{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:53:38.596287", "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": "2024-Nov-14_to_2024-Nov-17_312.5_-16.5"}, "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": 2024110000261}, "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": "November 14 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 17 2024"}, "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": 55858.85227816032}, "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": []}, "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": -16.5}, "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": 312.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "312.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 311.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 314.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-11-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.03, -17.03], [-48.25, -16.5], [-48.03, -15.97], [-47.5, -15.75], [-47.25, -15.85], [-47.0, -15.75], [-46.47, -15.97], [-46.25, -16.5], [-46.47, -17.03], [-47.0, -17.25], [-47.25, -17.15], [-47.5, -17.25], [-48.03, -17.03]]]]}, "2024-11-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.25, -18.0], [-49.03, -17.47], [-48.68, -17.32], [-48.53, -16.97], [-48.18, -16.82], [-48.15, -16.75], [-48.25, -16.5], [-48.03, -15.97], [-47.5, -15.75], [-47.25, -15.85], [-47.0, -15.75], [-46.47, -15.97], [-46.25, -16.5], [-46.35, -16.75], [-46.25, -17.0], [-46.35, -17.25], [-46.3, -17.38], [-46.0, -17.25], [-45.47, -17.47], [-45.25, -18.0], [-45.35, -18.25], [-45.25, -18.5], [-45.47, -19.03], [-45.82, -19.18], [-45.97, -19.53], [-46.5, -19.75], [-46.75, -19.65], [-47.0, -19.75], [-47.25, -19.65], [-47.5, -19.75], [-47.75, -19.65], [-48.0, -19.75], [-48.53, -19.53], [-48.75, -19.0], [-48.65, -18.75], [-48.68, -18.68], [-49.03, -18.53], [-49.25, -18.0]]]]}, "2024-11-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.25, -18.0], [-49.03, -17.47], [-48.68, -17.32], [-48.53, -16.97], [-48.18, -16.82], [-48.15, -16.75], [-48.25, -16.5], [-48.03, -15.97], [-47.5, -15.75], [-47.25, -15.85], [-47.0, -15.75], [-46.47, -15.97], [-46.25, -16.5], [-46.35, -16.75], [-46.25, -17.0], [-46.35, -17.25], [-46.3, -17.38], [-46.0, -17.25], [-45.47, -17.47], [-45.25, -18.0], [-45.35, -18.25], [-45.25, -18.5], [-45.47, -19.03], [-45.82, -19.18], [-45.97, -19.53], [-46.5, -19.75], [-46.75, -19.65], [-47.0, -19.75], [-47.25, -19.65], [-47.5, -19.75], [-47.75, -19.65], [-48.0, -19.75], [-48.53, -19.53], [-48.75, -19.0], [-48.65, -18.75], [-48.68, -18.68], [-49.03, -18.53], [-49.25, -18.0]]]]}, "2024-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.25, -18.0], [-49.03, -17.47], [-48.68, -17.32], [-48.53, -16.97], [-48.18, -16.82], [-48.15, -16.75], [-48.25, -16.5], [-48.03, -15.97], [-47.5, -15.75], [-47.25, -15.85], [-47.0, -15.75], [-46.47, -15.97], [-46.25, -16.5], [-46.35, -16.75], [-46.25, -17.0], [-46.35, -17.25], [-46.3, -17.38], [-46.0, -17.25], [-45.47, -17.47], [-45.25, -18.0], [-45.35, -18.25], [-45.25, -18.5], [-45.47, -19.03], [-45.82, -19.18], [-45.97, -19.53], [-46.5, -19.75], [-46.75, -19.65], [-47.0, -19.75], [-47.25, -19.65], [-47.5, -19.75], [-47.75, -19.65], [-48.0, -19.75], [-48.53, -19.53], [-48.75, -19.0], [-48.65, -18.75], [-48.68, -18.68], [-49.03, -18.53], [-49.25, -18.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.204099419642489}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.4411664389790886}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.378341929117823, 20.83335573966042, 21.253393059446125, 20.810516076338956]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.97835820515951, 19.37757517496749, 20.106557464599632, 20.113301849365257]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3443483567375836, -2.6303123262046775, -2.1536986902329582, -2.5496796775776835]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.5137567202302193, -3.204099419642489, -2.6211556557481686, -3.1013329614168583]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4778778387664975, -1.6834523684988931, -1.4220201546620204, -1.736749664425784]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5073094410376962, -1.9640035278122592, -1.5578113661408293, -2.2105231038752726]}}