{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:33.407907", "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-Oct-14_to_2022-Oct-18_298.5_-7.5"}, "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": 2022100000605}, "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 14 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 18 2022"}, "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": 67537.73563761242}, "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": -7.5}, "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": 298.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 299.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-60.35, -7.75], [-60.25, -8.0], [-60.35, -8.25], [-60.25, -8.5], [-60.47, -9.03], [-61.0, -9.25], [-61.25, -9.15], [-61.5, -9.25], [-62.03, -9.03], [-62.25, -8.5], [-62.15, -8.25], [-62.25, -8.0], [-62.15, -7.75], [-62.18, -7.68], [-62.53, -7.53], [-62.68, -7.18], [-63.03, -7.03], [-63.18, -6.68], [-63.53, -6.53], [-63.68, -6.18], [-64.03, -6.03], [-64.25, -5.5], [-64.15, -5.25], [-64.25, -5.0], [-64.03, -4.47], [-63.5, -4.25], [-62.97, -4.47], [-62.82, -4.82], [-62.75, -4.85], [-62.5, -4.75], [-62.25, -4.85], [-62.0, -4.75], [-61.47, -4.97], [-61.32, -5.32], [-60.97, -5.47], [-60.82, -5.82], [-60.47, -5.97], [-60.25, -6.5], [-60.35, -6.75], [-60.25, -7.0], [-60.35, -7.25], [-60.25, -7.5], [-60.35, -7.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America", "South-American-Monsoon"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.75, -5.5], 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"coordinates": [[[[-62.02999999999997, -6.97], [-61.5, -6.75], [-61.25, -6.85], [-61.0, -6.75], [-60.47000000000003, -6.97], [-60.25, -7.5], [-60.35000000000002, -7.75], [-60.25, -8.0], [-60.47000000000003, -8.53], [-61.0, -8.75], [-61.25, -8.65], [-61.5, -8.75], [-62.02999999999997, -8.53], [-62.25, -8.0], [-62.14999999999998, -7.75], [-62.25, -7.5], [-62.02999999999997, -6.97]]], [[[-64.02999999999997, -4.47], [-63.5, -4.25], [-62.97000000000003, -4.47], [-62.81999999999999, -4.82], [-62.47000000000003, -4.97], [-62.25, -5.5], [-62.35000000000002, -5.75], [-62.25, -6.0], [-62.47000000000003, -6.53], [-63.0, -6.75], [-63.52999999999997, -6.53], [-63.68000000000001, -6.18], [-64.02999999999997, -6.03], [-64.25, -5.5], [-64.14999999999998, -5.25], [-64.25, -5.0], [-64.02999999999997, -4.47]]]]}, "2022-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -5.0], [-64.02999999999997, -4.47], [-63.5, -4.25], [-62.97000000000003, -4.47], [-62.75, -5.0], 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mean t2m anomalies.", "value": [-1.7543289155509838, -1.7278608837557925, -1.7386889960572747, -1.447302610957557, -1.4806926705229273]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.0430773336515244, -2.3420029986702957, -2.0437618456517157, -1.5644656668174548, -1.7021076718892232]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6651600115323046, -1.6230672871036116, -1.6124000696692262, -1.3779747858541365, -1.378971665010158]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.928531542662896, -2.1629838725657096, -1.8842893043578133, -1.4379881755425774, -1.5509034594435782]}}