{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:09.492255", "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": "2021-Feb-02_to_2021-Feb-04_271.5_18.0"}, "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": 2021020000150}, "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": "February 02 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 04 2021"}, "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": 228848.43880000687}, "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": ["Belize", "Guatemala", "Honduras", "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": ["Caribbean Sea", "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": 18.0}, "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": 271.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 267.25}, "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": 14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.25, 17.5], [-93.03, 18.03], [-92.62, 18.2], [-92.75, 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13.97], [-89.75, 14.5], [-89.65, 14.75], [-89.68, 14.82], [-90.0, 14.96], [-90.5, 14.75], [-90.75, 14.85], [-91.0, 14.75], [-91.53, 14.97], [-91.68, 15.32], [-92.03, 15.47], [-92.25, 16.0], [-92.15, 16.25], [-92.18, 16.32], [-92.53, 16.47], [-92.68, 16.82], [-93.03, 16.97], [-93.25, 17.5]], [[-90.62, 16.2], [-90.68, 16.32], [-90.75, 16.35], [-90.82, 16.32], [-90.85, 16.25], [-90.82, 16.18], [-90.75, 16.15], [-90.62, 16.2]]]]}, "2021-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.25, 17.5], [-93.03, 18.03], [-92.62, 18.2], [-92.75, 18.5], [-92.53, 19.03], [-92.0, 19.25], [-91.75, 19.15], [-91.68, 19.18], [-91.65, 19.25], [-91.75, 19.5], [-91.65, 19.75], [-91.75, 20.0], [-91.65, 20.25], [-91.75, 20.5], [-91.65, 20.75], [-91.75, 21.0], [-91.53, 21.53], [-91.18, 21.68], [-91.03, 22.03], [-90.5, 22.25], [-90.25, 22.15], [-90.0, 22.25], [-89.47, 22.03], [-89.25, 21.5], [-89.37, 21.2], [-89.25, 21.15], [-89.0, 21.25], [-88.75, 21.15], [-88.68, 21.18], [-88.53, 21.53], [-88.0, 21.75], [-87.75, 21.65], [-87.5, 21.75], [-86.97, 21.53], [-86.75, 21.0], [-86.97, 20.47], [-87.32, 20.32], [-87.35, 20.25], [-87.25, 20.0], [-87.35, 19.75], [-87.25, 19.5], [-87.35, 19.25], [-87.25, 19.0], [-87.47, 18.47], [-87.82, 18.32], [-87.85, 18.25], [-87.8, 18.12], [-87.5, 18.25], [-86.97, 18.03], [-86.82, 17.68], [-86.47, 17.53], [-86.25, 17.0], [-86.47, 16.47], [-86.82, 16.32], [-86.97, 15.97], [-87.5, 15.75], [-87.8, 15.88], [-87.96, 15.5], [-87.75, 15.0], [-87.97, 14.47], [-88.32, 14.32], [-88.47, 13.97], [-89.0, 13.75], [-89.53, 13.97], [-89.75, 14.5], [-89.65, 14.75], [-89.68, 14.82], [-90.0, 14.96], [-90.5, 14.75], [-90.75, 14.85], [-91.0, 14.75], [-91.53, 14.97], [-91.68, 15.32], [-92.03, 15.47], [-92.25, 16.0], [-92.15, 16.25], [-92.18, 16.32], [-92.53, 16.47], [-92.68, 16.82], [-93.03, 16.97], [-93.25, 17.5]], [[-90.62, 16.2], [-90.68, 16.32], [-90.75, 16.35], [-90.82, 16.32], [-90.85, 16.25], [-90.82, 16.18], [-90.75, 16.15], [-90.62, 16.2]]]]}, "2021-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.25, 17.5], [-93.03, 18.03], [-92.62, 18.2], [-92.75, 18.5], [-92.53, 19.03], [-92.0, 19.25], [-91.75, 19.15], [-91.68, 19.18], [-91.65, 19.25], [-91.75, 19.5], [-91.65, 19.75], [-91.75, 20.0], [-91.65, 20.25], [-91.75, 20.5], [-91.65, 20.75], [-91.75, 21.0], [-91.53, 21.53], [-91.18, 21.68], [-91.03, 22.03], [-90.5, 22.25], [-90.25, 22.15], [-90.0, 22.25], [-89.47, 22.03], [-89.25, 21.5], [-89.37, 21.2], [-89.25, 21.15], [-89.0, 21.25], [-88.75, 21.15], [-88.68, 21.18], [-88.53, 21.53], [-88.0, 21.75], [-87.75, 21.65], [-87.5, 21.75], [-86.97, 21.53], [-86.75, 21.0], [-86.97, 20.47], [-87.32, 20.32], [-87.35, 20.25], [-87.25, 20.0], [-87.35, 19.75], [-87.25, 19.5], [-87.35, 19.25], [-87.25, 19.0], [-87.47, 18.47], [-87.82, 18.32], [-87.85, 18.25], [-87.8, 18.12], [-87.5, 18.25], [-86.97, 18.03], [-86.82, 17.68], [-86.47, 17.53], [-86.25, 17.0], [-86.47, 16.47], [-86.82, 16.32], [-86.97, 15.97], [-87.5, 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20.046606972087716]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.206842686083064, 13.221757950964559, 14.362700436745229]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.1083329963490893, -4.682333689255218, -3.1176260166223755]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.554510831630353, -6.589598983729445, -4.382734318846815]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8510420495398388, -2.738201813192405, -1.8026376825757855]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.799150678293209, -3.638849742931564, -2.4903071326730446]}}