{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:54.708250", "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": "2018-Jun-13_to_2018-Jun-18_269.5_21.5"}, "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": 2018060000498}, "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 13 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 18 2018"}, "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": 104094.52460277555}, "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": ["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": ["Gulf of Mexico"]}, "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": 21.5}, "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": 269.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "269.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 268.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 273.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.5, 22.25], [-88.25, 22.15], [-88.0, 22.25], [-87.47, 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21.5], [-86.35, 21.25], [-86.25, 21.0], [-86.47, 20.47], [-86.82, 20.32], [-86.97, 19.97], [-87.32, 19.82], [-87.47, 19.47], [-87.82, 19.32], [-87.85, 19.25], [-87.75, 19.0], [-87.97, 18.47], [-88.5, 18.25], [-88.75, 18.35], [-89.0, 18.25], [-89.25, 18.35], [-89.5, 18.25], [-90.03, 18.47], [-90.18, 18.82], [-90.53, 18.97], [-90.75, 19.5], [-90.65, 19.75], [-90.75, 20.0], [-90.65, 20.25]]]]}, "2018-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.25, 21.5], [-91.03, 22.03], [-90.5, 22.25], [-90.25, 22.15], [-90.0, 22.25], [-89.47, 22.03], [-89.32, 21.68], [-89.25, 21.65], [-89.18, 21.68], [-89.03, 22.03], [-88.68, 22.18], [-88.65, 22.25], [-88.75, 22.5], [-88.53, 23.03], [-88.0, 23.25], [-87.47, 23.03], [-87.32, 22.68], [-86.97, 22.53], [-86.82, 22.18], [-86.47, 22.03], [-86.25, 21.5], [-86.35, 21.25], [-86.25, 21.0], [-86.47, 20.47], [-86.82, 20.32], [-86.97, 19.97], [-87.32, 19.82], [-87.47, 19.47], [-87.82, 19.32], [-87.85, 19.25], [-87.75, 19.0], [-87.97, 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