{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:33.758580", "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": "2014-Jan-25_to_2014-Jan-28_312.5_-5.0"}, "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": 2014010001082}, "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 25 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 28 2014"}, "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": 138334.27790582544}, "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.E.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": -5.0}, "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": 312.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "312.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 311.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 315.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.5, -3.75], [-47.25, -3.85], [-47.0, -3.75], [-46.75, -3.85], [-46.68, -3.82], [-46.53, -3.47], [-46.0, -3.25], [-45.75, -3.35], [-45.5, -3.25], [-44.97, -3.47], [-44.82, -3.82], [-44.47, -3.97], [-44.25, -4.5], [-44.35, -4.75], [-44.25, -5.0], [-44.47, -5.53], [-45.0, -5.75], [-45.53, -5.53], [-45.68, -5.18], [-45.75, -5.15], [-45.82, -5.18], [-45.97, -5.53], [-46.5, -5.75], [-46.75, -5.65], [-47.0, -5.75], [-47.25, -5.65], [-47.5, -5.75], [-47.75, -5.65], [-48.0, -5.75], [-48.53, -5.53], [-48.75, -5.0], [-48.53, -4.47], [-48.18, -4.32], [-48.03, -3.97], [-47.5, -3.75]]]]}, "2014-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.65, -5.25], [-48.75, -5.0], [-48.53, -4.47], [-48.18, -4.32], [-48.03, -3.97], [-47.5, -3.75], [-47.25, -3.85], [-47.0, -3.75], [-46.75, -3.85], [-46.68, -3.82], [-46.53, -3.47], [-46.0, -3.25], [-45.75, -3.35], [-45.5, -3.25], [-44.97, -3.47], [-44.82, -3.82], [-44.75, -3.85], [-44.5, -3.75], [-43.97, -3.97], [-43.75, -4.5], [-43.97, -5.03], [-44.32, -5.18], [-44.35, -5.25], [-44.25, -5.5], [-44.47, -6.03], [-44.82, -6.18], [-44.85, -6.25], [-44.75, -6.5], [-44.97, -7.03], [-45.32, -7.18], [-45.46, -7.5], [-45.25, -8.0], [-45.47, -8.53], [-45.82, -8.68], [-45.97, -9.03], [-46.5, -9.25], [-46.75, -9.15], [-47.0, -9.25], [-47.53, -9.03], [-47.75, -8.5], [-47.62, -8.2], [-48.03, -8.03], [-48.25, -7.5], [-48.15, -7.25], [-48.25, -7.0], [-48.15, -6.75], [-48.18, -6.68], [-48.53, -6.53], [-48.75, -6.0], [-48.65, -5.75], [-48.75, -5.5], [-48.65, -5.25]]]]}, "2014-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.65, -5.25], [-48.75, -5.0], [-48.53, -4.47], [-48.18, -4.32], [-48.03, -3.97], [-47.5, -3.75], [-47.25, -3.85], [-47.0, -3.75], [-46.75, -3.85], [-46.68, -3.82], [-46.53, -3.47], [-46.0, -3.25], [-45.75, -3.35], [-45.5, -3.25], [-44.97, -3.47], [-44.82, -3.82], [-44.75, -3.85], [-44.5, -3.75], [-43.97, -3.97], [-43.75, -4.5], [-43.97, -5.03], [-44.32, -5.18], [-44.35, -5.25], [-44.25, -5.5], [-44.47, -6.03], [-44.82, -6.18], [-44.85, -6.25], [-44.75, -6.5], [-44.97, -7.03], [-45.32, -7.18], [-45.46, -7.5], [-45.25, -8.0], [-45.47, -8.53], [-45.82, -8.68], [-45.97, -9.03], [-46.5, -9.25], [-46.75, -9.15], [-47.0, -9.25], [-47.53, -9.03], [-47.75, -8.5], [-47.62, -8.2], [-48.03, -8.03], [-48.25, -7.5], [-48.15, -7.25], [-48.25, -7.0], [-48.15, -6.75], [-48.18, -6.68], [-48.53, -6.53], [-48.75, -6.0], [-48.65, -5.75], [-48.75, -5.5], [-48.65, -5.25]]]]}, "2014-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.65, -5.25], [-48.75, -5.0], [-48.53, -4.47], [-48.18, -4.32], [-48.03, -3.97], [-47.5, -3.75], [-47.25, -3.85], [-47.0, -3.75], [-46.75, -3.85], [-46.68, -3.82], [-46.53, -3.47], [-46.0, -3.25], [-45.75, -3.35], [-45.5, -3.25], [-44.97, -3.47], [-44.82, -3.82], [-44.75, -3.85], [-44.5, -3.75], [-43.97, -3.97], [-43.75, -4.5], [-43.97, -5.03], [-44.32, -5.18], [-44.35, -5.25], [-44.25, -5.5], [-44.47, -6.03], [-44.82, -6.18], [-44.85, -6.25], [-44.75, -6.5], [-44.97, -7.03], [-45.32, 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23.282579472418888, 23.0563847022093, 23.16720824567102]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.676632807816103, -1.5733955746259654, -1.7505892059620072, -1.8405449964975762]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.917002827775491, -1.9202572415462669, -1.9898395739317039, -2.2164246204569054]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6142814153821692, -1.5933346814631648, -1.7300326378125297, -1.7756118019291114]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.850811152682207, -1.8247284069747367, -2.0673359233536956, -2.162079415097706]}}