{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:32:01.332586", "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-19_to_2022-Aug-21_296.0_-23.0"}, "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": 2022080000779}, "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 19 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 21 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": 53843.33773600038}, "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", "Paraguay"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.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": []}, "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": -23.0}, "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": 296.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.54, -24.0], [-64.75, -23.5], [-64.65, -23.25], [-64.75, -23.0], [-64.65, -22.75], [-64.75, -22.5], [-64.53, -21.97], [-64.0, -21.75], [-63.75, -21.85], [-63.5, -21.75], [-63.25, -21.85], [-63.0, -21.75], [-62.47, -21.97], [-62.3, -22.38], [-62.18, -22.32], [-62.03, -21.97], [-61.5, -21.75], [-60.97, -21.97], [-60.75, -22.5], [-60.97, -23.03], [-61.32, -23.18], [-61.47, -23.53], [-61.82, -23.68], [-61.85, -23.75], [-61.75, -24.0], [-61.97, -24.53], [-62.5, -24.75], [-62.75, -24.65], [-62.82, -24.68], [-62.85, -24.75], [-62.75, -25.0], [-62.97, -25.53], [-63.5, -25.75], [-63.75, -25.65], [-64.0, -25.75], [-64.53, -25.53], [-64.75, -25.0], [-64.65, -24.75], [-64.75, -24.5], [-64.54, -24.0]]]]}, "2022-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.54, -24.0], [-64.75, -23.5], [-64.65, -23.25], [-64.75, -23.0], [-64.65, -22.75], [-64.75, -22.5], [-64.53, -21.97], [-64.0, -21.75], [-63.75, -21.85], [-63.5, -21.75], [-63.25, -21.85], [-63.0, -21.75], [-62.47, -21.97], [-62.3, -22.38], [-62.18, -22.32], [-62.03, -21.97], [-61.5, -21.75], [-60.97, -21.97], [-60.75, -22.5], [-60.97, -23.03], [-61.32, -23.18], [-61.47, -23.53], [-61.82, -23.68], [-61.85, -23.75], [-61.75, -24.0], [-61.97, -24.53], [-62.5, -24.75], [-62.75, -24.65], [-62.82, -24.68], [-62.85, -24.75], [-62.75, -25.0], [-62.97, -25.53], [-63.5, -25.75], [-63.75, -25.65], [-64.0, -25.75], [-64.53, -25.53], [-64.75, -25.0], [-64.65, -24.75], [-64.75, -24.5], [-64.54, -24.0]]]]}, "2022-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.54, -24.0], [-64.75, -23.5], [-64.65, -23.25], [-64.75, -23.0], [-64.65, -22.75], [-64.75, -22.5], [-64.53, -21.97], [-64.0, -21.75], [-63.75, -21.85], [-63.5, -21.75], [-63.25, -21.85], [-63.0, -21.75], [-62.47, -21.97], [-62.3, -22.38], [-62.18, -22.32], [-62.03, -21.97], [-61.5, -21.75], [-60.97, -21.97], [-60.75, -22.5], [-60.97, -23.03], [-61.32, -23.18], [-61.47, -23.53], [-61.82, -23.68], [-61.85, -23.75], [-61.75, -24.0], [-61.97, -24.53], [-62.5, -24.75], [-62.75, -24.65], [-62.82, -24.68], [-62.85, -24.75], [-62.75, -25.0], [-62.97, -25.53], [-63.5, -25.75], [-63.75, -25.65], [-64.0, -25.75], [-64.53, -25.53], [-64.75, -25.0], [-64.65, -24.75], [-64.75, -24.5], [-64.54, -24.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.711527291917662}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.133899845732744}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.393705314985766, 13.092611843059046, 13.695264522203445]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.656749940789894, 11.74290218217351, 12.094690501156776]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.935495791101481, -7.423074642693522, -7.0431291034032295]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.504001966891565, -9.711527291917662, -8.029914090195518]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4455962742621562, -1.517527547998987, -1.4079787739429295]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.629205143626302, -1.7492389305815084, -1.5511938684706525]}}