{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:32.435855", "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-Feb-19_to_2022-Feb-21_306.5_-15.5"}, "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": 2022020000783}, "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": "February 19 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 21 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": 89496.50776886607}, "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": -15.5}, "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": 306.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "306.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 306.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 309.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-54.53, -14.97], [-54.18, -14.82], [-54.03, -14.47], [-53.68, -14.32], [-53.53, -13.97], [-53.18, -13.82], [-53.15, 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[-54.75, -15.5], [-54.53, -14.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America", "South-American-Monsoon"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.52999999999997, -16.03], [-54.75, -15.5], [-54.52999999999997, -14.97], [-54.18000000000001, -14.82], [-54.02999999999997, -14.47], [-53.68000000000001, -14.32], [-53.52999999999997, -13.97], [-53.18000000000001, -13.82], [-53.14999999999998, -13.75], [-53.18000000000001, -13.68], [-53.52999999999997, -13.53], [-53.75, -13.0], [-53.64999999999998, -12.75], [-53.75, -12.5], [-53.52999999999997, -11.97], [-53.0, -11.75], [-52.75, -11.85], [-52.5, -11.75], [-51.97000000000003, -11.97], [-51.75, -12.5], [-51.85000000000002, -12.75], [-51.81999999999999, -12.82], [-51.75, -12.85], [-51.5, 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anomalies.", "value": [-2.530036395610684, -2.542353393427358, -1.7071508676253928]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.197989376012231, -3.205864088280805, -2.1860049466230294]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.02214695175575, -2.0986501850694586, -1.4320303786074775]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.4778654374450952, -2.661907819717593, -1.8482582657779478]}}