{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:15.126794", "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-Aug-28_to_2014-Aug-31_0.5_13.5"}, "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": 2014080003096}, "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": "August 28 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 31 2014"}, "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": 271113.10512131016}, "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": ["Benin", "Burkina Faso", "Ghana", "Mali", "Niger", "Nigeria", "Togo"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "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": 13.5}, "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": 0.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "0.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -3.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 3.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.15, 13.75], [-3.25, 14.0], [-3.03, 14.53], [-2.68, 14.68], [-2.53, 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11.85], [-2.0, 11.75], [-2.53, 11.97], [-2.68, 12.32], [-3.03, 12.47], [-3.25, 13.0], [-3.15, 13.25], [-3.25, 13.5], [-3.15, 13.75]]]]}, "2014-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.53, 14.53], [-3.0, 14.75], [-2.75, 14.65], [-2.68, 14.68], [-2.53, 15.03], [-2.0, 15.25], [-1.75, 15.15], [-1.68, 15.18], [-1.53, 15.53], [-1.0, 15.75], [-0.75, 15.65], [-0.5, 15.75], [0.03, 15.53], [0.18, 15.18], [0.3, 15.13], [0.47, 15.53], [1.0, 15.75], [1.25, 15.65], [1.32, 15.68], [1.47, 16.03], [2.0, 16.25], [2.25, 16.15], [2.5, 16.25], [3.03, 16.03], [3.25, 15.5], [3.13, 15.2], [3.53, 15.03], [3.75, 14.5], [3.53, 13.97], [3.13, 13.8], [3.18, 13.68], [3.53, 13.53], [3.68, 13.18], [4.03, 13.03], [4.25, 12.5], [4.04, 12.0], [4.25, 11.5], [4.03, 10.97], [3.5, 10.75], [3.25, 10.85], [3.18, 10.82], [3.03, 10.47], [2.5, 10.25], [2.25, 10.35], [2.18, 10.32], [2.03, 9.97], [1.68, 9.82], [1.53, 9.47], [1.0, 9.25], [0.75, 9.35], [0.68, 9.32], [0.53, 8.97], [0.0, 8.75], [-0.53, 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{"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.31391168653869, 36.86209784462892, 34.22436884001172, 30.556253222740963]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.0766745449916404, 4.439389401455367, 3.179873274966823, 2.0082759751259953]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.267409416651958, 6.9014172689243765, 5.217023633829228, 2.3394480959537987]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6305817305497734, 3.463923214962383, 2.477912478391213, 1.5597260700443822]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.250844557373413, 4.087592020269168, 3.5682915146826124, 1.813885989430637]}}