{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:34:35.685341", "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": "2023-Mar-28_to_2023-Apr-04_297.5_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": 2023030000926}, "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 28 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 04 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 58066.4025127826}, "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": ["Venezuela"]}, "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": 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": 297.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "297.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-03-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.5, 8.75], [-61.97, 8.53], [-61.75, 8.0], [-61.97, 7.47], [-62.5, 7.25], [-63.03, 7.47], [-63.25, 8.0], [-63.03, 8.53], [-62.5, 8.75]]]]}, "2023-03-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.5, 8.75], [-61.97, 8.53], [-61.75, 8.0], [-61.97, 7.47], [-62.5, 7.25], [-63.03, 7.47], [-63.25, 8.0], [-63.03, 8.53], [-62.5, 8.75]]]]}, "2023-03-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.5, 8.75], [-61.97, 8.53], [-61.75, 8.0], [-61.97, 7.47], [-62.5, 7.25], [-63.03, 7.47], [-63.25, 8.0], [-63.03, 8.53], [-62.5, 8.75]]]]}, "2023-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.65, 9.25], [-64.75, 9.5], [-64.53, 10.03], [-64.0, 10.25], [-63.75, 10.15], [-63.5, 10.25], [-63.25, 10.15], [-63.0, 10.25], [-62.47, 10.03], [-62.32, 9.68], [-62.25, 9.65], [-62.0, 9.75], [-61.47, 9.53], [-61.25, 9.0], [-61.35, 8.75], [-61.32, 8.68], [-60.97, 8.53], [-60.75, 8.0], [-60.97, 7.47], [-61.5, 7.25], [-61.75, 7.35], [-62.0, 7.25], [-62.25, 7.35], [-62.32, 7.32], [-62.47, 6.97], [-63.0, 6.75], [-63.53, 6.97], [-63.68, 7.32], [-64.03, 7.47], [-64.18, 7.82], [-64.53, 7.97], [-64.75, 8.5], [-64.65, 8.75], [-64.75, 9.0], [-64.65, 9.25]]]]}, "2023-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.65, 9.25], [-64.75, 9.5], [-64.53, 10.03], [-64.0, 10.25], [-63.75, 10.15], [-63.5, 10.25], [-63.25, 10.15], [-63.0, 10.25], [-62.47, 10.03], [-62.32, 9.68], [-62.25, 9.65], [-62.0, 9.75], [-61.47, 9.53], [-61.25, 9.0], [-61.35, 8.75], [-61.32, 8.68], [-60.97, 8.53], [-60.75, 8.0], [-60.97, 7.47], [-61.5, 7.25], [-61.75, 7.35], [-62.0, 7.25], [-62.25, 7.35], [-62.32, 7.32], [-62.47, 6.97], [-63.0, 6.75], [-63.53, 6.97], [-63.68, 7.32], [-64.03, 7.47], [-64.18, 7.82], [-64.53, 7.97], [-64.75, 8.5], [-64.65, 8.75], [-64.75, 9.0], [-64.65, 9.25]]]]}, "2023-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.65, 9.25], [-64.75, 9.5], [-64.53, 10.03], [-64.0, 10.25], [-63.75, 10.15], [-63.5, 10.25], [-63.25, 10.15], [-63.0, 10.25], 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