{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:42.672589", "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-Jul-22_to_2020-Jul-24_288.0_-16.5"}, "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": 2020070000778}, "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": "July 22 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 24 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": 55448.03181574102}, "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": ["Chile", "Peru"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.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": -16.5}, "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": 288.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "288.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 286.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 290.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -22.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.75, -16.0], [-73.53, -15.47], [-73.0, -15.25], [-72.47, -15.47], [-72.32, -15.82], [-72.25, -15.85], [-72.0, -15.75], [-71.47, -15.97], [-71.32, -16.32], [-70.97, -16.47], [-70.82, -16.82], [-70.75, -16.85], [-70.5, -16.75], [-69.97, -16.97], [-69.82, -17.32], [-69.47, -17.47], [-69.25, -18.0], [-69.35, -18.25], [-69.25, -18.5], [-69.35, -18.75], [-69.25, -19.0], [-69.35, -19.25], [-69.32, -19.32], [-68.97, -19.47], [-68.75, -20.0], [-68.85, -20.25], [-68.75, -20.5], [-68.85, -20.75], [-68.75, -21.0], [-68.85, -21.25], [-68.75, -21.5], [-68.97, -22.03], [-69.32, -22.18], [-69.47, -22.53], [-70.0, -22.75], [-70.53, -22.53], [-70.75, -22.0], [-70.65, -21.75], [-70.75, -21.5], [-70.65, -21.25], [-70.75, -21.0], [-70.65, -20.75], [-70.75, -20.5], [-70.65, -20.25], [-70.75, -20.0], [-70.65, -19.75], [-70.75, -19.5], [-70.65, -19.25], [-70.75, -19.0], [-70.65, -18.75], [-70.75, -18.5], [-70.65, -18.25], [-70.68, -18.18], [-70.75, -18.15], [-71.0, -18.25], [-71.53, -18.03], [-71.68, -17.68], [-72.03, -17.53], [-72.18, -17.18], [-72.25, -17.15], [-72.5, -17.25], [-73.03, -17.03], [-73.18, -16.68], [-73.53, -16.53], [-73.75, -16.0]]]]}, "2020-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.75, -16.0], [-73.53, -15.47], [-73.0, -15.25], [-72.47, -15.47], [-72.32, -15.82], [-72.25, -15.85], [-72.0, -15.75], [-71.47, -15.97], [-71.32, -16.32], [-70.97, -16.47], [-70.82, -16.82], [-70.75, -16.85], [-70.5, -16.75], [-69.97, -16.97], [-69.82, -17.32], [-69.47, -17.47], [-69.25, -18.0], [-69.35, -18.25], [-69.25, -18.5], [-69.35, -18.75], [-69.25, -19.0], [-69.35, -19.25], [-69.32, -19.32], [-68.97, -19.47], [-68.75, -20.0], [-68.85, -20.25], [-68.75, -20.5], [-68.85, -20.75], [-68.75, -21.0], [-68.85, -21.25], [-68.75, -21.5], [-68.97, -22.03], [-69.32, -22.18], [-69.47, -22.53], [-70.0, -22.75], [-70.53, -22.53], [-70.75, -22.0], [-70.65, -21.75], [-70.75, -21.5], [-70.65, -21.25], [-70.75, -21.0], [-70.65, -20.75], [-70.75, -20.5], [-70.65, -20.25], [-70.75, -20.0], [-70.65, -19.75], [-70.75, -19.5], [-70.65, -19.25], [-70.75, -19.0], [-70.65, -18.75], [-70.75, -18.5], [-70.65, -18.25], [-70.68, -18.18], [-70.75, -18.15], [-71.0, -18.25], [-71.53, -18.03], [-71.68, -17.68], [-72.03, -17.53], [-72.18, -17.18], [-72.25, -17.15], [-72.5, -17.25], [-73.03, -17.03], [-73.18, -16.68], [-73.53, -16.53], [-73.75, -16.0]]]]}, "2020-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.75, -16.0], [-73.53, -15.47], [-73.0, -15.25], [-72.47, -15.47], [-72.32, -15.82], [-72.25, -15.85], [-72.0, -15.75], [-71.47, -15.97], [-71.32, -16.32], [-70.97, -16.47], [-70.82, -16.82], [-70.75, -16.85], [-70.5, -16.75], [-69.97, -16.97], [-69.82, -17.32], [-69.47, -17.47], [-69.25, -18.0], [-69.35, -18.25], [-69.25, -18.5], [-69.35, -18.75], [-69.25, -19.0], [-69.35, -19.25], [-69.32, -19.32], [-68.97, -19.47], [-68.75, -20.0], [-68.85, -20.25], [-68.75, -20.5], [-68.85, -20.75], [-68.75, -21.0], [-68.85, -21.25], [-68.75, -21.5], [-68.97, -22.03], [-69.32, -22.18], [-69.47, -22.53], 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13.215293979587443]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.30912275976533, 11.240555949087934, 10.96032320502951]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.448820339328081, -2.5875379969870695, -2.844176222367435]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.068768452594327, -3.7045381492359297, -5.293108520925159]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7945880606010487, -1.94329108072588, -2.124126243096972]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.338537234764718, -2.181246780386009, -3.1103736597788783]}}