{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:39.293656", "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": "2021-Mar-24_to_2021-Mar-28_319.5_-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": 2021030001003}, "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": "March 24 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 28 2021"}, "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": 110952.01939849943}, "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": 319.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "319.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 317.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 322.25}, "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": -2.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.5, -3.25], [-39.97, -3.47], [-39.75, -4.0], [-39.97, -4.53], [-40.5, -4.75], [-41.03, -4.53], [-41.25, -4.0], [-41.03, -3.47], [-40.5, -3.25]]]]}, "2021-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-42.75, -3.0], [-42.53, -2.47], [-42.0, -2.25], [-41.75, -2.35], [-41.5, -2.25], [-41.25, -2.35], [-41.0, -2.25], [-40.75, -2.35], [-40.5, -2.25], [-40.25, -2.35], [-40.0, -2.25], [-39.47, -2.47], [-39.32, -2.82], [-39.25, -2.85], [-39.0, -2.75], [-38.47, -2.97], [-38.32, -3.32], [-37.97, -3.47], [-37.82, -3.82], [-37.47, -3.97], [-37.25, -4.5], [-37.47, -5.03], [-38.0, -5.25], [-38.25, -5.15], [-38.5, -5.25], [-38.75, -5.15], [-38.82, -5.18], [-38.85, -5.25], [-38.75, -5.5], [-38.97, -6.03], [-39.5, -6.25], [-39.75, -6.15], [-39.82, -6.18], [-39.97, -6.53], [-40.5, -6.75], [-40.75, -6.65], [-41.0, -6.75], [-41.53, -6.53], [-41.75, -6.0], [-41.65, -5.75], [-41.68, -5.68], [-42.03, -5.53], [-42.25, -5.0], [-42.15, -4.75], [-42.25, -4.5], [-42.04, -4.0], [-42.18, -3.68], [-42.53, -3.53], [-42.75, -3.0]]]]}, 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-2.47], [-42.0, -2.25], [-41.75, -2.35], [-41.5, -2.25], [-41.25, -2.35], [-41.0, -2.25], [-40.75, -2.35], [-40.5, -2.25], [-40.25, -2.35], [-40.0, -2.25], [-39.47, -2.47], [-39.32, -2.82], [-39.25, -2.85], [-39.0, -2.75], [-38.47, -2.97], [-38.32, -3.32], [-37.97, -3.47], [-37.82, -3.82], [-37.47, -3.97], [-37.25, -4.5], [-37.47, -5.03], [-38.0, -5.25], [-38.25, -5.15], [-38.5, -5.25], [-38.75, -5.15], [-38.82, -5.18], [-38.85, -5.25], [-38.75, -5.5], [-38.97, -6.03], [-39.5, -6.25], [-39.75, -6.15], [-39.82, -6.18], [-39.97, -6.53], [-40.5, -6.75], [-40.75, -6.65], [-41.0, -6.75], [-41.53, -6.53], [-41.75, -6.0], [-41.65, -5.75], [-41.68, -5.68], [-42.03, -5.53], [-42.25, -5.0], [-42.15, -4.75], [-42.25, -4.5], [-42.04, -4.0], [-42.18, -3.68], [-42.53, -3.53], [-42.75, -3.0]]]]}, "2021-03-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.15, -5.25], [-41.25, -5.0], [-41.03, -4.47], [-40.5, -4.25], [-39.97, -4.47], [-39.75, -5.0], [-39.85, -5.25], [-39.75, -5.5], 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[-1.116936063242747, -1.5405767040487666, -2.091116855067963, -1.6862689697020445, -1.2158213948164682]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.116936063242747, -2.1903735339404875, -2.7237274469135855, -2.1634541402738705, -1.2467112423502726]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.1400053502150573, -1.5970082873688116, -2.262522352606263, -1.8512723282491288, -1.3158583684572098]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.1400053502150573, -2.228361163125667, -3.1088456118289036, -2.391871550226906, -1.4284194550232516]}}