{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:56:19.001165", "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": "2025-Jul-11_to_2025-Jul-13_351.5_20.0"}, "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": 2025070001915}, "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": "July 11 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 13 2025"}, "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": 72347.44432601905}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": 20.0}, "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": 351.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "351.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 349.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.25, 20.5], [-11.03, 21.03], [-10.5, 21.25], [-10.25, 21.15], [-10.18, 21.18], [-10.03, 21.53], [-9.68, 21.68], [-9.53, 22.03], [-9.18, 22.18], [-9.03, 22.53], [-8.5, 22.75], [-8.25, 22.65], [-8.0, 22.75], [-7.47, 22.53], [-7.32, 22.18], [-6.97, 22.03], [-6.75, 21.5], [-6.97, 20.97], [-7.32, 20.82], [-7.35, 20.75], [-7.25, 20.5], [-7.47, 19.97], [-7.82, 19.82], [-7.85, 19.75], [-7.75, 19.5], [-7.97, 18.97], [-8.5, 18.75], [-8.75, 18.85], [-8.82, 18.82], [-8.97, 18.47], [-9.5, 18.25], [-10.03, 18.47], [-10.18, 18.82], [-10.53, 18.97], [-10.75, 19.5], [-10.65, 19.75], [-10.68, 19.82], [-11.03, 19.97], [-11.25, 20.5]]]]}, "2025-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.25, 20.5], [-11.03, 21.03], [-10.5, 21.25], [-10.25, 21.15], [-10.18, 21.18], [-10.03, 21.53], [-9.68, 21.68], [-9.53, 22.03], [-9.18, 22.18], [-9.03, 22.53], [-8.5, 22.75], [-8.25, 22.65], [-8.0, 22.75], [-7.47, 22.53], [-7.32, 22.18], [-6.97, 22.03], [-6.75, 21.5], [-6.97, 20.97], [-7.32, 20.82], [-7.35, 20.75], [-7.25, 20.5], [-7.47, 19.97], [-7.82, 19.82], [-7.85, 19.75], [-7.75, 19.5], [-7.97, 18.97], [-8.5, 18.75], [-8.75, 18.85], [-8.82, 18.82], [-8.97, 18.47], [-9.5, 18.25], [-10.03, 18.47], [-10.18, 18.82], [-10.53, 18.97], [-10.75, 19.5], [-10.65, 19.75], [-10.68, 19.82], [-11.03, 19.97], [-11.25, 20.5]]]]}, "2025-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.25, 20.5], [-11.03, 21.03], [-10.5, 21.25], [-10.25, 21.15], [-10.18, 21.18], [-10.03, 21.53], [-9.68, 21.68], [-9.53, 22.03], [-9.18, 22.18], [-9.03, 22.53], [-8.5, 22.75], [-8.25, 22.65], [-8.0, 22.75], [-7.47, 22.53], [-7.32, 22.18], [-6.97, 22.03], [-6.75, 21.5], [-6.97, 20.97], [-7.32, 20.82], [-7.35, 20.75], [-7.25, 20.5], [-7.47, 19.97], [-7.82, 19.82], [-7.85, 19.75], [-7.75, 19.5], [-7.97, 18.97], [-8.5, 18.75], [-8.75, 18.85], [-8.82, 18.82], [-8.97, 18.47], [-9.5, 18.25], [-10.03, 18.47], [-10.18, 18.82], [-10.53, 18.97], [-10.75, 19.5], [-10.65, 19.75], [-10.68, 19.82], [-11.03, 19.97], [-11.25, 20.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.827124218206393}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.629566432845173}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.422974802653016, 37.919450378417935, 37.27366806030278]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [39.10945917765304, 40.019385274251306, 38.47996037801107]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.546494841899746, 3.0004600944713253, 2.3417443621644476]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.2241731018237942, 3.827124218206393, 3.0714831918928667]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.786885709521739, 2.136004896190889, 1.6646362226263582]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.52067143925696, 2.6273086565179637, 2.264507012543792]}}