{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:41.195250", "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": "2019-Oct-31_to_2019-Nov-03_262.5_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": 2019100000993}, "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": "October 31 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 03 2019"}, "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": 85749.54613461017}, "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": ["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": 262.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "262.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 260.75}, "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": 20.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.65, 23.75], [-99.75, 24.0], [-99.53, 24.53], [-99.0, 24.75], [-98.75, 24.65], [-98.68, 24.68], [-98.53, 25.03], [-98.0, 25.25], [-97.47, 25.03], [-97.25, 24.5], [-97.35, 24.25], [-97.32, 24.18], [-96.97, 24.03], [-96.75, 23.5], [-96.85, 23.25], [-96.75, 23.0], [-96.85, 22.75], [-96.75, 22.5], [-96.85, 22.25], [-96.82, 22.18], [-96.47, 22.03], [-96.25, 21.5], [-96.47, 20.97], [-97.0, 20.75], [-97.25, 20.85], [-97.5, 20.75], [-98.03, 20.97], [-98.18, 21.32], [-98.53, 21.47], [-98.68, 21.82], [-99.03, 21.97], [-99.18, 22.32], [-99.53, 22.47], [-99.75, 23.0], [-99.65, 23.25], [-99.75, 23.5], [-99.65, 23.75]]]]}, "2019-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.54, 22.5], [-99.75, 23.0], [-99.65, 23.25], [-99.75, 23.5], [-99.65, 23.75], [-99.75, 24.0], [-99.53, 24.53], [-99.0, 24.75], [-98.75, 24.65], [-98.68, 24.68], [-98.53, 25.03], [-98.0, 25.25], [-97.47, 25.03], [-97.25, 24.5], [-97.35, 24.25], [-97.32, 24.18], [-96.97, 24.03], [-96.75, 23.5], [-96.85, 23.25], [-96.75, 23.0], [-96.85, 22.75], [-96.75, 22.5], [-96.85, 22.25], [-96.82, 22.18], [-96.47, 22.03], [-96.25, 21.5], [-96.35, 21.25], [-96.25, 21.0], [-96.35, 20.75], [-96.25, 20.5], [-96.47, 19.97], [-97.0, 19.75], [-97.25, 19.85], [-97.5, 19.75], [-98.03, 19.97], [-98.18, 20.32], [-98.25, 20.35], [-98.5, 20.25], [-99.03, 20.47], [-99.18, 20.82], [-99.53, 20.97], [-99.75, 21.5], [-99.65, 21.75], [-99.75, 22.0], [-99.54, 22.5]]]]}, "2019-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.54, 22.5], [-99.75, 23.0], [-99.65, 23.25], [-99.75, 23.5], [-99.65, 23.75], [-99.75, 24.0], [-99.53, 24.53], [-99.0, 24.75], [-98.75, 24.65], [-98.68, 24.68], [-98.53, 25.03], [-98.0, 25.25], [-97.47, 25.03], [-97.25, 24.5], [-97.35, 24.25], [-97.32, 24.18], [-96.97, 24.03], [-96.75, 23.5], [-96.85, 23.25], [-96.75, 23.0], [-96.85, 22.75], [-96.75, 22.5], [-96.85, 22.25], [-96.82, 22.18], [-96.47, 22.03], [-96.25, 21.5], [-96.35, 21.25], [-96.25, 21.0], [-96.35, 20.75], [-96.25, 20.5], [-96.47, 19.97], [-97.0, 19.75], [-97.25, 19.85], [-97.5, 19.75], [-98.03, 19.97], [-98.18, 20.32], [-98.25, 20.35], [-98.5, 20.25], [-99.03, 20.47], [-99.18, 20.82], [-99.53, 20.97], [-99.75, 21.5], [-99.65, 21.75], [-99.75, 22.0], [-99.54, 22.5]]]]}, "2019-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.53, 22.53], [-99.0, 22.75], [-98.75, 22.65], [-98.5, 22.75], [-98.25, 22.65], [-98.0, 22.75], [-97.47, 22.53], [-97.32, 22.18], [-96.97, 22.03], [-96.82, 21.68], [-96.47, 21.53], [-96.25, 21.0], [-96.35, 20.75], [-96.25, 20.5], [-96.47, 19.97], [-97.0, 19.75], [-97.25, 19.85], [-97.5, 19.75], [-98.03, 19.97], [-98.18, 20.32], [-98.25, 20.35], [-98.5, 20.25], [-99.03, 20.47], [-99.18, 20.82], [-99.53, 20.97], [-99.75, 21.5], [-99.65, 21.75], [-99.75, 22.0], [-99.53, 22.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.13448266051239}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.641582930097547}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.15717680259229, 17.372894895132447, 19.49725403337544, 20.017436501203065]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.991225237169203, 14.14581819836934, 16.069504657850757, 17.486566795748217]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.5279041466766214, -6.083764834458797, -3.8734643387913765, -3.25219812189333]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.13448266051239, -6.848099697909845, -4.9326138549132, -4.2329476845831095]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9076216660782226, -2.6305662164334693, -1.6054354655698986, -1.4294142915303643]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.557898770624717, -3.783400602282196, -1.9665555251617062, -1.7072577772093198]}}