{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:56.816128", "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": "2020-May-29_to_2020-May-31_323.0_-8.0"}, "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": 2020050000694}, "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": "May 29 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 31 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 58158.36002061681}, "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": -8.0}, "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": 323.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "323.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 320.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 323.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.53, -6.97], [-39.0, -6.75], [-38.75, -6.85], [-38.68, -6.82], [-38.65, -6.75], [-38.75, -6.5], [-38.53, -5.97], [-38.0, -5.75], [-37.47, -5.97], [-37.32, -6.32], [-36.97, -6.47], [-36.75, -7.0], [-36.85, -7.25], [-36.82, -7.32], [-36.47, -7.47], [-36.25, -8.0], [-36.35, -8.25], [-36.25, -8.5], [-36.35, -8.75], [-36.25, -9.0], [-36.47, -9.53], [-37.0, -9.75], [-37.25, -9.65], [-37.5, -9.75], [-37.75, -9.65], [-38.0, -9.75], [-38.53, -9.53], [-38.68, -9.18], [-39.03, -9.03], [-39.18, -8.68], [-39.53, -8.53], [-39.75, -8.0], [-39.65, -7.75], [-39.75, -7.5], [-39.53, -6.97]]]]}, "2020-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.53, -6.97], [-39.0, -6.75], [-38.75, -6.85], [-38.68, -6.82], [-38.65, -6.75], [-38.75, -6.5], [-38.53, -5.97], [-38.0, -5.75], [-37.47, -5.97], [-37.32, -6.32], [-36.97, -6.47], [-36.75, -7.0], [-36.85, -7.25], [-36.82, -7.32], [-36.47, -7.47], [-36.25, -8.0], [-36.35, -8.25], [-36.25, -8.5], [-36.35, -8.75], [-36.25, -9.0], [-36.47, -9.53], [-37.0, -9.75], [-37.25, -9.65], [-37.5, -9.75], [-37.75, -9.65], [-38.0, -9.75], [-38.53, -9.53], [-38.68, -9.18], [-39.03, -9.03], [-39.18, -8.68], [-39.53, -8.53], [-39.75, -8.0], [-39.65, -7.75], [-39.75, -7.5], [-39.53, -6.97]]]]}, "2020-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-39.53, -6.97], [-39.0, -6.75], [-38.75, -6.85], [-38.68, -6.82], [-38.65, -6.75], [-38.75, -6.5], [-38.53, -5.97], [-38.0, -5.75], [-37.47, -5.97], [-37.32, -6.32], [-36.97, -6.47], [-36.75, -7.0], [-36.85, -7.25], [-36.82, -7.32], [-36.47, -7.47], [-36.25, -8.0], [-36.35, -8.25], [-36.25, -8.5], [-36.35, -8.75], [-36.25, -9.0], [-36.47, -9.53], [-37.0, -9.75], [-37.25, -9.65], [-37.5, -9.75], [-37.75, -9.65], [-38.0, -9.75], [-38.53, -9.53], [-38.68, -9.18], [-39.03, -9.03], [-39.18, -8.68], [-39.53, -8.53], [-39.75, -8.0], [-39.65, -7.75], [-39.75, -7.5], [-39.53, -6.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.974371030123507}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.1055488297983307}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.77479187099874, 22.435668175499757, 22.97046487553507]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.74699564473002, 20.612517831565185, 21.12710289777334]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.1194795192356626, -2.39571872654931, -1.8014482436100192]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.590222698715138, -2.974371030123507, -2.1401423376314597]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.810292753738979, -2.050508474077309, -1.5743151248522562]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3477412115596374, -2.5268408448939574, -1.8716917704452078]}}