{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:25:13.755694", "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-Dec-22_to_2022-Dec-29_311.5_-8.0"}, "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": 2022120001014}, "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": "December 22 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 29 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 67411.3903541287}, "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": -8.0}, "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": 311.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "311.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 308.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 312.0}, "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": -6.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-47.47, -7.47], [-47.25, -8.0], [-47.35, -8.25], [-47.25, -8.5], [-47.47, -9.03], [-48.0, -9.25], [-48.25, -9.15], [-48.5, -9.25], [-49.03, -9.03], [-49.18, -8.68], [-49.25, -8.65], [-49.5, -8.75], [-50.03, -8.53], [-50.18, -8.18], [-50.5, -8.04], [-51.0, -8.25], [-51.25, -8.15], [-51.32, -8.18], [-51.35, -8.25], [-51.25, -8.5], [-51.47, -9.03], [-52.0, -9.25], [-52.53, -9.03], [-52.75, -8.5], [-52.65, -8.25], [-52.75, -8.0], [-52.65, -7.75], [-52.75, -7.5], [-52.53, -6.97], [-52.0, -6.75], [-51.75, -6.85], [-51.68, -6.82], [-51.53, -6.47], [-51.18, -6.32], [-51.03, -5.97], [-50.5, -5.75], [-50.25, -5.85], [-50.0, -5.75], [-49.47, -5.97], [-49.32, -6.32], [-49.25, -6.35], [-49.0, -6.25], [-48.47, -6.47], [-48.32, -6.82], [-47.97, -6.97], [-47.82, -7.32], [-47.47, -7.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America", "N.E.South-America", "South-American-Monsoon"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": 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duration", "value": -2.488466398384219}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6054967139694316}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.214253276984323, 23.99336483188432, 24.16544959902103, 24.383827948153908, 23.768419092843942, 23.58423603553757, 23.510363218658142, 22.670055715083322]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.214253276984323, 23.99336483188432, 23.90805526156811, 24.177460997843184, 22.824300269944217, 22.591956353316732, 22.380973521831663, 22.268372975229454]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.3591944758076124, -1.5998174856394485, -1.7973503336411056, -1.5536725343733337, -1.6659363194951102, -1.5269098640675054, 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