{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:18.327582", "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": "2019-Aug-17_to_2019-Aug-20_292.0_-42.5"}, "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": 2019080000538}, "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": "August 17 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 20 2019"}, "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": 75710.03536536946}, "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": ["Argentina"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.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": -42.5}, "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": 292.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "292.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 290.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 296.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -43.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -40.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.53, -43.03], [-69.75, -42.5], [-69.53, -41.97], [-69.0, -41.75], [-68.75, -41.85], [-68.62, -41.8], [-68.75, -41.5], [-68.53, -40.97], [-68.0, -40.75], [-67.47, -40.97], [-67.32, -41.32], [-67.25, -41.35], [-67.0, -41.25], [-66.47, -41.47], [-66.25, -42.0], [-66.47, -42.53], [-67.0, -42.75], [-67.25, -42.65], [-67.32, -42.68], [-67.47, -43.03], [-68.0, -43.25], [-68.25, -43.15], [-68.5, -43.25], [-68.75, -43.15], [-69.0, -43.25], [-69.53, -43.03]]]]}, "2019-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.75, -42.5], [-69.53, -41.97], [-69.18, -41.82], [-69.03, -41.47], [-68.68, -41.32], [-68.53, -40.97], [-68.0, -40.75], [-67.75, -40.85], [-67.5, -40.75], [-67.25, -40.85], [-67.18, -40.82], [-67.03, -40.47], [-66.5, -40.25], [-65.97, -40.47], [-65.82, -40.82], [-65.75, -40.85], [-65.68, -40.82], [-65.53, -40.47], [-65.0, -40.25], [-64.75, -40.35], [-64.5, -40.25], [-63.97, -40.47], [-63.82, -40.82], [-63.47, -40.97], [-63.25, -41.5], [-63.47, -42.03], [-63.82, -42.18], [-63.97, -42.53], [-64.32, -42.68], [-64.47, -43.03], [-65.0, -43.25], [-65.25, -43.15], [-65.32, -43.18], [-65.47, -43.53], [-66.0, -43.75], [-66.25, -43.65], [-66.32, -43.68], [-66.47, -44.03], [-67.0, -44.25], [-67.53, -44.03], [-67.7, -43.62], [-68.0, -43.75], [-68.25, -43.65], [-68.5, -43.75], [-69.03, -43.53], [-69.18, -43.18], [-69.53, -43.03], [-69.75, -42.5]]]]}, "2019-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.75, -42.5], [-69.53, -41.97], [-69.18, -41.82], [-69.03, -41.47], [-68.68, -41.32], [-68.53, -40.97], [-68.0, -40.75], [-67.75, -40.85], [-67.5, -40.75], [-67.25, -40.85], [-67.18, -40.82], [-67.03, -40.47], [-66.5, -40.25], [-65.97, -40.47], [-65.82, -40.82], [-65.75, -40.85], [-65.68, -40.82], [-65.53, -40.47], [-65.0, -40.25], [-64.75, -40.35], [-64.5, -40.25], [-63.97, -40.47], [-63.82, -40.82], [-63.47, -40.97], [-63.25, -41.5], [-63.47, -42.03], [-63.82, -42.18], [-63.97, -42.53], [-64.32, -42.68], [-64.47, -43.03], [-65.0, -43.25], [-65.25, -43.15], [-65.32, -43.18], [-65.47, -43.53], [-66.0, -43.75], [-66.25, -43.65], [-66.32, -43.68], [-66.47, -44.03], [-67.0, -44.25], [-67.53, -44.03], [-67.7, -43.62], [-68.0, -43.75], [-68.25, -43.65], [-68.5, -43.75], [-69.03, -43.53], [-69.18, -43.18], [-69.53, -43.03], [-69.75, -42.5]]]]}, "2019-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.75, -42.5], [-69.53, -41.97], [-69.18, -41.82], [-69.03, -41.47], [-68.68, -41.32], [-68.53, -40.97], [-68.0, -40.75], [-67.75, -40.85], [-67.5, -40.75], [-67.25, -40.85], [-67.18, -40.82], [-67.03, -40.47], [-66.5, -40.25], [-65.97, -40.47], [-65.82, -40.82], [-65.75, -40.85], [-65.68, -40.82], [-65.53, -40.47], [-65.0, -40.25], [-64.75, -40.35], [-64.5, -40.25], [-63.97, -40.47], [-63.82, -40.82], [-63.47, -40.97], [-63.25, -41.5], [-63.47, -42.03], [-63.82, -42.18], [-63.97, -42.53], [-64.32, -42.68], [-64.47, -43.03], [-65.0, -43.25], [-65.25, -43.15], [-65.32, -43.18], [-65.47, -43.53], [-66.0, -43.75], [-66.25, -43.65], [-66.32, -43.68], [-66.47, 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[-4.8643365636470905, -5.161686119651842, -5.827030135398555, -4.516832942320533]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.0143286657395265, -6.900494618598884, -8.375829776337014, -5.880912893350057]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4929053698416663, -1.663581061748555, -1.7941242425718245, -1.4138575387151324]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7726215297318524, -2.0250577954833995, -2.3375256604654733, -1.7241706256378733]}}