{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:12.265213", "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": "2022-May-28_to_2022-May-30_6.0_8.5"}, "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": 2022050002758}, "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 28 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 30 2022"}, "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": 55055.955642617155}, "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": ["Nigeria"]}, "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": 8.5}, "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": 6.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "6.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 4.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 8.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.47, 9.53], [5.0, 9.75], [5.25, 9.65], [5.32, 9.68], [5.47, 10.03], [6.0, 10.25], [6.53, 10.03], [6.68, 9.68], [7.03, 9.53], [7.18, 9.18], [7.53, 9.03], [7.68, 8.68], [8.03, 8.53], [8.18, 8.18], [8.53, 8.03], [8.75, 7.5], [8.53, 6.97], [8.0, 6.75], [7.75, 6.85], [7.5, 6.75], [7.25, 6.85], [7.18, 6.82], [7.03, 6.47], [6.5, 6.25], [5.97, 6.47], [5.75, 7.0], [5.85, 7.25], [5.75, 7.5], [5.85, 7.75], [5.82, 7.82], [5.75, 7.85], [5.5, 7.75], [5.25, 7.85], [5.0, 7.75], [4.47, 7.97], [4.25, 8.5], [4.35, 8.75], [4.25, 9.0], [4.47, 9.53]]]]}, "2022-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.47, 9.53], [5.0, 9.75], [5.25, 9.65], [5.32, 9.68], [5.47, 10.03], [6.0, 10.25], [6.53, 10.03], [6.68, 9.68], [7.03, 9.53], [7.18, 9.18], [7.53, 9.03], [7.68, 8.68], [8.03, 8.53], [8.18, 8.18], [8.53, 8.03], [8.75, 7.5], [8.53, 6.97], [8.0, 6.75], [7.75, 6.85], [7.5, 6.75], [7.25, 6.85], [7.18, 6.82], [7.03, 6.47], [6.5, 6.25], [5.97, 6.47], [5.75, 7.0], [5.85, 7.25], [5.75, 7.5], [5.85, 7.75], [5.82, 7.82], [5.75, 7.85], [5.5, 7.75], [5.25, 7.85], [5.0, 7.75], [4.47, 7.97], [4.25, 8.5], [4.35, 8.75], [4.25, 9.0], [4.47, 9.53]]]]}, "2022-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.47, 9.53], [5.0, 9.75], [5.25, 9.65], [5.32, 9.68], [5.47, 10.03], [6.0, 10.25], [6.53, 10.03], [6.68, 9.68], [7.03, 9.53], [7.18, 9.18], [7.53, 9.03], [7.68, 8.68], [8.03, 8.53], [8.18, 8.18], [8.53, 8.03], [8.75, 7.5], [8.53, 6.97], [8.0, 6.75], [7.75, 6.85], [7.5, 6.75], [7.25, 6.85], [7.18, 6.82], [7.03, 6.47], [6.5, 6.25], [5.97, 6.47], [5.75, 7.0], [5.85, 7.25], [5.75, 7.5], [5.85, 7.75], [5.82, 7.82], [5.75, 7.85], [5.5, 7.75], [5.25, 7.85], [5.0, 7.75], [4.47, 7.97], [4.25, 8.5], [4.35, 8.75], [4.25, 9.0], [4.47, 9.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.5287763478049214}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.9050012921986248}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.42660170480491, 29.691954864207275, 29.6767055033759]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.200235806990293, 31.408371508031507, 31.371258928378552]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6447699811668979, 2.0043149570799255, 2.065918938349051]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.32123056458488, 2.4595246792557077, 2.5287763478049214]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6347883847774742, 2.0304047060410553, 2.098803515617605]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.993062046912254, 2.393502087589834, 2.41467096141039]}}