{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:16:54.242836", "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-Jan-26_to_2022-Jan-30_296.5_10.0"}, "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": 2022010000992}, "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": "January 26 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 30 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": 51910.806060434305}, "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": ["Venezuela, Bolivarian Republic of"]}, "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": 10.0}, "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": 296.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.5\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": 299.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-63.25, 11.15], [-63.0, 11.25], [-62.47, 11.03], [-62.25, 10.5], [-62.35, 10.25], [-62.32, 10.18], [-62.25, 10.15], [-62.0, 10.25], [-61.47, 10.03], [-61.25, 9.5], [-61.47, 8.97], [-61.87, 8.8], [-61.82, 8.68], [-61.75, 8.65], [-61.5, 8.75], [-61.25, 8.65], [-61.0, 8.75], [-60.75, 8.65], [-60.5, 8.75], [-59.97, 8.53], [-59.75, 8.0], [-59.97, 7.47], [-60.32, 7.32], [-60.47, 6.97], [-61.0, 6.75], [-61.53, 6.97], [-61.68, 7.32], [-61.75, 7.35], [-62.0, 7.25], [-62.25, 7.35], [-62.5, 7.25], [-62.75, 7.35], [-63.0, 7.25], [-63.53, 7.47], [-63.75, 8.0], [-63.65, 8.25], [-63.75, 8.5], [-63.65, 8.75], [-63.75, 9.0], [-63.65, 9.25], [-63.68, 9.32], [-64.03, 9.47], [-64.25, 10.0], [-64.15, 10.25], [-64.25, 10.5], [-64.03, 11.03], [-63.5, 11.25], [-63.25, 11.15]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.02999999999997, 10.53], [-63.5, 10.75], [-62.97000000000003, 10.53], [-62.75, 10.0], [-62.97000000000003, 9.47], [-63.5, 9.25], [-64.02999999999997, 9.47], [-64.25, 10.0], [-64.02999999999997, 10.53]]]]}, "2022-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, 10.5], [-64.02999999999997, 11.03], [-63.5, 11.25], [-63.25, 11.15], [-63.0, 11.25], [-62.47000000000003, 11.03], [-62.25, 10.5], [-62.35000000000002, 10.25], [-62.31999999999999, 10.18], [-62.25, 10.15], [-62.0, 10.25], [-61.47000000000003, 10.03], [-61.25, 9.5], [-61.47000000000003, 8.97], [-61.870000000000005, 8.8], [-61.81999999999999, 8.68], [-61.75, 8.65], [-61.5, 8.75], [-61.25, 8.65], [-61.0, 8.75], [-60.75, 8.65], [-60.5, 8.75], [-59.97000000000003, 8.53], [-59.75, 8.0], [-59.97000000000003, 7.47], [-60.31999999999999, 7.32], [-60.47000000000003, 6.97], [-61.0, 6.75], [-61.52999999999997, 6.97], [-61.68000000000001, 7.32], [-61.75, 7.35], [-62.0, 7.25], [-62.25, 7.35], [-62.5, 7.25], [-62.75, 7.35], [-63.0, 7.25], [-63.52999999999997, 7.47], [-63.75, 8.0], [-63.64999999999998, 8.25], [-63.75, 8.5], [-63.64999999999998, 8.75], [-63.75, 9.0], [-63.64999999999998, 9.25], [-63.68000000000001, 9.32], [-64.02999999999997, 9.47], [-64.25, 10.0], [-64.14999999999998, 10.25], [-64.25, 10.5]]]]}, "2022-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, 10.5], [-64.02999999999997, 11.03], [-63.5, 11.25], [-63.25, 11.15], [-63.0, 11.25], [-62.47000000000003, 11.03], [-62.25, 10.5], [-62.35000000000002, 10.25], [-62.31999999999999, 10.18], [-62.25, 10.15], [-62.0, 10.25], [-61.47000000000003, 10.03], [-61.25, 9.5], [-61.47000000000003, 8.97], [-61.870000000000005, 8.8], [-61.81999999999999, 8.68], [-61.75, 8.65], [-61.5, 8.75], [-61.25, 8.65], [-61.0, 8.75], [-60.75, 8.65], [-60.5, 8.75], [-59.97000000000003, 8.53], [-59.75, 8.0], [-59.97000000000003, 7.47], [-60.31999999999999, 7.32], [-60.47000000000003, 6.97], [-61.0, 6.75], [-61.52999999999997, 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anomalies.", "value": [-0.9998357836649348, -1.5637719756138007, -1.1975286186389151, -1.4033224631030086, -1.3872353857487951]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.9998357836649348, -2.18202685097242, -1.5722552442738902, -1.8826120126095134, -1.5125771215340365]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.38382826634485, -1.9904238423308251, -1.490731775806827, -1.6764712181162396, -1.6301749839050925]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.38382826634485, -2.3073447607973847, -1.81100922535112, -2.057580081898335, -1.959754866585785]}}