{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:44.310942", "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-Jul-30_to_2022-Aug-01_309.0_-2.0"}, "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": 2022070001177}, "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": "July 30 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 01 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": 52506.78296515414}, "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", "N.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": -2.0}, "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": 309.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "309.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 307.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 310.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.03, -0.97], [-52.5, -0.75], [-51.97, -0.97], [-51.82, -1.32], [-51.75, -1.35], [-51.68, -1.32], [-51.53, -0.97], [-51.0, -0.75], [-50.75, -0.85], [-50.68, -0.82], [-50.53, -0.47], [-50.0, -0.25], [-49.47, -0.47], [-49.25, -1.0], [-49.47, -1.53], [-49.82, -1.68], [-49.87, -1.8], [-49.75, -1.85], [-49.5, -1.75], [-48.97, -1.97], [-48.75, -2.5], [-48.97, -3.03], [-49.5, -3.25], [-49.75, -3.15], [-49.82, -3.18], [-49.97, -3.53], [-50.5, -3.75], [-50.75, -3.65], [-51.0, -3.75], [-51.25, -3.65], [-51.5, -3.75], [-52.03, -3.53], [-52.18, -3.18], [-52.53, -3.03], [-52.68, -2.68], [-53.03, -2.53], [-53.25, -2.0], [-53.15, -1.75], [-53.25, -1.5], [-53.03, -0.97]]]]}, "2022-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.03, -0.97], [-52.5, -0.75], [-51.97, -0.97], [-51.82, -1.32], [-51.75, -1.35], [-51.68, -1.32], [-51.53, -0.97], [-51.0, -0.75], [-50.75, -0.85], [-50.68, -0.82], [-50.53, -0.47], [-50.0, -0.25], [-49.47, -0.47], [-49.25, -1.0], [-49.47, -1.53], [-49.82, -1.68], [-49.87, -1.8], [-49.75, -1.85], [-49.5, -1.75], [-48.97, -1.97], [-48.75, -2.5], [-48.97, -3.03], [-49.5, -3.25], [-49.75, -3.15], [-49.82, -3.18], [-49.97, -3.53], [-50.5, -3.75], [-50.75, -3.65], [-51.0, -3.75], [-51.25, -3.65], [-51.5, -3.75], [-52.03, -3.53], [-52.18, -3.18], [-52.53, -3.03], [-52.68, -2.68], [-53.03, -2.53], [-53.25, -2.0], [-53.15, -1.75], [-53.25, -1.5], [-53.03, -0.97]]]]}, "2022-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.03, -0.97], [-52.5, -0.75], [-51.97, -0.97], [-51.82, -1.32], [-51.75, -1.35], [-51.68, -1.32], [-51.53, -0.97], [-51.0, -0.75], [-50.75, -0.85], [-50.68, -0.82], [-50.53, -0.47], [-50.0, -0.25], [-49.47, -0.47], [-49.25, -1.0], [-49.47, -1.53], [-49.82, -1.68], [-49.87, -1.8], [-49.75, -1.85], [-49.5, -1.75], [-48.97, -1.97], [-48.75, -2.5], [-48.97, -3.03], [-49.5, -3.25], [-49.75, -3.15], [-49.82, -3.18], [-49.97, -3.53], [-50.5, -3.75], [-50.75, -3.65], [-51.0, -3.75], [-51.25, -3.65], [-51.5, -3.75], [-52.03, -3.53], [-52.18, -3.18], [-52.53, -3.03], [-52.68, -2.68], [-53.03, -2.53], [-53.25, -2.0], [-53.15, -1.75], [-53.25, -1.5], [-53.03, -0.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.9901201320128052}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.332408182645923}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.877716724117306, 25.951979832213908, 25.62705479862126]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.348066452907858, 25.242051727687112, 25.134566866087823]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2331176724949875, -1.2012228717372897, -1.5628840037054923]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.681539654272683, -1.7165724484315206, -1.9901201320128052]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8501961919505354, -1.7612086609817073, -2.28860778743255]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.496407318311421, -2.3628856763510018, -2.9074529670749913]}}