{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:20.595065", "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": "2013-Sep-01_to_2013-Sep-03_265.0_16.0"}, "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": 2013090000139}, "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": "September 01 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 03 2013"}, "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": 62756.45373980696}, "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": ["North Pacific Ocean"]}, "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": 16.0}, "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": 265.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "265.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 260.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 265.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.03, 12.97], [-100.25, 13.5], [-100.03, 14.03], [-99.5, 14.25], [-99.25, 14.15], [-99.0, 14.25], [-98.75, 14.15], [-98.68, 14.18], [-98.65, 14.25], [-98.75, 14.5], [-98.53, 15.03], [-98.18, 15.18], [-98.03, 15.53], [-97.5, 15.75], [-97.25, 15.65], [-97.18, 15.68], [-97.03, 16.03], [-96.5, 16.25], [-96.25, 16.15], [-96.18, 16.18], [-96.03, 16.53], [-95.5, 16.75], [-95.25, 16.65], [-95.0, 16.75], [-94.75, 16.65], [-94.5, 16.75], [-93.97, 16.53], [-93.75, 16.0], [-93.97, 15.47], [-94.32, 15.32], [-94.47, 14.97], [-94.82, 14.82], [-94.97, 14.47], [-95.5, 14.25], [-95.75, 14.35], [-96.0, 14.25], [-96.25, 14.35], [-96.32, 14.32], [-96.47, 13.97], [-96.82, 13.82], [-96.97, 13.47], [-97.32, 13.32], [-97.47, 12.97], [-98.0, 12.75], [-98.25, 12.85], [-98.5, 12.75], [-98.75, 12.85], [-99.0, 12.75], [-99.25, 12.85], [-99.5, 12.75], [-100.03, 12.97]]]]}, "2013-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.03, 12.97], [-100.25, 13.5], [-100.03, 14.03], [-99.5, 14.25], [-99.25, 14.15], [-99.0, 14.25], [-98.75, 14.15], [-98.68, 14.18], [-98.65, 14.25], [-98.75, 14.5], [-98.53, 15.03], [-98.18, 15.18], [-98.03, 15.53], [-97.5, 15.75], [-97.25, 15.65], [-97.18, 15.68], [-97.03, 16.03], [-96.5, 16.25], [-96.25, 16.15], [-96.18, 16.18], [-96.03, 16.53], [-95.5, 16.75], [-95.25, 16.65], [-95.0, 16.75], [-94.75, 16.65], [-94.5, 16.75], [-93.97, 16.53], [-93.75, 16.0], [-93.97, 15.47], [-94.32, 15.32], [-94.47, 14.97], [-94.82, 14.82], [-94.97, 14.47], [-95.5, 14.25], [-95.75, 14.35], [-96.0, 14.25], [-96.25, 14.35], [-96.32, 14.32], [-96.47, 13.97], [-96.82, 13.82], [-96.97, 13.47], [-97.32, 13.32], [-97.47, 12.97], [-98.0, 12.75], [-98.25, 12.85], [-98.5, 12.75], [-98.75, 12.85], [-99.0, 12.75], [-99.25, 12.85], [-99.5, 12.75], [-100.03, 12.97]]]]}, "2013-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.03, 12.97], [-100.25, 13.5], [-100.03, 14.03], [-99.5, 14.25], [-99.25, 14.15], [-99.0, 14.25], [-98.75, 14.15], [-98.68, 14.18], [-98.65, 14.25], [-98.75, 14.5], [-98.53, 15.03], [-98.18, 15.18], [-98.03, 15.53], [-97.5, 15.75], [-97.25, 15.65], [-97.18, 15.68], [-97.03, 16.03], [-96.5, 16.25], [-96.25, 16.15], [-96.18, 16.18], [-96.03, 16.53], [-95.5, 16.75], [-95.25, 16.65], [-95.0, 16.75], [-94.75, 16.65], [-94.5, 16.75], [-93.97, 16.53], [-93.75, 16.0], [-93.97, 15.47], [-94.32, 15.32], [-94.47, 14.97], [-94.82, 14.82], [-94.97, 14.47], [-95.5, 14.25], [-95.75, 14.35], [-96.0, 14.25], [-96.25, 14.35], [-96.32, 14.32], [-96.47, 13.97], [-96.82, 13.82], [-96.97, 13.47], [-97.32, 13.32], [-97.47, 12.97], [-98.0, 12.75], [-98.25, 12.85], [-98.5, 12.75], [-98.75, 12.85], [-99.0, 12.75], [-99.25, 12.85], [-99.5, 12.75], [-100.03, 12.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.7919394262891615}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.2659127623820785}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.24098027843786, 26.233595223830832, 26.4173448923832]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.960883136903533, 25.805172901034098, 25.95292600060162]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.298015739635941, -1.3305314600838538, -1.1691910874264408]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.7919394262891615, -1.6894158350800694, -1.564992960395955]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.653610251067888, -1.7154933187411596, -1.5107255545949574]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1613266345486895, -1.9645864212112212, -1.852983319318656]}}