{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:23.428307", "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": "2010-Aug-07_to_2010-Aug-09_346.0_22.5"}, "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": 2010080000371}, "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 07 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 09 2010"}, "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": 65519.179987113224}, "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": ["Mauritania", "Morocco"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 22.5}, "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": 346.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "346.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 344.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 347.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.25, 23.0], [-16.03, 23.53], [-15.68, 23.68], [-15.53, 24.03], [-15.18, 24.18], [-15.15, 24.25], [-15.25, 24.5], [-15.03, 25.03], [-14.5, 25.25], [-14.25, 25.15], [-14.0, 25.25], [-13.47, 25.03], [-13.25, 24.5], [-13.35, 24.25], [-13.25, 24.0], [-13.35, 23.75], [-13.32, 23.68], [-12.97, 23.53], [-12.75, 23.0], [-12.85, 22.75], [-12.75, 22.5], [-12.85, 22.25], [-12.82, 22.18], [-12.47, 22.03], [-12.25, 21.5], [-12.47, 20.97], [-13.0, 20.75], [-13.25, 20.85], [-13.5, 20.75], [-13.75, 20.85], [-14.0, 20.75], [-14.53, 20.97], [-14.68, 21.32], [-14.75, 21.35], [-15.0, 21.25], [-15.53, 21.47], [-15.75, 22.0], [-15.65, 22.25], [-15.68, 22.32], [-16.03, 22.47], [-16.25, 23.0]]]]}, "2010-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.25, 23.0], [-16.03, 23.53], [-15.68, 23.68], [-15.53, 24.03], [-15.18, 24.18], [-15.15, 24.25], [-15.25, 24.5], [-15.03, 25.03], [-14.5, 25.25], [-14.25, 25.15], [-14.0, 25.25], [-13.47, 25.03], [-13.25, 24.5], [-13.35, 24.25], [-13.25, 24.0], [-13.35, 23.75], [-13.32, 23.68], [-12.97, 23.53], [-12.75, 23.0], [-12.85, 22.75], [-12.75, 22.5], [-12.85, 22.25], [-12.82, 22.18], [-12.47, 22.03], [-12.25, 21.5], [-12.47, 20.97], [-13.0, 20.75], [-13.25, 20.85], [-13.5, 20.75], [-13.75, 20.85], [-14.0, 20.75], [-14.53, 20.97], [-14.68, 21.32], [-14.75, 21.35], [-15.0, 21.25], [-15.53, 21.47], [-15.75, 22.0], [-15.65, 22.25], [-15.68, 22.32], [-16.03, 22.47], [-16.25, 23.0]]]]}, "2010-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.25, 23.0], [-16.03, 23.53], [-15.68, 23.68], [-15.53, 24.03], [-15.18, 24.18], [-15.15, 24.25], [-15.25, 24.5], [-15.03, 25.03], [-14.5, 25.25], [-14.25, 25.15], [-14.0, 25.25], [-13.47, 25.03], [-13.25, 24.5], [-13.35, 24.25], [-13.25, 24.0], [-13.35, 23.75], [-13.32, 23.68], [-12.97, 23.53], [-12.75, 23.0], [-12.85, 22.75], [-12.75, 22.5], [-12.85, 22.25], [-12.82, 22.18], [-12.47, 22.03], [-12.25, 21.5], [-12.47, 20.97], [-13.0, 20.75], [-13.25, 20.85], [-13.5, 20.75], [-13.75, 20.85], [-14.0, 20.75], [-14.53, 20.97], [-14.68, 21.32], [-14.75, 21.35], [-15.0, 21.25], [-15.53, 21.47], [-15.75, 22.0], [-15.65, 22.25], [-15.68, 22.32], [-16.03, 22.47], [-16.25, 23.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.319640227874061}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.2166368295120815}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.31063152213619, 25.64999546247867, 26.92763486509284]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.979114475931, 21.89798684479075, 23.736111806884935]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.549151932798528, -6.202180781399467, -4.898577774338249]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.836801165534496, -7.319640227874061, -6.298364353262173]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7944571946551837, -2.4395477247119963, -1.9085588990499707]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2188872699075906, -2.8096137550648153, -2.5958229180780776]}}