{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:07.882051", "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": "2015-Nov-04_to_2015-Nov-06_16.5_-10.0"}, "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": 2015110000202}, "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 04 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 06 2015"}, "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": 97140.13865090121}, "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": ["Angola"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "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": -10.0}, "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": 16.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "16.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 14.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-11-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.47, -8.97], [15.0, -8.75], [15.5, -8.96], [16.0, -8.75], [16.25, -8.85], [16.5, -8.75], [16.75, -8.85], [16.82, -8.82], [16.85, -8.75], [16.75, -8.5], [16.97, -7.97], [17.5, -7.75], [18.03, -7.97], [18.18, -8.32], [18.53, -8.47], [18.75, -9.0], [18.54, -9.5], [18.75, -10.0], [18.53, -10.53], [18.13, -10.7], [18.25, -11.0], [18.15, -11.25], [18.25, -11.5], [18.15, -11.75], [18.25, -12.0], [18.15, -12.25], [18.25, -12.5], [18.03, -13.03], [17.68, -13.18], [17.53, -13.53], [17.0, -13.75], [16.75, -13.65], [16.5, -13.75], [15.97, -13.53], [15.75, -13.0], [15.85, -12.75], [15.82, -12.68], [15.47, -12.53], [15.25, -12.0], [15.35, -11.75], [15.25, -11.5], [15.46, -11.0], [15.32, -10.68], [15.25, -10.65], [15.0, -10.75], [14.47, -10.53], [14.25, -10.0], [14.35, -9.75], [14.25, -9.5], [14.47, -8.97]]]]}, "2015-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.47, -8.97], [15.0, -8.75], [15.5, -8.96], [16.0, -8.75], [16.25, -8.85], [16.5, -8.75], [16.75, -8.85], [16.82, -8.82], [16.85, -8.75], [16.75, -8.5], [16.97, -7.97], [17.5, -7.75], [18.03, -7.97], [18.18, -8.32], [18.53, -8.47], [18.75, -9.0], [18.54, -9.5], [18.75, -10.0], [18.53, -10.53], [18.13, -10.7], [18.25, -11.0], [18.15, -11.25], [18.25, -11.5], [18.15, -11.75], [18.25, -12.0], [18.15, -12.25], [18.25, -12.5], [18.03, -13.03], [17.68, -13.18], [17.53, -13.53], [17.0, -13.75], [16.75, -13.65], [16.5, -13.75], [15.97, -13.53], [15.75, -13.0], [15.85, -12.75], [15.82, -12.68], [15.47, -12.53], [15.25, -12.0], [15.35, -11.75], [15.25, -11.5], [15.46, -11.0], [15.32, -10.68], [15.25, -10.65], [15.0, -10.75], [14.47, -10.53], [14.25, -10.0], [14.35, -9.75], [14.25, -9.5], [14.47, -8.97]]]]}, "2015-11-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.47, -8.97], [15.0, -8.75], [15.5, -8.96], [16.0, -8.75], [16.25, -8.85], [16.5, -8.75], [16.75, -8.85], [16.82, -8.82], [16.85, -8.75], [16.75, -8.5], [16.97, -7.97], [17.5, -7.75], [18.03, -7.97], [18.18, -8.32], [18.53, -8.47], [18.75, -9.0], [18.54, -9.5], [18.75, -10.0], [18.53, -10.53], [18.13, -10.7], [18.25, -11.0], [18.15, -11.25], [18.25, -11.5], [18.15, -11.75], [18.25, -12.0], [18.15, -12.25], [18.25, -12.5], [18.03, -13.03], [17.68, -13.18], [17.53, -13.53], [17.0, -13.75], [16.75, -13.65], [16.5, -13.75], [15.97, -13.53], [15.75, -13.0], [15.85, -12.75], [15.82, -12.68], [15.47, -12.53], [15.25, -12.0], [15.35, -11.75], [15.25, -11.5], [15.46, -11.0], [15.32, -10.68], [15.25, -10.65], [15.0, -10.75], [14.47, -10.53], [14.25, -10.0], [14.35, -9.75], [14.25, -9.5], [14.47, -8.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.029567714364191}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.702480706725347}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.228576850683055, 19.705482495415254, 19.36073537433805]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.188335799641266, 17.345264332958152, 16.997870933080264]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.9434132241431232, -1.4164406607730768, -1.7475882352598404]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.029567714364191, -1.93640324341618, -2.75235317374171]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.0602959746511296, -1.5472313729513285, -1.9419426349192028]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.9561011114608715, -1.9287708413060267, -2.698148678424278]}}