{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:20.230666", "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-Oct-17_to_2024-Oct-21_315.0_-11.5"}, "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": 2024100000348}, "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": "October 17 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 21 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 75521.39102642707}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -11.5}, "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": 315.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "315.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 312.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 317.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-46.68, -10.82], [-46.53, -10.47], [-46.0, -10.25], [-45.5, -10.46], [-45.0, -10.25], [-44.47, -10.47], [-44.25, -11.0], [-44.35, -11.25], [-44.32, -11.32], [-44.0, -11.46], [-43.5, -11.25], [-43.25, -11.35], [-43.0, -11.25], [-42.47, -11.47], [-42.32, -11.82], [-41.97, -11.97], [-41.75, -12.5], [-41.85, -12.75], [-41.75, -13.0], [-41.97, -13.53], [-42.5, -13.75], [-42.75, -13.65], [-43.0, -13.75], [-43.53, -13.53], [-43.68, -13.18], [-43.75, -13.15], [-44.0, -13.25], [-44.53, -13.03], [-44.68, -12.68], [-44.75, -12.65], [-45.0, -12.75], [-45.3, -12.62], [-45.35, -12.75], [-45.25, -13.0], [-45.35, -13.25], [-45.25, -13.5], [-45.47, -14.03], [-46.0, -14.25], [-46.53, -14.03], [-46.68, -13.68], [-47.03, -13.53], [-47.18, -13.18], [-47.25, -13.15], [-47.5, -13.25], [-48.03, -13.03], [-48.25, -12.5], [-48.03, -11.97], [-47.68, -11.82], [-47.53, -11.47], [-47.18, -11.32], [-47.03, -10.97], [-46.68, -10.82]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.52999999999997, -11.47], [-47.18000000000001, -11.32], [-47.02999999999997, -10.97], [-46.68000000000001, -10.82], [-46.52999999999997, -10.47], [-46.0, -10.25], [-45.5, -10.46], [-45.0, -10.25], [-44.47000000000003, -10.47], [-44.25, -11.0], [-44.35000000000002, -11.25], [-44.25, -11.5], [-44.35000000000002, -11.75], [-44.30000000000001, -11.88], [-44.18000000000001, -11.82], [-44.02999999999997, -11.47], [-43.5, -11.25], [-43.25, -11.35], [-43.0, -11.25], [-42.47000000000003, -11.47], [-42.31999999999999, -11.82], [-41.97000000000003, -11.97], [-41.75, -12.5], [-41.85000000000002, -12.75], [-41.75, -13.0], [-41.97000000000003, -13.53], [-42.5, -13.75], [-42.75, -13.65], [-43.0, -13.75], [-43.52999999999997, -13.53], [-43.68000000000001, -13.18], [-43.75, -13.15], [-44.0, -13.25], [-44.52999999999997, -13.03], [-44.69999999999999, -12.62], [-45.0, -12.75], [-45.30000000000001, -12.62], [-45.35000000000002, -12.75], [-45.25, -13.0], [-45.35000000000002, -13.25], [-45.25, -13.5], [-45.47000000000003, -14.03], [-46.0, -14.25], [-46.52999999999997, -14.03], [-46.68000000000001, -13.68], [-47.02999999999997, -13.53], [-47.18000000000001, -13.18], [-47.25, -13.15], [-47.5, -13.25], [-48.02999999999997, -13.03], [-48.25, -12.5], [-48.02999999999997, -11.97], [-47.68000000000001, -11.82], [-47.52999999999997, -11.47]]]]}, "2024-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.52999999999997, -11.47], [-47.18000000000001, -11.32], [-47.02999999999997, -10.97], [-46.68000000000001, -10.82], [-46.52999999999997, -10.47], [-46.0, -10.25], [-45.5, -10.46], [-45.0, -10.25], [-44.47000000000003, -10.47], [-44.25, -11.0], [-44.35000000000002, -11.25], [-44.31999999999999, -11.32], [-44.0, -11.46], [-43.5, -11.25], [-43.25, -11.35], [-43.0, -11.25], [-42.47000000000003, -11.47], [-42.31999999999999, -11.82], 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"2024-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.02999999999997, -12.03], [-46.25, -11.5], [-46.02999999999997, -10.97], [-45.5, -10.75], [-45.25, -10.85], [-45.0, -10.75], [-44.47000000000003, -10.97], [-44.25, -11.5], [-44.35000000000002, -11.75], [-44.25, -12.0], [-44.47000000000003, -12.53], [-45.0, -12.75], [-45.52999999999997, -12.53], [-45.68000000000001, -12.18], [-46.02999999999997, -12.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.224896388935065}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.0780171511456627}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.18992634648862, 24.504168446858728, 24.297625935872418, 25.161608632405603, 24.429213460286462]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.522559102376306, 22.0516131083171, 22.0078114827474, 23.697090403238974, 23.243747965494833]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.3502408689070773, -3.007038663334221, -3.102545515775896, -2.528020122158175, -2.8210522561810385]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.184996803529884, -3.542564917059053, -4.224896388935065, -2.871966096169217, -3.128469620975409]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.820663235734233, -1.6240782657245587, -1.6919473576723707, -1.4845193700821413, -1.6114110118336786]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.347584265959085, -2.1915368406408033, -2.3595546508165905, -1.596992036000754, -1.749619503601415]}}