{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:49.453382", "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_-16.0"}, "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": 2024110000303}, "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": 102862.08385068875}, "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": -16.0}, "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": 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": 311.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 315.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-49.0, -16.75], [-48.75, -16.85], [-48.5, -16.75], [-48.25, -16.85], [-48.18, -16.82], [-48.15, -16.75], [-48.25, -16.5], [-48.15, -16.25], [-48.25, -16.0], [-48.03, -15.47], [-47.5, -15.25], [-47.25, -15.35], [-47.0, -15.25], [-46.47, -15.47], [-46.25, -16.0], [-46.35, -16.25], [-46.32, -16.32], [-45.97, -16.47], [-45.75, -17.0], [-45.87, -17.3], [-45.75, -17.35], [-45.5, -17.25], [-44.97, -17.47], [-44.82, -17.82], [-44.47, -17.97], [-44.25, -18.5], [-44.47, -19.03], [-44.82, -19.18], [-44.85, -19.25], [-44.75, -19.5], [-44.85, -19.75], [-44.75, -20.0], [-44.97, -20.53], [-45.5, -20.75], [-46.03, -20.53], [-46.25, -20.0], [-46.15, -19.75], [-46.18, -19.68], [-46.25, -19.65], [-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], [-48.68, -19.18], [-49.03, -19.03], [-49.25, -18.5], [-49.15, -18.25], [-49.18, -18.18], [-49.53, -18.03], [-49.75, -17.5], [-49.53, -16.97], [-49.0, -16.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America", "S.E.South-America"]}, "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": [[[[-48.25, -16.0], [-48.02999999999997, -15.47], [-47.5, -15.25], [-47.25, -15.35], [-47.0, -15.25], [-46.47000000000003, -15.47], [-46.25, -16.0], [-46.35000000000002, -16.25], [-46.31999999999999, -16.32], [-45.97000000000003, -16.47], [-45.75, -17.0], [-45.97000000000003, -17.53], [-46.5, -17.75], [-46.75, -17.65], [-47.0, -17.75], [-47.52999999999997, -17.53], [-47.68000000000001, -17.18], [-48.02999999999997, -17.03], [-48.25, -16.5], [-48.14999999999998, -16.25], [-48.25, -16.0]]]]}, "2024-11-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.52999999999997, -18.03], [-49.75, -17.5], [-49.52999999999997, -16.97], [-49.0, -16.75], [-48.75, -16.85], [-48.5, -16.75], [-48.25, -16.85], [-48.18000000000001, -16.82], [-48.14999999999998, -16.75], [-48.25, -16.5], [-48.14999999999998, -16.25], [-48.25, -16.0], [-48.02999999999997, -15.47], [-47.5, -15.25], [-47.25, -15.35], [-47.0, -15.25], [-46.47000000000003, -15.47], [-46.25, -16.0], [-46.35000000000002, -16.25], [-46.31999999999999, -16.32], [-45.97000000000003, -16.47], [-45.75, -17.0], [-45.870000000000005, -17.3], [-45.75, -17.35], [-45.5, -17.25], [-44.97000000000003, -17.47], [-44.81999999999999, -17.82], [-44.47000000000003, -17.97], [-44.25, -18.5], [-44.47000000000003, -19.03], [-44.81999999999999, -19.18], [-44.85000000000002, -19.25], [-44.75, -19.5], [-44.85000000000002, -19.75], [-44.75, -20.0], [-44.97000000000003, -20.53], [-45.5, -20.75], [-46.02999999999997, -20.53], [-46.25, -20.0], [-46.14999999999998, -19.75], [-46.18000000000001, -19.68], [-46.25, -19.65], [-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], [-48.52999999999997, -19.53], [-48.68000000000001, -19.18], [-49.02999999999997, -19.03], [-49.25, -18.5], [-49.14999999999998, -18.25], [-49.18000000000001, -18.18], [-49.52999999999997, -18.03]]]]}, "2024-11-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.