{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:31.504631", "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": "2016-May-22_to_2016-May-25_18.0_17.0"}, "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": 2016050002181}, "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 22 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 25 2016"}, "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": 76708.29271955931}, "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": ["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": 17.0}, "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": 18.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 15.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 20.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, 18.0], [15.47, 18.53], [16.0, 18.75], [16.25, 18.65], 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[19.0, 18.75], [19.5, 18.54], [20.0, 18.75], [20.25, 18.65], [20.5, 18.75], [21.03, 18.53], [21.25, 18.0], [21.03, 17.47], [20.5, 17.25], [20.25, 17.35], [20.18, 17.32], [20.03, 16.97], [19.5, 16.75], [19.25, 16.85], [19.18, 16.82], [19.03, 16.47], [18.68, 16.32], [18.65, 16.25], [18.75, 16.0], [18.53, 15.47], [18.0, 15.25], [17.75, 15.35], [17.5, 15.25], [16.97, 15.47], [16.82, 15.82], [16.47, 15.97], [16.32, 16.32], [15.97, 16.47], [15.75, 17.0], [15.85, 17.25], [15.82, 17.32], [15.47, 17.47], [15.25, 18.0]]]]}, "2016-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, 18.0], [15.47, 18.53], [16.0, 18.75], [16.25, 18.65], [16.5, 18.75], [16.75, 18.65], [17.0, 18.75], [17.25, 18.65], [17.5, 18.75], [17.75, 18.65], [18.0, 18.75], [18.25, 18.65], [18.5, 18.75], [18.75, 18.65], [19.0, 18.75], [19.5, 18.54], [20.0, 18.75], [20.25, 18.65], [20.5, 18.75], [21.03, 18.53], [21.25, 18.0], [21.03, 17.47], [20.5, 17.25], [20.25, 17.35], [20.18, 17.32], [20.03, 16.97], [19.5, 16.75], [19.25, 16.85], [19.18, 16.82], [19.03, 16.47], [18.68, 16.32], [18.65, 16.25], [18.75, 16.0], [18.53, 15.47], [18.0, 15.25], [17.75, 15.35], [17.5, 15.25], [16.97, 15.47], [16.82, 15.82], [16.47, 15.97], [16.32, 16.32], [15.97, 16.47], [15.75, 17.0], [15.85, 17.25], [15.82, 17.32], [15.47, 17.47], [15.25, 18.0]]]]}, "2016-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.47, 16.47], [17.25, 17.0], [17.47, 17.53], [18.0, 17.75], [18.25, 17.65], [18.5, 17.75], [19.03, 17.53], [19.25, 17.0], [19.03, 16.47], [18.5, 16.25], [18.25, 16.35], [18.0, 16.25], [17.47, 16.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.1949708283916607}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.243785883091414}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [36.68099742947243, 37.10659040001559, 37.04990458562048, 37.20301789950304]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [37.43665471824022, 38.353358040637715, 38.15302993332949, 37.27780388730656]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.113428351907089, 2.387747589434405, 2.250850145492205, 1.9099174292263115]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.5609461891552883, 3.1949708283916607, 2.9854795298123804, 1.9175594628157455]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6211092428604053, 1.8371212568711472, 1.8212286788662162, 1.541999909097969]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9435467643276254, 2.3139167707274186, 2.3878339896496943, 1.5464282694365745]}}