{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:51.216709", "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": "2019-Nov-17_to_2019-Nov-20_302.5_-6.0"}, "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": 2019110000548}, "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 17 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 20 2019"}, "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": 55345.3069861781}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": -6.0}, "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": 302.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "302.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 299.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 303.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.18, -5.82], [-58.03, -5.47], [-57.5, -5.25], [-56.97, -5.47], [-56.75, -6.0], [-56.97, -6.53], [-57.32, -6.68], [-57.47, -7.03], [-58.0, -7.25], [-58.3, -7.12], [-58.47, -7.53], [-59.0, -7.75], [-59.53, -7.53], [-59.75, -7.0], [-59.53, -6.47], [-59.0, -6.25], [-58.7, -6.38], [-58.53, -5.97], [-58.18, -5.82]]]]}, "2019-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.12, -5.7], [-60.53, -5.53], [-60.75, -5.0], [-60.53, -4.47], [-60.0, -4.25], [-59.75, -4.35], [-59.5, -4.25], [-59.25, -4.35], [-59.0, -4.25], [-58.75, -4.35], [-58.5, -4.25], [-57.97, -4.47], [-57.75, -5.0], [-57.85, -5.25], [-57.8, -5.38], [-57.68, -5.32], [-57.53, -4.97], [-57.0, -4.75], [-56.75, -4.85], [-56.5, -4.75], [-55.97, -4.97], [-55.75, -5.5], [-55.85, -5.75], [-55.75, -6.0], [-55.85, -6.25], [-55.75, -6.5], [-55.97, -7.03], [-56.5, -7.25], [-57.03, -7.03], [-57.18, -6.68], [-57.25, -6.65], [-57.32, -6.68], [-57.47, -7.03], [-58.0, -7.25], [-58.25, -7.15], [-58.32, -7.18], [-58.47, -7.53], [-59.0, -7.75], [-59.53, -7.53], [-59.68, -7.18], [-60.03, -7.03], [-60.25, -6.5], [-60.15, -6.25], [-60.25, -6.0], [-60.12, -5.7]]]]}, "2019-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.12, -5.7], [-60.53, -5.53], [-60.75, -5.0], [-60.53, -4.47], [-60.0, -4.25], [-59.75, -4.35], [-59.5, -4.25], [-59.25, -4.35], [-59.0, -4.25], [-58.75, -4.35], [-58.5, -4.25], [-57.97, -4.47], [-57.75, -5.0], [-57.85, -5.25], [-57.8, -5.38], [-57.68, -5.32], [-57.53, -4.97], [-57.0, -4.75], [-56.75, -4.85], [-56.5, -4.75], [-55.97, -4.97], [-55.75, -5.5], [-55.85, -5.75], [-55.75, -6.0], [-55.85, -6.25], [-55.75, -6.5], [-55.97, -7.03], [-56.5, -7.25], [-57.03, -7.03], [-57.18, -6.68], [-57.25, -6.65], [-57.32, -6.68], [-57.47, -7.03], [-58.0, -7.25], [-58.25, -7.15], [-58.32, -7.18], [-58.47, -7.53], [-59.0, -7.75], [-59.53, -7.53], [-59.68, -7.18], [-60.03, -7.03], [-60.25, -6.5], [-60.15, -6.25], [-60.25, -6.0], [-60.12, -5.7]]]]}, "2019-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.12, -5.7], [-60.53, -5.53], [-60.75, -5.0], [-60.53, -4.47], [-60.0, -4.25], [-59.75, -4.35], [-59.5, -4.25], [-59.25, -4.35], [-59.0, -4.25], [-58.75, -4.35], [-58.5, -4.25], [-57.97, -4.47], [-57.75, -5.0], [-57.85, -5.25], [-57.8, -5.38], [-57.68, -5.32], [-57.53, -4.97], [-57.0, -4.75], [-56.75, -4.85], [-56.5, -4.75], [-55.97, -4.97], [-55.75, -5.5], [-55.85, -5.75], [-55.75, -6.0], [-55.85, -6.25], [-55.75, -6.5], [-55.97, -7.03], [-56.5, -7.25], [-57.03, -7.03], [-57.18, -6.68], [-57.25, -6.65], [-57.32, -6.68], [-57.47, -7.03], [-58.0, -7.25], [-58.25, -7.15], [-58.32, -7.18], [-58.47, -7.53], [-59.0, -7.75], [-59.53, -7.53], [-59.68, -7.18], [-60.03, -7.03], [-60.25, -6.5], [-60.15, -6.25], [-60.25, -6.0], [-60.12, -5.7]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.5445052849892136}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6962935815023725}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.218948550937, 24.961155923804256, 24.907750176191826, 24.466759394611927]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.806773870988764, 23.97577789803222, 23.88954126871272, 23.68830129940966]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.3508991962842554, -1.5487391112844224, -1.6014571298584315, -1.99625023423395]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.4782946272886193, -2.0542762689976826, -1.8933775271862032, -2.5445052849892136]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3282910224187028, -1.423291126496468, -1.4230006356087157, -1.7344855710850957]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4452931205694441, -1.728431519452523, -1.7821118188943585, -1.9999945612791459]}}