{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:05.521413", "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": "2024-Feb-21_to_2024-Feb-24_274.0_12.0"}, "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": 2024020000494}, "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 21 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 24 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 102029.14811756049}, "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": ["Honduras", "Nicaragua"]}, "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"]}, "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": 12.0}, "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": 274.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "274.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 271.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 276.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.75}, "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": {"2024-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.75, 15.5], [-88.53, 16.03], [-88.0, 16.25], [-87.75, 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14.75], [-88.53, 14.97]]]]}, "2024-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.53, 14.97], [-88.75, 15.5], [-88.53, 16.03], [-88.0, 16.25], [-87.75, 16.15], [-87.5, 16.25], [-87.25, 16.15], [-87.0, 16.25], [-86.75, 16.15], [-86.5, 16.25], [-86.25, 16.15], [-86.0, 16.25], [-85.75, 16.15], [-85.5, 16.25], [-85.25, 16.15], [-85.0, 16.25], [-84.75, 16.15], [-84.5, 16.25], [-84.25, 16.15], [-84.0, 16.25], [-83.47, 16.03], [-83.25, 15.5], [-83.35, 15.25], [-83.25, 15.0], [-83.35, 14.75], [-83.25, 14.5], [-83.47, 13.97], [-83.82, 13.82], [-83.85, 13.75], [-83.82, 13.68], [-83.47, 13.53], [-83.25, 13.0], [-83.35, 12.75], [-83.25, 12.5], [-83.35, 12.25], [-83.25, 12.0], [-83.47, 11.47], [-84.0, 11.25], [-84.25, 11.35], [-84.5, 11.25], [-84.75, 11.35], [-85.0, 11.25], [-85.25, 11.35], [-85.5, 11.25], [-85.75, 11.35], [-86.0, 11.25], [-86.25, 11.35], [-86.5, 11.25], [-87.03, 11.47], [-87.25, 12.0], [-87.15, 12.25], [-87.25, 12.5], [-87.03, 13.03], [-86.5, 13.25], 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[-83.47, 13.97], [-83.82, 13.82], [-83.85, 13.75], [-83.82, 13.68], [-83.47, 13.53], [-83.25, 13.0], [-83.35, 12.75], [-83.25, 12.5], [-83.35, 12.25], [-83.25, 12.0], [-83.47, 11.47], [-84.0, 11.25], [-84.25, 11.35], [-84.5, 11.25], [-84.75, 11.35], [-85.0, 11.25], [-85.25, 11.35], [-85.5, 11.25], [-85.75, 11.35], [-86.0, 11.25], [-86.25, 11.35], [-86.5, 11.25], [-87.03, 11.47], [-87.25, 12.0], [-87.15, 12.25], [-87.25, 12.5], [-87.03, 13.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.3432362657302974}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.8059290802900927}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.27381704200627, 22.302107267085944, 22.184126904027096, 23.335783260005655]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.135270324445116, 18.19140126173602, 18.682302002581366, 19.481432977627207]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.085609031339999, -1.850849096505437, -2.0053805707344585, -1.394616830774196]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.8409770584798935, -3.3432362657302974, -2.835987783726466, -2.3019978618907544]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.47612530013247, -1.832430640383301, -2.0356477831510964, -1.5335940678670172]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6697497112480695, -2.3470115371542883, -3.1208658217414276, -2.333951030258838]}}