [-17.0, 13.25], [-17.53, 13.47], [-17.75, 14.0], [-17.53, 14.53], [-17.0, 14.75]]]]}, "2015-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.75, 14.0], [-17.53, 14.53], [-17.0, 14.75], [-16.47, 14.53], [-16.32, 14.18], [-15.97, 14.03], [-15.75, 13.5], [-15.97, 12.97], [-16.5, 12.75], [-17.03, 12.97], [-17.18, 13.32], [-17.53, 13.47], [-17.75, 14.0]]]]}, "2015-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.53, 15.53], [-18.0, 15.75], [-17.47, 15.53], [-17.32, 15.18], [-16.97, 15.03], [-16.82, 14.68], [-16.75, 14.65], [-16.5, 14.75], [-15.97, 14.53], [-15.75, 14.0], [-15.85, 13.75], [-15.75, 13.5], [-15.97, 12.97], [-16.32, 12.82], [-16.47, 12.47], [-17.0, 12.25], [-17.53, 12.47], [-17.75, 13.0], [-17.65, 13.25], [-17.68, 13.32], [-18.03, 13.47], [-18.18, 13.82], [-18.53, 13.97], [-18.75, 14.5], [-18.65, 14.75], [-18.75, 15.0], [-18.53, 15.53]]]]}, "2015-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": 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3.138396732216961}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.9585617930724308}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.787232626207924, 25.910786884045365, 25.604230837955754, 28.450745036151886, 28.837506531134466, 30.20450836322459]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.787232626207924, 27.18264854879999, 29.228477028082864, 35.052913372471096, 35.60035039574507, 34.936916078410945]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7783270948887662, 1.5432077421925499, 1.7051093571273366, 1.9194599242649653, 2.1028193498803565, 2.0264078901555385]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m 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