{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:30.164384", "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": "2021-May-02_to_2021-May-05_323.0_-8.5"}, "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": 2021050000210}, "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": "May 02 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 05 2021"}, "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": 73503.95446547428}, "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": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America"]}, "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": ["South Atlantic Ocean"]}, "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": -8.5}, "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": 323.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "323.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 320.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 326.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.75, -7.0], [-39.53, -6.47], [-39.0, -6.25], [-38.5, -6.46], [-38.0, -6.25], [-37.75, -6.35], [-37.5, -6.25], [-36.97, -6.47], [-36.82, -6.82], [-36.47, -6.97], [-36.25, -7.5], [-36.35, -7.75], [-36.32, -7.82], [-36.25, -7.85], [-36.0, -7.75], [-35.75, -7.85], [-35.5, -7.75], [-35.25, -7.85], [-35.18, -7.82], [-35.15, -7.75], [-35.25, -7.5], [-35.15, -7.25], [-35.25, -7.0], [-35.15, -6.75], [-35.25, -6.5], [-35.03, -5.97], [-34.5, -5.75], [-33.97, -5.97], [-33.75, -6.5], [-33.85, -6.75], [-33.75, -7.0], [-33.85, -7.25], [-33.75, -7.5], [-33.85, -7.75], [-33.75, -8.0], [-33.97, -8.53], [-34.32, -8.68], [-34.47, -9.03], [-34.82, -9.18], [-34.97, -9.53], [-35.5, -9.75], [-35.75, -9.65], [-36.0, -9.75], [-36.25, -9.65], [-36.5, -9.75], [-37.03, -9.53], [-37.18, -9.18], [-37.53, -9.03], [-37.68, -8.68], [-38.03, -8.53], [-38.2, -8.12], [-38.5, -8.25], [-39.03, -8.03], [-39.18, -7.68], [-39.53, -7.53], [-39.75, -7.0]]]]}, "2021-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.75, -7.0], [-39.53, -6.47], [-39.0, 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{"type": "MultiPolygon", "coordinates": [[[[-39.75, -7.0], [-39.53, -6.47], [-39.0, -6.25], [-38.5, -6.46], [-38.0, -6.25], [-37.75, -6.35], [-37.5, -6.25], [-36.97, -6.47], [-36.82, -6.82], [-36.47, -6.97], [-36.25, -7.5], [-36.35, -7.75], [-36.32, -7.82], [-36.25, -7.85], [-36.0, -7.75], [-35.75, -7.85], [-35.68, -7.82], [-35.53, -7.47], [-35.18, -7.32], [-35.15, -7.25], [-35.25, -7.0], [-35.15, -6.75], [-35.18, -6.68], [-35.53, -6.53], [-35.75, -6.0], [-35.53, -5.47], [-35.0, -5.25], [-34.47, -5.47], [-34.32, -5.82], [-34.25, -5.85], [-34.0, -5.75], [-33.47, -5.97], [-33.25, -6.5], [-33.35, -6.75], [-33.25, -7.0], [-33.47, -7.53], [-33.82, -7.68], [-33.85, -7.75], [-33.75, -8.0], [-33.97, -8.53], [-34.32, -8.68], [-34.47, -9.03], [-34.82, -9.18], [-34.97, -9.53], [-35.5, -9.75], [-35.75, -9.65], [-36.0, -9.75], [-36.25, -9.65], [-36.5, -9.75], [-37.03, -9.53], [-37.18, -9.18], [-37.53, -9.03], [-37.68, -8.68], [-38.03, -8.53], [-38.2, -8.12], [-38.5, -8.25], [-39.03, -8.03], 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-1.3153979509010654, -1.4369985461947465]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.6685947369610403, -2.671274130538393, -1.978218844089838, -2.558595745892717]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.676196283311149, -1.5429515237608964, -1.493815091998654, -1.577805189897934]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3071020303670733, -2.0903428913200823, -2.1947901509885748, -1.8630705190520067]}}