{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:13.952253", "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": "2013-Nov-27_to_2013-Nov-30_21.0_-23.0"}, "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": 2013110002586}, "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": "November 27 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 30 2013"}, "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": 65502.43657244304}, "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": ["Botswana", "Namibia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Southern-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": -23.0}, "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": 21.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "21.0\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": 22.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -24.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.97, -23.03], [17.75, -22.5], [17.97, -21.97], [18.5, -21.75], [18.75, -21.85], [19.0, -21.75], [19.25, -21.85], [19.32, -21.82], [19.47, -21.47], [20.0, -21.25], [20.25, -21.35], [20.5, -21.25], [20.75, -21.35], [21.0, -21.25], [21.25, -21.35], [21.5, -21.25], [22.03, -21.47], [22.25, -22.0], [22.15, -22.25], [22.25, -22.5], [22.15, -22.75], [22.18, -22.82], [22.53, -22.97], [22.75, -23.5], [22.65, -23.75], [22.75, -24.0], [22.53, -24.53], [22.0, -24.75], [21.75, -24.65], [21.5, -24.75], [20.97, -24.53], [20.82, -24.18], [20.75, -24.15], [20.5, -24.25], [20.25, -24.15], [20.0, -24.25], [19.47, -24.03], [19.32, -23.68], [18.97, -23.53], [18.82, -23.18], [18.75, -23.15], [18.5, -23.25], [17.97, -23.03]]]]}, "2013-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.97, -23.03], [17.75, -22.5], [17.97, -21.97], [18.5, -21.75], [18.75, -21.85], [19.0, -21.75], [19.25, -21.85], [19.32, -21.82], [19.47, -21.47], [20.0, -21.25], [20.25, -21.35], [20.5, -21.25], [20.75, -21.35], [21.0, -21.25], [21.25, -21.35], [21.5, -21.25], [22.03, -21.47], [22.25, -22.0], [22.15, -22.25], [22.25, -22.5], [22.15, -22.75], [22.18, -22.82], [22.53, -22.97], [22.75, -23.5], [22.65, -23.75], [22.75, -24.0], [22.53, -24.53], [22.0, -24.75], [21.75, -24.65], [21.5, -24.75], [20.97, -24.53], [20.82, -24.18], [20.75, -24.15], [20.5, -24.25], [20.25, -24.15], [20.0, -24.25], [19.47, -24.03], [19.32, -23.68], [18.97, -23.53], [18.82, -23.18], [18.75, -23.15], [18.5, -23.25], [17.97, -23.03]]]]}, "2013-11-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.97, -23.03], [17.75, -22.5], [17.97, -21.97], [18.5, -21.75], [18.75, -21.85], [19.0, -21.75], [19.25, -21.85], [19.32, -21.82], [19.47, -21.47], [20.0, -21.25], [20.25, -21.35], [20.5, -21.25], [20.75, -21.35], [21.0, -21.25], [21.25, -21.35], [21.5, -21.25], [22.03, -21.47], [22.25, -22.0], [22.15, -22.25], [22.25, -22.5], [22.15, -22.75], [22.18, -22.82], [22.53, -22.97], [22.75, -23.5], [22.65, -23.75], [22.75, -24.0], [22.53, -24.53], [22.0, 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"Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.337128510045375, 29.366023591664487, 30.208793918357458, 29.551277790006793]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.152513759884073, 30.16041602191359, 31.33366951382783, 29.716694048120814]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.289501115061062, 3.324994063901922, 4.192903640774447, 3.3633827407835497]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.977140404091301, 3.8338822706922997, 5.085908446277131, 3.3838066043571757]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4421424873779853, 1.3796658223680063, 1.6668399283674011, 1.2787747357188868]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7040793495045872, 1.587418484097638, 1.983133535481982, 1.2890921661042218]}}