{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:15.341139", "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-Jun-03_to_2022-Jun-06_298.5_-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": 2022060000210}, "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": "June 03 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 06 2022"}, "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": 120323.10999430278}, "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": -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": 298.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 300.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.25, -4.5], [-63.03, -3.97], [-62.5, -3.75], [-62.25, -3.85], [-62.0, -3.75], [-61.47, -3.97], [-61.32, -4.32], [-60.97, -4.47], [-60.75, -5.0], [-60.85, -5.25], [-60.75, -5.5], [-60.97, -6.03], [-61.5, -6.25], [-61.75, -6.15], [-62.0, -6.25], [-62.25, -6.15], [-62.32, -6.18], [-62.47, -6.53], [-63.0, -6.75], [-63.53, -6.53], [-63.75, -6.0], [-63.53, -5.47], [-63.18, -5.32], [-63.04, -5.0], [-63.25, -4.5]]]]}, "2022-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.25, -4.5], [-63.03, -3.97], [-62.62, -3.8], [-62.68, -3.68], [-63.03, -3.53], [-63.25, -3.0], [-63.15, -2.75], [-63.25, -2.5], [-63.03, -1.97], [-62.5, -1.75], [-62.25, -1.85], [-62.18, -1.82], [-62.15, -1.75], [-62.25, -1.5], [-62.03, -0.97], [-61.5, -0.75], [-61.25, -0.85], [-61.18, -0.82], [-61.03, -0.47], [-60.5, -0.25], [-60.25, -0.35], [-60.18, -0.32], [-60.03, 0.03], [-59.5, 0.25], [-58.97, 0.03], [-58.75, -0.5], [-58.97, -1.03], [-59.32, -1.18], [-59.35, -1.25], [-59.25, -1.5], [-59.35, -1.75], [-59.25, -2.0], [-59.47, -2.53], [-59.82, -2.68], [-59.87, -2.8], [-59.47, -2.97], [-59.25, -3.5], [-59.47, -4.03], [-59.82, -4.18], [-59.97, -4.53], [-60.32, -4.68], [-60.35, -4.75], [-60.25, -5.0], [-60.47, -5.53], [-60.82, -5.68], [-60.97, -6.03], [-61.5, -6.25], [-61.75, -6.15], [-62.0, -6.25], [-62.25, -6.15], [-62.32, -6.18], [-62.47, -6.53], [-63.0, -6.75], [-63.53, -6.53], [-63.75, -6.0], [-63.53, -5.47], [-63.18, -5.32], [-63.04, -5.0], [-63.25, -4.5]]]]}, "2022-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.25, -4.5], [-63.03, -3.97], [-62.62, -3.8], [-62.68, -3.68], [-63.03, -3.53], [-63.25, -3.0], [-63.15, -2.75], [-63.25, -2.5], [-63.03, -1.97], [-62.5, -1.75], [-62.25, -1.85], [-62.18, -1.82], [-62.15, -1.75], [-62.25, -1.5], [-62.03, -0.97], [-61.5, -0.75], [-61.25, -0.85], [-61.18, -0.82], [-61.03, -0.47], [-60.5, -0.25], [-60.25, -0.35], [-60.18, -0.32], [-60.03, 0.03], [-59.5, 0.25], [-58.97, 0.03], [-58.75, -0.5], [-58.97, -1.03], [-59.32, -1.18], [-59.35, -1.25], [-59.25, -1.5], [-59.35, -1.75], [-59.25, -2.0], [-59.47, -2.53], [-59.82, -2.68], [-59.87, -2.8], [-59.47, -2.97], [-59.25, -3.5], [-59.47, -4.03], [-59.82, -4.18], [-59.97, -4.53], [-60.32, -4.68], [-60.35, -4.75], [-60.25, -5.0], [-60.47, -5.53], [-60.82, -5.68], [-60.97, -6.03], [-61.5, -6.25], [-61.75, -6.15], [-62.0, -6.25], [-62.25, -6.15], [-62.32, -6.18], [-62.47, -6.53], [-63.0, -6.75], [-63.53, -6.53], [-63.75, -6.0], [-63.53, -5.47], [-63.18, -5.32], [-63.04, -5.0], [-63.25, -4.5]]]]}, "2022-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.03, -1.97], [-62.5, -1.75], [-62.25, -1.85], [-62.18, -1.82], [-62.15, -1.75], [-62.25, -1.5], [-62.03, -0.97], [-61.5, -0.75], [-61.25, -0.85], [-61.18, -0.82], [-61.03, -0.47], [-60.5, -0.25], [-60.25, -0.35], [-60.18, -0.32], [-60.03, 0.03], [-59.5, 0.25], [-58.97, 0.03], [-58.75, -0.5], [-58.97, -1.03], [-59.32, -1.18], [-59.35, -1.25], [-59.25, -1.5], [-59.35, -1.75], [-59.25, -2.0], [-59.47, -2.53], [-59.82, -2.68], [-59.87, -2.8], [-59.47, -2.97], [-59.25, -3.5], [-59.47, -4.03], [-59.82, -4.18], [-59.97, -4.53], [-60.32, -4.68], [-60.35, -4.75], [-60.25, -5.0], [-60.47, -5.53], [-60.82, -5.68], [-60.97, -6.03], [-61.5, -6.25], [-61.75, -6.15], [-62.0, -6.25], [-62.53, -6.03], [-62.75, -5.5], [-62.65, -5.25], [-62.75, -5.0], [-62.65, -4.75], [-62.75, -4.5], [-62.54, -4.0], [-62.68, -3.68], [-63.03, -3.53], [-63.25, -3.0], [-63.15, -2.75], [-63.25, -2.5], [-63.03, -1.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.2771461135003506}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.598712409730889}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.59052805010913, 24.376350981094674, 24.044648083802088, 24.313322296147305]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.409762323799328, 23.770957935787294, 23.374006699074414, 23.44250575289385]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2293521393135265, -1.49074485483338, -1.8240380719090332, -1.5536545202696144]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.3125778684463398, -1.8641977080222318, -2.2771461135003506, -2.095944396870607]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.40723197892055, -1.7100046602878554, -2.0705469109599077, -1.7429002229305757]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.507935270874038, -2.2041972992725873, -2.5647161946978922, -2.382846897060035]}}