{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:33:03.375246", "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": "2022-Nov-16_to_2022-Nov-18_30.5_1.5"}, "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": 2022110000579}, "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 16 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 18 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 52513.96087256895}, "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": ["Congo DRC", "Uganda"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "S.Eastern-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": 1.5}, "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": 30.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 28.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 32.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 0.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 3.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-11-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.25, 2.0], [28.47, 2.53], [28.82, 2.68], [28.97, 3.03], [29.5, 3.25], [29.75, 3.15], [30.0, 3.25], [30.53, 3.03], [30.68, 2.68], [30.8, 2.63], [30.85, 2.75], [30.75, 3.0], [30.97, 3.53], [31.5, 3.75], [32.03, 3.53], [32.18, 3.18], [32.25, 3.15], [32.5, 3.25], [33.03, 3.03], [33.25, 2.5], [33.03, 1.97], [32.68, 1.82], [32.53, 1.47], [32.0, 1.25], [31.75, 1.35], [31.68, 1.32], [31.65, 1.25], [31.75, 1.0], [31.53, 0.47], [31.0, 0.25], [30.5, 0.46], [30.0, 0.25], [29.47, 0.47], [29.32, 0.82], [28.97, 0.97], [28.82, 1.32], [28.47, 1.47], [28.25, 2.0]]]]}, "2022-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.25, 2.0], [28.47, 2.53], [28.82, 2.68], [28.97, 3.03], [29.5, 3.25], [29.75, 3.15], [30.0, 3.25], [30.53, 3.03], [30.68, 2.68], [30.8, 2.63], [30.85, 2.75], [30.75, 3.0], [30.97, 3.53], [31.5, 3.75], [32.03, 3.53], [32.18, 3.18], [32.25, 3.15], [32.5, 3.25], [33.03, 3.03], [33.25, 2.5], [33.03, 1.97], [32.68, 1.82], [32.53, 1.47], [32.0, 1.25], [31.75, 1.35], [31.68, 1.32], [31.65, 1.25], [31.75, 1.0], [31.53, 0.47], [31.0, 0.25], [30.5, 0.46], [30.0, 0.25], [29.47, 0.47], [29.32, 0.82], [28.97, 0.97], [28.82, 1.32], [28.47, 1.47], [28.25, 2.0]]]]}, "2022-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.25, 2.0], [28.47, 2.53], [28.82, 2.68], [28.97, 3.03], [29.5, 3.25], [29.75, 3.15], [30.0, 3.25], [30.53, 3.03], [30.68, 2.68], [30.8, 2.63], [30.85, 2.75], [30.75, 3.0], [30.97, 3.53], [31.5, 3.75], [32.03, 3.53], [32.18, 3.18], [32.25, 3.15], [32.5, 3.25], [33.03, 3.03], [33.25, 2.5], [33.03, 1.97], [32.68, 1.82], [32.53, 1.47], [32.0, 1.25], [31.75, 1.35], [31.68, 1.32], [31.65, 1.25], [31.75, 1.0], [31.53, 0.47], [31.0, 0.25], [30.5, 0.46], [30.0, 0.25], [29.47, 0.47], [29.32, 0.82], [28.97, 0.97], [28.82, 1.32], [28.47, 1.47], [28.25, 2.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.326773192373537}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.611631544275919}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.962936320817448, 20.97913186838764, 21.063085840260158]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.703088068781085, 16.79895075368728, 16.799143377970438]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6341034349824246, -1.6265805329935408, -1.5742106648517922]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.2472011738778974, -2.326773192373537, -1.8523161172938103]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7171187585252514, -1.6728572430442232, -1.6140151418526483]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0033591867652314, -2.3207914481654175, -1.9817623392289667]}}