{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:17.022641", "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-Jun-11_to_2020-Jun-16_261.5_20.5"}, "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": 2020060000373}, "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 11 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 16 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 60626.31782346606}, "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": ["Mexico"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America", "S.Central-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": 20.5}, "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": 261.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "261.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 258.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 263.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.47, 22.03], [-97.25, 21.5], [-97.35, 21.25], [-97.32, 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[-99.75, 19.85], [-100.0, 19.75], [-100.53, 19.97], [-100.68, 20.32], [-101.03, 20.47], [-101.18, 20.82], [-101.53, 20.97], [-101.75, 21.5]]]]}, "2020-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.75, 21.5], [-101.53, 22.03], [-101.18, 22.18], [-101.03, 22.53], [-100.5, 22.75], [-100.25, 22.65], [-100.0, 22.75], [-99.47, 22.53], [-99.32, 22.18], [-98.97, 22.03], [-98.82, 21.68], [-98.7, 21.62], [-98.53, 22.03], [-98.0, 22.25], [-97.47, 22.03], [-97.32, 21.68], [-96.97, 21.53], [-96.75, 21.0], [-96.85, 20.75], [-96.82, 20.68], [-96.47, 20.53], [-96.25, 20.0], [-96.47, 19.47], [-96.82, 19.32], [-96.97, 18.97], [-97.5, 18.75], [-98.03, 18.97], [-98.18, 19.32], [-98.53, 19.47], [-98.68, 19.82], [-98.75, 19.85], [-99.0, 19.75], [-99.25, 19.85], [-99.5, 19.75], [-99.75, 19.85], [-100.0, 19.75], [-100.53, 19.97], [-100.68, 20.32], [-101.03, 20.47], [-101.18, 20.82], [-101.53, 20.97], [-101.75, 21.5]]]]}, "2020-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.75, 21.5], [-101.53, 22.03], [-101.18, 22.18], [-101.03, 22.53], [-100.5, 22.75], [-100.25, 22.65], [-100.0, 22.75], [-99.47, 22.53], [-99.32, 22.18], [-98.97, 22.03], [-98.82, 21.68], [-98.47, 21.53], [-98.32, 21.18], [-98.2, 21.12], [-98.03, 21.53], [-97.5, 21.75], [-96.97, 21.53], [-96.75, 21.0], [-96.87, 20.7], [-96.47, 20.53], [-96.25, 20.0], [-96.47, 19.47], [-96.82, 19.32], [-96.97, 18.97], [-97.5, 18.75], [-98.03, 18.97], [-98.18, 19.32], [-98.53, 19.47], [-98.68, 19.82], [-98.75, 19.85], [-99.0, 19.75], [-99.25, 19.85], [-99.5, 19.75], [-99.75, 19.85], [-100.0, 19.75], [-100.53, 19.97], [-100.68, 20.32], [-101.03, 20.47], [-101.18, 20.82], [-101.53, 20.97], [-101.75, 21.5]]]]}, "2020-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.53, 20.47], [-100.75, 21.0], [-100.53, 21.53], [-100.0, 21.75], [-99.75, 21.65], [-99.5, 21.75], [-98.97, 21.53], [-98.82, 21.18], [-98.75, 21.15], [-98.5, 21.25], [-97.97, 21.03], [-97.82, 20.68], 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