{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:26:27.655342", "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": "2021-Jul-15_to_2021-Jul-19_33.0_-21.0"}, "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": 2021070000608}, "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": "July 15 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 19 2021"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 83589.89455390794}, "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": ["Mozambique", "Zimbabwe"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": -21.0}, "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": 33.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "33.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 31.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.25}, "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": {"2021-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.0, -18.75], [34.53, -18.97], [34.75, -19.5], [34.53, -20.03], [34.0, -20.25], [33.47, -20.03], [33.25, -19.5], [33.47, -18.97], [34.0, -18.75]]]]}, "2021-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.35, -21.25], [32.25, -21.0], [32.47, -20.47], [32.82, -20.32], [32.97, -19.97], [33.32, -19.82], [33.35, -19.75], [33.25, -19.5], [33.47, -18.97], [34.0, -18.75], [34.53, -18.97], [34.75, -19.5], [34.65, -19.75], [34.75, -20.0], [34.65, -20.25], [34.75, -20.5], [34.65, -20.75], [34.75, -21.0], [34.65, -21.25], [34.75, -21.5], [34.65, -21.75], [34.75, -22.0], [34.53, -22.53], [34.18, -22.68], [34.15, -22.75], [34.25, -23.0], [34.03, -23.53], [33.5, -23.75], [32.97, -23.53], [32.75, -23.0], [32.85, -22.75], [32.82, -22.68], [32.47, -22.53], [32.25, -22.0], [32.35, -21.75], [32.25, -21.5], [32.35, -21.25]]]]}, "2021-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.97, -20.97], [31.32, -20.82], [31.35, -20.75], [31.25, -20.5], [31.35, -20.25], [31.25, -20.0], [31.47, -19.47], [31.82, -19.32], 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15.64869228870225]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.102576998879385, 16.241392319430872, 12.741262438049489, 12.23524398523142, 12.656453064287632]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7422692546642793, -2.258585070393451, -2.882975809304651, -2.8554594742947423, -2.75788633362541]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.7422692546642793, -2.5501764825689293, -3.4147466455222, -3.8371829519495577, -3.39410338559469]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.1551689211735874, -1.3417034920198587, -1.6052657304028215, -1.5544442919568497, -1.4870739609646408]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.1551689211735874, -1.4367240646191162, -1.850435975906926, -1.889447085645056, -1.7267282889638715]}}