{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:47.583921", "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-Oct-02_to_2010-Oct-04_297.5_-14.0"}, "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": 2010100000172}, "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": "October 02 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 04 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": 233671.96715727999}, "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": ["Bolivia", "Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": -14.0}, "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": 297.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "297.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 291.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 299.75}, "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": -11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.03, -13.47], [-68.5, -13.25], [-68.25, -13.35], [-68.0, -13.25], [-67.47, -13.47], [-67.25, -14.0], [-67.35, -14.25], [-67.32, -14.32], [-67.0, -14.46], [-66.68, -14.32], [-66.53, -13.97], [-66.0, -13.75], [-65.75, -13.85], [-65.68, -13.82], [-65.53, -13.47], [-65.18, -13.32], [-65.03, -12.97], [-64.68, -12.82], [-64.65, -12.75], [-64.75, -12.5], [-64.53, -11.97], [-64.18, -11.82], [-64.03, -11.47], [-63.68, -11.32], [-63.53, -10.97], [-63.0, -10.75], [-62.47, -10.97], [-62.32, -11.32], [-62.25, -11.35], [-62.0, -11.25], [-61.47, -11.47], [-61.32, -11.82], [-60.97, -11.97], [-60.82, -12.32], [-60.47, -12.47], [-60.25, -13.0], [-60.47, -13.53], [-60.82, -13.68], [-60.85, -13.75], [-60.82, -13.82], [-60.47, -13.97], [-60.25, -14.5], [-60.35, -14.75], [-60.32, -14.82], [-59.97, -14.97], [-59.75, -15.5], [-59.97, -16.03], [-60.5, -16.25], [-60.75, -16.15], [-61.0, -16.25], [-61.25, -16.15], [-61.5, -16.25], [-61.75, -16.15], [-62.0, -16.25], [-62.5, -16.04], [-63.0, -16.25], [-63.25, -16.15], [-63.5, -16.25], [-63.75, -16.15], [-64.0, -16.25], 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[-62.47, -10.97], [-62.32, -11.32], [-62.25, -11.35], [-62.0, -11.25], [-61.47, -11.47], [-61.32, -11.82], [-60.97, -11.97], [-60.82, -12.32], [-60.47, -12.47], [-60.25, -13.0], [-60.47, -13.53], [-60.82, -13.68], [-60.85, -13.75], [-60.82, -13.82], [-60.47, -13.97], [-60.25, -14.5], [-60.35, -14.75], [-60.32, -14.82], [-59.97, -14.97], [-59.75, -15.5], [-59.97, -16.03], [-60.5, -16.25], [-60.75, -16.15], [-61.0, -16.25], [-61.25, -16.15], [-61.5, -16.25], [-61.75, -16.15], [-62.0, -16.25], [-62.5, -16.04], [-63.0, -16.25], [-63.25, -16.15], [-63.5, -16.25], [-63.75, -16.15], [-64.0, -16.25], [-64.25, -16.15], [-64.5, -16.25], [-64.75, -16.15], [-65.0, -16.25], [-65.25, -16.15], [-65.5, -16.25], [-65.75, -16.15], [-65.87, -16.2], [-65.75, -16.5], [-65.97, -17.03], [-66.5, -17.25], [-67.03, -17.03], [-67.18, -16.68], [-67.25, -16.65], [-67.5, -16.75], [-68.03, -16.53], [-68.25, -16.0], [-68.15, -15.75], [-68.18, -15.68], [-68.25, -15.65], [-68.5, -15.75], [-69.03, -15.53], [-69.25, -15.0], [-69.04, -14.5], [-69.25, -14.0], [-69.03, -13.47]]]]}, "2010-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.03, -13.47], [-68.5, -13.25], [-68.25, -13.35], [-68.0, -13.25], [-67.47, -13.47], [-67.25, -14.0], [-67.35, -14.25], [-67.32, -14.32], [-67.0, -14.46], [-66.68, -14.32], [-66.53, -13.97], [-66.0, -13.75], [-65.75, -13.85], [-65.68, -13.82], [-65.53, -13.47], [-65.18, -13.32], [-65.03, -12.97], [-64.68, -12.82], [-64.65, -12.75], [-64.75, -12.5], [-64.53, -11.97], [-64.18, -11.82], [-64.03, -11.47], [-63.68, -11.32], [-63.53, -10.97], [-63.0, -10.75], [-62.47, -10.97], [-62.32, -11.32], [-62.25, -11.35], [-62.0, -11.25], [-61.47, -11.47], [-61.32, -11.82], [-60.97, -11.97], [-60.82, -12.32], [-60.47, -12.47], [-60.25, -13.0], [-60.47, -13.53], [-60.82, -13.68], [-60.85, -13.75], [-60.82, -13.82], [-60.47, -13.97], [-60.25, -14.5], [-60.35, -14.75], [-60.32, -14.82], [-59.97, -14.97], [-59.75, -15.5], [-59.97, -16.03], [-60.5, -16.25], [-60.75, 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"description": "The daily evolution of mean t2m.", "value": [22.375029942868878, 18.082666727532853, 22.381081864103123]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.437038972777827, 12.611142014900565, 14.264548072257867]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.4946302195766408, -7.782125243668126, -3.4087302097541063]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.95713716497238, -10.339197400300009, -5.386039443546792]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7034190345393818, -3.8755708597121687, -1.649670012630075]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.590148030343638, -5.138240702127472, -2.151884519890936]}}