{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:54.290971", "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": "2013-Nov-24_to_2013-Nov-27_40.0_-12.0"}, "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": 2013110001093}, "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 24 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 27 2013"}, "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": 121112.11842273259}, "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": ["Malawi", "Mozambique", "Tanzania"]}, "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": -12.0}, "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": 40.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.47, -12.53], [39.25, -12.0], [39.47, -11.47], [40.0, -11.25], [40.53, -11.47], [40.75, -12.0], [40.53, -12.53], [40.0, -12.75], [39.47, -12.53]]], [[[34.5, -10.25], [35.03, -10.47], [35.25, -11.0], [35.15, -11.25], [35.25, -11.5], [35.03, -12.03], [34.5, -12.25], [33.97, -12.03], [33.75, -11.5], [33.85, -11.25], [33.75, -11.0], [33.97, -10.47], [34.5, -10.25]]]]}, "2013-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.97, -10.47], [34.32, -10.32], [34.47, -9.97], [35.0, -9.75], [35.25, -9.85], [35.5, -9.75], [35.75, -9.85], [36.0, -9.75], [36.25, -9.85], [36.5, -9.75], [37.03, -9.97], [37.18, -10.32], [37.25, -10.35], [37.32, -10.32], [37.47, -9.97], [38.0, -9.75], [38.25, -9.85], [38.5, -9.75], [39.03, -9.97], [39.18, -10.32], [39.53, -10.47], [39.68, -10.82], [39.75, -10.85], [40.0, -10.75], [40.53, -10.97], [40.75, -11.5], [40.65, -11.75], [40.75, -12.0], [40.53, -12.53], [40.0, -12.75], [39.75, -12.65], [39.5, -12.75], [39.25, -12.65], [39.0, -12.75], [38.75, -12.65], [38.68, -12.68], [38.65, -12.75], [38.75, -13.0], [38.65, -13.25], [38.75, -13.5], [38.53, -14.03], [38.0, -14.25], [37.47, -14.03], [37.32, -13.68], [37.25, -13.65], [37.0, -13.75], [36.47, -13.53], [36.25, -13.0], [36.35, -12.75], [36.32, -12.68], [36.0, -12.54], [35.5, -12.75], [34.97, -12.53], [34.8, -12.12], [34.5, -12.25], [33.97, -12.03], [33.75, -11.5], [33.85, -11.25], [33.75, -11.0], [33.97, -10.47]]]]}, "2013-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.97, -10.47], [34.32, -10.32], [34.47, -9.97], [35.0, -9.75], [35.25, -9.85], [35.5, -9.75], [35.75, -9.85], [36.0, -9.75], [36.25, -9.85], [36.5, -9.75], [37.03, -9.97], [37.18, -10.32], [37.25, -10.35], [37.32, -10.32], [37.47, -9.97], [38.0, -9.75], [38.25, -9.85], [38.5, -9.75], [39.03, -9.97], [39.18, -10.32], [39.53, -10.47], [39.68, -10.82], [39.75, -10.85], [40.0, -10.75], [40.53, -10.97], [40.75, -11.5], [40.65, -11.75], [40.75, -12.0], [40.53, -12.53], [40.0, -12.75], [39.75, -12.65], [39.5, -12.75], [39.25, -12.65], [39.0, -12.75], [38.75, -12.65], [38.68, -12.68], [38.65, -12.75], [38.75, -13.0], [38.65, -13.25], [38.75, -13.5], [38.53, -14.03], [38.0, -14.25], [37.47, -14.03], [37.32, -13.68], [37.25, -13.65], [37.0, -13.75], [36.47, -13.53], [36.25, -13.0], [36.35, -12.75], [36.32, -12.68], [36.0, -12.54], [35.5, -12.75], [34.97, -12.53], [34.8, -12.12], [34.5, -12.25], [33.97, -12.03], [33.75, -11.5], [33.85, -11.25], [33.75, -11.0], [33.97, -10.47]]]]}, "2013-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, -10.5], [34.47, -9.97], [35.0, -9.75], [35.25, -9.85], [35.5, -9.75], [35.75, -9.85], [36.0, -9.75], [36.25, -9.85], [36.5, -9.75], [37.03, -9.97], [37.18, -10.32], [37.25, -10.35], [37.32, -10.32], [37.47, -9.97], [38.0, -9.75], [38.25, -9.85], [38.5, -9.75], [39.03, -9.97], [39.18, -10.32], [39.53, -10.47], [39.68, -10.82], [39.75, -10.85], [40.0, -10.75], [40.53, -10.97], [40.75, -11.5], [40.65, -11.75], [40.75, -12.0], [40.53, -12.53], [40.0, -12.75], [39.75, 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"Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.114521513688203, 21.325355045079448, 20.989342894916092, 21.54973944338019]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.8480704516297426, -3.2332305928071436, -3.563513862306972, -2.941027234830615]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.019110915368856, -5.655704792712584, -4.893515499455134, -3.8175498940265697]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5531991362358057, -2.0257059077287543, -2.227829690471395, -1.857149182705506]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7955462813626937, -2.8153771797005196, -2.7260417928922687, -2.9901526187278904]}}