{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:59.885878", "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": "2022-Aug-14_to_2022-Aug-16_324.0_-10.5"}, "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": 2022080000614}, "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 14 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 16 2022"}, "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": 79028.38201850854}, "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": -10.5}, "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": 324.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "324.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 319.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 325.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -11.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -9.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.03, -8.97], [-40.5, -8.75], [-40.25, -8.85], [-40.0, -8.75], [-39.5, -8.96], [-39.0, -8.75], [-38.47, -8.97], [-38.32, -9.32], [-38.25, -9.35], [-38.0, -9.25], [-37.47, -9.47], [-37.3, -9.88], [-37.0, -9.75], [-36.75, -9.85], [-36.5, -9.75], [-36.25, -9.85], [-36.0, -9.75], [-35.75, -9.85], [-35.5, -9.75], [-34.97, -9.97], [-34.82, -10.32], [-34.47, -10.47], [-34.25, -11.0], [-34.47, -11.53], [-35.0, -11.75], [-35.25, -11.65], [-35.32, -11.68], [-35.47, -12.03], [-36.0, -12.25], [-36.25, -12.15], [-36.5, -12.25], [-37.03, -12.03], [-37.18, -11.68], [-37.25, -11.65], [-37.5, -11.75], [-38.03, -11.53], [-38.18, -11.18], [-38.25, -11.15], [-38.5, -11.25], [-38.75, -11.15], [-39.0, -11.25], [-39.25, -11.15], [-39.5, -11.25], [-39.75, -11.15], [-40.0, -11.25], [-40.53, -11.03], [-40.68, -10.68], [-41.03, -10.53], [-41.25, -10.0], [-41.15, -9.75], [-41.25, -9.5], [-41.03, -8.97]]]]}, "2022-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.03, -8.97], [-40.5, -8.75], [-40.25, -8.85], [-40.0, -8.75], [-39.5, -8.96], [-39.0, -8.75], [-38.47, -8.97], [-38.32, -9.32], [-38.25, -9.35], [-38.0, -9.25], [-37.47, -9.47], [-37.3, -9.88], [-37.0, -9.75], [-36.75, -9.85], [-36.5, -9.75], [-36.25, -9.85], [-36.0, -9.75], [-35.75, -9.85], [-35.5, -9.75], [-34.97, -9.97], [-34.82, -10.32], [-34.47, -10.47], [-34.25, -11.0], [-34.47, -11.53], [-35.0, -11.75], [-35.25, -11.65], [-35.32, -11.68], [-35.47, -12.03], [-36.0, -12.25], [-36.25, -12.15], [-36.5, -12.25], [-37.03, -12.03], [-37.18, -11.68], [-37.25, -11.65], [-37.5, -11.75], [-38.03, -11.53], [-38.18, -11.18], [-38.25, -11.15], [-38.5, -11.25], [-38.75, -11.15], [-39.0, -11.25], [-39.25, -11.15], [-39.5, -11.25], [-39.75, -11.15], [-40.0, -11.25], [-40.53, -11.03], [-40.68, -10.68], [-41.03, -10.53], [-41.25, -10.0], [-41.15, -9.75], [-41.25, -9.5], [-41.03, -8.97]]]]}, "2022-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.03, -8.97], [-40.5, -8.75], [-40.25, -8.85], [-40.0, -8.75], [-39.5, -8.96], [-39.0, -8.75], [-38.47, -8.97], [-38.32, -9.32], [-38.25, -9.35], [-38.0, -9.25], [-37.47, -9.47], [-37.3, -9.88], [-37.0, -9.75], [-36.75, -9.85], [-36.5, -9.75], [-36.25, -9.85], [-36.0, -9.75], [-35.75, -9.85], [-35.5, -9.75], [-34.97, -9.97], [-34.82, -10.32], [-34.47, -10.47], [-34.25, -11.0], [-34.47, -11.53], [-35.0, -11.75], [-35.25, -11.65], [-35.32, -11.68], [-35.47, -12.03], [-36.0, -12.25], [-36.25, -12.15], [-36.5, -12.25], [-37.03, -12.03], [-37.18, -11.68], [-37.25, -11.65], [-37.5, -11.75], [-38.03, -11.53], [-38.18, -11.18], [-38.25, -11.15], [-38.5, -11.25], [-38.75, -11.15], [-39.0, -11.25], [-39.25, -11.15], [-39.5, -11.25], [-39.75, -11.15], [-40.0, -11.25], [-40.53, -11.03], [-40.68, -10.68], [-41.03, -10.53], [-41.25, -10.0], [-41.15, -9.75], [-41.25, -9.5], [-41.03, -8.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.7824638828121238}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.4626762638238058}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.985132847226623, 21.825719734806455, 22.280478476463202]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.76123821405298, 19.65446620171798, 20.270137500365706]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.4894280803261473, -1.6708211035715868, -1.2277796075736835]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.362283373177263, -2.7824638828121238, -1.9094155544576097]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8656083256263754, -2.005082249428312, -1.5046354524890366]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.402647243804359, -2.605965231688276, -1.8917163891312843]}}