52999999999997, -18.03], [-49.75, -17.5], [-49.52999999999997, -16.97], [-49.0, -16.75], [-48.75, -16.85], [-48.5, -16.75], [-48.25, -16.85], [-48.18000000000001, -16.82], [-48.14999999999998, -16.75], [-48.25, -16.5], [-48.14999999999998, -16.25], [-48.25, -16.0], [-48.02999999999997, -15.47], [-47.5, -15.25], [-47.25, -15.35], [-47.0, -15.25], [-46.47000000000003, -15.47], [-46.25, -16.0], [-46.35000000000002, -16.25], [-46.31999999999999, -16.32], [-45.97000000000003, -16.47], [-45.75, -17.0], [-45.870000000000005, -17.3], [-45.75, -17.35], [-45.5, -17.25], [-44.97000000000003, -17.47], [-44.81999999999999, -17.82], [-44.47000000000003, -17.97], [-44.25, -18.5], [-44.47000000000003, -19.03], [-44.81999999999999, -19.18], [-44.85000000000002, -19.25], [-44.75, -19.5], [-44.85000000000002, -19.75], [-44.75, -20.0], [-44.97000000000003, -20.53], [-45.5, -20.75], [-46.02999999999997, -20.53], [-46.25, -20.0], [-46.14999999999998, -19.75], [-46.18000000000001, -19.68], [-46.25, -19.65], [-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], [-48.52999999999997, -19.53], [-48.68000000000001, -19.18], [-49.02999999999997, -19.03], [-49.25, -18.5], [-49.14999999999998, -18.25], [-49.18000000000001, -18.18], [-49.52999999999997, -18.03]]]]}, "2024-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.52999999999997, -18.03], [-49.75, -17.5], [-49.52999999999997, -16.97], [-49.0, -16.75], [-48.75, -16.85], [-48.5, -16.75], [-48.25, -16.85], [-48.18000000000001, -16.82], [-48.14999999999998, -16.75], [-48.25, -16.5], [-48.14999999999998, -16.25], [-48.25, -16.0], [-48.02999999999997, -15.47], [-47.5, -15.25], [-47.25, -15.35], [-47.0, -15.25], [-46.47000000000003, -15.47], [-46.25, -16.0], [-46.35000000000002, -16.25], [-46.31999999999999, -16.32], [-45.97000000000003, -16.47], [-45.75, -17.0], [-45.870000000000005, -17.3], [-45.75, -17.35], [-45.5, -17.25], [-44.97000000000003, -17.47], [-44.81999999999999, -17.82], [-44.47000000000003, -17.97], [-44.25, -18.5], [-44.47000000000003, -19.03], [-44.81999999999999, -19.18], [-44.85000000000002, -19.25], [-44.75, -19.5], [-44.85000000000002, -19.75], [-44.75, -20.0], [-44.97000000000003, -20.53], [-45.5, -20.75], [-46.02999999999997, -20.53], [-46.25, -20.0], [-46.14999999999998, -19.75], [-46.18000000000001, -19.68], [-46.25, -19.65], [-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], [-48.52999999999997, -19.53], [-48.68000000000001, -19.18], [-49.02999999999997, -19.03], [-49.25, -18.5], [-49.14999999999998, -18.25], [-49.18000000000001, -18.18], [-49.52999999999997, -18.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.494769913811922}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.532320840505454}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.598041364881738, 21.004437619163866, 21.522452181861524, 21.073439498174764]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.686772918701195, 19.220918273925804, 19.730336761474632, 20.113301849365257]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.562723307347492, -2.7705009891158707, -2.202636143648059, -2.618613537293798]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.9483686737118546, -3.494769913811922, -2.819479178521931, -3.205413768030212]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6463938180797701, -1.9269391319660278, -1.6023781984986674, -1.9433105410174363]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8918029316159215, -2.376432267331801, -1.9675378634728449, -2.456761313998699]}}