{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:02.115037", "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": "2014-Dec-29_to_2014-Dec-31_21.5_18.5"}, "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": 2014120002902}, "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": "December 29 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 31 2014"}, "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": 100532.03237016847}, "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": 18.5}, "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": 21.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "21.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 18.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.47, 16.97], [18.25, 17.5], [18.47, 18.03], [19.0, 18.25], 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19.53], [21.0, 19.75], [21.25, 19.65], [21.5, 19.75], [21.75, 19.65], [22.0, 19.75], [22.53, 19.53], [22.75, 19.0], [22.54, 18.5], [22.75, 18.0], [22.65, 17.75], [22.75, 17.5], [22.65, 17.25], [22.75, 17.0], [22.53, 16.47], [22.18, 16.32], [22.15, 16.25], [22.25, 16.0], [22.03, 15.47], [21.68, 15.32], [21.65, 15.25], [21.75, 15.0], [21.65, 14.75], [21.75, 14.5], [21.53, 13.97], [21.0, 13.75], [20.75, 13.85], [20.5, 13.75], [19.97, 13.97], [19.82, 14.32], [19.47, 14.47], [19.25, 15.0], [19.35, 15.25], [19.25, 15.5], [19.35, 15.75], [19.25, 16.0], [19.35, 16.25], [19.25, 16.5], [19.38, 16.8], [19.25, 16.85], [19.0, 16.75], [18.47, 16.97]]]]}, "2014-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.47, 16.97], [18.25, 17.5], [18.47, 18.03], [19.0, 18.25], [19.25, 18.15], [19.32, 18.18], [19.47, 18.53], [19.82, 18.68], [19.97, 19.03], [20.32, 19.18], [20.47, 19.53], [21.0, 19.75], [21.25, 19.65], [21.5, 19.75], [21.75, 19.65], [22.0, 19.75], [22.53, 19.53], [22.75, 19.0], [22.54, 18.5], [22.75, 18.0], [22.65, 17.75], [22.75, 17.5], [22.65, 17.25], [22.75, 17.0], [22.53, 16.47], [22.18, 16.32], [22.15, 16.25], [22.25, 16.0], [22.03, 15.47], [21.68, 15.32], [21.65, 15.25], [21.75, 15.0], [21.65, 14.75], [21.75, 14.5], [21.53, 13.97], [21.0, 13.75], [20.75, 13.85], [20.5, 13.75], [19.97, 13.97], [19.82, 14.32], [19.47, 14.47], [19.25, 15.0], [19.35, 15.25], [19.25, 15.5], [19.35, 15.75], [19.25, 16.0], [19.35, 16.25], [19.25, 16.5], [19.38, 16.8], [19.25, 16.85], [19.0, 16.75], [18.47, 16.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.330792028362396}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.7898772998772814}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.578162647820477, 23.175865629979057, 23.115320068561743]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.11646331332605, 26.45969219825082, 26.8711521680317]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.4774256698390955, 3.9955040668038198, 3.8967021629889285]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.245286599870781, 5.330792028362396, 5.230648077359604]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6109719384336538, 1.7645198182960617, 1.636351436696215]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8601311267471257, 2.112491302540012, 1.9502602829972633]}}