{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:34.447601", "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": "2020-Jun-25_to_2020-Jun-29_355.5_15.0"}, "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": 2020060002811}, "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": "June 25 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 29 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 107208.60701367081}, "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": ["Burkina Faso", "Mali", "Niger"]}, "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": 15.0}, "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": 355.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "355.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 354.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 360.75}, "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": 17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.75, 16.0], [-2.65, 16.25], [-2.75, 16.5], [-2.53, 17.03], 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[0.53, 17.03], [0.75, 16.5], [0.54, 16.0], [0.68, 15.68], [1.03, 15.53], [1.25, 15.0], [1.15, 14.75], [1.25, 14.5], [1.03, 13.97], [0.5, 13.75], [0.25, 13.85], [0.18, 13.82], [0.03, 13.47], [-0.5, 13.25], [-1.03, 13.47], [-1.18, 13.82], [-1.53, 13.97], [-1.75, 14.5], [-1.62, 14.8], [-1.75, 14.85], [-1.82, 14.82], [-1.97, 14.47], [-2.5, 14.25], [-3.03, 14.47], [-3.18, 14.82], [-3.25, 14.85], [-3.32, 14.82], [-3.35, 14.75], [-3.25, 14.5], [-3.47, 13.97], [-4.0, 13.75], [-4.53, 13.97], [-4.68, 14.32], [-4.75, 14.35], [-5.0, 14.25], [-5.53, 14.47], [-5.75, 15.0], [-5.53, 15.53], [-5.18, 15.68], [-5.03, 16.03], [-4.68, 16.18]]]]}, "2020-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.68, 16.18], [-4.53, 16.53], [-4.18, 16.68], [-4.15, 16.75], [-4.25, 17.0], [-4.03, 17.53], [-3.5, 17.75], [-2.97, 17.53], [-2.75, 17.0], [-2.85, 16.75], [-2.82, 16.68], [-2.7, 16.62], [-2.53, 17.03], [-2.0, 17.25], [-1.75, 17.15], [-1.5, 17.25], [-1.25, 17.15], [-1.0, 17.25], [-0.75, 17.15], [-0.5, 17.25], [-0.25, 17.15], [0.0, 17.25], [0.53, 17.03], [0.75, 16.5], [0.54, 16.0], [0.68, 15.68], [1.03, 15.53], [1.25, 15.0], [1.15, 14.75], [1.25, 14.5], [1.03, 13.97], [0.5, 13.75], [0.25, 13.85], [0.18, 13.82], [0.03, 13.47], [-0.5, 13.25], [-1.03, 13.47], [-1.18, 13.82], [-1.53, 13.97], [-1.75, 14.5], [-1.62, 14.8], [-1.75, 14.85], [-1.82, 14.82], [-1.97, 14.47], [-2.5, 14.25], [-3.03, 14.47], [-3.18, 14.82], [-3.25, 14.85], [-3.32, 14.82], [-3.35, 14.75], [-3.25, 14.5], [-3.47, 13.97], [-4.0, 13.75], [-4.53, 13.97], [-4.68, 14.32], [-4.75, 14.35], [-5.0, 14.25], [-5.53, 14.47], [-5.75, 15.0], [-5.53, 15.53], [-5.18, 15.68], [-5.03, 16.03], [-4.68, 16.18]]]]}, "2020-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.68, 16.18], [-4.53, 16.53], [-4.18, 16.68], [-4.15, 16.75], [-4.25, 17.0], [-4.03, 17.53], [-3.5, 17.75], [-2.97, 17.53], [-2.75, 17.0], [-2.85, 16.75], [-2.82, 16.68], [-2.47, 16.53], [-2.25, 16.0], [-2.35, 15.75], [-2.25, 15.5], 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duration", "value": 3.8576230401052953}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.740495045417188}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [35.99472215047928, 36.65741252533775, 35.84468780501618, 35.7146391152794, 35.816242510513746]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.96792770529413, 37.368902571033004, 37.20271753710455, 36.39705507538844, 36.73846483426041]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.5217905501048774, 3.2530236071424543, 2.525885585377308, 2.437975053999091, 2.6049470161821486]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8986822688239045, 3.8576230401052953, 2.990182061201949, 3.1191337382700794, 3.3444135738697014]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5185136677575315, 1.9624624215504787, 1.5337581179018356, 1.5571680944893063, 1.6997470648890216]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7536863582402242, 2.3414650040542275, 1.8047922841464663, 1.8162070819088199, 1.9856123492092879]}}