{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:30.497710", "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": "2011-May-07_to_2011-May-10_20.0_15.5"}, "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": 2011050001860}, "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 07 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 10 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 53581.09455875949}, "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": ["Chad"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "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": 15.5}, "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": 20.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 18.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 21.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.47, 18.03], [21.0, 18.25], [21.53, 18.03], [21.75, 17.5], [21.65, 17.25], [21.75, 17.0], [21.53, 16.47], [21.0, 16.25], [20.47, 16.47], [20.25, 17.0], [20.35, 17.25], [20.25, 17.5], [20.47, 18.03]]]]}, "2011-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.25, 15.0], [18.35, 15.25], [18.25, 15.5], [18.35, 15.75], [18.25, 16.0], [18.47, 16.53], [19.0, 16.75], [19.25, 16.65], [19.5, 16.75], [19.75, 16.65], [20.0, 16.75], [20.25, 16.65], [20.32, 16.68], [20.35, 16.75], [20.25, 17.0], [20.35, 17.25], [20.25, 17.5], [20.47, 18.03], [21.0, 18.25], [21.53, 18.03], [21.75, 17.5], [21.65, 17.25], [21.75, 17.0], [21.65, 16.75], [21.75, 16.5], [21.63, 16.2], [22.03, 16.03], [22.25, 15.5], [22.03, 14.97], [21.5, 14.75], [21.25, 14.85], [21.0, 14.75], [20.75, 14.85], [20.5, 14.75], [20.25, 14.85], [20.18, 14.82], [20.15, 14.75], [20.25, 14.5], [20.03, 13.97], [19.5, 13.75], [19.25, 13.85], [19.18, 13.82], [19.03, 13.47], [18.5, 13.25], [17.97, 13.47], [17.75, 14.0], [17.97, 14.53], [18.32, 14.68], [18.35, 14.75], [18.25, 15.0]]]]}, "2011-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.25, 15.0], [18.35, 15.25], [18.25, 15.5], [18.35, 15.75], [18.25, 16.0], [18.47, 16.53], [19.0, 16.75], [19.25, 16.65], [19.5, 16.75], [19.75, 16.65], [20.0, 16.75], [20.25, 16.65], [20.32, 16.68], [20.35, 16.75], [20.25, 17.0], [20.35, 17.25], [20.25, 17.5], [20.47, 18.03], [21.0, 18.25], [21.53, 18.03], [21.75, 17.5], [21.65, 17.25], [21.75, 17.0], [21.65, 16.75], [21.75, 16.5], [21.63, 16.2], [22.03, 16.03], [22.25, 15.5], [22.03, 14.97], [21.5, 14.75], [21.25, 14.85], [21.0, 14.75], [20.75, 14.85], [20.5, 14.75], [20.25, 14.85], [20.18, 14.82], [20.15, 14.75], [20.25, 14.5], [20.03, 13.97], [19.5, 13.75], [19.25, 13.85], [19.18, 13.82], [19.03, 13.47], [18.5, 13.25], [17.97, 13.47], [17.75, 14.0], [17.97, 14.53], [18.32, 14.68], [18.35, 14.75], [18.25, 15.0]]]]}, "2011-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.25, 15.0], [18.35, 15.25], [18.25, 15.5], [18.35, 15.75], [18.25, 16.0], [18.47, 16.53], [19.0, 16.75], [19.25, 16.65], [19.5, 16.75], [19.75, 16.65], [20.0, 16.75], [20.25, 16.65], [20.32, 16.68], [20.47, 17.03], [21.0, 17.25], [21.53, 17.03], [21.75, 16.5], [21.63, 16.2], [22.03, 16.03], [22.25, 15.5], [22.03, 14.97], [21.5, 14.75], [21.25, 14.85], [21.0, 14.75], [20.75, 14.85], [20.5, 14.75], [20.25, 14.85], [20.18, 14.82], [20.15, 14.75], [20.25, 14.5], [20.03, 13.97], [19.5, 13.75], [19.25, 13.85], [19.18, 13.82], [19.03, 13.47], [18.5, 13.25], [17.97, 13.47], [17.75, 14.0], [17.97, 14.53], [18.32, 14.68], [18.35, 14.75], [18.25, 15.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.064622787459598}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.369937459683234}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [36.02595233265964, 36.35808468573356, 36.509412846388216, 36.07940611140043]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.07036735325073, 37.346786714238704, 37.55973764554352, 36.77111981387117]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.676568329616998, 2.3821678365433296, 2.551122331912628, 2.114016445715837]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.919171899024775, 2.7048083659664144, 3.064622787459598, 2.3968312679135124]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2737132365106438, 1.4458347789677086, 1.5243179406113898, 1.3219287144434353]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3114426666556886, 1.9193517956866601, 1.8288397690449167, 1.430075210258246]}}