{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:39.753529", "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": "2017-Dec-16_to_2017-Dec-19_38.0_-16.0"}, "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": 2017120000562}, "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": "December 16 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 19 2017"}, "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": "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": 92923.06783859256}, "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"]}, "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": -16.0}, "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": 38.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "38.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 39.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-12-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.25, -16.0], [37.47, -15.47], [38.0, -15.25], [38.25, -15.35], [38.5, -15.25], [39.03, -15.47], [39.25, -16.0], [39.15, -16.25], [39.25, -16.5], [39.03, -17.03], [38.5, -17.25], [37.97, -17.03], [37.82, -16.68], [37.47, -16.53], [37.25, -16.0]]]]}, "2017-12-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, -14.53], [35.25, -14.0], [35.47, -13.47], [36.0, -13.25], [36.25, -13.35], [36.5, -13.25], [36.75, -13.35], [36.82, -13.32], [36.85, -13.25], [36.75, -13.0], [36.97, -12.47], [37.5, -12.25], [37.75, -12.35], [37.82, -12.32], [37.97, -11.97], [38.5, -11.75], [38.75, -11.85], [39.0, -11.75], [39.53, -11.97], [39.68, -12.32], [40.03, -12.47], [40.25, -13.0], [40.15, -13.25], [40.25, -13.5], [40.15, -13.75], [40.25, -14.0], [40.15, -14.25], [40.25, -14.5], [40.03, -15.03], [39.5, -15.25], [39.25, -15.15], [39.18, -15.18], [39.15, -15.25], [39.25, -15.5], [39.15, -15.75], [39.25, -16.0], [39.15, -16.25], [39.25, -16.5], [39.03, -17.03], [38.5, -17.25], [37.97, -17.03], [37.82, -16.68], [37.47, -16.53], [37.25, -16.0], [37.35, -15.75], [37.25, -15.5], [37.35, -15.25], [37.25, -15.0], [37.35, -14.75], [37.32, -14.68], [37.25, -14.65], [37.0, -14.75], [36.75, -14.65], [36.5, -14.75], [36.25, -14.65], [36.0, -14.75], [35.47, -14.53]]]]}, "2017-12-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, -14.53], [35.25, -14.0], [35.47, -13.47], [36.0, -13.25], [36.25, -13.35], [36.5, -13.25], [36.75, -13.35], [36.82, -13.32], [36.85, -13.25], [36.75, -13.0], [36.97, -12.47], [37.5, -12.25], [37.75, -12.35], [37.82, -12.32], [37.97, -11.97], [38.5, -11.75], [38.75, -11.85], [39.0, -11.75], [39.53, -11.97], [39.68, -12.32], [40.03, -12.47], [40.25, -13.0], [40.15, -13.25], [40.25, -13.5], [40.15, -13.75], [40.25, -14.0], [40.15, -14.25], [40.25, -14.5], [40.03, -15.03], [39.5, -15.25], [39.25, -15.15], [39.18, -15.18], [39.15, -15.25], [39.25, -15.5], [39.15, -15.75], [39.25, -16.0], [39.15, -16.25], [39.25, -16.5], [39.03, -17.03], [38.5, -17.25], [37.97, -17.03], [37.82, -16.68], [37.47, -16.53], [37.25, -16.0], [37.35, -15.75], [37.25, -15.5], [37.35, -15.25], [37.25, -15.0], [37.35, -14.75], [37.32, -14.68], [37.25, -14.65], [37.0, -14.75], [36.75, -14.65], [36.5, -14.75], [36.25, -14.65], [36.0, -14.75], [35.47, -14.53]]]]}, "2017-12-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, -14.53], [35.25, -14.0], [35.47, -13.47], [36.0, -13.25], [36.25, -13.35], [36.5, -13.25], [36.75, -13.35], [36.82, -13.32], [36.85, -13.25], [36.75, -13.0], [36.97, -12.47], [37.5, -12.25], [37.75, -12.35], [37.82, -12.32], [37.97, -11.97], [38.5, -11.75], [38.75, -11.85], [39.0, -11.75], [39.53, -11.97], [39.68, -12.32], [40.03, -12.47], [40.25, -13.0], [40.15, -13.25], [40.25, -13.5], [40.15, -13.75], [40.25, -14.0], [40.15, -14.25], [40.25, -14.5], [40.03, -15.03], [39.5, -15.25], [39.25, -15.15], [39.18, -15.18], [39.15, -15.25], [39.25, -15.5], [39.03, -16.03], [38.68, -16.18], [38.53, -16.53], [38.0, -16.75], [37.47, -16.53], [37.25, 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of mean t2m anomalies.", "value": [-2.6363804448927417, -2.4168619978110413, -2.411664470050572, -2.3150228681663267]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.672445576071425, -2.9299396227223724, -2.807562484272296, -2.6554959821742727]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.323077641718499, -1.5685282019369127, -1.5827467501319403, -1.554661473150354]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3709734153022612, -2.0992072804438657, -1.9722752330824866, -1.8363132183515503]}}